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MERSEN Fuse Block: Finger-Safe, 4 Pole, 800 V AC, DIN Rail Mounting - Midget Fuse Blocks
MERSENMidget Fuse Blocks

MERSEN Fuse Block: Finger-Safe, 4 Pole, 800 V AC, DIN Rail Mounting

The MERSEN USM4 is a 4-pole, finger-safe midget fuse block rated for 800 V AC, with DIN rail mounting and pressure plate termination. 3G Electric interprets this demand and delivers it as part of our broad industrial…

SKU 3G-OTH-23076

Brand
MERSEN
Item
Fuse Block: Finger-Safe, 4 Pole, 800 V AC, DIN Rail Mounting
Category
Midget Fuse Blocks
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Technical Specifications

MERSEN
Manufacturer Part Number
USM4
Type
DIN Rail Mounting, Pressure Plate Termination
AC
800 V
Pole
4
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN USM4 is a 4-pole, finger-safe midget fuse block rated for 800 V AC, with DIN rail mounting and pressure plate termination. 3G Electric interprets this demand and delivers it as part of our broad industrial supply across 14 departments, with specialist depth in electrical components from brands like MERSEN, Schneider, and ABB.

Frequently Asked Questions

What is the MERSEN USM4 fuse block used for?

The MERSEN USM4 is a finger-safe, 4-pole midget fuse block used in industrial control panels and power distribution systems. It mounts on DIN rail and accepts pressure plate termination for secure wiring. Typical applications include motor control centers, HVAC equipment, and machinery requiring 800 V AC protection.

What are the specifications of the MERSEN USM4 fuse block?

The MERSEN USM4 is a 4-pole, finger-safe midget fuse block rated for 800 V AC. It features DIN rail mounting and pressure plate termination. The manufacturer part number is USM4. This block is designed for use with 13/32 x 1-1/2 inch midget fuses and provides touch-safe protection per IEC standards.

Where to buy the MERSEN USM4 fuse block worldwide?

3G Electric supplies the MERSEN USM4 fuse block worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time. We source genuine MERSEN components for industrial applications.

How to install the MERSEN USM4 fuse block on DIN rail?

To install the MERSEN USM4, snap the block onto a standard 35 mm DIN rail until it locks. Use pressure plate termination to secure wires: strip 8-10 mm of insulation, insert conductor, and tighten the screw. Ensure the fuse is inserted only after mounting. Follow local electrical codes for safe installation.

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 midget fuse blocks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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