TE Connectivity 1SNA166630R0100 PC-E-VA-8.8 is a blue 400 V 8 A ESSAILEC flush-mounted polarity test socket with short-circuited make-before-break contacts, ring-tongue connections and 8.8 precoding.
£165.14
The TE Connectivity 1SNA166630R0100 is a PC-E-VA-8.8 polarity test socket from the ENTRELEC ESSAILEC measuring and testing range. Designed for measurement, calibration and distribution applications, this blue socket incorporates short-circuited contacts and a make-before-break operating principle for safe testing of compatible secondary electrical circuits.
The PC-E-VA-8.8 is a flush-mounted, ring-tongue connection socket supplied with a cover and 8.8 precoding. When a compatible test plug is inserted, the circuit is automatically shorted before the normal connection is interrupted; when the plug is removed, the circuit automatically closes again. This sequence is particularly valuable in test installations where controlled circuit continuity is essential.
Rated at 400 V and 8 A, the socket provides a short-time withstand current of 800 A for 1 s and a rated impulse withstand voltage of 4 kV. Its main-circuit connection accepts flexible conductors from 0.34–10 mm², while the blue coding identifies it for polarity circuits within the ESSAILEC system.
The ESSAILEC system provides dedicated plug-and-socket interfaces for testing secondary electrical circuits associated with transformers, meters, protection equipment and instrumentation. In the PC-E-VA-8.8, the make-before-break contact sequence automatically establishes the required short circuit as the compatible plug is inserted and restores the normal circuit when it is removed, reducing the need for separate manually operated switching elements.
The TE Connectivity PC-E-VA-8.8 combines this automatic contact sequence with 8.8 precoding, a blue polarity identification scheme and ring-tongue connections accepting conductors up to 10 mm². Its flush-mounted design makes it suitable for integration into dedicated test panels, switchgear, protection systems and industrial electrical equipment.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | ESSAILEC |
| Model | PC-E-VA-8.8 |
| Part number | 1SNA166630R0100 |
| Product type | Polarity test socket |
| Contact state | Short-circuited contacts |
| Operating principle | Make before break |
| Application | Measurement, calibration and distribution |
| Manufacturer function | Voltage transformer application |
| Mounting | Flush mounting |
| Connection type | Ring-tongue |
| Precoding | 8.8 |
| Colour | Blue |
| Rated voltage | 400 V |
| Rated current | 8 A |
| Rated impulse withstand voltage | 4 kV |
| Rated short-time withstand current | 800 A for 1 s |
| Flexible conductor capacity | 1 × 0.34–10 mm² |
| Width | 50 mm |
| Height | 74 mm |
| Depth | 57 mm |
| Product net weight | 200 g |
| Pack quantity | 1 |
| EAN | 3472591666304 |
| Customs tariff number | 85369010 |
| Technical data document | 1SNC169001C0211 |
| Instruction document | 1SNC169001C0210 |
The 1SNA166630R0100 is a PC-E-VA-8.8 ESSAILEC polarity test socket with short-circuited contacts, flush mounting, ring-tongue connections and 8.8 precoding.
The circuit is automatically shorted as the compatible plug is inserted before the normal circuit is broken, and it automatically closes again when the plug is removed. This provides a controlled test connection without requiring a separate manually operated shorting element.
The socket is rated at 400 V and 8 A, with a 4 kV impulse withstand voltage and a short-time withstand current of 800 A for 1 s.
The main-circuit ring-tongue connection is specified for a flexible conductor capacity of 1 × 0.34–10 mm².
Within this ESSAILEC configuration, blue coding identifies polarity circuits, helping distinguish the socket from interfaces intended for other circuit functions.
TE Connectivity ENTRELEC ESSAILEC products provide purpose-built interfaces for electrical measurement, calibration, testing and protection systems, helping engineers carry out structured commissioning and maintenance operations across switchgear, substations and industrial power installations.
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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...