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1SCA022701R2400 ABB 125A aM Motor DIN Fuse Link Size 1 690V
ABB OFAA1AM125 is a 125 A NH size 1 aM HRC DIN fuse link rated up to 690 V AC for short-circuit protection of industrial motor circuits.
£18.75
Why Choose the ABB OFAA1AM125 125A aM Motor Fuse Link?
The ABB OFAA1AM125 is a high-performance 125 A HRC DIN fuse link designed specifically for motor circuit protection in industrial electrical installations. Part of ABB’s OFAA range of DIN-type fuse links, this NH size 1 fuse uses the aM utilisation category to provide dependable short-circuit protection for motors and associated switching equipment.
Designed for operation at voltages up to 690 V AC, the OFAA1AM125 is suitable for demanding industrial motor circuits where high fault-current protection is required. The aM operating characteristic is intended for motor applications and is typically coordinated with a separate overload protection device, such as a motor protection relay or thermal overload relay.
With a rated current of 125 A and an NH size 1 DIN-format body, this fuse link is suitable for installation in compatible ABB fuse bases, fuse holders and switch-fuse equipment. Its standardised industrial format supports straightforward integration into motor control centres, switchboards and machinery control systems.
Key Advantages
- Purpose-designed aM fuse link for motor circuit protection.
- 125 A rated current for industrial motor applications.
- Rated for systems up to 690 V AC.
- NH size 1 DIN-format construction.
- Provides reliable short-circuit protection for motors and motor-control equipment.
- Designed for coordination with separate motor overload protection.
Key Features
- ABB OFAA DIN-type HRC fuse link.
- 125 A rated current.
- 690 V AC rated voltage.
- aM utilisation category for motor circuit protection.
- NH size 1 fuse format.
- Approximate power loss of 7.5 W at rated current.
- Compatible with suitable NH fuse bases and switch-fuse equipment.
- Industrial construction for dependable electrical protection.
Reliable Protection for Industrial Motor Circuits
aM fuse links are specifically intended for motor circuits, providing short-circuit protection while allowing the temporary high currents associated with motor starting. They are normally used together with dedicated overload protection to provide coordinated protection for the motor and associated control equipment.
The ABB OFAA range uses standard DIN-type NH fuse construction, making the OFAA1AM125 suitable for industrial distribution and motor-control systems where dependable protection, straightforward replacement and compatibility with established fusegear are important.
Typical Applications
- Industrial motor protection circuits.
- Motor control centres and control panels.
- Pumps, fans and compressor systems.
- Conveyors and material handling machinery.
- Manufacturing and processing equipment.
- Industrial switchboards and switch-fuse assemblies.
Technical Specifications
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| Voltage | 690 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Fuse Class | aM | |
| Current | 125 A | |
| Series | OFAA | |
| ABB order code | 1SCA022701R2400 | |
| Product type | HRC DIN motor fuse link | |
| Utilisation category | aM | |
| Rated current | 125 A | |
| Rated voltage | 690 V AC | |
| Fuse size | NH1 / size 1 | |
| Power loss | approx. 7.5 W | |
| Standard | IEC 60269 | |
| Application | Motor circuit short-circuit protection | |
| Weight | approx. 0.30 kg |
Frequently Asked Questions
What is the ABB OFAA1AM125 used for?
The ABB OFAA1AM125 is an aM HRC fuse link designed primarily to provide short-circuit protection for industrial motor circuits.
What is the current rating of the OFAA1AM125?
The OFAA1AM125 has a rated current of 125 A.
What voltage is the ABB OFAA1AM125 rated for?
The fuse link is rated for operation at up to 690 V AC.
What fuse size is the OFAA1AM125?
The OFAA1AM125 is an NH size 1 DIN-type fuse link for use with compatible fuse bases and switch-fuse equipment.
Does an aM fuse provide motor overload protection?
An aM fuse is primarily intended for short-circuit protection of motor circuits and is normally coordinated with a separate overload protection device.
Trusted Industrial Circuit Protection from ABB
ABB OFAA DIN-type fuse links provide dependable circuit protection for industrial electrical systems, with the OFAA1AM125 combining a 125 A rating, NH size 1 construction and an aM characteristic suited to motor protection applications.
