TE Connectivity 1SNA166877R2500 FIDE-2/4 is an orange ESSAILEC 2×4-pole test plug with a short cover, two coding pins and eight locking pins for voltage transformer testing and measurement applications.
£54.81
The TE Connectivity 1SNA166877R2500, also identified as FIDE-2/4, is a specialised ESSAILEC 2x4-pole test plug designed for voltage transformer measurement, testing and protection applications. Part of the established TE Connectivity / Entrelec ESSAILEC test block range, it provides a reliable removable connection interface for compatible voltage transformer test sockets used in electrical distribution and protection systems.
The FIDE-2/4 features an orange 2x4-pole configuration with a short cover and is supplied with two COP-FI-1 coding pins and eight locking pins. The coding system helps ensure correct mating with compatible ESSAILEC sockets, while the locking arrangement provides a secure mechanical connection during testing, commissioning and maintenance operations.
With a weight of approximately 91 g, the 1SNA166877R2500 provides a compact test connection solution for instrument transformer circuits. Contact pins from the compatible BRE-T range are ordered separately, allowing the plug to be configured for the conductor and connection requirements of the application.
ESSAILEC test plugs provide a dedicated removable interface for accessing instrument transformer circuits during electrical testing and maintenance. By mating with compatible ESSAILEC sockets, the FIDE-2/4 enables technicians to establish organised test connections for voltage transformer measurement, protection, commissioning and diagnostic applications.
The FIDE-2/4 combines an eight-pole arrangement with mechanical locking and coding features to support reliable connection within ESSAILEC installations. Its separately specified BRE-T contact pins provide flexibility when configuring the plug, making it suitable for protection panels, metering systems, switchgear and substation equipment.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | ESSAILEC Test Blocks |
| Model | FIDE-2/4 |
| Manufacturer part number | 1SNA166877R2500 |
| Product type | ESSAILEC test plug |
| Application | Voltage transformer test circuits |
| Number of poles | 8 |
| Pole configuration | 2x4 |
| Colour | Orange |
| Cover type | Short cover |
| Coding pins | 2 × COP-FI-1 supplied |
| Locking pins | 8 supplied |
| Contact pins | BRE-T series, ordered separately |
| Compatible socket | DEO-E-VA |
| Weight | approx. 91 g |
| Pack quantity | 1 |
| EAN | 3472591668773 |
The 1SNA166877R2500 is an ESSAILEC 2x4-pole test plug designed for voltage transformer measurement, testing, commissioning and protection applications.
The FIDE-2/4 has eight poles arranged in a 2x4 configuration.
The FIDE-2/4 is supplied with two COP-FI-1 coding pins and eight locking pins. The BRE-T contact pins required for electrical termination are ordered separately.
The FIDE-2/4 is designed for use with compatible ESSAILEC sockets including the DEO-E-VA and DEO-D-VA.
The FIDE-2/4 is typically used in voltage transformer circuits within switchgear, substations, metering panels and protection systems requiring convenient access for electrical testing and maintenance.
TE Connectivity / Entrelec ESSAILEC test blocks and plugs provide specialised connection solutions for instrument transformer, metering and protection circuits where reliable test access, secure connections and efficient maintenance are essential.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...