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1SNA645011R2400 ABB RB121R-230VUC R600 Interface Relay 230 V AC/DC
ABB RB121R-230VUC R600 interface relay with 230 V AC/DC control supply, 1 c/o (SPDT) contact, leakage current protection and 10 mA–6 A switching range for industrial automation and control systems.
£26.32
Why Choose the ABB RB121R-230VUC R600 Interface Relay?
The ABB RB121R-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 dependable switching while incorporating built-in leakage current protection for control applications where unwanted residual current must be managed.
This interface relay features a 230 V AC/DC control supply and a single changeover contact arrangement, providing flexible switching for industrial control circuits. The integrated LED provides clear visual indication of relay operation, while the built-in leakage current protection helps prevent unintended relay operation caused by leakage current in connected control circuits.
With a 1 c/o (SPDT) output and a switching range of 5–250 V AC and 10 mA–6 A, the RB121R-230VUC is suitable for a wide range of interface and control applications. Its compact 12 mm housing enables space-efficient DIN rail 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 10 mA–6 A output range for versatile switching applications.
- Built-in leakage current protection helps prevent unwanted relay operation.
- Integrated LED status indication for straightforward relay monitoring.
- Compact 12 mm wide housing enables space-saving DIN rail installation.
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 / 10 mA–6 A output signal range.
- Built-in leakage current protection.
- Integrated LED relay status indication.
- Silver-tin-oxide AgSnO2 contact material.
- Screw terminal connection.
- Snap-on DIN rail mounting.
- Compact 12 mm wide housing.
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 compact construction for installation in industrial control panels and automation systems.
The RB121R-230VUC uses a 230 V AC/DC control supply and provides a single changeover contact with built-in leakage current protection. The integrated LED makes the operating state easy to identify, while screw terminals provide secure electrical connections. 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 | 1SNA645011R2400 | |
| Product type | Boxed interface relay | |
| Control supply voltage | 230 V AC/DC | |
| Output contact | 1 c/o (SPDT) | |
| Output signal | 5–250 V AC / 10 mA–6 A | |
| Contact material | Silver-tin-oxide (AgSnO2) | |
| Terminal type | Screw terminals | |
| Indication | Integrated LED | |
| Leakage current protection | Integrated | |
| Protection rating | IP20 | |
| Mounting type | DIN rail, snap-on mounting | |
| Width | 12 mm | |
| Dimensions (H × W × D) | 67.5 × 12 × 70 mm | |
| Weight | approx. 0.04 kg |
Frequently Asked Questions
What is the ABB RB121R-230VUC used for?
The RB121R-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 RB121R-230VUC require?
The relay operates from a 230 V AC/DC control supply.
What type of output contact does the relay have?
The RB121R-230VUC has a 1 c/o (SPDT) changeover contact for flexible switching of connected circuits.
What output load can the ABB RB121R-230VUC switch?
The relay provides an output signal range of 5–250 V AC and 10 mA–6 A.
Does the ABB RB121R-230VUC have leakage current protection?
Yes, the RB121R-230VUC includes built-in leakage current protection to help prevent unwanted relay operation caused by leakage current in the control circuit.
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.
