TE Connectivity TC-DS-VL 1SNA166742R0500 is an 8 A, 400 V ESSAILEC voltage test socket with screw-clamp connections for industrial metering, voltage measurement and protection circuits.
£116.72
The TE Connectivity TC-DS-VL 1SNA166742R0500 is a professional ESSAILEC voltage test socket designed for voltage measurement, transformer secondary circuits, metering and protection-system testing. Part of the established TE Connectivity ENTRELEC ESSAILEC series, it provides a secure test interface for electrical commissioning, diagnostics and maintenance applications.
The TC-DS-VL features a socket contact arrangement with reliable screw-clamp connections and is designed for base or half-base mounting. Its modular construction allows compatible ESSAILEC test plugs to be connected to installed voltage circuits without unnecessarily disturbing permanent panel wiring, helping simplify repetitive testing and servicing procedures.
Rated for 8 A and 400 V, the 1SNA166742R0500 is suitable for demanding industrial electrical environments. It offers a rated impulse withstand voltage of 4 kV and an operating ambient temperature range of -25 to +70 °C, making it a dependable choice for switchboards, metering panels and protection installations.
ESSAILEC measuring and testing components provide an organised way to access voltage circuits during commissioning, measurement, relay testing and maintenance. The TE Connectivity TC-DS-VL acts as the fixed socket interface within the system, allowing compatible test plugs and accessories to be connected when electrical measurements or diagnostic procedures are required.
By providing dedicated test access, the socket helps technicians avoid repeatedly disconnecting permanent panel conductors. This supports efficient servicing of meters, protection relays and voltage-transformer secondary circuits while maintaining a neat and modular electrical installation.
| Manufacturer | TE Connectivity |
|---|---|
| Product family | ENTRELEC ESSAILEC |
| Model | TC-DS-VL |
| Part number | 1SNA166742R0500 |
| Product type | Voltage test socket |
| Contact type | Socket |
| Rated current | 8 A |
| Rated voltage | 400 V |
| Rated impulse withstand voltage | 4 kV |
| Connection type | Screw clamp |
| Mounting configuration | Base / half-base mounting |
| Ambient temperature | -25 to +70 °C |
| Pollution degree | 3 |
| DIN rail compatibility | G32 and TH35 mounting rails |
| Compatible system | ESSAILEC measuring and testing system |
| Pack quantity | 1 |
| EAN | 3472591667424 |
The 1SNA166742R0500 is an ESSAILEC voltage test socket used to provide convenient test access to voltage measurement, transformer secondary, metering and protection circuits.
The TC-DS-VL has a rated current of 8 A, a rated voltage of 400 V and a rated impulse withstand voltage of 4 kV.
The socket uses screw-clamp electrical connections, providing secure termination for permanent panel wiring.
The socket is specified for an ambient operating temperature range of -25 to +70 °C.
It is typically installed in switchboards, metering panels, protection cabinets and substation systems where reliable access to voltage measurement circuits is required for testing and maintenance.
TE Connectivity ENTRELEC ESSAILEC components provide a proven modular interface for electrical measurement and testing, helping engineers carry out commissioning, diagnostics and maintenance efficiently across industrial metering and protection systems.
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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...