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MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L - DIN Rail Internal-Mount SPDs

MERSENDIN Rail Internal-Mount SPDs

MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L

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…

SKU 3G-OTH-22738

Brand

MERSEN

Item

Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L

Category

DIN Rail Internal-Mount SPDs

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Technical Specifications

MERSEN

Manufacturer Part Number

STP240D07 

Type

L-G/L-L 

AC

275/550 V 

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

Voltage Protection Rating

900V (L-G) 

Short Circuit Current Rating

200kA 

Max. Continuing Operating Voltage

275/550 V AC 

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MERSEN Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

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.

Used in

Common applications for MERSEN

Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.

Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.

Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.

Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.

DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.

High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

MERSEN Products

3G Electric supplies MERSEN din rail internal-mount spds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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