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1SCA022698R0440 ABB 500A aM DIN HRC Fuse Link Size 3 500V
ABB OFAF3AM500 is a 500 A 500 V AC aM DIN size 3 HRC fuse link with dual indication designed for short-circuit protection of industrial motor circuits.
£51.44
Why Choose the ABB OFAF3AM500 HRC Fuse Link?
The ABB OFAF3AM500 is a high-performance DIN-type HRC fuse link designed for dependable short-circuit protection of motor circuits in industrial low-voltage electrical systems. With ABB order code 1SCA022698R0440, it forms part of the ABB OFAF aM fuse range and combines high rupturing capacity with a standardised DIN blade format for integration into compatible fuse bases and fuse-switch equipment.
Rated at 500 A and 500 V AC, the OFAF3AM500 uses an aM utilisation category developed for motor protection applications. This characteristic provides short-circuit protection while accommodating the temporary high starting currents associated with electric motors, with separate overload protection normally incorporated into the coordinated motor protection system.
The OFAF3AM500 is a DIN size 3 / NH3 fuse link with dual indication. Its robust HRC construction, 42 W power loss and standardised size 3 format make it suitable for substantial motor feeders, motor control centres and industrial machinery requiring reliable high-current circuit protection.
Key Advantages
- 500 A rated current for high-current industrial motor circuits.
- 500 V AC rated voltage for low-voltage power systems.
- aM fuse characteristic designed for motor-circuit short-circuit protection.
- DIN size 3 / NH3 construction for compatible industrial fusegear.
- Dual indication assists with identification of fuse operation.
- HRC construction provides dependable interruption of high fault currents.
- Designed to tolerate motor starting currents when coordinated with suitable overload protection.
Key Features
- ABB OFAF aM motor-protection fuse range.
- 500 A nominal current rating.
- 500 V AC rated voltage.
- aM utilisation category.
- DIN size 3 / NH3 fuse format.
- Dual fuse indication.
- 42 W power loss.
- DIN blade-contact construction for compatible fusegear.
- Designed for short-circuit protection of industrial motor circuits.
- ABB order code 1SCA022698R0440.
Reliable Short-Circuit Protection for Industrial Motor Circuits
The ABB OFAF3AM500 uses an aM fuse characteristic specifically suited to motor circuits. This type of fuse provides short-circuit protection while allowing the temporary current peaks associated with motor starting, making it suitable for coordinated protection arrangements incorporating a separate overload-protection device.
With its 500 A current rating, 500 V AC voltage rating and DIN size 3 construction, the OFAF3AM500 is suited to demanding industrial motor feeders and control assemblies. Its standardised blade format enables installation in compatible NH3 fuse bases and fuse-switch equipment, while dual indication helps simplify inspection and maintenance.
Typical Applications
- High-current industrial electric motor feeders.
- Motor control centres and industrial switchboards.
- Heavy industrial machinery and production equipment.
- Pumps, fans, compressors and processing machinery.
- Motor starters with coordinated overload protection.
- Fuse-switch disconnectors and compatible NH3 fuse bases.
Technical Specifications
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| Voltage | 500 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | aM | |
| Current | 500 A | |
| Fuse Indication | Dual indicator | |
| Series | OFAF | |
| ABB order code | 1SCA022698R0440 | |
| Product type | DIN HRC fuse link | |
| Fuse category | aM | |
| Application | Motor-circuit protection | |
| Rated current | 500 A | |
| Rated voltage | 500 V AC | |
| Fuse size | DIN size 3 / NH3 | |
| Indication | Dual indication | |
| Power loss | 42 W | |
| Standard | IEC 60269 | |
| Weight | 0.60 kg | |
| Product group | 311002-Fuses And Fusebases |
Frequently Asked Questions
What is the ABB OFAF3AM500 used for?
The ABB OFAF3AM500 is a 500 A aM HRC fuse link designed primarily to provide short-circuit protection for industrial motor circuits.
What is the current rating of the OFAF3AM500?
The OFAF3AM500 has a rated current of 500 A.
What voltage is the ABB OFAF3AM500 rated for?
The OFAF3AM500 is rated at 500 V AC.
What size is the OFAF3AM500 fuse link?
The OFAF3AM500 is a DIN size 3 / NH3 HRC fuse link designed for use with compatible size 3 fuse bases and fusegear.
What does the aM classification mean on the OFAF3AM500?
The aM classification identifies a fuse intended for motor-circuit short-circuit protection. It is designed to accommodate motor starting currents and is normally coordinated with separate overload protection.
Does the ABB OFAF3AM500 have fuse indication?
Yes. The OFAF3AM500 features dual indication to assist with identifying fuse operation during inspection and maintenance.
Trusted by Industrial Electrical Professionals Worldwide
ABB OFAF aM HRC fuse links are designed for dependable motor-circuit protection in industrial electrical systems, combining standardised DIN construction with protection characteristics suited to demanding motor applications.
