1sna167935r1000 – cor-t-4-4 essailec connector

Why Choose the TE Connectivity COR-T-4-4 1SNA167935R1000 ESSAILEC Pre-Wired Voltage Plug?

The TE Connectivity / ENTRELEC COR-T-4-4 1SNA167935R1000 is a 4-pole pre-wired voltage plug from the ESSAILEC measuring and testing block range. Designed for voltage transformer applications, it provides a ready-to-use connection between compatible ESSAILEC voltage sockets and external test or measurement equipment.

The COR-T-4-4 incorporates a grey 4-pin plug configured for insertion positions 01-02-03-04, together with four black Ø4 mm test plugs. The assembly uses 2.5 mm² conductors and a pre-wired cable approximately 2 m long, reducing the amount of field wiring required when preparing test connections.

Rated at 400 V with a 15 A main-circuit rated current, the COR-T-4-4 is designed for professional protection, metering and commissioning environments. Its pre-assembled contact pins, coding, cables and test plugs provide a convenient ESSAILEC solution for test operations involving voltage transformer secondary circuits.

Key Advantages

• Pre-wired 4-pole voltage plug supplied ready for ESSAILEC test applications.
• Designed specifically for voltage transformer secondary circuits.
• Includes four black Ø4 mm test plugs for connection to test equipment.
• 2.5 mm² conductors provide a robust pre-wired connection.
• Approximately 2 m cable length provides practical reach between the test block and equipment.
• Contact pins, coding, cables and test plugs are pre-assembled to simplify test operations.

Key Features

• TE Connectivity / ENTRELEC ESSAILEC measuring and testing system.
• COR-T-4-4 pre-wired voltage plug.
• 4-pole / 4-pin plug configuration.
• Grey plug body with 01-02-03-04 insertion design.
• Four Ø4 mm black test plugs.
• 2.5 mm² conductor cross-section.
• Pre-wired cable length approximately 2 m.
• 400 V rated voltage.
• 15 A main-circuit rated current.
• 4 kV rated impulse withstand voltage.
• 800 A for 1 s rated short-time withstand current.
• Polycarbonate insulation material.

Ready-to-Use Connectivity for Voltage Transformer Testing

ESSAILEC measuring and testing blocks provide a dedicated interface for test operations on secondary circuits associated with voltage transformers, meters and protection equipment. The COR-T-4-4 combines the compatible ESSAILEC plug, contact pins, coding, wiring and external test connections into a pre-wired assembly, helping technicians establish the required test interface without assembling an individual lead from separate components.

The four Ø4 mm test plugs provide connections on the test-equipment side, while the four-pole ESSAILEC plug interfaces with compatible voltage sockets. The manufacturer specifies that pre-wired test leads should be connected to the test equipment before the ESSAILEC pre-wired plug is inserted into its socket.

Typical Applications

• Voltage transformer secondary circuit testing.
• Protection relay testing and commissioning.
• Electrical meter testing and calibration.
• Switchgear and switchboard test systems.
• Protection and control panels.
• Electrical measurement systems.
• Power distribution commissioning.
• Industrial and utility maintenance operations.