TE Connectivity FIP-2/4-1 1SNA166559R0600 is a blue 2 × 4-pole ENTRELEC ESSAILEC test plug with locking and coding pins for electrical measurement, testing and protection circuits.
£54.81
The TE Connectivity FIP-2/4-1 1SNA166559R0600 is a 2 × 4-pole test plug from the established ENTRELEC ESSAILEC test block range. Designed for electrical measurement, protection and test circuits, this blue plug provides a removable multicircuit interface for compatible ESSAILEC sockets and allows engineers to connect test equipment without unnecessarily disturbing permanent panel wiring.
The FIP-2/4-1 features a short-cover 8-pole configuration arranged as two rows of four poles. It is supplied with 8 locking pins and 2 coding pins, helping provide secure mechanical retention and correct positioning within a compatible ESSAILEC installation. BRE-T contact pins are selected according to the conductor requirements of the application and are ordered separately.
With a compact body measuring approximately 63 × 44 × 115 mm and a weight of approximately 91 g, the FIP-2/4-1 provides a practical test connection for switchgear, metering panels, substations and industrial protection systems. The ESSAILEC system is designed for secondary current and voltage circuits where controlled access for commissioning, measurement and maintenance is essential.
ESSAILEC test-block systems provide controlled access to electrical measurement and protection circuits during commissioning, routine testing and maintenance. Removable plugs such as the FIP-2/4-1 allow test equipment to interface with multiple circuits through a dedicated connection point, reducing the need to disconnect or modify permanent field wiring.
The FIP-2/4-1 combines an eight-pole layout with locking and coding features that support repeatable installation in compatible ESSAILEC assemblies. Its provision for BRE-T contact pins also allows the contact arrangement to be configured for the conductors used in the application, making the plug suitable for professional power distribution, metering and protection environments.
| Manufacturer | TE Connectivity |
|---|---|
| Brand / range | ENTRELEC |
| Series | ESSAILEC |
| Model | FIP-2/4-1 |
| Manufacturer part number | 1SNA166559R0600 |
| Product type | Multicircuit test plug |
| Plug configuration | 2 × 4 poles |
| Number of poles | 8 |
| Cover type | Short cover |
| Contact type | BRE-T contact pins, ordered separately |
| Locking pins | 8 |
| Coding pins | 2 |
| Colour | Blue |
| Height | 63 mm |
| Width | 44 mm |
| Depth | 115 mm |
| Weight | approx. 91 g |
| Pack quantity | 1 |
| EAN | 3472591665598 |
The FIP-2/4-1 is a 2 × 4-pole multicircuit test plug from the TE Connectivity ENTRELEC ESSAILEC range, designed for compatible electrical measurement, testing and protection systems.
The FIP-2/4-1 has eight poles arranged as two rows of four, providing a compact multicircuit test connection.
The BRE-T contact pins are ordered separately, allowing the appropriate contacts to be selected for the conductor requirements of the installation.
Yes. The plug is supplied with 8 locking pins and 2 coding pins, helping secure the plug and provide correct positioning within a compatible ESSAILEC assembly.
The FIP-2/4-1 is typically used in metering, current and voltage transformer circuits, protection relay systems, switchgear and substation control panels where convenient access for testing and maintenance is required.
TE Connectivity ENTRELEC ESSAILEC test blocks and plugs provide a modular connection system for professional measurement, metering, commissioning and protection applications where secure, repeatable access to electrical circuits is required.
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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...