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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

MERSEN Fuse Blocks for UL Class H & K Fuses.

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

Technical Documents

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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

MERSEN Fuse Blocks for UL Class H & K Fuses.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 21036)
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MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 21036)
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 21038)
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MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 21038)
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20607)
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MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20607)
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 22001)
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MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 22001)
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20656)
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MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20656)
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 24001)
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MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 24001)

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This MERSEN fuse block is a 1-pole, open block design rated for 600 V AC. It accepts UL Class H and K fuses and uses screw-type terminals. The non-indicating block is suited for mounting and connecting fuses in industrial electrical circuits such as panel boards and motor control centers
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This MERSEN fuse block is a 1-pole, open block design rated for 600 V AC. It accepts UL Class H and K fuses and uses screw-type terminals. The non-indicating block is suited for mounting and connecting fuses in industrial electrical circuits such as panel boards and motor control centers
This MERSEN fuse block is a 3-pole, open block design rated for 250 V AC. It features box lug terminals and is non-indicating. Designed to accept UL Class H and K fuses, it is used in panel boards, motor control centers, and distribution equipment for overcurrent protection
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This MERSEN fuse block is a 3-pole, open block design rated for 250 V AC. It features box lug terminals and is non-indicating. Designed to accept UL Class H and K fuses, it is used in panel boards, motor control centers, and distribution equipment for overcurrent protection
This MERSEN fuse block is a 1-pole, open-block design rated for 600 V AC. It features box lug terminals and a non-indicating design. Suitable for mounting and connecting UL Class H and K fuses in industrial electrical circuits such as panel boards and motor control centers
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This MERSEN fuse block is a 1-pole, open-block design rated for 600 V AC. It features box lug terminals and a non-indicating design. Suitable for mounting and connecting UL Class H and K fuses in industrial electrical circuits such as panel boards and motor control centers
This 3-pole fuse block is designed for UL Class H and K fuses, rated at 250 V AC. It features an open block design with screw-type terminals for secure connections. Suitable for use in panel boards, motor control centers, and distribution equipment requiring overcurrent protection
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This 3-pole fuse block is designed for UL Class H and K fuses, rated at 250 V AC. It features an open block design with screw-type terminals for secure connections. Suitable for use in panel boards, motor control centers, and distribution equipment requiring overcurrent protection
The MERSEN 61038 is a 3-pole, open-block design fuse block rated for 600 V AC. It features box lug terminals and is non-indicating. Designed for UL Class H and K fuses, it is used in industrial electrical panels, motor control centers, and distribution boards for overcurrent protection
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The MERSEN 61038 is a 3-pole, open-block design fuse block rated for 600 V AC. It features box lug terminals and is non-indicating. Designed for UL Class H and K fuses, it is used in industrial electrical panels, motor control centers, and distribution boards for overcurrent protection
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Open block design fuse block for UL Class H and K fuses. Rated 600 V AC, 2 poles, with pressure plate terminals for secure wire connections. Non-indicating type. Suitable for use in motor control centers, panelboards, and distribution equipment requiring overcurrent protection
Single-pole open-block fuse holder for UL Class H and K fuses. Rated 600 V AC with box lug terminals for secure wire connections. Non-indicating design without blown-fuse indicator. Used in power distribution and motor control circuits
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