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1SCA022697R9510 ABB 400A aM NH2 DIN Motor Fuse 500V
ABB OFAF2AM400 is a 400 A aM NH2 DIN-type HRC fuse link rated at 500 V AC and designed for reliable short-circuit protection of industrial motor circuits.
£22.78
Why Choose the ABB OFAF2AM400 HRC Motor Fuse?
The ABB OFAF2AM400 is a high-performance DIN-type HRC fuse link designed specifically for short-circuit protection of motor circuits in industrial electrical installations. As part of the ABB OFAF fuse range, it features an aM utilisation category developed for motor applications where overload protection is provided separately by an overload relay or other suitable motor protection device.
The OFAF2AM400 uses the standardised DIN size 2 / NH2 format for installation in compatible fuse bases, fuse switches and switch-fuse equipment. Its aM operating characteristic is designed to accommodate the elevated currents associated with normal motor starting while providing dependable protection against damaging short-circuit currents.
With a rated current of 400 A and a rated voltage of 500 V AC, the OFAF2AM400 is suitable for demanding high-current motor circuits and industrial motor control systems. ABB order code 1SCA022697R9510 identifies this specific 400 A NH2 aM motor fuse link.
Key Advantages
- Purpose-designed aM motor fuse for short-circuit protection.
- 400 A rated current for high-current industrial motor circuits.
- 500 V AC rated voltage for low-voltage motor applications.
- Standardised DIN size 2 / NH2 construction.
- Designed to accommodate elevated current during normal motor starting.
- Suitable for coordination with separate motor overload protection devices.
Key Features
- ABB OFAF DIN-type HRC motor fuse link.
- 400 A rated current.
- 500 V AC rated voltage.
- aM utilisation category for motor circuit protection.
- DIN size 2 / NH2 fuse-link construction.
- Designed primarily for motor short-circuit protection.
- 29.7 W power loss at rated current.
- Approximately 0.40 kg unit weight.
- Manufactured for applications covered by IEC 60269.
- ABB order code 1SCA022697R9510.
Reliable Short-Circuit Protection for Motor Circuits
Motor circuits require specialised protection because electric motors can draw substantially higher current during starting than during normal operation. An aM fuse is designed to accommodate these normal starting conditions while providing high-performance protection against damaging short-circuit currents.
The ABB OFAF2AM400 is designed to operate as part of a coordinated motor protection system. The fuse provides short-circuit protection, while a suitable overload relay, motor protection device or equivalent protective equipment provides the required overload protection for the motor.
Typical Applications
- High-current industrial electric motor circuits.
- Motor control centres and MCC panels.
- Pumps, fans and compressor systems.
- Conveyors and material handling machinery.
- Industrial production and processing equipment.
- Switchboards and motor control panels.
Technical Specifications
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| Voltage | 500 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH2 | |
| Fuse Class | aM | |
| Current | 400 A | |
| Series | OFAF | |
| ABB order code | 1SCA022697R9510 | |
| Product group | 311002-Fuses And Fusebases | |
| Product type | DIN-type HRC motor fuse link | |
| Fuse utilisation category | aM | |
| Rated current | 400 A | |
| Rated voltage | 500 V AC | |
| DIN / NH size | 2 / NH2 | |
| Power loss at rated current | 29.7 W | |
| Weight | approx. 0.40 kg | |
| Standard | IEC 60269 | |
| Application | Motor circuit short-circuit protection | |
| Protection function | Short-circuit protection with separate overload protection required |
Frequently Asked Questions
What is the ABB OFAF2AM400 used for?
The ABB OFAF2AM400 is a 400 A aM DIN-type HRC fuse link designed primarily to provide short-circuit protection for industrial electric motor circuits.
What is the current rating of the ABB OFAF2AM400?
The OFAF2AM400 has a rated current of 400 A.
What voltage is the ABB OFAF2AM400 rated for?
The OFAF2AM400 is rated at 500 V AC.
What size is the ABB OFAF2AM400 fuse?
The OFAF2AM400 is an NH2 / DIN size 2 HRC fuse link designed for use with compatible fuse bases, fuse switches and motor control equipment.
Does the ABB OFAF2AM400 provide motor overload protection?
No. The aM utilisation category is intended primarily for motor short-circuit protection, so the OFAF2AM400 should be coordinated with a suitable overload relay or other motor overload protection device.
Trusted ABB Motor Circuit Protection
ABB OFAF motor-rated HRC fuse links provide dependable short-circuit protection for industrial motor circuits, combining aM fuse characteristics with standardised DIN construction for integration into motor control and low-voltage electrical distribution systems.
