Surge Protection

Mersen’s TPMOV technology eliminates common failure
modes that occur in the field with standard metal oxide varistors.
Internally each component is comprised of a voltage clamping device and
a disconnecting apparatus that monitors the status of the metal oxide
disc making the TPMOV surge suppression component a fail-safe device. Upon failure the TPMOV surge suppression component is
also equipped with a visual pin indicator as well as a normally open
micro-switch providing remote indication, if applicable. Mersen’s
25TPMOV series surge suppression component is rated for 25kA - 8/20μs peak surge current and is
available for maximum continuous operating voltages (MCOV) from
150V to 320VAC.

Surge-Trap® Monobloc Surge Protective Device (SPD) ST Series is a highly cost effective, no-fuse, fail-safe surge suppressor featuring Mersen’s TPMOV® technology inside – no need for additional overcurrent protection. All catalog numbers are UL 1449 5th Edition approved, DIN-rail mountable, with visual indicator and a small footprint. A remote indicator provides status for local or remote indication. A high short circuit current rating makes it suitable for most industrial control panels.