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Ditek Surge Protection
Surge Protection is your first line of defense to protect your Video Surveillance, Fire, Networking, Communications, Intrusion Detection, Access Control and AC Power systems.
Ditek, an industry leader in the design and manufacturing of surge protection solutions, incorporates the latest technologies for maximum performance and protection from electrical surges.
- Variety of mounting options: Wallmount, Rackmount, DIN rail and standalone options
- Modular: Many models have fast, easy to replace protection modules -- get back up and running fast
- Standards based: UL, IEC certified
Typical Surge Protection Applications
Ditek supports literally dozens of different configurations and applications, including:
- Antenna - including GPS, GSM, LTE
- CoAX for Satellite and CATV
- Ethernet - single and multiport, rackmount or standalone, w/ and w/o PoE, 10GbE support
- Low voltage wiring - Dry/wet contacts, Burglar/fire, Access control systems, HVAC
- Residential electric 110/220
- Commercial electric - up to 690V
Contact PSI to learn how DITEK can extend the life of your electronic systems, enhance system uptime, and protect against many kinds of losses, including downtime, lost sales, lost data, legal vulnerabilities, and customer dissatisfaction.
There are many more options than can be listed and discussed here. We can help you select the surge protectors that are right for you and your situation?
Ditek Surge Protection proudly manufactured in Largo, FL.
Low Voltage Protection
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DTK-DRB - Dry Contacts, Fire/Burglar, Access Control, HVAC
DITEK’s DTK-DRB Series of low voltage DIN Rail surge protectors provide robust protection in a compact package. This series offers high-performance surge protection for critical low voltage applications within industrial and commercial environments. Removable protection module for easy serviceability.
DTK-DRB-Series-Datasheet.pdf
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PoE Switches, Injectors and Extenders
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Gigabit PoE Switches, High-Power PoE+ Injector and Extenders
Save on installation time and money with DITEK’s PoE Switches, Injectors and Extenders by delivering data and power over existing network cables.
Ditek switches incorporate green Ethernet power-saving technology that deactivates unused ports and adjusts power levels based on the cable length. Rack mount models are equipped with an innovative LCD display on the front that provides real-time power information.
DITEK’s Injectors and Extenders eliminate the need to run AC power lines for your wireless access point, network camera or IP phone. Simply connect the PoE Injector to the LAN switch port, and use the existing infrastructure cabling to deliver DC power as well as transfer data. Increase an existing PoE connection beyond the 100 m (328 ft.) limit by installing one of our PoE Extenders.
DTK-PoE-Hot-Sheet.pdf
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Network Protection
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Network Protection overview
SDITEK’s NETS and EXTS Series of Products sets a new standard in surge protection for Ethernet, PoE and PoE Extender circuits.
- Variety of port counts
- Hybrid protection with Ethernet, PoE and PoE Extender support
- Easy to maintain “Rapid-Replacement” modules
- Ethernet support up to 10Gb
- Up to 20KA / pair protection
These products are ideal for installations where multiple cabling feeds require protection before entering network switches. When used in conjunction with our single-channel surge protectors at the equipment end of cable runs, users have a comprehensive network protection solution.
DTK-NETS-HS.pdf
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DTK-MRJ: Standalone Ethernet
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DTK-MRJPOES - Shielded Power over Ethernet Surge Protector
DITEK's single channel DTK-MRJPOES is designed with state-of-the-art circuitry to provide superior protection for Shielded 10GbE Power over Ethernet connections. This point of use surge protector can be installed at the equipment end, or ahead of injectors and midspan devices. When used with STP cable, the DTK-MRJPOES does not require a separate earth ground. For a complete solution pair with our rack and wall mount Network Series products for head end protection.
