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MERSEN Fuse: Class H, RF Series, Fast-Acting, 50 A, 250 V AC - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN Fuse: Class H, RF Series, Fast-Acting, 50 A, 250 V AC

The MERSEN RF Series Fast-Acting Cylindrical Fuse (MPN RF50) is a Class H, 50 A, 250 V AC, non-indicating fuse. It is designed for fast-acting overcurrent protection in industrial electrical circuits.

SKU 3G-OTH-27363

Also listed as: RF 50 · RF-50

Brand
MERSEN
Item
Fuse: Class H, RF Series, Fast-Acting, 50 A, 250 V AC
Category
Fast-Acting Cylindrical Fuses
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MERSEN
Manufacturer Part Number
RF50
Series
RF

Technical Documents

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

Product Description

The MERSEN RF Series Fast-Acting Cylindrical Fuse (MPN RF50) is a Class H, 50 A, 250 V AC, non-indicating fuse. It is designed for fast-acting overcurrent protection in industrial electrical circuits.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MERSEN RF50 fuse used for?

The MERSEN RF50 is a Class H, fast-acting cylindrical fuse rated 50 A and 250 V AC. It provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and branch circuits, where rapid response to short circuits is required.

What are the specifications of the MERSEN RF50 fuse?

The MERSEN RF50 is a fast-acting, non-indicating fuse from the RF Series. It is rated 50 A at 250 V AC, Class H, with manufacturer part number RF50. It is designed for cylindrical fuse holders and provides reliable overcurrent protection in industrial applications.

Where to buy the MERSEN RF50 fuse worldwide?

You can source the MERSEN RF50 fuse 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 supply genuine MERSEN components for industrial overcurrent protection.

How to select the correct MERSEN RF50 fuse for an application?

To select the MERSEN RF50, verify your circuit voltage does not exceed 250 V AC and the continuous current is at or below 50 A. Ensure the fuse holder accepts Class H cylindrical fuses. For fast-acting protection, the RF50 clears faults quickly; always consult the equipment manual for proper fuse sizing.

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 fast-acting cylindrical 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 RF5 is a Class H, non-indicating, fast-acting cylindrical fuse rated 5 A and 250 V AC. It provides overcurrent protection in industrial electrical circuits, responding rapidly to short circuits. Suitable for branch circuit protection and equipment requiring quick fault interruption
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Class H fast-acting cylindrical fuse rated 20 A and 250 V AC. Non-indicating design for overcurrent protection in industrial electrical circuits, including motors, transformers, and control panels
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