TE Connectivity 1SNA166643R0200 COR-C-3 is a 2-pole ENTRELEC ESSAILEC prewired current test plug with 2.5 mm² conductors, 2 m cable length and two yellow bayonet safety test plugs for electrical current measurement, protection and metering circuits.
£117.43
The TE Connectivity 1SNA166643R0200 is a specialised prewired current test plug designed for current measurement, protection relay testing and maintenance of electrical secondary circuits. Also identified as the COR-C-3, this component forms part of the established ENTRELEC ESSAILEC measuring and testing system and provides a ready-wired interface for connecting test equipment to compatible current test sockets.
The COR-C-3 incorporates a red 2-pole plug with two contact pins connected to two yellow bayonet safety test plugs. Supplied as a prewired assembly, it helps reduce test preparation and provides technicians with a convenient, repeatable connection arrangement for commissioning, measurement and maintenance procedures.
Designed for ESSAILEC current circuits, the 1SNA166643R0200 uses 2.5 mm² conductors with a 2 m cable length. The associated ESSAILEC current test system is rated at 400 V and 15 A, with a 4 kV impulse withstand voltage, making the COR-C-3 suitable for demanding protection, metering, switchgear and utility applications.
ESSAILEC current test systems provide a dedicated interface for measurement, monitoring, injection testing, commissioning and maintenance of secondary electrical circuits. Using a purpose-built plug-and-socket arrangement helps technicians access the required circuit without repeatedly disconnecting or modifying permanent field wiring.
The COR-C-3 provides this functionality in a compact prewired two-pole format. Its red current plug, 2.5 mm² conductors and yellow bayonet safety test connections make it a practical accessory for current transformer circuits, protection relays, electrical metering equipment and other systems requiring repeatable test access.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | ESSAILEC |
| Model | COR-C-3 |
| Manufacturer part number | 1SNA166643R0200 |
| Product type | Prewired current test plug |
| Plug configuration | 2 poles / 2 pins |
| Plug colour | Red |
| Test connections | 2 yellow bayonet safety test plugs |
| Conductor cross-section | 2.5 mm² |
| Cable length | 2 m |
| System rated voltage | 400 V |
| System rated current | 15 A |
| System impulse withstand voltage | 4 kV |
| System short-circuit withstand | 100 A for 5 s / 200 A for 1 s |
| System housing material | Polycarbonate |
| System conductive parts | Gold-plated |
| System pollution degree | 3 |
| System operating temperature range | -10–55 °C |
| System storage temperature range | -25–70 °C |
| Product net weight | approx. 320 g |
| EAN | 3472591666434 |
| Pack quantity | 1 |
The 1SNA166643R0200 COR-C-3 is a prewired current test plug designed to provide a convenient connection between compatible ESSAILEC current test sockets and electrical test or measurement equipment.
The COR-C-3 uses a 2-pole configuration with two contact pins and is supplied as a prewired ESSAILEC current test assembly.
The COR-C-3 is supplied with two yellow bayonet safety test plugs connected to the red two-pole current plug.
The COR-C-3 uses 2.5 mm² conductors with a cable length of approximately 2 m.
The associated ESSAILEC current test system is rated at 400 V and 15 A with an impulse withstand voltage of 4 kV.
TE Connectivity ENTRELEC ESSAILEC prewired test solutions provide structured access to electrical protection, metering and measurement circuits, combining dedicated test plugs with factory-wired connections to support efficient commissioning, diagnostics and maintenance.
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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...