Mersen
Mersen USM2 Finger Safe Fuse Block 0-30A 800V AC/1000V DC
A finger-safe fuse block for midget fuses up to 30 A and 800 V AC/1000 V DC, DIN-rail mountable with 14–6 AWG pressure-plate terminals
- TypeFuses & Accessories
- ColorTransparent
- Finger-safe design prevents accidental contact with live parts
- 0-30 A range suits midget-class fuses up to 30 A
- 800 V AC and 1000 V DC ratings cover high-voltage circuits
- DIN-rail mounting enables quick panel installation
- Pressure-plate connectors accept 14 to 6 AWG wire
Fuse block for midget fuses
The Mersen USM2 is a two-pole fuse block rated for 0 to 30 A at 800 V AC and 1000 V DC. It accepts midget-class fuses measuring 1-1/2 in by 13/32 in and suits electrical panels that require finger-safe protection.
DIN-rail mounting with pressure-plate terminals
The polyamide body clips onto standard DIN rail and uses pressure-plate connectors for wire sizes from 14 to 6 AWG. This layout saves panel space and leaves room for adjacent devices without needing extra clearance.
Finger-safe design with non-indicating operation
The transparent cover shields live parts during normal use and the block runs without built-in indication. Power dissipation stays within the fuse rating, so no additional cooling is required in typical installations.
Highlights
- Finger-safe design prevents accidental contact with live parts
- 0-30 A range suits midget-class fuses up to 30 A
- 800 V AC and 1000 V DC ratings cover high-voltage circuits
- DIN-rail mounting enables quick panel installation
- Pressure-plate connectors accept 14 to 6 AWG wire
Specifications
| Brand | MERSEN |
|---|---|
| Type | Fuses & Accessories |
| Color | Transparent |
Questions about this item
What is the maximum continuous current this fuse block can carry without overheating?
The block is rated for 0 to 30 A, so sustained loads up to 30 amps are within its design limit.
How much heat does the polyamide body generate during all-day operation at full load?
The polyamide body and pressure-plate connectors are sized for the 30 A rating, keeping temperature rise within UL limits for continuous duty.
Which wire gauges must the installer have on hand to use the pressure-plate terminals?
The terminals accept solid or stranded copper from 14 to 6 AWG, so wire in that range is required for a proper connection.
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