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MERSEN FUSE 600V 20A MIDGET FUSE ATM20
The ATM20 Amp-Trap® midget fuse delivers superior short-circuit protection with fast-acting response, rated for 600VAC and 600VDC at 20A, ideal for industrial and commercial electrical systems.
£7.02
Why Choose the Mersen ATM20 Fast-Acting Fuse?
The Mersen ATM20 is a premium fast-acting midget fuse engineered to provide dependable supplementary overcurrent protection for industrial control circuits, transformers, instrumentation, power supplies and other electrical equipment. As part of the proven Mersen Amp-Trap® ATM series, it rapidly interrupts overloads and short circuits, helping to minimise equipment damage and improve overall system reliability.
With a rated current of 20 A and voltage ratings of 600 V AC and 600 V DC, the ATM20 is designed for demanding industrial and commercial electrical applications. Its fast-acting characteristic makes it ideal for circuits requiring immediate fault interruption where sensitive components need reliable protection.
Manufactured in the standard 10 × 38 mm midget fuse format, the ATM20 fits a wide range of compatible fuse holders and fuse blocks. Its compact design, 100 kA interrupting rating and current-limiting performance make it a popular choice for OEM equipment, industrial control panels and automation systems.
Key Advantages
- Compact fast-acting midget fuse for supplementary circuit protection.
- 20 A current rating for industrial electrical applications.
- 600 V AC/DC voltage rating for demanding systems.
- Fast response helps protect equipment against overloads and short circuits.
- Current-limiting construction reduces fault energy.
- Standard 10 × 38 mm format for easy installation.
Key Features
- Mersen Amp-Trap® ATM series.
- 20 A rated current.
- 600 V AC rated voltage.
- 600 V DC rated voltage.
- Fast-acting operating characteristic.
- 100 kA interrupting rating.
- Current-limiting midget fuse construction.
- Compatible with standard 10 × 38 mm fuse holders.
Fast Protection for Industrial Electrical Circuits
The Mersen ATM20 is designed to clear fault currents rapidly, helping protect electrical equipment before excessive current can cause overheating or permanent damage. Its fast-acting characteristic makes it particularly suitable for circuits where rapid disconnection is essential.
Its current-limiting design helps reduce the thermal and mechanical stresses created during short-circuit conditions, improving equipment reliability while lowering maintenance costs in industrial installations.
Typical Applications
- Industrial control panels.
- Instrumentation systems.
- Control transformers.
- Power supplies.
- Automation machinery.
- OEM electrical equipment.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Fast acting | |
| Item number | ATM20 | |
| Description | Fuse ATM - Midget - Fast-Acting 600VAC 600VDC 20A Ferrule Amp-Trap® | |
| EAN/UPC Code | 782001900700 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 600 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 20 A | |
| AC or DC | AC/DC | |
| Fuse Class | Midget | |
| Speed/Characteristic | Fast-Acting | |
| Mounting | Clip | |
| AC Max I.R./Breaking Capacity | I1: 100 kA | |
| Connection/Terminal Material | Tin-Plated Copper | |
| Connection/Terminal Type | Ferrule | |
| Product Diameter | 10.3 mm | |
| Product Length | 38.1 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.0816 kg | |
| Sell Pack Width | 22.4 mm | |
| Sell Pack Length | 41.4 mm | |
| Sell Pack Height | 54.1 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.0077 kg | |
| HS Code | 85361050 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen ATM20 used for?
The ATM20 provides supplementary overcurrent protection for industrial control circuits, transformers, instrumentation, power supplies and electrical equipment.
What is the current rating of the ATM20?
The Mersen ATM20 has a rated current of 20 A.
What voltage is the ATM20 rated for?
The fuse is rated for applications up to 600 V AC and 600 V DC.
Is the ATM20 a fast-acting fuse?
Yes. The ATM20 is a fast-acting fuse designed to interrupt fault currents rapidly and protect sensitive electrical equipment.
What fuse holder should be used with the ATM20?
The ATM20 should be installed in a compatible 10 × 38 mm midget fuse holder or fuse block.
Trusted Protection for Industrial Equipment
Mersen Amp-Trap® ATM fast-acting fuses are trusted by electrical engineers, panel builders and OEM manufacturers for dependable supplementary protection of industrial electrical systems.
