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1SNA645046R0700 ABB RB121R-115VUC R600 115 V AC/DC Interface Relay 1 c/o 10 mA-6 A
ABB RB121R-115VUC R600 interface relay, order code 1SNA645046R0700, featuring a 115 V AC/DC control supply, 1 c/o contact, 10 mA-6 A switching range and integrated leakage current protection for industrial automation and control applications.
£26.32
Why Choose the ABB RB121R-115VUC Interface Relay?
The ABB RB121R-115VUC, order code 1SNA645046R0700, is a compact and reliable R600 series interface relay designed for electrical isolation, signal matching and switching in industrial control and automation systems. Featuring a 115 V AC/DC control supply and a single changeover contact, it provides an effective interface between control equipment and switched electrical loads.
As part of the ABB R600 boxed interface relay range, the RB121R-115VUC features screw-terminal connections and can be snap-mounted onto a DIN rail for straightforward control-panel installation. The relay incorporates an LED for visual indication of coil energisation together with integrated leakage current protection, making it particularly useful in industrial control circuits where dependable switching and clear operating-state indication are required.
The RB121R-115VUC provides 1 c/o (SPDT) contact with a switching range of 10 mA–6 A and operates from a 115 V AC/DC rated control supply. Its robust boxed construction, silver-tin-oxide contacts and DIN-rail mounting make it suitable for PLC interfacing, machinery, process control and general industrial automation applications.
Key Advantages
- Reliable ABB R600 interface relay for industrial control and automation applications.
- 115 V AC/DC rated control supply provides compatibility with AC and DC control circuits.
- 1 c/o (SPDT) output contact provides flexible changeover switching.
- 10 mA–6 A switching range suitable for a variety of industrial control loads.
- Integrated leakage current protection for demanding control applications.
- Built-in LED indication provides clear visual indication of relay energisation.
- Screw terminals provide secure and straightforward field wiring.
Key Features
- ABB R600 boxed interface relay series.
- 115 V AC/DC rated control supply.
- 1 c/o (SPDT) contact configuration.
- 10 mA–6 A contact switching range.
- Switching voltage up to 250 V AC.
- Integrated leakage current protection.
- Built-in LED status indication.
- Screw-terminal connections for secure field wiring.
- Silver-tin-oxide AgSnO2 contact material.
- IP20 protection rating.
- DIN-rail mounting for convenient control-panel installation.
Reliable Signal Switching for Industrial Automation
Interface relays provide an important link between industrial control electronics and field loads, allowing control signals to operate separate electrical circuits while providing electrical isolation and signal matching. The ABB RB121R-115VUC is designed to perform this function in machinery, PLC systems and industrial control panels where dependable switching is essential.
The R600 series combines practical DIN-rail installation with straightforward wiring and visual status indication. With its 115 V AC/DC control input, single changeover contact, integrated leakage current protection and screw terminals, the RB121R-115VUC provides a versatile interface solution for modern industrial automation and machine-control systems.
Typical Applications
- PLC input and output interfacing.
- Industrial control and automation panels.
- Electrical isolation and signal matching.
- Machine control circuits.
- Process-control equipment.
- Industrial switching applications.
- Building automation and control systems.
- OEM machinery and production equipment.
Technical Specifications
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| Device Type | Interface Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Load Voltage | 250 V AC | |
| Mounting Type | DIN rail | |
| Series | R600 | |
| ABB order code | 1SNA645046R0700 | |
| Product group | 310923-Interface Relays & Opt. Couplers | |
| Product type | Boxed interface relay | |
| Rated control supply voltage | 115 V AC/DC | |
| Output contacts | 1 c/o (SPDT) | |
| Switching range | 10 mA–6 A | |
| Maximum switching voltage | 250 V AC | |
| Terminal type | Screw terminals | |
| Contact material | Silver-tin-oxide (AgSnO2) | |
| Indication | Built-in LED | |
| Protection function | Integrated leakage current protection | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Width | 12 mm | |
| Height | 67.5 mm | |
| Depth | 70 mm | |
| Dimensions (H × W × D) | 67.5 × 12 × 70 mm | |
| Net weight | 0.04 kg | |
| Standards | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC/EN 60947-5-1, UL 508 |
Frequently Asked Questions
What is the ABB RB121R-115VUC used for?
The ABB RB121R-115VUC is an R600 interface relay used for electrical isolation, signal matching and switching between control equipment and electrical loads in industrial automation systems.
What control voltage does the RB121R-115VUC require?
The relay operates from a rated control supply voltage of 115 V AC/DC, allowing it to be used with compatible AC or DC control circuits.
What contact configuration does the RB121R-115VUC have?
The RB121R-115VUC provides one changeover contact (1 c/o or SPDT) using silver-tin-oxide contact material.
What is the switching range of the ABB RB121R-115VUC?
The relay has a switching range of 10 mA–6 A, with switching voltage up to 250 V AC.
Does the RB121R-115VUC include leakage current protection?
Yes. The RB121R-115VUC incorporates integrated leakage current protection together with an LED that provides visual indication when the relay is energised.
Trusted Industrial Control from ABB
ABB R600 interface relays provide dependable electrical isolation, signal matching and switching for industrial automation, machinery and control-panel applications, combining practical DIN-rail installation with robust relay technology.
