The ABB REF542 PLUS 1VCR007346 is an HMI operator panel designed for bay control and protection systems. It serves as a compact human-machine interface for medium‑voltage switchgear, featuring a clear LCD display, function keys, and LED indicators for local operation, parameter setting, status monitoring, fault indication, and control of feeder and bay units in substation automation. 

Key Features 

Dedicated REF542plus HMI: Formally designated as REF542 plus with order code 1VCR007346 (Type: G0003) on the label, engineered exclusively for ABB’s REF542plus bay/feeder protection systems in medium-voltage switchgear.

Power Supply: Label specifies 48–90 VDC with tolerance -15% / +10% (no other voltage options).

Environmental Ratings:

• Operating temperature: -10°C to +55°C (label-confirmed).

• Storage temperature: -20°C to +70°C (label-confirmed).

  Certifications: Explicitly marked CE Certified with Certificate No. 002198 (label-verified).

  Local Operation Interface: Core function includes on-site status monitoring, parameter configuration, fault indication, and manual control—standard for REF542plus HMI units.

  Legacy Spare Part: Official designation as a direct replacement for older REF542plus-based control panels (consistent with ABB’s product lifecycle data).