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1SCA022652R0870 ABB 20A aM Motor DIN Fuse Link Size 000 500V
ABB OFAF000AM20 is a 20 A NH size 000 aM HRC DIN fuse link rated at 500 V AC for short-circuit protection of industrial motor circuits.
£9.37
Why Choose the ABB OFAF000AM20 20A aM Motor DIN Fuse Link?
The ABB OFAF000AM20 is a reliable 20 A HRC DIN fuse link designed specifically for short-circuit protection of motor circuits in industrial electrical installations. Part of ABB’s OFAF range of DIN-type fuse links, it features an aM utilisation category developed for motor applications where normal starting currents must be tolerated while providing dependable protection against short circuits.
With a rated current of 20 A and a rated voltage of 500 V AC, the OFAF000AM20 is suitable for motor feeders, control panels and machinery protection systems. Its aM characteristic is intended to operate alongside a separate overload protection device, such as a thermal overload relay or electronic motor protection relay.
The NH000 / size 000 DIN format provides a compact solution for installation in compatible fuse bases, fuse holders and switch-fuse equipment. Its industrial HRC construction makes the OFAF000AM20 well suited to reliable motor circuit protection in machinery, manufacturing and automation systems.
Key Advantages
- Purpose-designed aM fuse link for motor circuit protection.
- 20 A rated current for industrial motor applications.
- Rated for operation at up to 500 V AC.
- Compact NH000 / size 000 DIN-format construction.
- Designed to tolerate normal motor starting currents while providing short-circuit protection.
- Suitable for coordination with dedicated motor overload protection.
Key Features
- ABB OFAF DIN-type HRC fuse link.
- 20 A rated current.
- 500 V AC rated voltage.
- aM utilisation category for motor protection.
- NH000 / size 000 fuse format.
- High-rupturing-capacity construction for reliable fault interruption.
- Blade-contact design for compatible NH fusegear.
- Compact industrial format for motor control and machinery applications.
Reliable Short-Circuit Protection for Motor Circuits
aM fuse links are specifically intended for motor circuits, where they provide short-circuit protection while accommodating the temporary high current associated with motor starting. This operating characteristic helps prevent unnecessary fuse operation during normal motor acceleration.
Because an aM fuse is intended primarily for short-circuit protection, it is normally coordinated with a separate overload protection device. The ABB OFAF000AM20 therefore provides a practical protection solution for motor starters, machinery control panels and other industrial motor applications requiring a compact 20 A NH000 fuse link.
Typical Applications
- Industrial motor protection circuits.
- Motor starters and motor control centres.
- Pumps, fans and ventilation equipment.
- Conveyors and material handling machinery.
- Manufacturing and processing equipment.
- Industrial automation and machinery control panels.
Technical Specifications
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| Fuse Type | NH (DIN) | |
|---|---|---|
| Fuse Size | NH000 | |
| Fuse Class | aM | |
| Current | 20 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Series | OFAF | |
| ABB order code | 1SCA022652R0870 | |
| Product type | HRC DIN motor fuse link | |
| Fuse system | DIN / NH | |
| Utilisation category | aM | |
| Rated current | 20 A | |
| Rated voltage | 500 V AC | |
| Fuse size | NH000 / size 000 | |
| Application | Motor circuit short-circuit protection | |
| Mounting | Compatible NH fuse base or switch-fuse equipment |
Frequently Asked Questions
What is the ABB OFAF000AM20 used for?
The ABB OFAF000AM20 is an aM HRC DIN fuse link designed primarily to provide short-circuit protection for industrial motor circuits.
What is the current rating of the OFAF000AM20?
The OFAF000AM20 has a rated current of 20 A.
What voltage is the ABB OFAF000AM20 rated for?
The OFAF000AM20 is rated for operation at up to 500 V AC.
What fuse size is the OFAF000AM20?
The OFAF000AM20 is an NH000 / size 000 DIN-type fuse link designed for compatible industrial fusegear.
Does the OFAF000AM20 provide motor overload protection?
The aM characteristic is primarily intended for motor short-circuit protection, so the fuse is normally used together with a separate overload protection device.
Trusted Industrial Motor Protection from ABB
ABB OFAF DIN-type fuse links provide dependable industrial circuit protection, with the OFAF000AM20 combining a 20 A rating, 500 V AC capability, NH size 000 construction and an aM characteristic specifically suited to motor circuits.
