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1SNA645005R0700 ABB RB121G-24VUC R600 Interface Relay 24 V AC/DC
ABB RB121G-24VUC R600 interface relay with 24 V AC/DC control supply, 1 c/o (SPDT) output and 3 mA to 6 A switching capability for industrial control and automation systems.
£12.42
Why Choose the ABB RB121G-24VUC Interface Relay?
The ABB RB121G-24VUC is a compact and reliable interface relay designed for electrical isolation, signal matching and switching applications in industrial control and automation systems. As part of the ABB R600 interface relay series, it provides a space-saving solution for interfacing control circuits with electrical loads.
This relay combines a slim 6 mm housing with screw terminal connections and an integrated LED for clear visual indication of relay operation. The gold-plated contacts are designed for reliable switching of low-level signals as well as higher-current loads, making the RB121G-24VUC suitable for a wide range of industrial interface applications.
With a 24 V AC/DC control supply and a 1 c/o (SPDT) output contact rated for switching loads from 3 mA up to 6 A, the RB121G-24VUC is well suited to PLC interfaces, machine control systems and DIN rail mounted automation equipment.
Key Advantages
- Compact R600 interface relay for industrial control applications.
- 24 V AC/DC control supply for common industrial control circuits.
- 1 c/o (SPDT) output contact provides flexible changeover switching.
- 3 mA to 6 A switching range suitable for low-level signals and higher-current loads.
- Gold-plated contacts support reliable switching of low-level signals.
- Slim 6 mm housing helps maximise control panel space.
Key Features
- ABB R600 interface relay series.
- RB121G-24VUC relay type.
- 24 V AC/DC rated control supply.
- 1 c/o (SPDT) output contact.
- 3 mA to 6 A output switching range.
- 5–250 V AC output signal range.
- Gold-plated AgSnO2/Au contact material.
- Integrated LED indication.
- Screw terminal connections for secure wiring.
- DIN rail mounting for straightforward control panel installation.
Reliable Interface Switching for Industrial Automation
Interface relays such as the ABB RB121G-24VUC provide electrical isolation and signal interfacing between control equipment and field devices. By using a relay contact between the control circuit and switched load, the relay can help separate control signals from the circuit being operated while providing flexible changeover switching.
The ABB R600 series is designed for compact installation in industrial control panels and automation systems. Its 6 mm housing, screw terminals, integrated LED and gold-plated contacts make the RB121G-24VUC suitable for applications requiring reliable switching of both low-level signals and higher-current loads.
Typical Applications
- PLC and controller interface circuits.
- Industrial automation and control panels.
- Electrical signal isolation and matching.
- Machine control systems.
- Industrial switching and monitoring circuits.
- Low-level signal switching applications.
- DIN rail mounted control cabinets and automation equipment.
Technical Specifications
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| Device Type | Interface Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | DIN rail | |
| Series | R600 | |
| ABB order code | 1SNA645005R0700 | |
| Product group | 310923 - Interface Relays & Opt. Couplers | |
| Product type | Interface relay | |
| Function | Boxed interface relay R600 | |
| Rated control supply voltage | 24 V AC/DC | |
| Output | 1 c/o (SPDT) contact | |
| Output signal | 5–250 V AC / 3 mA–6 A | |
| Contact material | Silver-tin-oxide gold plated (AgSnO2/Au) | |
| Terminal type | Screw terminals | |
| Mounting type | DIN rail mounting | |
| Status indication | Integrated LED | |
| Protection rating | IP20 | |
| Width | 6 mm | |
| Height | 67.5 mm | |
| Depth | 70 mm | |
| Weight | approx. 0.02 kg |
Frequently Asked Questions
What is the ABB RB121G-24VUC used for?
The ABB RB121G-24VUC is an interface relay used for electrical isolation, signal matching and switching applications in industrial automation and control systems.
What control voltage does the RB121G-24VUC require?
The relay operates from a 24 V AC/DC control supply.
What type of output contact does the relay have?
The RB121G-24VUC has a 1 c/o (SPDT) changeover contact suitable for flexible switching applications.
What current can the ABB RB121G-24VUC switch?
The relay has a specified switching range of 3 mA to 6 A, with an output signal range of 5–250 V AC.
How is the ABB RB121G-24VUC installed?
The relay uses screw terminals for electrical connections and is designed for compact DIN rail mounting within industrial control panels.
Trusted by Industrial Automation Engineers
ABB R600 interface relays provide compact and reliable switching, isolation and signal matching for industrial automation, control panels and electrical equipment.
