1SNA645572R0000 ABB RBR121G-24VDC R600 Interface Relay 1c/o 3 mA to 6 A

1SNA645572R0000 ABB RBR121G-24VDC R600 Interface Relay 1c/o 3 mA to 6 A

ABB RBR121G-24VDC R600 interface relay with 24 V DC control supply, 1c/o changeover contact and 3 mA to 6 A switching range for industrial automation.

SKU: 1SNA645572R0000Alt SKU: BR121G-24VDCMPN: 1SNA645572R0000
Price
List Price £20.95 ex VAT
Your Price (ex VAT)
£20.95
Manufacturer Lead Time Estimated Delivery 5 weeks
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

SUBTOTAL (EX VAT) £20.95
Trade pricing is personalised to your account

Manufacturer Lead Time

£20.95

Why Choose the ABB RBR121G-24VDC Relay?

The ABB RBR121G-24VDC is a compact and reliable R600 interface relay designed for electrical isolation and dependable signal switching in industrial automation and control systems. As part of the ABB R600 interface relay and optocoupler series, it provides a practical interface between control circuits and connected electrical loads.

This relay operates from a 24 V DC control supply and provides a 1c/o changeover contact configuration with a specified switching range of 3 mA to 6 A. The compact interface format makes it suitable for PLC interfacing, machine control and industrial control panel applications.

The RBR121G-24VDC combines dependable electromechanical switching with the compact format of the ABB R600 series. Its single changeover contact provides flexible switching for industrial automation systems requiring reliable signal isolation and control.

Key Advantages

  • Compact R600 interface relay for industrial automation.
  • 24 V DC control supply for standard industrial control systems.
  • 1c/o changeover contact for flexible switching applications.
  • 3 mA to 6 A switching range.
  • Provides electrical isolation between control and switched circuits.
  • Suitable for PLC, machine control and industrial automation interfaces.
  • Compact design helps save valuable control panel space.

Key Features

  • ABB R600 interface relay and optocoupler series.
  • RBR121G-24VDC configuration.
  • 24 V DC rated control supply voltage.
  • 1c/o changeover contact.
  • 3 mA to 6 A switching range.
  • Electromechanical relay switching.
  • Electrical isolation between input and output circuits.
  • Suitable for industrial automation and PLC interfacing.
  • Compact interface relay format for control panels.

Reliable Signal Switching for Industrial Automation

Interface relays such as the ABB RBR121G-24VDC provide electrical isolation between control equipment and switched circuits while allowing a low-voltage control signal to operate an electrical load. The electromechanical contact arrangement provides a dependable and flexible switching interface for industrial control systems.

The R600 series is designed for industrial control and automation applications where dependable signal interfacing, electrical isolation and flexible switching are required. The RBR121G-24VDC combines a 24 V DC control supply with a 1c/o changeover contact and a 3 mA to 6 A switching range.

Typical Applications

  • Industrial automation and control panels.
  • PLC signal interfacing and switching.
  • Machine control systems.
  • Electrical isolation between control and field circuits.
  • Control signal switching.
  • Industrial equipment requiring compact interface relays.

Technical Specifications

Tick the specs you need, then view products that match.

Device Type Interface Relay
Switching Current (A) 6 A
Series R600
Product type Interface relay
ABB order code 1SNA645572R0000
Rated control supply voltage 24 V DC
Contact configuration 1c/o
Contact type Changeover
Switching current range 3 mA to 6 A
Output type Electromechanical relay contact

Frequently Asked Questions

What is the ABB RBR121G-24VDC used for?

The ABB RBR121G-24VDC is an R600 interface relay used for electrical isolation and switching between control circuits and connected electrical loads in industrial automation systems.

What control voltage does the RBR121G-24VDC require?

The relay operates from a 24 V DC control supply.

What contact configuration does the RBR121G-24VDC have?

The RBR121G-24VDC has a 1c/o changeover contact, providing a flexible normally open and normally closed switching arrangement.

What switching current does the RBR121G-24VDC support?

The relay has a specified switching current range of 3 mA to 6 A.

Is the RBR121G-24VDC an electromechanical relay?

Yes. The RBR121G-24VDC is an electromechanical interface relay with a 1c/o changeover contact for industrial signal switching and isolation.

Trusted by Industrial Automation Engineers

ABB R600 interface relays are designed to provide dependable electrical isolation and signal switching for industrial automation, control panels and machine applications.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

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.

What product ranges do you supply

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

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...