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OFAF1AM315 ABB 315A aM DIN Size 1 Motor Fuse 500V
ABB OFAF1AM315 is a 315 A aM DIN size 1 HRC motor fuse link rated at 500 V AC and designed for reliable short-circuit protection of industrial motor circuits.
£18.99
Why Choose the ABB OFAF1AM315 DIN Motor Fuse?
The ABB OFAF1AM315 is a high-performance DIN-type HRC motor 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 OFAF1AM315 uses the standardised DIN size 1 / NH1 format for installation in compatible fuse bases, fuse switches and switch-fuse equipment. Its aM operating characteristic is designed to tolerate the elevated currents associated with normal motor starting while providing dependable protection against damaging short-circuit currents.
With a rated current of 315 A and a rated voltage of 500 V AC, the OFAF1AM315 is suitable for demanding industrial motor circuits and motor control systems. Its robust HRC construction provides reliable protection for high-current motor applications while maintaining compatibility with standard DIN fusegear.
Key Advantages
- Purpose-designed aM motor fuse for short-circuit protection.
- 315 A rated current for high-current industrial motor circuits.
- 500 V AC rated voltage for low-voltage motor applications.
- Standardised DIN size 1 / NH1 construction.
- Designed to accommodate elevated current during normal motor starting.
- Suitable for coordination with separate motor overload protection devices.
Key Features
- ABB OFAF motor-rated fuse range.
- 315 A rated current.
- 500 V AC rated voltage.
- aM utilisation category for motor circuit protection.
- DIN size 1 / NH1 HRC fuse-link construction.
- Designed primarily for motor short-circuit protection.
- 22.1 W power loss at rated current.
- Suitable for use with compatible DIN fuse bases and switch-fuse equipment.
- ABB manufacturer order code 1SCA022697R7810.
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 tolerate these normal starting conditions while providing high-performance protection against damaging short-circuit currents.
The ABB OFAF1AM315 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 circuit breaker or equivalent protective device 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 | |
|---|---|---|
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Fuse Class | aM | |
| Current | 315 A | |
| Device Type | Fuse link | |
| Series | OFAF | |
| ABB manufacturer order code | 1SCA022697R7810 | |
| Product group | 311002-Fuses And Fusebases | |
| Product type | DIN motor-rated HRC fuse link | |
| Fuse utilisation category | aM | |
| Rated current | 315 A | |
| Rated voltage | 500 V AC | |
| DIN / NH size | 1 / NH1 | |
| Power loss at rated current | 22.1 W | |
| Weight | approx. 0.30 kg | |
| Application | Motor circuit short-circuit protection | |
| Protection function | Short-circuit protection with separate overload protection required |
Frequently Asked Questions
What is the ABB OFAF1AM315 used for?
The ABB OFAF1AM315 is a 315 A aM DIN motor fuse designed primarily to provide short-circuit protection for industrial electric motor circuits.
What is the current rating of the ABB OFAF1AM315?
The OFAF1AM315 has a rated current of 315 A.
What voltage is the ABB OFAF1AM315 rated for?
The OFAF1AM315 is rated at 500 V AC.
What size is the ABB OFAF1AM315 fuse?
The OFAF1AM315 is a DIN size 1 / NH1 fuse link designed for compatible fuse bases, fuse switches and motor control equipment.
Does the ABB OFAF1AM315 provide motor overload protection?
No. The aM utilisation category is intended primarily for motor short-circuit protection, so the OFAF1AM315 should be coordinated with a suitable overload relay or other motor overload protection device.
Trusted ABB Motor Circuit Protection
ABB OFAF motor-rated fuse links provide dependable short-circuit protection for industrial motor circuits, combining aM fuse characteristics with robust DIN construction for integration into modern motor control and electrical distribution systems.
