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1SNA645035R2400 ABB RB121P-12VDC R600 12 V DC Interface Relay 1 c/o 10 mA-6 A
ABB RB121P-12VDC R600 interface relay, order code 1SNA645035R2400, featuring a 12 V DC polarised control input, 1 c/o contact and 10 mA-6 A switching range for industrial automation and control applications.
£14.93
Why Choose the ABB RB121P-12VDC Interface Relay?
The ABB RB121P-12VDC, order code 1SNA645035R2400, is a compact R600 series interface relay designed for reliable electrical isolation and signal switching in industrial control and automation systems. Featuring a 12 V DC control supply and a single changeover contact, it provides a practical interface between control equipment and switched loads.
As part of the ABB R600 boxed interface relay range, the RB121P-12VDC combines a slim 6 mm width with screw-terminal connections, making it particularly suitable for densely populated control cabinets. The relay incorporates an LED indication function and uses a silver-tin-oxide (AgSnO2) contact material for dependable switching performance.
The RB121P-12VDC provides 1 c/o (SPDT) contact with a switching range of 10 mA–6 A and is designed for a 12 V DC polarised A1-A2 control input. Its compact DIN-rail-oriented format makes it well suited to PLC interfaces, control panels, machinery and general industrial automation applications where space-efficient relay isolation is required.
Key Advantages
- Compact ABB R600 interface relay for industrial control applications.
- 12 V DC rated control supply voltage for low-voltage control circuits.
- 1 c/o (SPDT) output contact for flexible changeover switching.
- 10 mA–6 A switching range for a wide variety of control loads.
- Ultra-slim 6 mm width helps conserve valuable control-panel space.
- Built-in LED indication provides convenient visual relay status monitoring.
Key Features
- ABB R600 boxed interface relay series.
- 12 V DC rated control supply.
- 1 c/o (SPDT) contact configuration.
- 10 mA–6 A contact switching range.
- A1-A2 polarised control input.
- Screw-terminal connections for secure field wiring.
- Silver-tin-oxide AgSnO2 contact material.
- Integrated LED indication.
- IP20 protection rating.
- Compact 6 mm-wide housing for high-density installations.
Reliable Signal Switching for Industrial Automation
Interface relays provide an important link between low-voltage control electronics and electrical loads, allowing control signals from devices such as PLCs to operate separate circuits while providing electrical isolation. The ABB RB121P-12VDC is designed to perform this function in a compact format suitable for modern industrial control panels.
The R600 series combines space-saving construction with straightforward wiring and visual status indication. With its 12 V DC polarised input, single changeover contact and screw terminals, the RB121P-12VDC can be integrated into machinery, process-control equipment and automation cabinets where reliable signal interfacing and efficient use of DIN-rail space are important.
Typical Applications
- PLC output and input interfacing.
- Industrial control and automation panels.
- Machine control circuits.
- Signal isolation and switching applications.
- Process-control equipment.
- Building automation and control systems.
- OEM machinery and production equipment.
Technical Specifications
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| Device Type | Interface Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Series | R600 | |
| ABB order code | 1SNA645035R2400 | |
| Product group | 310923 - Interface Relays & Opt. Couplers | |
| Product type | Boxed interface relay | |
| Rated control supply voltage | 12 V DC | |
| Output contacts | 1 c/o (SPDT) | |
| Switching range | 10 mA–6 A | |
| Control input | A1-A2 polarised | |
| Terminal type | Screw terminals | |
| Contact material | Silver-tin-oxide (AgSnO2) | |
| Indication | Built-in LED | |
| Protection rating | IP20 | |
| Power loss | 2 W | |
| Width | 6 mm | |
| Height | 67.5 mm | |
| Depth | 70 mm | |
| Dimensions (H × W × D) | 67.5 × 6 × 70 mm | |
| Net weight | 0.02 kg | |
| Standards | IEC, UL, CSA | |
| Reference standards | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC/EN 60947-5-1, UL 508 | |
| RoHS status | Compliant with applicable EU RoHS requirements |
Frequently Asked Questions
What is the ABB RB121P-12VDC used for?
The ABB RB121P-12VDC is an interface relay used for signal switching and electrical interfacing between control equipment, such as PLCs, and loads in industrial automation systems.
What control voltage does the RB121P-12VDC require?
The relay has a rated control supply voltage of 12 V DC, with a polarised A1-A2 input.
What contact configuration does the RB121P-12VDC have?
The RB121P-12VDC provides one changeover contact (1 c/o or SPDT), allowing the relay to switch between normally open and normally closed circuit paths.
What is the switching range of the ABB RB121P-12VDC?
The relay is designed for a contact switching range of 10 mA–6 A, making it suitable for a variety of industrial control and interface applications.
How wide is the ABB RB121P-12VDC?
The relay is only 6 mm wide, allowing high-density installation in control cabinets where DIN-rail space is limited.
Trusted Industrial Control from ABB
ABB R600 interface relays provide compact and dependable signal switching for industrial automation, machinery and control-panel applications, combining space-efficient installation with practical connection and indication features.