- Uses SAD and GDT technologies for superior protection
- Data speeds up to 10GbE without signal degradation
- PoE Plus, HiPoE ready for high-wattage applications
- FDOT APL Certification # 620-004-009
Shielded: DTK-MRJPOES-Datasheet.pdf
Unshielded: DTK-MRJPOE-Datasheet.pdf
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DTK-MRJETHS - Ethernet Surge Protector
DITEK's Single channel DTK-MRJETHS provides IP surge protection for shielded CAT5e, CAT6 and CAT6A data lines to vital business equipment such as data networks, POS terminals, ATMs and IP video cameras.
- Protects all four shielded data pairs
- Data speeds up to 10GbE without signal degradation
- Uses SAD and GDT technologies for optimal circuit protection
DTK-MRJETHS-Datasheet.pdf
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DTK-MRJETHS - PoE Extender Surge Protector
DITEK's single channel DTK-MRJEXTS is designed to be installed on the outputs of long-range PoE Extender devices, and features 10GbE throughput and shielded RJ45 connectors. This point of use surge protector is compatible with CAT5e, CAT6 and CAT6A cabling infrastructure, and when used with STP cabling, the MRJEXTS does not require a separate earth ground.
- Uses SAD and GDT technologies for optimal protection
- Data speeds up to 10GbE without signal degradation
- PoE Plus, HiPoE ready for high-wattage applications
- Shielded RJ45 connections with external grounding screw
DTK-MRJEXTS-Datasheet.pdf
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Standalone Ethernet with PoE outdoor
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DTK-MRJPOEX - PoE Surge Protector for Outdoor Applications
DITEK’s 10GbE outdoor rated DTK-MRJPOEX is designed specifically for PoE connections exposed to extreme weather conditions.
DITEK's single channel DTK-MRJPOEX is designed specifically for PoE connections exposed to extreme weather conditions. The NEMA 4X enclosure with liquid-tight cordgrips provide a watertight connection when installed in harsh/outdoor environments.
- Uses SAD and GDT technologies for superior protection
- Data speeds up to 10GbE without signal degradation
- NEMA 4X enclosure for outdoor applications
- PoE Plus, HiPoE ready for high-wattage applications
DTK-MRJPOEX-Datasheet.pdf
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DTK-WM: Wallmount Ethernet
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DTK-WM - Wall Mount 4/8 Channel Network Surge Protector 
The DTK-WMxNETS is a wall mount surge protector that uses state-of-the-art circuitry to provide best-in-breed surge protection for shielded Ethernet, PoE and optional PoE extender* circuits. It supports data speeds up to 10GbE, and provides surge protection grounding to remote devices when used with STP cabling. The DTK-WM* is ideal for smaller installations where Ethernet cabling feeds require protection before entering network switches.
Available with 4 or 8-Channels!
- Uses SAD and GDT technologies to provide optimal protection for shielded Ethernet, PoE, PoES and PoE extender circuits
- Rapid-replacement modular design allows modules to be swapped from front of device without removing from rack
- Robust 20kA per pair surge current capacity is the highest offered in a product designed for shielded network devices
- PoE Plus and HiPoE ready for high-wattage applications
- Optional modules available to support PoE Extender Circuits
DTK-WM4NETS-Datasheet.pdf
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DTK-PVP: Wallmount Ethernet + Power
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DTK-PVP - Combination Ethernet and 12/24/48V Power Surge Protector 
The DTK-PVP PoE surge protector is designed to protect PoE applications utilizing a copper/fiber composite cable infrastructure from electrical surges and spikes on the network cabling and power supply lines. It complies with IEEE Std. 802.3af and 802.3at for PoE, and offers shielded RJ45 connections with external grounding screw.
