The Mersen STP230P05M is a Surge-Trap Pluggable Series Surge Protective Device (SPD) featuring Mersen’s TPMOV® technology. This DIN-rail mountable SPD eliminates the need for additional overcurrent protection, reducing panel space and wiring complexity. It includes a fail-safe self-protected design, a visual indicator for status monitoring, and a remote indicator for critical control circuitry. With a high short circuit current rating, it is ideal for industrial control panels. Designed for reliability and ease of installation, the STP230P05M is a no-fuse, failsafe surge suppressor built for harsh industrial environments.

The Mersen SP07U420 Surge-Trap Pluggable STP Series Surge Protective Device (SPD) is a no-fuse, failsafe surge suppressor featuring Mersen’s TPMOV® technology. This DIN-rail mountable SPD eliminates the need for additional overcurrent protection while providing a compact footprint. It includes a visual indicator and a remote indicator for status monitoring in critical control circuits. With a high short circuit current rating, the SP07U420 is designed for industrial control panels, ensuring reliable surge protection without compromising panel space. Manufactured by Mersen, this SPD is ideal for environments requiring robust and self-protected surge suppression.

The Mersen Surge-Trap Pluggable STP Series STP690Y05 is a surge protective device (SPD) designed for industrial control panels. It features Mersen's TPMOV® technology, providing a failsafe, no-fuse design that eliminates the need for additional overcurrent protection. This DIN-rail mountable SPD offers a visual indicator for status monitoring and a compact footprint. A remote indicator is included to signal critical control circuitry. Its high short circuit current rating makes it suitable for diverse industrial applications.

The Mersen Surge-Trap® STXH240S07 is a UL Type 1 Surge Protective Device (SPD) designed for 120/240VAC split-phase applications. This compact SPD features Mersen's TPMOV® technology, ensuring superior safety and reliability in its class. It is specifically suited for direct attachment to air conditioning disconnect switches and HVAC systems. The STXH series offers 3 modes of protection (L-N, L-L) and has a nominal discharge current rating of 20kA, with a surge capacity of 75kA per phase and mode. Its SCCR is 200kA. The device includes an LED status indicator (ON = Good, OFF = Replace) and is housed in a NEMA 4X enclosure for indoor or outdoor use. It fits 1/2" knockouts with 18" leads for straightforward installation. Compliant with ANSI/UL 1449 4th Edition and CSA C22.2.

The Mersen Surge-Trap STXH120P05 is a UL Type 1 listed Surge Protective Device (SPD) designed for 120/240VAC split-phase electrical systems. Fully compliant with UL1449 5th Edition, this device offers robust protection against transient voltage surges. It features Mersen's proprietary TPMOV® technology, ensuring superior safety and reliability in its class. The STXH120P05 boasts a compact design, making it ideal for direct attachment to air conditioning disconnect switches and integration into HVAC systems. With a nominal discharge current (In) of 20kA and a short circuit current rating (SCCR) of 50kA, it effectively safeguards sensitive equipment. The device operates on a nominal power frequency of 50 Hz or 60 Hz and has a response time of less than 1 nanosecond. Its NEMA 4X non-metallic enclosure provides environmental protection, and it operates within a temperature range of -40ºF to +185ºF (-40ºC to +85ºC). A visual LED status indicator clearly shows its functional status (Green = Functional / OUT = Replace). The STXH120P05 is equipped with a 1/2” – 14 threaded hub for mounting and comes pre-wired with 18" 10AWG leads. Manufacturer: Mersen. SKU: STXH120P05.

The Mersen Surge-Trap STXR Series STXR240P05A is a UL listed Type 1 Surge Protective Device (SPD). It meets UL1449 5th Edition standards and is designed as an effective replacement for older surge arrestor technologies. This series features Mersen's proprietary TPMOV® technology, contributing to its safety profile. The STXR series offers a compact design, allowing for flexible installation on either the line or load side. This makes it suitable for protecting branch panels and individual pieces of equipment from transient voltage surges.

The Mersen Surge-Trap® STXH120P05N is a Type 1 Surge Protective Device (SPD) designed for 120V single-phase split-phase applications. It features TPMOV® technology for enhanced safety and reliability. This compact SPD is UL1449 5th Edition compliant and offers a nominal discharge current (In) of 20kA with a short circuit current rating (SCCR) of 200kA. Its voltage protection rating (VPR) is 600V L-N. The STXH120P05N is ideal for direct attachment to air conditioning disconnect switches and HVAC systems, providing essential protection against voltage transients. It includes a visual status indicator (LED) and a 1/2"-14 threaded mounting hub for easy installation. Operating temperature range is -40°F to +185°F (-40°C to +85°C).

The Mersen Surge-Trap Type 1 STXT480S10 is a Type 1 Surge Protective Device (SPD) designed for comprehensive overvoltage protection. It features integrated EMI/RFI filtering and provides LED indication on each phase for status monitoring. Optional remote indication is available. This unit offers surge capacities of up to 200kA. At its core is Mersen's proprietary TPMOV® technology, ensuring the highest level of safety and eliminating the need for additional overcurrent protection. The STXT480S10 offers installation flexibility, suitable for both line and load side connections, making it ideal for applications from the service entrance down to distribution and branch panels. Manufactured in the US.

The Mersen Surge-Trap STXR Series STXR240P05 is a UL listed Type 1 Surge Protective Device (SPD). It is a key component of the STX series, designed to meet UL1449 5th Edition standards. This SPD is an effective replacement for older surge arrestor technologies. It features Mersen's proprietary TPMOV® technology, which enhances safety. The STXR series offers a compact design and installation flexibility, suitable for both line and load side connections. This makes it ideal for protecting branch panels and individual equipment from transient voltage surges.

The Mersen STXR240P05N is a UL 1449 5th Edition Type 1 surge protective device (SPD) with TPMOV® technology. Designed as a direct replacement for outdated surge arrestors, it provides compact, flexible protection for branch panels or individual equipment. This UL-listed device supports line or load installation and meets strict safety standards for industrial and commercial applications. The STXR series is built in the US by Mersen, a leader in electrical protection solutions.

Mersen 270TPMOVTS surge suppressor uses patented TPMOV® tech to eliminate common MOV failure modes. It combines voltage clamping with a disconnect mechanism that monitors the MOV disk, ensuring fail-safe operation by isolating the MOV via an arc shield during overvoltage. Visual pin indication and a normally open micro-switch enable remote status monitoring. TPMOV7 series delivers 50% more surge capacity (75kA 8/20μs peak) in the same footprint. Specs: 275VAC MCOV, 200kA SCCR, <1ns response time per phase, -40°C to +85°C operating range.

Mersen 420TPMOVTS TPMOV surge suppressor. Patented TPMOV technology prevents standard MOV failure. Features internal voltage clamping and status-monitoring disconnect. Fail-safe design with arc shield disconnects MOV on overvoltage. Visual pin indicator and normally open micro-switch for remote indication. TPMOV7 series offers 50% more surge capacity in same footprint. Rated 75kA - 8/20μs peak surge current. MCOV: 420VAC, VPR: 1500V, In: 20kA. Dimension A: 0.54 inches. SKU: 420TPMOVTS. Origin: US.