1sna166630r0100 – pc-e-va-8-8

Why Choose the TE Connectivity 1SNA166630R0100 PC-E-VA-8.8 Polarity Test Socket?

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.

Key Advantages

• Purpose-built ESSAILEC polarity test socket for measurement, calibration and distribution applications.
• Make-before-break principle automatically shorts the circuit during compatible plug insertion.
• Circuit automatically closes again when the test plug is removed.
• 8.8 precoding helps maintain the correct test interface configuration.
• Blue coding provides clear identification for polarity circuits.
• 400 V, 8 A main-circuit ratings.
• High 800 A for 1 s short-time withstand capability.
• Accommodates flexible conductors up to 10 mm².

Key Features

• TE Connectivity / ENTRELEC ESSAILEC measuring and testing component.
• PC-E-VA-8.8 product designation.
• Polarity test socket with short-circuited contacts.
• Flush mounting configuration.
• Ring-tongue conductor connection.
• Supplied with cover and 8.8 precoding.
• Blue insulating body for polarity circuit identification.
• 400 V rated voltage.
• 8 A rated current.
• 4 kV impulse withstand voltage.
• 800 A short-time withstand current for 1 s.
• Flexible conductor capacity from 0.34–10 mm².
• Compatible with dedicated ESSAILEC polarity test plugs.

Safe Make-Before-Break Testing for Secondary Circuits

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.

Typical Applications

• Secondary circuit measurement and calibration.
• Polarity testing circuits.
• Voltage transformer secondary circuits.
• Electrical metering and monitoring systems.
• Protection relay and test panels.
• Switchgear testing and commissioning systems.
• Substation control and instrumentation panels.
• Compatible ENTRELEC ESSAILEC test assemblies.