TE Connectivity 1SNA166754R0100 TC-E-C5A is an ESSAILEC voltage transformer test block socket designed for electrical measurement, testing, commissioning and protection applications.
£132.56
The TE Connectivity 1SNA166754R0100, also identified as TC-E-C5A, is a specialised ESSAILEC test block socket designed for voltage transformer measurement, testing and protection applications. Part of the established TE Connectivity / Entrelec ESSAILEC range, it provides a dependable connection interface for instrument transformer secondary circuits in electrical distribution and industrial control systems.
The ESSAILEC system is designed to simplify access to voltage transformer circuits during testing, commissioning, measurement and maintenance. The TC-E-C5A belongs to the flush-mounted socket family and provides a modular interface that can be used with compatible ESSAILEC test plugs and accessories, helping engineers perform routine electrical testing without complex temporary wiring.
Designed for demanding measurement and protection environments, the ESSAILEC voltage transformer platform is rated at 8 A and provides IP20 protection without a lid, increasing to IP40 when the appropriate protective lid is fitted. The TC-E-C5A is particularly suitable for switchgear, protection panels, metering systems and substation equipment requiring convenient and repeatable test access.
ESSAILEC test blocks provide a dedicated interface between voltage transformer secondary circuits and electrical measurement or protection equipment. This modular arrangement gives technicians convenient access during commissioning, routine testing and maintenance while helping maintain an organised and repeatable connection system within the electrical installation.
The TC-E-C5A is designed for integration into ESSAILEC voltage transformer applications and can be used alongside compatible test plugs and accessories. This makes it particularly suitable for switchgear, substations, protection systems and metering installations where efficient access to measurement circuits is essential.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | ESSAILEC Test Blocks |
| Model | TC-E-C5A |
| Manufacturer part number | 1SNA166754R0100 |
| Product type | Test block socket / fixed terminal block |
| Application | Voltage transformer measurement and testing circuits |
| Mounting type | Flush mounting |
| Rated current | 8 A |
| Protection rating | IP20 without lid / IP40 with compatible lid |
| Pollution degree | 3 |
| Working temperature range | -10 to +55 °C |
| Storage temperature range | -25 to +70 °C |
| Factory pack quantity | 1 |
| Barcode | 3472591667547 |
The 1SNA166754R0100 is an ESSAILEC test block socket designed for voltage transformer measurement, testing, commissioning and protection applications.
The manufacturer's product designation is TC-E-C5A.
The ESSAILEC voltage transformer test block platform is rated at 8 A.
The ESSAILEC socket system provides IP20 protection without a lid and can achieve IP40 protection with the appropriate compatible lid.
The TC-E-C5A is typically used in voltage transformer circuits within switchgear, substations, protection panels, metering systems and industrial electrical installations requiring convenient test and measurement access.
TE Connectivity / Entrelec ESSAILEC test blocks provide specialised connection solutions for instrument transformer, metering and protection circuits where reliable test access, secure electrical connections and efficient maintenance are essential.
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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...