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MERSEN RFS40 Fast-Acting Cylindrical Fuse - Fast-Acting Cylindrical Fuses
MERSENFast-Acting Cylindrical Fuses

MERSEN RFS40 Fast-Acting Cylindrical Fuse

The MERSEN RFS Series RFS40 is a Class H, fast-acting cylindrical fuse rated for 40 A at 600 V AC. This non-indicating fuse is designed for overcurrent protection in industrial electrical circuits.

SKU 3G-OTH-27583

Also listed as: RFS 40 · RFS-40

Brand
MERSEN
Item
RFS40 Fast-Acting Cylindrical Fuse
Category
Fast-Acting Cylindrical Fuses
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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
RFS40
Series
RFS

Technical Documents

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

Product Description

The MERSEN RFS Series RFS40 is a Class H, fast-acting cylindrical fuse rated for 40 A at 600 V AC. This non-indicating fuse is designed for 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 RFS40 fuse used for?

The MERSEN RFS40 is a Class H, fast-acting cylindrical fuse used for overcurrent protection in industrial electrical circuits. It is rated 40 A at 600 V AC and is non-indicating, making it suitable for branch circuits and equipment where rapid response to short circuits is required.

What are the specifications of the MERSEN RFS40 fuse?

The MERSEN RFS40 is a Class H, fast-acting fuse from the RFS series. It has a current rating of 40 A and a voltage rating of 600 V AC. The fuse is non-indicating and cylindrical in shape. The manufacturer part number is RFS40, and it is designed for overcurrent protection in industrial applications.

Where to buy the MERSEN RFS40 fuse worldwide?

You can source the MERSEN RFS40 fuse worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we provide reliable sourcing for this MERSEN fuse.

How to select the correct MERSEN RFS40 fuse for an application?

To select the correct MERSEN RFS40 fuse, verify that your circuit voltage does not exceed 600 V AC and that the continuous current is at or below 40 A. Ensure the fuse is fast-acting for sensitive equipment. Always consult the manufacturer's data sheet for interrupting rating and coordination with upstream devices.

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
The MERSEN RFS35 is a Class H, fast-acting, non-indicating cylindrical fuse rated at 35 A and 600 V AC. It provides overcurrent protection in industrial electrical circuits, such as those found in motor control centers, transformers, and panelboards
MERSEN
The MERSEN RFS35 is a Class H, fast-acting, non-indicating cylindrical fuse rated at 35 A and 600 V AC. It provides overcurrent protection in industrial electrical circuits, such as those found in motor control centers, transformers, and panelboards
The MERSEN RFS20 is a Class H fast-acting cylindrical fuse rated 20 A at 600 V AC. It provides overcurrent protection in industrial circuits such as motor control centers, panelboards, and branch circuits. This non-indicating fuse is designed for rapid response to short circuits
MERSEN
The MERSEN RFS20 is a Class H fast-acting cylindrical fuse rated 20 A at 600 V AC. It provides overcurrent protection in industrial circuits such as motor control centers, panelboards, and branch circuits. This non-indicating fuse is designed for rapid response to short circuits
The MERSEN RFS10 is a Class H, fast-acting cylindrical fuse rated 10 A at 600 V AC. It is non-indicating and provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and branch circuits, where rapid response to short circuits is required
MERSEN
The MERSEN RFS10 is a Class H, fast-acting cylindrical fuse rated 10 A at 600 V AC. It is non-indicating and provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and branch circuits, where rapid response to short circuits is required
The MERSEN RFS6 is a Class H, fast-acting cylindrical fuse rated for 6 A and 600 V AC. It provides overcurrent protection in industrial electrical circuits, such as motor controllers, transformers, and panelboards. This non-indicating fuse is designed for use in standard cylindrical fuse holders
MERSEN
The MERSEN RFS6 is a Class H, fast-acting cylindrical fuse rated for 6 A and 600 V AC. It provides overcurrent protection in industrial electrical circuits, such as motor controllers, transformers, and panelboards. This non-indicating fuse is designed for use in standard cylindrical fuse holders
Class H fast-acting cylindrical fuse rated 25 A and 600 V AC. Non-indicating design from the RFS Series. Provides overcurrent protection in industrial electrical circuits such as motor control centers, panelboards, and branch circuits where rapid response to short circuits is required
MERSEN
Class H fast-acting cylindrical fuse rated 25 A and 600 V AC. Non-indicating design from the RFS Series. Provides overcurrent protection in industrial electrical circuits such as motor control centers, panelboards, and branch circuits where rapid response to short circuits is required
The MERSEN RFS60 is a Class H fast-acting cylindrical fuse rated for 60 A at 600 V AC. It is non-indicating and designed for overcurrent protection in industrial electrical circuits, such as branch-circuit protection in panels, switchgear, and motor control centers
MERSEN
The MERSEN RFS60 is a Class H fast-acting cylindrical fuse rated for 60 A at 600 V AC. It is non-indicating and designed for overcurrent protection in industrial electrical circuits, such as branch-circuit protection in panels, switchgear, and motor control centers

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The MERSEN RF15 is a Class H fast-acting cylindrical fuse rated 15 A at 250 V AC. It is non-indicating, meaning it does not provide a visual blown indication. This fuse is used for overcurrent protection in industrial electrical circuits, such as control panels and distribution equipment, where rapid response to short circuits is required
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The MERSEN RF15 is a Class H fast-acting cylindrical fuse rated 15 A at 250 V AC. It is non-indicating, meaning it does not provide a visual blown indication. This fuse is used for overcurrent protection in industrial electrical circuits, such as control panels and distribution equipment, where rapid response to short circuits is required
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Fast-acting midget fuse rated 500 mA, 600 V AC and 600 V DC. Measures 13/32 in x 1 1/2 in. Used for overcurrent protection in control panels, instrumentation, and power supplies where rapid interruption is required
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Fast-acting midget fuse rated 500 mA, 600 V AC and 600 V DC. Measures 13/32 in x 1 1/2 in. Used for overcurrent protection in control panels, instrumentation, and power supplies where rapid interruption is required