TE Connectivity PC-D-VA 1SNA166764R0300 is an ESSAILEC voltage-transformer test socket with short-circuited contacts, ring-tongue connections and base or half-base mounting for industrial metering and protection circuits.
£145.87
The TE Connectivity PC-D-VA 1SNA166764R0300 is a specialist ESSAILEC voltage-transformer test socket designed for electrical measurement, metering and protection circuits. Part of the established TE Connectivity ENTRELEC ESSAILEC series, it provides a dedicated interface for testing and maintenance of secondary voltage circuits without repeatedly disturbing permanent installation wiring.
The PC-D-VA uses short-circuited contacts and ring-tongue terminations in a base / half-base mounting configuration. This combination provides secure permanent conductor termination while allowing compatible ESSAILEC test equipment to be connected during commissioning, meter verification, protection-relay testing and routine maintenance.
The 1SNA166764R0300 is identified by its blue body and weighs approximately 115 g. Its modular design is compatible with selected ESSAILEC accessories and pre-wired test leads, making it a practical component for switchboards, protection cabinets and industrial metering installations where reliable voltage-circuit test access is required.
ESSAILEC measuring and testing blocks are designed to provide controlled access to secondary electrical circuits during commissioning, diagnostics and maintenance. In voltage-transformer applications, the PC-D-VA provides the fixed socket interface through which compatible test equipment can be connected for measurement and verification procedures.
This modular approach is particularly useful in installations containing electricity meters, measurement equipment and protection relays that require periodic inspection or testing. By providing a dedicated test interface, the ESSAILEC system helps reduce repeated manipulation of permanent wiring and supports organised, repeatable maintenance procedures.
| Manufacturer | TE Connectivity |
|---|---|
| Product family | ENTRELEC ESSAILEC |
| Model | PC-D-VA |
| Part number | 1SNA166764R0300 |
| Product type | Voltage test socket |
| Application | Voltage-transformer secondary circuits |
| Contact configuration | Short-circuited contacts |
| Connection type | Ring tongue |
| Mounting type | Base / half-base mounting |
| Colour | Blue |
| Compatible pre-wired plug | COR-P-R1-8.8 |
| Product weight | approx. 115 g |
| Pack quantity | 1 |
| Compatible system | ESSAILEC measuring and testing blocks |
| Barcode | 3472591667646 |
The PC-D-VA is an ESSAILEC test socket for voltage-transformer applications, providing convenient access to secondary voltage circuits used in electrical metering, measurement and protection systems.
The 1SNA166764R0300 uses short-circuited contacts as part of its dedicated ESSAILEC voltage-transformer test configuration.
The PC-D-VA uses ring-tongue connections, providing secure termination of the permanent secondary-circuit wiring.
The socket is designed for base / half-base mounting, allowing it to be integrated into compatible ESSAILEC panel and test-block installations.
The PC-D-VA is compatible with the COR-P-R1-8.8 pre-wired ESSAILEC plug assembly for convenient connection to external test equipment.
TE Connectivity ENTRELEC ESSAILEC test blocks provide a proven modular interface for electrical measurement, metering and protection circuits, helping engineers carry out commissioning and maintenance while minimising disturbance to permanent secondary-circuit wiring.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...