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ABB Module for SF aux. contacts OEA28

ABB Module for SF aux. contacts OEA28

ABB OEA28 auxiliary contact module for OS series switch disconnectors supporting up to eight auxiliary contact blocks for industrial monitoring and control applications.

SKU: OEA28Alt SKU: OEA28MPN: 1SCA022714R8810
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Why Choose the ABB OEA28 Auxiliary Contact Module?

The ABB OEA28 is a robust and flexible auxiliary contact module designed to expand the monitoring and control capabilities of ABB OS series switch disconnectors and switch fuses. It provides a mounting solution for additional auxiliary contacts, enabling electrical status indication, remote monitoring and automation integration in industrial power systems.

This module is designed to accommodate up to 8 auxiliary contact blocks such as ABB OA1G10 and OA3G01 units, allowing switch position feedback and control signalling to be customised according to system requirements. The OEA28 mounts to the side of compatible ABB switch disconnectors for straightforward installation.

Suitable for ABB OS series switch disconnectors from OS32 to OS1250, the OEA28 provides a compact and reliable accessory platform for industrial distribution boards, machinery control panels and automation applications.

Key Advantages

  • Flexible auxiliary contact mounting module for ABB OS series switches.
  • Supports installation of up to 8 auxiliary contact blocks.
  • Compatible with ABB OA1G10 and OA3G01 auxiliary contacts.
  • Enables remote indication, electrical interlocking and automation feedback.
  • Side-mounted design for integration with ABB switch disconnectors.
  • Compact construction for industrial electrical installations.

Key Features

  • ABB OEA28 auxiliary contact module.
  • OS series switch disconnector accessory.
  • Capacity for up to 8 auxiliary contact blocks.
  • Designed for ABB OA series auxiliary contacts.
  • Side mounting installation.
  • Screw fixing design.
  • Suitable for industrial power distribution and automation systems.
  • Compact modular accessory construction.

Reliable Switch Monitoring for Industrial Systems

The ABB OEA28 provides a practical method for adding auxiliary signalling contacts to switch disconnectors, allowing electrical systems to monitor switch position and provide feedback to control equipment. This improves operational visibility and supports automated control functions.

Designed for electrical engineers, panel builders and automation specialists, the OEA28 offers a scalable accessory solution for ABB OS switchgear where additional auxiliary contacts are required.

Typical Applications

  • Industrial power distribution panels.
  • ABB OS series switch disconnectors.
  • Motor isolation and control systems.
  • Manufacturing plant electrical installations.
  • Automation and monitoring circuits.
  • OEM machinery control systems.

Technical Specifications

HS Code 85381000
Country of Manufacture Finland
Manufacturer ABB
Series OEA Auxiliary Contact Modules
Model OEA28
Product type Auxiliary contact module / mounting frame
Compatible range ABB OS series switch disconnectors
Suitable switch range OS32 to OS1250
Auxiliary contact capacity Up to 8 contact blocks
Compatible auxiliary contacts OA1G10, OA3G01
Mounting type Side mounting
Connection type Screw fixing
Protection rating IP20 / IP65 depending on assembly
Dimensions (W × H × D) approx. 32 × 100 × 70 mm
Weight approx. 0.04 kg
ABB product ID 1SCA022714R8810
Device Type Auxiliary contact block

Frequently Asked Questions

What is the ABB OEA28 used for?

The ABB OEA28 is an auxiliary contact module used to mount additional auxiliary contacts on compatible ABB OS series switch disconnectors.

How many auxiliary contacts can the OEA28 hold?

The OEA28 can accommodate up to 8 auxiliary contact blocks for switch status monitoring and control applications.

Which auxiliary contacts are compatible with the OEA28?

The OEA28 is designed for use with compatible ABB OA auxiliary contacts including OA1G10 and OA3G01 contact blocks.

Which ABB switches is the OEA28 compatible with?

The OEA28 is suitable for ABB OS series switch disconnectors including OS32 to OS1250 ranges.

How is the OEA28 installed?

The OEA28 is installed as a side-mounted accessory on compatible ABB switch disconnectors.

Trusted by Industrial Control Engineers

ABB OEA auxiliary contact modules provide reliable expansion solutions for industrial switchgear, enabling effective monitoring, control and automation integration.

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At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

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