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Surge protective devices (SPDs) protect power, control, PLC I/O, data, and signaling equipment from transient voltage spikes and surges. Type 1 to Type 4 SPDs are available in various mounting styles, 1- or 3-phase, up to 4/4X NEMA ratings, and up to 600 VAC and 20 kA nominal discharge current.
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Surge Protection Devices
Surge protection devices (SPDs) protect electrical and electronic equipment from damage caused by voltage spikes. SPDs are available in a wide range of types, including:
- Type 1 SPDs are installed at the power supply point of entry into a building or structure and are designed to protect against the highest levels of overvoltage
- Type 2 SPDs are installed downstream of Type 1 SPDs and protect against lower levels of overvoltage
- Type 3 SPDs are installed at the individual outlets of a building or structure and protect against the lowest levels of overvoltage
- Type 4 SPDs are installed near sensitive electronic equipment and provide additional protection against overvoltage
For part listing and specifications, go to Shop Now
DEHN EZ50 Surge Protectors for Challenging Outdoor Applications
New!
Dehn EZ50-S surge protectors provide efficient protection for challenging outdoor conditions and ensure uninterrupted performance and system uptime. These surge protectors are ideal for applications such as electric vehicles, water/wastewater facilities, data centers, mobile phone sites, and many more commercial/industrial environments.
- UL 1449 Type 1
- Prewired with 10 AWG, 36" stranded wires
- 50kA lMAX and a 200kA SCCR surge protection with per line visual indication
- Field-replaceable (hot swappable) plug-in modules
- NEMA 4X enclosure includes panel/wall mount brackets
- Assembled in USA from foreign and domestic materials
Starting at
(908171)
DEHN Red/Line Modular DIN-Rail Surge Protectors for Power Applications
DEHNguard surge protectors provide reliable surge protection for a high degree of equipment safety. Dehn DG-MU series modular DIN-rail mount devices are suitable for common electrical power (complete) system configurations up to 600Y/347 VAC; replacement protection modules are available.
- UL Type 1 for power applications
- Internally pre-connected for system topology
- No additional overcurrent protection devices needed
Starting at
(908090)
DEHN UL Type 4 Surge Protectors for Power and Control Applications
The compact DEHNrail UL1449 Type 4 supplemental surge protection devices for power and controls applications offer modularity and high performance. DR-M-2P series surge arresters provide protection up to 230 VAC, ideal for equipment in industrial environments; replacement protection modules are available.
- Two-pole surge arrester consisting of a base part and a plug-in protection module
- High discharge capacity due to heavy-duty zinc oxide varistor/spark gap combination
- Narrow (modular) design according to DIN 43880
Starting at
(953202)
DEHN Yellow/Line Data and Signal Protection for Hazardous Areas
DEHNpipe DPI series surge arresters for field devices are made of corrosion-resistant stainless steel and connect directly to the device terminals. These units are ideally suited for installation in process environments.
- Parallel-connection models offer SPD class Type 2 protection, for potentially explosive atmospheres or Class 1 Div 2 environments per CSA only
- Arrester for protecting a second interface (data or power side) available
- IP67 protection rating
Starting at
(929963)
DEHN Yellow/Line Surge Protectors for Ethernet Protection
DEHNpatch DPA series surge arresters are ideal for Ethernet, Industrial Ethernet, and Power over Ethernet devices, as well as general applications in structured cabling up to the Gbit range. Available are a space-saving DIN-rail mounted model and a NEMA 4/4X-rated unit that can be pole or wall-mounted.
- Cat. 6 according to ISO / IEC 11801
- CAT 6A in the channel according to ANSI / TIA / EIA-568
- Power over Ethernet IEEE 802.3 compliant (up to PoE++ / 4PPoE)
- IP66 model for outdoor applications
Starting at
(929121)
DEHN Yellow/Line BLITZDUCTORconnect Series Compact Data and Signal Surge Protectors
Dehn BLITZDUCTORconnect series combined lightning current and surge arresters feature a modular, compact design for system protection in industrial environments, information technology signal interfaces, and automation or measuring and control systems. The LifeCheck monitoring function helps ensure the arrester is able to protect equipment from lightning strikes and surges.
- Modules available to protect 120 VAC, 24 VAC/VDC, and 4-20 mA circuits, and communication circuits
- Universal lightning current and surge arrester
- Slim stackable slice-type design
- High discharge capacity of 3kA (10/350 µs), 10 kA (8/20 µs)
- Visual status indication
- Low voltage protection level, also capable of protecting terminal equipment
- Condition monitoring unit available for monitoring BLITZDUCTORconnect arresters with LifeCheck
Starting at
(927910)
Mersen STXR Series Surge-Trap® Surge Protective Devices for Power Applications
Surge-Trap Type 1 STXR series devices meet requirements for UL1449 Fourth Edition and are ideal for the replacement of obsolete surge arrestors. The TPMOV® technology inside the STXR series provides the highest level of safe operation.
- In 120 VAC to 600 VAC ratings
- Compact design and line or load installation flexibility
- NEMA 4X enclosure for outdoor or indoor use
- For use in ANSI/UL Type 1 or 2 SPD installations
Starting at
(STXR120P05)
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