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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-129369

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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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MERSEN
Manufacturer Part Number
20307

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 equipment. It provides a safe, reliable connection for overcurrent protection up to 250 V AC, ensuring compliance with electrical safety standards in manufacturing and process plants.

What are the specifications of the MERSEN 20307 fuse block?

The MERSEN 20307 is a 2-pole, open-block design fuse block rated for 250 V AC. It uses box lug terminals for secure wire connections and is non-indicating. This block accepts UL Class H and K fuses, making it suitable for general-purpose overcurrent protection in industrial electrical systems.

Where to buy MERSEN fuse blocks worldwide?

3G Electric supplies MERSEN fuse blocks like the 20307 to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this or any MERSEN electrical component.

How to install a MERSEN open-block fuse block?

Mount the MERSEN fuse block 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 into each pole. Always de-energize the circuit before installation and follow local electrical codes.

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
The MERSEN 20357 is a 2-pole open block design fuse block rated for 250 V AC. It features box lug terminals and is non-indicating. This block accepts UL Class H and K fuses. Typical applications include panel boards, motor control centers, and distribution equipment
MERSEN
The MERSEN 20357 is a 2-pole open block design fuse block rated for 250 V AC. It features box lug terminals and is non-indicating. This block accepts UL Class H and K fuses. Typical applications include panel boards, motor control centers, and distribution equipment
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20302)
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MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20302)
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20607)
MERSEN
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20607)
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
MERSEN
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
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20356)
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20356)
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20358)
MERSEN
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20358)

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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 is non-indicating. Designed to accept UL Class H and K fuses, it is used for overcurrent protection in panel boards, motor control centers, and distribution equipment
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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 is non-indicating. Designed to accept UL Class H and K fuses, it is used for overcurrent protection in panel boards, motor control centers, and distribution equipment
The MERSEN 20303 is a 3-pole fuse block with an open block design, rated for 250 V AC. It accepts UL Class H and K fuses and features box lug terminals. This non-indicating block is used for mounting and connecting fuses in industrial electrical circuits such as panel boards and motor control centers
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The MERSEN 20303 is a 3-pole fuse block with an open block design, rated for 250 V AC. It accepts UL Class H and K fuses and features box lug terminals. This non-indicating block is used for mounting and connecting 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 600 V AC. It features an open block design with box lug terminals for secure wire connections. The non-indicating type does not include a blown-fuse indicator. Suitable for use in industrial power distribution, motor control centers, and panelboards
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This 3-pole fuse block is designed for UL Class H and K fuses, rated 600 V AC. It features an open block design with box lug terminals for secure wire connections. The non-indicating type does not include a blown-fuse indicator. Suitable for use in industrial power distribution, motor control centers, and panelboards
This MERSEN fuse block is a 1-pole, open block design rated for 250 V AC. It accepts UL Class H and K fuses and features box-lug terminals. The non-indicating block is used in panel boards, motor control centers, and distribution equipment for overcurrent protection
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This MERSEN fuse block is a 1-pole, open block design rated for 250 V AC. It accepts UL Class H and K fuses and features box-lug terminals. The non-indicating block is used in panel boards, motor control centers, and distribution equipment for overcurrent protection
This MERSEN fuse block is designed for mounting and connecting UL Class H and K fuses in industrial electrical circuits. It features an open-block, 2-pole configuration rated for 600 V AC, with box lug terminals and a non-indicating design. Commonly used in motor control centers, panelboards, and distribution equipment
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This MERSEN fuse block is designed for mounting and connecting UL Class H and K fuses in industrial electrical circuits. It features an open-block, 2-pole configuration rated for 600 V AC, with box lug terminals and a non-indicating design. Commonly used in motor control centers, panelboards, and distribution equipment
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 features box lug terminals. The non-indicating block is used to safely mount and connect 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 features box lug terminals. The non-indicating block is used to safely mount and connect fuses in industrial electrical circuits such as panel boards and motor control centers
This 3-pole fuse block is designed for mounting UL Class H and K fuses in industrial electrical circuits. Rated for 250 V AC, it features an open block design with box lug terminals for secure connections. Suitable for use in motor control centers, panel boards, and distribution equipment requiring overcurrent protection
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This 3-pole fuse block is designed for mounting UL Class H and K fuses in industrial electrical circuits. Rated for 250 V AC, it features an open block design with box lug terminals for secure connections. Suitable for use in motor control centers, panel boards, and distribution equipment requiring overcurrent protection
This MERSEN fuse block is a 1-pole, open block design rated for 250 V AC. It accepts UL Class H and K fuses and features a box lug terminal for secure wire connections. The non-indicating design is suited for overcurrent protection in panel boards, switchgear, and control cabinets
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This MERSEN fuse block is a 1-pole, open block design rated for 250 V AC. It accepts UL Class H and K fuses and features a box lug terminal for secure wire connections. The non-indicating design is suited for overcurrent protection in panel boards, switchgear, and control cabinets