- Low-impedance video/data protection with full Gigabit Ethernet transmission speed
- Two pairs of power protection (12/24 & 48V) rated at 6 Amps per pair to power camera, plus heaters, blowers, defrosters or PTZ motors
- PoE Plus, HiPoE ready for high-wattage applications
48V: DTK-PVP56V-Datasheet.pdf
12/24V: DTK-PVPIPS-Datasheet.pdf
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DTK-RM: Rackmount Ethernet
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DTK-RM - Rack Mount Network Surge Protector 12 & 24 Channel
The DTK-RMxxNETS is a 12or 24-channel, upgradeable, 1U rack mount surge protector that uses state-of-the art circuitry to provide best-in-breed surge protection for shielded Ethernet, PoE and optional PoE extender circuits. The DTK-RM12NETS supports data speeds up to 10GbE, and provides surge protection grounding to remote devices when used with STP cabling. The DTK-RM12NETS is ideal for installations with multiple Ethernet cabling feeds that require protection before entering network switches. RMNETS
- Uses SAD and GDT technolofies to provide optimal protection for shielded Ethernet, PoE, PoES and PoE extender circuits
- Rapid-replacement modular design allows modules to be swapped from front of device without removing from rack
- Robust 20kA per pair surge current capacity is the highest offered in a product designed for shielded network devices
- PoE Plus and HiPoE ready for high-wattage applications
- Optional modules available to support PoE Extender Circuits
- Supports up to 24 modules in a single enclosure
12-port: DTK-RM12NETS-Datasheet.pdf
24-port: DTK-RM24NETS-Datasheet.pdf
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DTK-RM - Rack Mount PoE Extender Surge Protector
The DTK-RMxxEXTS is a 12or 24-channel, upgradeable, 1U rack mount surge protector designed specifically for PoE extender circuits. Using state-of-the art circuitry, provides best-in-breed surge protection for PoE extender circuits and optionally, Ethernet and PoE. The DTK-RMxxEXTS supports data speeds up to 10GbE, and provides surge protection grounding to remote devices when used with STP cabling. The Ditek extender is ideal for installations with multiple-port mid-span injectors and hybrid network scenarios.
- Uses SAD and GDT technologies to provide optimal protection for shielded PoE extender circuits
- Rapid-replacement modular design allows modules to be swapped from front of device without removing from rack
- Robust 20kA per pair surge current capacity is the highest offered in a product designed for shielded network devices
- Ready for high-wattage applications
- Optional modules available to support Ethernet and PoE
- Supports up to 24 modules in a single enclosure
DTK-RM12EXTS-Datasheet.pdf
DTK-RM24EXTS-Datasheet.pdf
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DTK-VSP: CoAX & Antenna Protection - Lightning Suppression
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CATV / CoAX Surge Protector
DITEK's DTK-VSPA video surge protector is recommended for applications where AC power is already protected. Ideal for CATV, broadband cable and digital satellite systems.
- F Type connectors to protect a variety of video devices
- Small footprint makes installation easy
- Grounding lug for easy termination
- 0Hz - 3 GHz frequency range
DTK-VSPA-Datasheet.pdf
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Coaxial RF Surge Protector for Wireless Communicators
Since antennas are external to the building, they become an avenue for damaging transient surges to enter your building and your equipment through the coaxial antenna cable. The DTK-VSPN surge protector with state-of-the-art circuit technology is ideal for protecting external antenna leads to cellular transmitters, bi-directional amplifiers (BDA) and distributed antenna systems (DAS).
- N type connectors protect a variety of coaxial devices
- Tightest clamping available provides superior protection
- Grounding lug for easy termination
- 0Hz - 4.75 GHz frequency range
DTK-VSPN-Datasheet.pdf
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Residential & Commercial AC Protection
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DIN Rail Surge Protective Device
The DTK-DR Series of DIN Rail surge protectors are designed to provide point-of-use protection for machine control panels and similar applications in commercial and industrial environments. The DTK-DR120P1 protects 120VAC single phase panels.
- Each model provides a 75,000 Amp/phase surge current rating to ensure powerful protection and a long service life
- Visual and remote end-of-life indicators enable proactive maintenance and the highest level of machine and system protection
- Compact, modular design for easy integration within machine control panels
- Approved for UL508 control panels
DTK-DR-Series-Datasheet.pdf
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120VAC Surge Protective Device with Load Removal
The DTK-120SLR surge protector guards 120VAC power circuits that feed fire alarm control panels, gate motors and other critical equipment. The load removal feature disconnects power to the equipment if compromised.
