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MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Screw - Fuse Blocks for UL Class H & K Fuses
MERSENFuse Blocks for UL Class H & K Fuses

MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Screw

SKU 3G-OTH-129383

Brand
MERSEN
Item
Fuse Block: Open Block Design, 1 Pole, 250 V AC, Screw
Category
Fuse Blocks for UL Class H & K Fuses
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Technical Specifications

MERSEN
Manufacturer Part Number
20311
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the MERSEN 20311 fuse block used for?

The MERSEN 20311 fuse block is used to safely mount and connect UL Class H and K cartridge fuses in industrial control panels, distribution boards, and motor circuits. It provides a single-pole, open-block design for 250 V AC applications, enabling easy fuse replacement and reliable circuit protection in manufacturing and power distribution environments.

What are the specifications of the MERSEN 20311 fuse block?

The MERSEN 20311 is a 1-pole, open-block fuse block rated for 250 V AC. It uses screw-type terminals and is designed for UL Class H and K fuses. The manufacturer part number is 20311, and it is a non-indicating model. This block is suitable for industrial fuse mounting where visual indication of fuse status is not required.

Where to buy the MERSEN 20311 fuse block worldwide?

You can source the MERSEN 20311 fuse block through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable supply for this MERSEN fuse block.

How to install the MERSEN 20311 fuse block?

To install the MERSEN 20311 fuse block, mount it securely on a DIN rail or panel using the provided slots. Connect incoming and outgoing conductors to the screw terminals, ensuring proper torque per manufacturer guidelines. Insert the correct UL Class H or K fuse into the open block. 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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