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OA4B01 ABB 1 NC Auxiliary Contact for OS Mini Switch Fuses
ABB OA4B01 is a single-pole 1 NC auxiliary contact for compatible OS Mini switch fuses, designed for mounting to the switch mechanism for auxiliary, signalling and control functions.
£12.32
Why Choose the ABB OA4B01 Auxiliary Contact?
The ABB OA4B01 is a single-pole normally closed (1 NC) auxiliary contact designed for compatible ABB OS Mini switch fuses. Identified by ABB order code 1SCA022276R9210, it belongs to ABB's OS/OESA accessory range and provides an additional contact for auxiliary, signalling and control functions.
Designed to mount directly to the switch mechanism, the OA4B01 provides a simple way to extend the electrical signalling capabilities of a compatible OS Mini switch fuse. Its normally closed contact can be incorporated into monitoring, indication, interlocking or control circuits associated with the main switching device.
The OA4B01 features one normally closed contact with a contact gap greater than 3 mm. Its compact construction and direct mechanism mounting make it a purpose-designed ABB accessory for OS Mini installations where an additional NC auxiliary contact is required.
Key Advantages
- Provides 1 NC auxiliary contact for compatible ABB OS Mini switch fuses.
- Supports auxiliary signalling, monitoring, interlocking and control functions.
- Designed for direct mounting to the switch mechanism.
- Single-pole contact with a greater than 3 mm contact gap.
- Compact accessory engineered specifically for ABB switch-fuse applications.
- Genuine ABB OS/OESA accessory with exact order code identification.
Key Features
- ABB OA auxiliary contact range.
- 1 normally closed (NC) contact.
- Single-pole configuration.
- Designed for ABB OS Mini switch fuses.
- Mounts to the switch mechanism.
- Suitable for auxiliary and test-contact applications.
- Contact gap greater than 3 mm.
- Compact accessory for control and signalling circuits.
- Unit weight approximately 0.03 kg.
Auxiliary Signalling for ABB OS Mini Switches
Auxiliary contacts provide secondary electrical contact states that can be used by control and monitoring systems without carrying the main switched load. They are commonly incorporated into indication, status feedback, interlocking and other control circuits associated with switching equipment.
The ABB OA4B01 provides a dedicated normally closed auxiliary contact for compatible OS Mini switch fuses. Its direct mechanism mounting and greater than 3 mm contact gap make it a compact, purpose-designed accessory for extending the control and signalling functionality of an ABB switch-fuse installation.
Typical Applications
- ABB OS Mini switch-fuse assemblies.
- Switch position signalling circuits.
- Electrical interlocking circuits.
- Control-panel status monitoring.
- Industrial switchboard control circuits.
- Auxiliary and test-contact applications.
Technical Specifications
| Series | OA |
|---|---|
| ABB order code | 1SCA022276R9210 |
| ABB product group | 311031-OS/OESA Accessories |
| Product type | Auxiliary contact |
| Contact configuration | 1 NC |
| Number of contacts | 1 |
| Number of poles | 1 |
| Contact gap | Greater than 3 mm |
| Compatibility | ABB OS Mini switch fuses |
| Mounting | To switch mechanism |
| Function | Auxiliary/test contact |
| Unit weight | 0.03 kg |
Frequently Asked Questions
What is the ABB OA4B01?
The OA4B01 is a single-pole auxiliary contact with one normally closed contact, designed for use with compatible ABB OS Mini switch fuses.
What contact configuration does the OA4B01 provide?
The OA4B01 provides 1 NC (one normally closed) contact.
What is the ABB OA4B01 used for?
The OA4B01 can provide an additional contact for signalling, monitoring, interlocking and control circuits associated with a compatible OS Mini switch fuse.
How is the OA4B01 mounted?
The OA4B01 is designed for mounting to the switch mechanism of a compatible ABB OS Mini switch fuse.
What is the contact gap of the OA4B01?
The OA4B01 is a single-pole auxiliary contact with a contact gap of greater than 3 mm.
Trusted ABB Switch-Fuse Accessories
ABB OS/OESA accessories are engineered to complement compatible ABB switching products, providing purpose-designed solutions for auxiliary signalling, control, interlocking and switchgear integration.