- Series-connected design for fast response and maximum protection
- Disconnects power to equipment if compromised
- For use on 120VAC single phase circuits up to 20 Amps
- UL1283 EMI/RFI noise filtering ensures clean power for connected equipment
- UL1449 Type 2 SPD
DTK-120SLR-Datasheet.pdf
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Series Connected Surge Protector with Dry Contacts and Audible Alarm
 Visual, audible, smart. DITEK's Deflector DTK-DF120S1 sets a new standard for 120VAC Power protection. Its patented design provides maximum critical load protection by minimizing AC supply voltage spikes and isolating incoming surges that originate from lightning or other sources.
- Audible alarm sounds when protection is compromised or protection module is removed
- Separate LED indicators for power, ground and protection status
- Rapid-Replacement modules for ease of installation (DTK-DF120M)
- Dry contacts for remote notification when service is required
- UL1449 Listed Type 2 SPD
- UL1283 EMI/RFI noise filtering ensures clean power to connected equipment
DTK-DF120S1-Datasheet.pdf
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Miscellaneous
AC Power plug
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Single Outlet 120VAC Surge Protective Device
DITEK's DTK-1F is a single outlet surge protector that provides AC power protection for alarm panel transformers and point of use appliances.
- Single AC outlet protects critical equipment
- Center screw secures to outlet and can also secure a connected transformer
- Diagnostic LED indicates AC power and SPD function
- UL1449 Listed Type 3 SPD
DTK-1F-Datasheet.pdf
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HVAC Surge Protection Kit
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HVAC Surge Protection Kit
DITEK's DTK-HVACKIT surge protection kit includes one DTK-120/240CM+ for HVAC condenser protection, and one DTK-4LVLPLV to protect thermostat control wires at air the handler.
- 120/240V single phase SPD with NEMA 4X enclosure - to be installed and wired to the load side of the disconnect
- 4-pair, 24V surge protector - to be installed in series with thermostat control wires at air handler
DTK-HVACKIT-Datasheet.pdf
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120VAC Surge Protective Device with Lockout Kit
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120VAC Surge Protective Device with Lockout Kit
The DTK-120HWLOK Surge Protective Device (SPD) with NFPA 72 2013 10.6.5.2 compatible lockout kit protects 120VAC equipment panels and dedicated branch circuits while preventing accidental alarm disconnect.
- Approved for 20A circuit breakers
- SCCR rating of 10kA complies with NEC Article 285.6
- NEMA 4X weatherproof enclosure allows for use in harsh environments
- Lockout kit prevents accidental disconnect of fire alarm system
- UL1449 Listed Type 1 SPD
- Diagnostic LED
DTK-120HWLOK-Datasheet.pdf
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Total Surge Solution for Fire Alarm Systems
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Total Surge Solution for Fire Alarm Systems 
Visual, audible, smart. The DTK-120X12 sets a new standard for 120VAC power and low voltage surge protection. It will protect your system power and up to twelve (12) pairs of SLC, IDC/PIV, NAC, network or dialer circuits. This combo unit comes equipped with a DTK-DF120M, 120VAC, replaceable surge protection module and a 6-position mounting base for replaceable, low voltage surge modules. Adding DITEK's 2MHLP/2MHTP modules for data/signal and dialer circuit protection provides a complete solution for your fire alarm system.
- 120VAC power surge protection with audible alarm and Form C dry contacts for remote monitoring of surge protection status
- 6-position mounting base for 2MHLP/2MHTP modules, protects up to (12) SLC, NAC, IDC, PIV, network or dialer circuits (modules must be ordered separately)
- Low voltage module cover ships blank to allow for application of installation company logo sticker
- Audible alarm can be silenced via the included time delay switch (24 hours)
- 3/4" NPT pre-drilled holes for AC power conduit
- (1) 3/4" NPT and (2) 1/2" NPT pre-drilled holes for low voltage wiring conduit
- UL1449 Listed Type 2 SPD
- UL1283 Listed EMI/RFI
DTK-120X12-Datasheet.pdf
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Data & Signaling Circuit Surge Protector with Snap-Track Base
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Data & Signaling Circuit Surge Protector with Snap-Track Base
The DTK-2MHLP12BWB provides surge protection for two 12V circuits in a field-replaceable module. Includes hardwired mounting base for easy installation.
