Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug - Fuse Blocks for UL Class RK1 & RK5 Fuses
MERSENFuse Blocks for UL Class RK1 & RK5 Fuses

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

SKU 3G-OTH-25097

Brand
MERSEN
Item
Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug
Category
Fuse Blocks for UL Class RK1 & RK5 Fuses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

MERSEN
Manufacturer Part Number
20307R
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Frequently Asked Questions

What is the MERSEN 20307R fuse block used for?

The MERSEN 20307R fuse block is used to safely mount and connect UL Class RK1 and RK5 fuses in industrial control panels, motor circuits, and power distribution systems. Its open block design with 2 poles and box lug terminals supports 250 V AC applications, providing reliable overcurrent protection in manufacturing, HVAC, and process equipment.

What are the specifications of the MERSEN 20307R fuse block?

The MERSEN 20307R is a 2-pole, open block design fuse block rated for 250 V AC. It accepts UL Class RK1 and RK5 fuses and features box lug terminals for secure wiring. The non-indicating design means no blown-fuse indicator is included. This model is manufactured by MERSEN under part number 20307R.

Where to buy the MERSEN 20307R fuse block worldwide?

3G Electric supplies the MERSEN 20307R fuse block worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this MERSEN fuse block to support your industrial power distribution needs.

How to install the MERSEN 20307R fuse block?

To install the MERSEN 20307R fuse block, mount it on a DIN rail or panel using the provided slots. Connect incoming and outgoing wires to the box lug terminals, torquing to manufacturer specifications. Insert UL Class RK1 or RK5 fuses into the 2-pole holder. Always disconnect power 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 rk1 & rk5 fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20356R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20356R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20306R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20306R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20358R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20358R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20308R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20308R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20606R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20606R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Pressure Plate, Non-Indicating (MPN 20328R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 3 Pole, 250 V AC, Pressure Plate, Non-Indicating (MPN 20328R). Key specifications — Brand: MERSEN.

More from MERSEN

View all MERSEN parts →
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Pressure Plate, Non-Indicating (MPN 20326R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 250 V AC, Pressure Plate, Non-Indicating (MPN 20326R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 1 Pole, 600 V AC, Pressure Plate, Non-Indicating (MPN 60326R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 600 V AC, Pressure Plate, Non-Indicating (MPN 60326R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Pressure Plate, Non-Indicating (MPN 20327R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Pressure Plate, Non-Indicating (MPN 20327R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 2 Pole, 600 V AC, Box Lug, Non-Indicating (MPN 60307R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 2 Pole, 600 V AC, Box Lug, Non-Indicating (MPN 60307R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20607R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 2 Pole, 250 V AC, Box Lug, Non-Indicating (MPN 20607R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 3 Pole, 600 V AC, Pressure Plate, Non-Indicating (MPN 60328R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 3 Pole, 600 V AC, Pressure Plate, Non-Indicating (MPN 60328R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 1 Pole, 600 V AC, Box Lug, Non-Indicating (MPN 61036R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 1 Pole, 600 V AC, Box Lug, Non-Indicating (MPN 61036R). Key specifications — Brand: MERSEN.
MERSEN Fuse Block: Open Block Design, 3 Pole, 600 V AC, Box Lug, Non-Indicating (MPN 61038R). Key specifications — Brand: MERSEN.
MERSEN
MERSEN Fuse Block: Open Block Design, 3 Pole, 600 V AC, Box Lug, Non-Indicating (MPN 61038R). Key specifications — Brand: MERSEN.