Mersen 3G-OTH-22738 — Technical Specifications

Name: Mersen 3G-OTH-22738 MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 275/550 V AC (MPN STP240D07). Key specifications — Voltage: 240V AC Delta; Number of Wires: 4 Wires; Modes of Protection: L-L; Max. Continuing Operating Voltage: 275/550 V AC; Voltage Protection Rating: 900V (L-G); Short Circuit Current Rating: 200kA; Filtering: No; Enclosure Material: Polyethylene Terephthalate.
Brand: Mersen

The MERSEN STP240D07 is a three-phase, DIN-rail internal-mount surge protective device (SPD) for 240V AC Delta systems with 4 wires and 3 poles. It provides L-L mode protection, a voltage protection rating of 900V (L-G), a short-circuit current rating of 200kA, and a maximum continuous operating voltage of 275/550 V AC. The unit features a polyethylene terephthalate enclosure and no filtering.

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Technical Specifications

Parameter	Value
AC	275/550 V
Type	L-G/L-L
Brand	MERSEN
Poles	3
Wires	4
Voltage	240V AC Delta
AC Delta	240V
Filtering	No
Mounting Style	DIN-Rail
Number Of Wires	4 Wires
Enclosure Material	Polyethylene Terephthalate
Modes Of Protection	L-L
Manufacturer Part Number	STP240D07
Voltage Protection Rating	900V (L-G)
Short Circuit Current Rating	200kA
Max. Continuing Operating Voltage	275/550 V AC