OA4B10 ABB 1 NO Auxiliary Contact for OS Mini Switches

OA4B10 ABB 1 NO Auxiliary Contact for OS Mini Switches

ABB OA4B10 is a single-pole 1 NO auxiliary contact for compatible OS Mini switches, designed for direct mounting to the switch mechanism for auxiliary signalling, monitoring and control functions.

SKU: OA4B10Alt SKU: 1SCA022276R9050MPN: OA4B10
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List Price £23.64 ex VAT
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Manufacturer Lead Time Estimated Delivery 4 - 5 Days
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Manufacturer Lead Time

£15.37

Why Choose the ABB OA4B10 Auxiliary Contact?

The ABB OA4B10 is a single-pole normally open (1 NO) auxiliary contact designed for compatible ABB OS Mini switch fuses. Identified by ABB order code 1SCA022276R9050, it belongs to the ABB OS/OESA accessory range and provides an additional contact for signalling, monitoring and control functions.

Designed for mounting directly to the switch mechanism, the OA4B10 provides a compact way to extend the auxiliary functionality of an OS Mini switch. Its normally open contact can be incorporated into status indication, interlocking, monitoring or control circuits associated with the main switching device.

The OA4B10 features one normally open contact with a contact gap greater than 3 mm. Its purpose-designed construction and low 0.03 kg unit weight make it a practical ABB accessory for OS Mini installations requiring an additional NO auxiliary contact.

Key Advantages

  • Provides 1 NO auxiliary contact for compatible ABB OS Mini switches.
  • Supports 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 and lightweight construction for switchgear integration.
  • Genuine ABB OS/OESA accessory with exact order code identification.

Key Features

  • ABB OA auxiliary contact range.
  • 1 normally open (NO) contact.
  • Single-pole configuration.
  • Designed for ABB OS Mini applications.
  • Mounts directly to the switch mechanism.
  • Suitable for auxiliary and test-contact functions.
  • Contact gap greater than 3 mm.
  • Supplied as one piece.
  • Unit weight approximately 0.03 kg.

Auxiliary Signalling for ABB OS Mini Switches

Auxiliary contacts provide secondary electrical contact states for control and monitoring circuits without carrying the main switched load. They can be used to provide switch-status feedback, interlocking signals and other control functions associated with low-voltage switching equipment.

The ABB OA4B10 provides a dedicated normally open auxiliary contact for compatible OS Mini installations. Its direct mechanism mounting and greater than 3 mm contact gap make it a compact, purpose-designed accessory for extending the signalling and control capabilities of ABB switching equipment.

Typical Applications

  • ABB OS Mini switch 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 1SCA022276R9050
ABB product group 311031-OS/OESA Accessories
Product type Auxiliary contact
Contact configuration 1 NO
Number of contacts 1
Number of poles 1
Contact gap Greater than 3 mm
Compatibility ABB OS Mini
Mounting To switch mechanism
Function Auxiliary/test contact
Units per type 1 piece
Unit weight 0.03 kg

Frequently Asked Questions

What is the ABB OA4B10?

The OA4B10 is a single-pole auxiliary contact with one normally open contact, designed for compatible ABB OS Mini switching equipment.

What contact configuration does the OA4B10 provide?

The OA4B10 provides 1 NO (one normally open) contact.

What is the ABB OA4B10 used for?

The OA4B10 provides an additional contact for signalling, monitoring, interlocking and control circuits associated with compatible ABB OS Mini switches.

How is the OA4B10 mounted?

The OA4B10 is designed for mounting directly to the switch mechanism of compatible ABB OS Mini equipment.

What is the contact gap of the OA4B10?

The OA4B10 is a single-pole auxiliary contact with a contact gap of greater than 3 mm.

Trusted ABB Switch Accessories

ABB OS/OESA accessories are engineered to complement compatible ABB switching products, providing purpose-designed solutions for auxiliary signalling, monitoring, control, interlocking and switchgear integration.