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MERSEN Fuse: Class H, RF Series, Fast-Acting, 20 A, 250 V AC - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN Fuse: Class H, RF Series, Fast-Acting, 20 A, 250 V AC

The MERSEN RF Series Fast-Acting Cylindrical Fuse (MPN RF20) is a Class H, 20 A, 250 V AC, non-indicating fuse. This fast-acting fuse is designed for overcurrent protection in industrial electrical circuits.

SKU 3G-OTH-27467

Also listed as: RF 20 · RF-20

Brand
MERSEN
Item
Fuse: Class H, RF Series, Fast-Acting, 20 A, 250 V AC
Category
Fast-Acting Cylindrical 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
RF20
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 RF20) is a Class H, 20 A, 250 V AC, non-indicating fuse. This fast-acting fuse is designed for overcurrent protection in industrial electrical circuits.

Frequently Asked Questions

What is the MERSEN RF20 fuse used for?

The MERSEN RF20 is a Class H, fast-acting cylindrical fuse rated 20 A and 250 V AC. It provides overcurrent protection in industrial electrical circuits, safeguarding equipment like motors, transformers, and control panels from short circuits and overloads.

What are the specifications of the MERSEN RF20 fuse?

The MERSEN RF20 is a fast-acting, non-indicating fuse from the RF Series. It is rated 20 A, 250 V AC, and meets Class H standards. The manufacturer part number is RF20. It is designed for cylindrical fuse holders in industrial applications.

Where to buy the MERSEN RF20 fuse worldwide?

3G Electric supplies the MERSEN RF20 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this fuse for your project.

How to select the correct MERSEN RF20 fuse for a circuit?

To select the MERSEN RF20, verify your circuit's voltage (250 V AC max) and current (20 A). Ensure the fuse is fast-acting for sensitive electronics. Check the holder accepts Class H cylindrical fuses. Always consult a qualified electrician for proper coordination.

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 Fuse: Class H, RF Series, Fast-Acting, 3 A, 250 V AC, Non-Indicating (MPN RF3)
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MERSEN Fuse: Class H, RF Series, Fast-Acting, 50 A, 250 V AC, Non-Indicating (MPN RF50)
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MERSEN Fuse: Class H, RF Series, Fast-Acting, 50 A, 250 V AC, Non-Indicating (MPN RF50)
Class H fast-acting cylindrical fuse rated 40 A at 250 V AC. Non-indicating design for overcurrent protection in industrial electrical circuits, such as motor, transformer, and control panel applications
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Class H fast-acting cylindrical fuse rated 40 A at 250 V AC. Non-indicating design for overcurrent protection in industrial electrical circuits, such as motor, transformer, and control panel applications
MERSEN Fuse: Class H, RFS Series, Fast-Acting, 20 A, 600 V AC, Non-Indicating (MPN RFS20)
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MERSEN Fuse: Class H, RFS Series, Fast-Acting, 20 A, 600 V AC, Non-Indicating (MPN RFS20)

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