- Protect two 12V pairs per module
- Multi-stage SAD technology provides the best possible protection
- Field-replaceable modules with hard-wired multi-base mounting system allows you to protect up to ten pairs with a common ground
DTK-2MHLPF-Series-Datasheet.pdf
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Data & Signaling Circuit Surge Protection Module
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Data & Signaling Circuit Surge Protection Module
The DTK-2MHLP24F provides surge protection with exclusive load removal technology for two 24V circuits. With required snap-track bases, protect up to 10 pairs with a common ground.
- Protects two 24V pairs per module
- Multi-stage SAD technology provides the best possible protection
- Field-replaceable modules with hard-wired multi-base mounting system allows you to protect up to ten pairs with a common ground
DTK-2MHLPF-Series-Datasheet.pdf
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Telco Surge Protection Module
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Telco Surge Protection Module
DITEK's DTK-2MHTP provides surge protection for two 130V telco circuits in a field-replaceable module with self-resetting fuse. With required snap-track bases, protect up to 10 pairs with a common ground.
- Protects two dialer circuits per module
- Hybrid design delivers high surge current capacity and reliable voltage clamping for peak protection
- Field-replaceable modular edge card connection with single point ground for fast installation
DTK-2MHTP-Datasheet.pdf
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120VAC Surge Protective Device
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120VAC Surge Protective Device
The DTK-120HW provides surge protection for 120VAC equipment panels and dedicated branch circuits. The compact, parallel-mount design allows for installation in a variety of locations.
- Approved for 20A circuit breakers
- SCCR rating of 10kA complies with NEC Article 285.6
- NEMA 4X weatherproof enclosure allows for use in harsh environments
- UL1449 Listed Type 1 SPD
- Diagnostic LED
DTK-HW-Series-Datasheet.pdf
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Alarm Panel Dialer Surge Protector
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Alarm Panel Dialer Surge Protector
The DTK-MRJ31XSCPWP is a modular surge protection device designed to protect fire and security system dialer circuits. This point of use surge protector can be easily installed in series with the circuit.
- Single pair RJ31X dialer circuit protection with patch cord
- Universal modular jack with external grounding screw
- Sneak Current Protection - SCP: 150mA self-resetting fuse protects against repeated surges
DTK-MRJ31XSCPWP-Datasheet.pdf
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Total Surge Solution for Fire Alarm Systems
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Total Surge Solution for Fire Alarm Systems
The DTK-TSS1 includes a DTK-120SRD for AC power surge protection with remote monitoring, and a 5-position hardwired base to add loop circuit protection. Installed in a NEMA 1 steel enclosure.
- Protects 120VAC power with dry contacts for remote monitoring of surge protection status
- Hard-wired base for 2MHLP/2MHLPB modules to protect up to 10 SLC, NAC, IDC and PIV circuit pairs (2MHLP modules sold separately)
- Space for expansion, protect up to 8 additional data/signal pairs by adding a DTK-4MB Base
DTK-TSS1-Datasheet.pdf
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Total Surge Solution for Fire Alarm Systems
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Total Surge Solution for Fire Alarm Systems
The DTK-TSS2 includes a DTK-120SRD for AC power surge protection with remote monitoring, and a 2-position hardwired base to add loop circuit protection.
