Browse Surge Protection
Mersen (formerly Ferraz Shawmut) surge protection distributed by Gross Automation. Select a product below for specifications, datasheets, and ordering information.
Mersen surge protection devices protect electrical systems from transient overvoltages caused by lightning and switching. Product families include the Surge-Trap line of DIN rail and panel mount SPDs in Type 1 and Type 2 configurations.
17 Products in Surge Protection
A4BY Series / Class L / 4-Second Time Delay
Count on the high interrupting rating of our most widely-used Class L fuse - When it comes to protecting service entrance equipment, feeder circuits, and circuit breakers, A4BY fuses have been the industry's favorite. The A4BY is a 100% rated device and may be applied at continuous currents up to its ampere rating. A 4-second minimum time delay at 500% rating allows the A4BY to pass normal current surges and to coordinate with ground fault relays.
Surge Related Devices / MOV Protection Fuses
Ferraz Shawmut's complete family of surge suppression devices includes our VSP MOV fuse, our TPMOV thermally protected MOV fuse, and Surge Trap, our new modular, DIN-rail mounted transient-voltage surge suppressor.
Surge-Trap® Surge Protective Device
Surge-Trap® Surge Protective Device is a no-fuse surge suppressor. The Surge-Trap is a UL 1449 Third Edition compliant surge protective device with a modular thermally protected transient voltage surge suppressor. It is DIN-rail mountable featuring a fail-safe self-protected design, visual indicator and a small foot print. A remote indicator option provides status to critical control circuit. The Surge-Trap provides an interrupting rating and a Thermally Protected MOV without additional protection devices.
Surge-Trap® Modular SPD
Surge-Trap® Surge Protective Device is a no-fuse surge suppressor. The Surge-Trap is a UL 1449 Third Edition compliant surge protective device with a modular thermally protected transient voltage surge suppressor. It is DIN-rail mountable featuring a fail-safe self-protected design, visual indicator and a small foot print. A remote indicator option provides status to critical control circuit. The Surge-Trap provides an interrupting rating and a Thermally Protected MOV without additional protection devices.
Surge Rated Fuses - VSP
Ferraz Shawmut surge suppression fuses are specially designed to address the protection of TVSS systems. The surge suppression fuses have been specially designed to withstand 8x20 MicroSec surge pulses without opening, allowing the TVSS system to react to the surge. All surge suppression fuses have a 8x20 MicroSec surge rating, not a continuous current rating. Under AC short circuit conditions these surge suppression fuses are very current limiting.
Surge Rated Fuses - VSP
Ferraz Shawmut surge suppression fuses are specially designed to address the protection of TVSS systems. The surge suppression fuses have been specially designed to withstand 8x20 MicroSec surge pulses without opening, allowing the TVSS system to react to the surge. All surge suppression fuses have a 8x20 MicroSec surge rating, not a continuous current rating. Under AC short circuit conditions these surge suppression fuses are very current limiting.
Surge Trap-Din Rail TVSS
Din Rail TVSS (Thermally Protected) - The Surge-Trap allows direct connection with the DIN-rail mount option. Featuring individual mode visual and remote indicators, providing status to critical control circuit. The Surge-Trap provides an Interrupting Rating and a Thermally Protected MOV without additional protection devices.
Surge Trap-Din Rail TVSS
Din Rail TVSS (Thermally Protected) - The Surge-Trap allows direct connection with the DIN-rail mount option. Featuring individual mode visual and remote indicators, providing status to critical control circuit. The Surge-Trap provides an Interrupting Rating and a Thermally Protected MOV without additional protection devices.
Surge Protective Devices / Surge-Trap Surge Protective Device w/ TPMOV Technology
Surge-Trap ® Surge Protective Device is a no-fuse surge suppressor. The Surge-Trap is a UL 1449 Third Edition compliant surge protective device with a modular thermally protected transient voltage surge suppressor.
Surge-Trap® SPD Type 1 XP Series
The Surge-Trap® Type 1 XP Series offers advanced performance over other products. The XP meets requirements for UL1449 Third Edition and has been designed to be as compact as possible while offering advanced protection. The XP features TPMOV® technology inside making it the safest product available. Installation can be done on the line or load side of a panel. The XP is the perfect fit from service entrance all the way down to an important machine specific control panel.
Surge-Trap® SPD Type 1 XR Series
The Surge-Trap® Type 1 XR Series meets requirements for UL1449 Third Edition and is ideal for the replacement of obsolete surge arrestors. The XR Series SPD feature TPMOV® technology inside making them the safest product available. With a small, compact design and line or load installation flexibility the XR series is the perfect fit from service entrance all the way down to a specific control panel.
Surge-Trap® SPD Type 1 XT Series
The Surge-Trap® Type 1 XT Series offers Advanced Technology. It utilizes large block 50kA Thermally Protected MOV’s. With line or load side installation flexibility, this unit is a great fit from the service entrance all the way down to eac h distribution and/or branch panel.
Surge-Trap Type 1 SPD
Essential Type 1 SPD for indoor applications. Ferraz Shawmut’s Surge-Trap® Type 1 SPD is a fail-safe and economical solution to applications that require a NEMA-style SPD. It is UL 1449 3rd edition approved and offers a wide range of voltage configurations to meet all needs in its class. The Surge-Trap Type 1 SPD features Ferraz Shawmut’s patented TPMOV® technology eliminating the need for additional overcurrent protection, thus providing substantial cost savings.
Thermally Protected MOV (TPMOV)
The Ferraz Shawmut Thermally Protected MOV has been developed to assist in minimizing the failure characteristics of Metal-Oxide-Varistors. The TPMOV is a completely fail-safe device.
Thermally Protected MOV (TPMOV)
The Ferraz Shawmut Thermally Protected MOV has been developed to assist in minimizing the failure characteristics of Metal-Oxide-Varistors. The TPMOV is a completely fail-safe device.
Surge Related Devices / TPMOV
Ferraz Shawmut's complete family of surge suppression devices includes our VSP MOV fuse, our TPMOV thermally protected MOV fuse, and Surge Trap, our new modular, DIN-rail mounted transient-voltage surge suppressor.
Surge Related Devices / TVSS
Surge-Trap ® Surge Protective Device is a no-fuse surge suppressor. The Surge-Trap is a UL 1449 Third Edition compliant surge protective device with a modular thermally protected transient voltage surge suppressor.