ABB SPAU330 C1-AA Voltage Relay

Overview

The ABB SPAU330 C1-AA is a voltage relay designed for substation voltage protection. It supervises phase-to-phase voltages for overvoltage and undervoltage conditions. Additionally, it monitors residual voltage and records fault events. With robust self-supervision and a fiber-optic communication interface, it ensures reliable operation in demanding environments. The compact, IP54-rated aluminum housing protects the device in harsh industrial settings.

Technical Specifications

• Model Number: SPAU330 C1-AA

• Type: Voltage Relay

• Manufacturer: ABB

• Application: Substation voltage supervision and protection

• Operating Frequency: 50 Hz

• Input Voltage Range: 80–265V DC/AC

• Protection Functions:

• Overvoltage supervision

• Undervoltage supervision

• Residual voltage monitoring

• Fault event recording

• Communication Interface: Serial interface via fiber-optic bus

• Self-Supervision: Continuous hardware and software monitoring

• Optional Features:

• Disturbance recorder module

• Local numerical display

• Housing: Aluminum case, IP54 rated

• Operating Temperature: -25°C to +60°C

• Storage Temperature: -40°C to +70°C

• Weight: 6.3 kg