Mersen 3G-OTH-129774 — Technical Specifications

Name: Mersen 3G-OTH-129774 MERSEN Surge Protection Device: 120/240VAC Split, 1000V (L-L)/600V (L-N), 240/120 V, 25 kA (MPN STLC240S025). Key specifications — attr196152: 120/240VAC Split; attr196164: LED Status Indicator; attr196159: 240/120 V; attr196160: 600V (L-N); attr196172: 25 kA; attr211145: MERSEN.
Brand: Mersen

The MERSEN STLC240S025 is a residential whole-house external-mount surge protection device (SPD) for 120/240VAC split systems. It is rated for 240/120 V, with a maximum continuous operating voltage of 600V (L-N) and a surge current capacity of 25 kA. The unit includes an LED status indicator for operational monitoring.

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Technical Specifications

Parameter	Value
Type	1000V (L-L)/600V (L-N), 240/120 V, 25 kA
Manufacturer Part Number	STLC240S025