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ABB Aux.Contact 1+1 SF 40A OA4B1C
ABB OA4B1C auxiliary contact block with one changeover contact designed for OS Mini switch disconnectors in industrial control applications.
£11.78
Why Choose the ABB OA4B1C Auxiliary Contact Block?
The ABB OA4B1C is a compact and reliable auxiliary contact block designed to provide additional switching and status indication capability for ABB OS Mini switch disconnectors and switch fuses. It enables electrical monitoring, signalling and control integration within industrial power distribution and automation systems.
This auxiliary contact mechanism features a changeover contact arrangement, allowing both normally open and normally closed switching functions from a single auxiliary device. The OA4B1C is mounted directly to the switch mechanism and is designed for use with compatible ABB OS Mini switch disconnectors.
With a 1 C/O changeover contact configuration, 16 A current rating and compatibility with ABB OS Mini switch disconnectors, the OA4B1C provides dependable auxiliary signalling for industrial control panels and electrical distribution applications.
Key Advantages
- Compact auxiliary contact mechanism for ABB switch disconnectors.
- 1 changeover contact (C/O) for flexible monitoring and control.
- 16 A current rating for reliable auxiliary switching applications.
- Designed for ABB OS Mini switch disconnectors.
- Direct mounting to the switch mechanism for easy installation.
- Supports electrical indication, interlocking and automation feedback functions.
Key Features
- ABB OA4B1C auxiliary contact series.
- 1 C/O (SPDT) auxiliary contact.
- 1 NO and 1 NC contact arrangement.
- 16 A rated current.
- Mounting to switch mechanism design.
- Screw terminal connection.
- Suitable for ABB OS Mini switch disconnectors.
- Compact accessory design for industrial control applications.
Reliable Switch Monitoring for Industrial Systems
Auxiliary contact blocks such as the ABB OA4B1C allow switch disconnectors and fuse switches to provide electrical feedback to control systems. This enables improved monitoring, interlocking and automation functionality in industrial installations.
The OA series is designed for electrical engineers and panel builders requiring dependable accessories that integrate seamlessly with ABB switching equipment and provide additional control flexibility.
Typical Applications
- Industrial control panels.
- ABB OS Mini switch disconnectors.
- Motor isolation and control systems.
- Electrical distribution equipment.
- Automation and monitoring circuits.
- OEM machinery control systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Device Type | Auxiliary contact block | |
| Auxiliary Contacts | 1NO + 1NC | |
| Manufacturer | ABB | |
| Series | OA Auxiliary Contacts | |
| Model | OA4B1C | |
| Product type | Auxiliary contact block | |
| Contact configuration | 1 C/O changeover contact | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Rated current | 16 A | |
| Mounting type | Switch mechanism mounting | |
| Terminal connection | Screw terminals | |
| Suitable for | ABB OS Mini switch disconnectors | |
| Compatible range | OS16, OS20, OS25, OS30, OS32, OS40 | |
| Protection rating | IP20 | |
| ABB product ID | 1SCA022193R0150 | |
| Weight | approx. 0.03 kg |
Frequently Asked Questions
What is the ABB OA4B1C used for?
The ABB OA4B1C is an auxiliary contact block used to provide additional switching feedback and control capability for ABB OS Mini switch disconnectors.
What contact configuration does the OA4B1C have?
The OA4B1C features a 1 C/O changeover contact configuration with one normally open and one normally closed contact.
Which ABB switches is the OA4B1C compatible with?
The OA4B1C is designed for use with compatible ABB OS Mini switch disconnectors and switch fuse products.
How is the OA4B1C installed?
The auxiliary contact is mounted directly to the switch mechanism using a compact integrated installation design.
What current rating does the OA4B1C support?
The OA4B1C supports a rated current of 16 A for auxiliary switching applications.
Trusted by Industrial Control Engineers
ABB OA auxiliary contact blocks provide reliable switching feedback and control solutions for industrial electrical systems, automation panels and power distribution equipment.
