ABB RB121‑115VUC Interface Relay Module • 1 C/O Contact • 115 V AC/DC Coil • Plug in Relay with LED Indicator • Screw Terminals • 6 mm Wide • IP20 • Industrial Control Relay

For your safety, it is crucial to purchase only genuine, ABB-manufactured electrical products (inclusive of those branded GE or GE by ABB and now manufactured by ABB). Counterfeit and non-authentic products may fail to meet safety standards, putting you at risk. To ensure you receive safe, reliable products, check the product description and photos and verify that the product is described as an ABB, GE, or GE by ABB product and has labels with an ABB, GE, or GE by ABB logo. Please also check the product description to see if the product has been certified by third-party certification bodies such as UL, IC and/or Intertek.ABB acquired GE's Industrial Solutions business in 2018 and continues to manufacture GE, GE by ABB, and ABB branded products under a license from GE.For warranty information, please contact the manufacturer's customer service directly. You may also be able to find warranty information on the manufacturer's website.

• INTERFACE RELAY FOR SIGNAL SWITCHING AND ISOLATION – The ABB RB121‑115VUC is a pluggable interface relay module designed to switch and isolate control signals in industrial automation, machinery, and process control applications.
• 115 V AC/DC UNIVERSAL COIL WITH LED STATUS INDICATION – This relay features a universal coil that operates on 115 V AC or DC, combined with an integrated LED indicator to provide clear visual feedback when the coil is energized.
• ONE CHANGEOVER CONTACT FOR FLEXIBLE CIRCUIT CONTROL – Equipped with a single changeover (SPDT) contact, the relay enables reliable switching between two circuits, making it suitable for interlocking, control, and monitoring functions.
• SLIM 6 MM HOUSING WITH SCREW TERMINAL CONNECTIONS – The narrow 6 mm housing saves valuable DIN‑rail space in control panels, while the screw terminal connections ensure a secure, vibration‑resistant wiring method for long‑term reliability.
• ABB: BUILT FOR RELIABILITY AND COMPLIANCE – The RB121‑115VUC is designed for long service life and dependable switching performance, meeting international IEC and UL standards for use in industrial applications worldwide.