ABB SPAU 330 C1-AA Voltage Relay

Product Description

The ABB SPAU 330 C1-AA is an advanced voltage relay specifically designed for medium and high voltage systems. It is a key component of ABB’s SPACOM protection relay series. Offering protection against overvoltage, undervoltage, and residual voltage, this device also allows for precise phase-to-phase and phase-to-ground voltage measurement. With programmable logic functions, it provides increased protection flexibility. Additionally, it boasts self-supervision capabilities to ensure reliable operation. The relay is suitable for industrial power distribution networks, substations, and utility grids, and features LED indicators for status, alarm, and trip conditions. 

Technical Specifications of ABB SPAU 330 C1-AA

• Rated auxiliary voltage: 80–265 V AC / 80–350 V DC

• Rated frequency: 50/60 Hz

• Rated input voltage: 100 V / √3 or 110 V / √3

• Measuring range: 0–200% of rated voltage

• Overvoltage protection: 59 stage

• Undervoltage protection: 27 stage

• Residual voltage protection: 59N stage

• Operate time: Typically <40 ms

• Accuracy: ±1% of measured value

• Communication interface: RS-485 with SPA-bus protocol

• Mounting: Flush-mounted

• Operating temperature: -10°C to +55°C

• Storage temperature: -40°C to +70°C

• Degree of protection: IP54 (front panel), IP20 (rear side)

• Weight: Approx. 2.5 kg