TE Connectivity FIT-2/1-1 1SNA166821R1500 is a grey 2-pole ESSAILEC voltage test plug supplied with 2.5 mm² BRE-T-2.5 contact pins for industrial voltage transformer testing, measurement and commissioning applications.
£29.65
The TE Connectivity FIT-2/1-1 1SNA166821R1500 is a professional 2-pole voltage test plug designed for use with compatible sockets in the Entrelec ESSAILEC® measuring and testing range. Developed for voltage transformer applications, it provides engineers and maintenance personnel with a convenient interface for electrical testing, measurement and commissioning in industrial control, protection and metering systems.
The FIT-2/1-1 is supplied with 2.5 mm² BRE-T-2.5 contact pins and does not include coding pins. Its compact grey housing provides a practical test connection for compatible ESSAILEC voltage sockets, helping technicians access electrical circuits without unnecessarily disturbing permanent panel wiring.
With a 2-pole configuration and compact dimensions of approximately 51 mm high, 8.8 mm wide and 65 mm deep, the 1SNA166821R1500 is well suited to professional test equipment and industrial electrical installations. Its dedicated ESSAILEC design ensures compatibility with a wide selection of voltage sockets from the same measuring and testing system.
Voltage test plugs provide engineers with a convenient method of connecting measuring and test equipment to instrument transformer circuits. Used with a compatible ESSAILEC socket, the FIT-2/1-1 helps simplify diagnostic, commissioning and maintenance procedures while reducing the need to disconnect or modify permanent electrical wiring.
The ESSAILEC range is designed around a modular plug-and-socket approach for professional measurement and testing applications. The FIT-2/1-1 provides two poles with pre-fitted 2.5 mm² contact pins, making it a compact and practical accessory for compatible voltage sockets used in switchgear, protection, metering and industrial control equipment.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | ESSAILEC® |
| Model | FIT-2/1-1 |
| Manufacturer part number | 1SNA166821R1500 |
| Product type | Voltage test plug |
| Application | Voltage transformer testing and measurement |
| Number of poles | 2 |
| Contact type | BRE-T-2.5 contact pins |
| Contact size | 2.5 mm² |
| Coding pins | Not supplied |
| Colour | Grey |
| Height | 51 mm |
| Width | 8.8 mm |
| Depth | 65 mm |
| Weight | approx. 30 g |
| Pack quantity | 1 |
| Customs tariff number | 85369010 |
| EAN | 3472591668216 |
The 1SNA166821R1500 is a 2-pole ESSAILEC voltage test plug designed to connect test and measurement equipment to compatible voltage sockets used in industrial electrical systems.
The TE Connectivity / Entrelec model designation is FIT-2/1-1.
The FIT-2/1-1 has a 2-pole configuration for voltage testing and measurement applications.
Yes. The FIT-2/1-1 is supplied with 2.5 mm² BRE-T-2.5 contact pins and is supplied without coding pins.
The FIT-2/1-1 measures approximately 51 mm high, 8.8 mm wide and 65 mm deep and weighs approximately 30 g.
TE Connectivity Entrelec ESSAILEC test plugs provide dedicated connection interfaces for professional electrical measurement, protection and testing systems, helping engineers carry out commissioning, diagnostics and maintenance while preserving organised permanent panel wiring.
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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...