1sna166890r2700 – pc-e-c4a-8,8

Why Choose the TE Connectivity PC-E-C4A-8.8 ESSAILEC Polarity Test Socket?

The TE Connectivity PC-E-C4A-8.8 1SNA166890R2700 is an industrial ESSAILEC polarity test socket designed for electrical testing, measurement and maintenance within secondary protection and metering circuits. Part of the established TE Connectivity / ENTRELEC ESSAILEC measuring and testing range, it provides a dedicated plug-in interface for engineers working with meters, protection relays and associated measurement systems.

The PC-E-C4A-8.8 features a shunted contact configuration, flush mounting and clip connection technology. It is supplied with a protective cover and incorporates 8.8 coding, helping prevent connection errors between differently coded ESSAILEC test circuits while supporting straightforward identification during commissioning and maintenance.

Rated at 8 A and 400 V, the PC-E-C4A-8.8 has compact dimensions of approximately 50 mm wide × 74 mm high × 40 mm deep and a net weight of approximately 170 g. Its blue housing and modular ESSAILEC construction make it suitable for switchgear, substations, relay panels and industrial metering installations.

Key Advantages

• Purpose-designed ESSAILEC polarity test socket for secondary electrical circuits.
• Shunted contact configuration for controlled testing and measurement operations.
• 8 A rated current and 400 V rated voltage.
• Flush-mounting design for neat integration into panel assemblies.
• Clip connection technology supports efficient electrical wiring.
• Supplied with a protective cover.
• 8.8 coding helps prevent incorrect connection between different test circuits.

Key Features

• TE Connectivity / ENTRELEC ESSAILEC series.
• PC-E-C4A-8.8 model designation.
• Polarity socket for measuring and testing systems.
• Shunted configuration.
• Flush mounting.
• Clip electrical connection.
• 8.8 coding configuration.
• Blue identification colour.
• Supplied with protective cover.
• Designed for modular ESSAILEC test systems.

Reliable Polarity Testing with the ESSAILEC System

ESSAILEC test blocks are designed to simplify current and voltage measurement, monitoring, injection, commissioning, repair and replacement operations involving meters and protection relays in secondary transformer and sensor circuits. The plug-and-socket architecture gives engineers repeatable access to test circuits while reducing the need to disturb permanent panel wiring.

The PC-E-C4A-8.8 combines a shunted polarity socket with flush mounting, clip connectivity and an 8.8 coded interface. Coding between ESSAILEC plugs and sockets helps reduce the risk of cross-connection between different circuits, while the protective cover helps protect the socket when the test interface is not in use.

Typical Applications

• Protection relay testing and commissioning.
• Electrical metering and measurement circuits.
• Secondary transformer and sensor circuits.
• Substation protection and control panels.
• Switchgear and distribution assemblies.
• Industrial instrumentation systems.
• Meter and protection relay maintenance or replacement.