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MERSEN Surge Protection Device: 120/240VAC Split, 1000V (L-L)/600V (L-N), 240/120 V - Residential Whole House External-Mount SPDs
MERSENResidential Whole House External-Mount SPDs

MERSEN Surge Protection Device: 120/240VAC Split, 1000V (L-L)/600V (L-N), 240/120 V

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…

SKU 3G-OTH-129774

Brand
MERSEN
Item
Surge Protection Device: 120/240VAC Split, 1000V
Category
Residential Whole House External-Mount SPDs
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Technical Specifications

MERSEN
Manufacturer Part Number
STLC240S025
Type
1000V (L-L)/600V (L-N), 240/120 V, 25 kA
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

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.

Frequently Asked Questions

What is the MERSEN STLC240S025 surge protection device used for?

The MERSEN STLC240S025 is a residential whole-house external-mount SPD designed to protect 120/240VAC split electrical systems from transient overvoltages. It is commonly installed at the service entrance to safeguard home wiring, appliances, and electronics against lightning strikes and utility switching surges.

What are the specifications of the MERSEN STLC240S025?

The MERSEN STLC240S025 is rated for 240/120 V with a maximum continuous operating voltage of 600V (L-N). It has a surge current capacity of 25 kA and includes an LED status indicator for operational monitoring. The unit is designed for 120/240VAC split systems and is manufactured by MERSEN.

Where to buy the MERSEN STLC240S025 worldwide?

You can source the MERSEN STLC240S025 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact our team for a quote and lead time; we supply this SPD to residential and commercial projects globally.

How to install the MERSEN STLC240S025 surge protector?

Install the MERSEN STLC240S025 externally at the main service panel, following local electrical codes. Mount the unit securely, connect line and neutral conductors to the appropriate terminals, and verify the LED indicator illuminates. Always de-energize the system before installation and consult a licensed electrician for compliance.

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 residential whole house external-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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