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MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug - Fuse Blocks for UL Class H & K Fuses
MERSENFuse Blocks for UL Class H & K Fuses

MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug

SKU 3G-OTH-129433

Brand
MERSEN
Item
Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug
Category
Fuse Blocks for UL Class H & K Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
21037
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a MERSEN fuse block used for?

A MERSEN fuse block securely holds UL Class H and K fuses in industrial control panels, motor circuits, and distribution boards. It provides reliable overcurrent protection and safe fuse replacement in manufacturing, HVAC, and power systems worldwide.

What are the specifications of the MERSEN 21037 fuse block?

The MERSEN 21037 is a 2-pole open block design rated for 250 V AC. It uses box lug terminals and is non-indicating. This fuse block accepts UL Class H and K fuses, making it suitable for general-purpose industrial overcurrent protection.

Where to buy MERSEN fuse blocks worldwide?

3G Electric supplies MERSEN fuse blocks like the 21037 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this open block design for UL Class H and K fuses.

How to install a MERSEN open block fuse block?

Mount the MERSEN 21037 on a DIN rail or panel using the integral slots. Connect line and load wires to the box lug terminals, torquing to manufacturer specifications. Insert the correct UL Class H or K fuse and verify polarity before energizing the circuit.

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 fuse blocks for ul class h & k fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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