- Protects 120VAC power with dry contacts for remote monitoring of surge protection status
- Hard-wired base for 2MHLP/2MHLPB modules to protect up to 4 SLC, NAC, IDC and PIV circuit pairs (2MHLP modules sold separately)
- Installed in a NEMA 4X enclosure
DTK-TSS2-Datasheet.pdf
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Total Surge Solution for Fire Alarm Systems
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Total Surge Solution for Fire Alarm Systems
The DTK-TSS2NM includes a DTK-120SRD for AC power surge protection with remote monitoring, and additional space to insert low voltage protection.
- Protects 120VAC power with dry contacts for remote monitoring of surge protection status
- Space available for inserting low voltage surge protection or additional monitoring modules
- Installed in a NEMA 4X enclosure
DTK-TSS2NM-Datasheet.pdf
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Outdoor Rated Fire Alarm Protection for Signaling & Notification
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Outdoor Rated Fire Alarm Protection for Signaling & Notification
The DTK-TSS3 includes a 2-position hardwired base to add surge protection for signaling and notification circuits.
- Hard-wired base for 2MHLP/2MHLPB modules to protect up to 4 SLC, NAC, IDC and PIV circuit pairs (2MHLP modules sold separately)
- Perfect solution for building-to-building notifier and communication runs
- Installed in a NEMA 4X enclosure
DTK-TSS3-Datasheet.pdf
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Series Connected Surge Protector with Dry Contacts
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Series Connected Surge Protector with Dry Contacts
The DTK-TSS4D includes a DTK-120SRD for AC power surge protection with remote monitoring.
- Protects 120VAC power with dry contacts for remote monitoring of surge protection status
- Series design for fast response and best protection
- Installed in a NEMA 4X enclosure
DTK-TSS4D-Datasheet.pdf
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Total Surge Solution for Fire Alarm Systems
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Total Surge Solution for Fire Alarm Systems
The DTK-TSS6 from DITEK pairs the DTK-120HW parallel connected AC power surge protector with our DTK-4MB, for protecting up to 8 pairs of fire alarm signaling loops.
- Protects 120VAC power in a NEMA 4X enclosure
- SCCR rating of 10kA complies with NEC Article 285.6
- Hard-wired base for 2MHLP/2MHLPB modules to protect up to (4) SLC, NAC, IDC and PIV circuit pairs. Modules sold separately
- Includes an NFPA 72 2013 10.6.5.2 compatible lockout kit to prevent accidental disconnect of the fire alarm system
DTK-TSS6-Datasheet.pdf
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120VAC Surge Protective Device with Dry Contacts
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120VAC Surge Protective Device with Dry Contact s
The DTK-120SRD surge protector guards 120VAC power circuits that feed industrial fire alarm panels, control panels and other critical equipment. The hybrid circuit design provides maximum critical load protection.
- Series-connected design for fast response and maximum protection
- Form C dry contact circuit for remote monitoring of surge protection status
- UL1283 EMI/RFI noise filtering ensures clean power for connected equipment
- UL1449 Recognized Type 2CA
DTK-120SRD-Datasheet.pdf
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Fire Alarm Panel SLC Surge Protector
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Fire Alarm Panel SLC Surge Protector
The DTK-2LVLPF protects 24V Signaling Line Circuits on fire alarm control panels, where surge protection and current limiting functionality are required.
- Protects up to 2 pairs of SLC circuits
- Low-current fusing prevents induced surges from damaging sensitive equipment. Maximum continuous current rated at 200mA
- Series connection, parallel function adds no resistance to loop circuits
- UL497B Listed
DTK-2LVLPF-Datasheet.pdf
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Fire Alarm System Surge Protection Kit
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Fire Alarm System Surge Protection Kit
The DTK-FPK2 fire surge protection kit includes one DTK-120SRD for AC power protection with remote monitoring, and two DTK-MRJ31XSCPWP's to protect dialer circuits.
- 120V AC power protection with 54,000A peak surge current rating
- EMI/FRI filtering and dry contacts for remote monitoring
- Protects dialer circuit against over-voltage and over-current events
DTK-FPK-Series-Datasheet.pdf
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