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1SNA645008R1200 ABB RB121G-230VUC R600 Interface Relay 230 V AC/DC
ABB RB121G-230VUC R600 interface relay with 230 V AC/DC control supply, 1 c/o (SPDT) contact and 5–250 V AC / 3 mA–6 A switching range for industrial automation and control systems.
£15.43
Why Choose the ABB RB121G-230VUC R600 Interface Relay?
The ABB RB121G-230VUC is a compact and reliable boxed interface relay designed for electrical isolation, signal amplification and signal matching in industrial control and automation systems. As part of the ABB R600 interface relay series, it provides a practical solution for switching electrical loads from control signals while occupying only 6 mm of DIN rail space.
This interface relay features a 230 V AC/DC control supply and a single changeover contact arrangement, providing flexible switching for industrial control circuits. Screw terminals provide secure electrical connections, while the integrated LED gives a clear visual indication when the relay is energised.
With a 1 c/o (SPDT) output rated for switching signals from 5–250 V AC and 3 mA–6 A, the RB121G-230VUC is suitable for a wide range of interface and control applications. Its slim 6 mm housing enables high-density installation within electrical control panels and automation cabinets.
Key Advantages
- Compact R600 boxed interface relay for industrial control applications.
- 230 V AC/DC rated control supply for high-voltage control circuits.
- 1 c/o (SPDT) changeover contact for flexible circuit switching.
- 5–250 V AC and 3 mA–6 A output range for versatile switching applications.
- Integrated LED status indication for straightforward relay monitoring.
- 6 mm wide housing enables space-saving DIN rail installation.
- Gold-plated contacts support reliable switching of low-current signals.
Key Features
- ABB R600 boxed interface relay series.
- 230 V AC/DC control supply voltage.
- 1 c/o (SPDT) output contact.
- 5–250 V AC / 3 mA–6 A output signal range.
- Gold-plated AgSnO2/Au contact material.
- Integrated LED relay status indication.
- Screw terminal connection.
- Snap-on DIN rail mounting.
- Compact 6 mm wide housing.
- IP20 protection rating.
Reliable Interface Switching for Industrial Automation
Interface relays provide electrical separation between control systems and connected field devices, helping protect sensitive control equipment while allowing signals to operate external circuits. The ABB R600 series combines this functionality with a compact design intended for high-density industrial installations.
The RB121G-230VUC uses a 230 V AC/DC control supply and provides a single changeover contact. Its integrated LED makes the operating state easy to identify, while the screw terminal connection provides a secure interface for control and switched circuits. The relay can be snap-mounted onto a DIN rail within control panels and automation cabinets.
Typical Applications
- Industrial automation and control panels.
- PLC input and output interfacing.
- Electrical isolation between control and field circuits.
- Signal amplification and signal matching.
- Machine control systems.
- Manufacturing and process automation equipment.
- DIN rail mounted electrical control assemblies.
Technical Specifications
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| Device Type | Interface Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | DIN rail | |
| Series | R600 | |
| ABB order code | 1SNA645008R1200 | |
| Product type | Boxed interface relay | |
| Control supply voltage | 230 V AC/DC | |
| Output contact | 1 c/o (SPDT) | |
| Output signal | 5–250 V AC / 3 mA–6 A | |
| Contact material | Silver-tin-oxide with gold plating (AgSnO2/Au) | |
| Terminal type | Screw terminals | |
| Indication | Integrated LED | |
| Protection rating | IP20 | |
| Mounting type | DIN rail, snap-on mounting | |
| Width | 6 mm | |
| Dimensions (H × W × D) | 67.5 × 6 × 70 mm | |
| Weight | approx. 0.02 kg | |
| Standards | IEC/EN 60947-5-1, UL 508, CAN/CSA C22.2 No. 14 | |
| RoHS status | In accordance with applicable EU requirements |
Frequently Asked Questions
What is the ABB RB121G-230VUC used for?
The RB121G-230VUC is an interface relay used for electrical isolation, signal amplification and signal matching in industrial control and automation systems.
What control voltage does the ABB RB121G-230VUC require?
The relay operates from a 230 V AC/DC control supply.
What type of output contact does the relay have?
The RB121G-230VUC has a 1 c/o (SPDT) changeover contact for flexible switching of connected circuits.
What output load can the ABB RB121G-230VUC switch?
The relay provides an output signal range of 5–250 V AC and 3 mA–6 A.
How is the ABB RB121G-230VUC installed?
The relay uses screw terminals for electrical connections and can be snap-mounted onto a DIN rail inside electrical control panels and automation cabinets.
Trusted by Industrial Automation Engineers
ABB R600 interface relays provide compact and dependable signal isolation, amplification and switching for industrial automation, machine control and electrical panel applications.
