Mitsubishi Electric Y-5 5A Adapter | Relay Test Terminal & CT Connector Module

Streamline your electrical protection testing and diagnostic procedures with the genuine Mitsubishi Electric 5A Adapter Y-5. Designed specifically for power distribution systems and industrial substation maintenance, this highly specialized adapter unit serves as a precision interface module for testing protection relays, monitoring circuits, and current transformer (CT) secondary loops safely and efficiently.

The unit is housed in a rugged, portable benchtop enclosure equipped with a heavy-duty metallic top carrying handle for field utility use. The front panel features a dedicated, secure TEST TERMINAL interface block directly paired with a heavy-duty CT CONNECTOR to bridge external current measurement infrastructure. A multi-position rotational dial switch allows seamless switching across phase lines (S1, S2, S3, S), complemented by a dedicated, physical TRIP CHECK pushbutton mechanism to verify active breaker control loops.

The integrated electrical parameter matrix printed directly on the unit ensures exact signal calibration during multi-frequency system diagnostics:

• Input Current Specification: 5A AC (Nominal current transformer secondary rating)

• Voltage Signal Output (50Hz): 141mV AC

• Voltage Signal Output (60Hz): 170mV AC

• Test Power Rating: 30V DC

• Power Current Parameter: 0.4A AC

Product Details

• Brand: Mitsubishi Electric

• Model Number: 5A ADAPTER Y-5

• Device Type: Secondary Injection Relay Test Adapter / CT Interface Module

• Phase Selectors: 4-Position Rotational Switch (S1 / S2 / S3 / S)

• Interface Connectors: Heavy-duty Blue Test Terminal & CT Secondary Connector Blocks

• Manual Controls: Integrated Trip Check Verification Pushbutton

• Enclosure Type: Industrial metal chassis with integrated transport handle