1sna166936r1000 – current test plug 2 x 4 pole

Why Choose the TE Connectivity FIC-2/4-2 1SNA166936R1000 Current Test Plug?

The TE Connectivity FIC-2/4-2 1SNA166936R1000 is a professional 2 × 4-pole current test plug designed for use with compatible sockets in the Entrelec ESSAILEC® current transformer testing range. Developed for safe and reliable access to current transformer secondary circuits, it provides a practical connection interface for protection relay testing, meter calibration, measurement and electrical maintenance applications.

The FIC-2/4-2 features a 2 × 4-pole configuration with a long cover and is supplied with two COP-FI-1 coding pins and eight locking pins. BRE-C contact pins are selected separately, allowing the plug to be configured for the conductor and wiring requirements of the installation. Dedicated coding helps distinguish current circuits from other ESSAILEC applications and reduces the risk of incorrect connections.

Designed for the ESSAILEC current range, the 1SNA166936R1000 supports the system's make-before-break principle when used with the appropriate current test socket. This is particularly important in current transformer secondary circuits, where an open secondary can generate hazardous induced voltages. The plug is rated for applications up to 15 A and 400 V and has compact dimensions of approximately 63 × 44 × 122 mm.

Key Advantages

• Professional 2 × 4-pole current test plug for ESSAILEC systems.
• Designed specifically for current transformer secondary circuit testing.
• Supports the ESSAILEC make-before-break testing principle with compatible current sockets.
• Supplied with two COP-FI-1 coding pins and eight locking pins.
• Long-cover design provides a practical housing for test connections.
• Suitable for protection relay testing, meter calibration and electrical measurement applications.

Key Features

• TE Connectivity / Entrelec ESSAILEC® current range.
• FIC-2/4-2 current test plug.
• 2 × 4-pole configuration.
• 15 A current rating.
• 400 V voltage rating.
• Long cover configuration.
• Supplied with 2 coding pins.
• Supplied with 8 locking pins.
• BRE-C contact pins ordered separately.
• Designed for compatible ESSAILEC current transformer test sockets.

Safe and Reliable Current Transformer Testing

Current transformer secondary circuits require particular care during testing because opening the secondary circuit while the primary is energised can produce dangerously high induced voltages. The ESSAILEC current testing system is designed around a make-before-break principle, automatically short-circuiting compatible current circuits during plug insertion before the test path is established and restoring the normal circuit when the plug is removed.

The FIC-2/4-2 provides a dedicated interface for this testing architecture. Its 2 × 4-pole layout enables multiple connections through one plug, while coding and locking pins help ensure secure and correctly identified connections. This makes it particularly useful for protection relay testing, meter calibration and network measurement applications involving current transformer secondary circuits.

Typical Applications

• Current transformer secondary circuit testing.
• Protection relay testing in control and relay panels.
• Electricity meter testing and calibration.
• Electrical measurement and monitoring systems.
• Data acquisition for electrical network analysis.
• Switchgear commissioning, diagnostics and maintenance.