TE Connectivity 1SNA166964R0000 TC-TH35-VL is an ESSAILEC 400 V, 8 A voltage test socket with short-circuited make-before-break contacts, screw-clamp connections and TH35 DIN rail mounting for measurement, calibration and distribution applications.
£132.56
The TE Connectivity 1SNA166964R0000, also identified as TC-TH35-VL, is a specialised ESSAILEC voltage test socket with short-circuited contacts designed for measurement, calibration and electrical distribution applications. Part of the TE Connectivity / Entrelec ESSAILEC range, it provides a dedicated test interface for voltage circuits within switchgear, metering, protection and industrial electrical systems.
The TC-TH35-VL uses a make-before-break contact principle. During operation, the circuit is automatically shorted when a compatible plug is inserted and closes automatically when the plug is removed. This controlled switching arrangement supports safe and efficient access to measurement circuits during testing, commissioning and maintenance procedures.
Designed specifically for TH35 DIN rail mounting, the socket uses screw-clamp connections and has compact dimensions of approximately 44 mm wide, 80 mm high and 49 mm deep. The grey housing identifies it as part of the ESSAILEC voltage range, while compatibility with several ESSAILEC covers and test plugs provides flexibility when configuring a complete test system.
The ESSAILEC voltage range is designed to provide controlled access to electrical measurement and protection circuits during calibration, testing and maintenance. The TC-TH35-VL incorporates short-circuited contacts operating according to the make-before-break principle, allowing the circuit state to be controlled automatically as a compatible test plug is inserted or removed.
Its TH35 rail mounting format makes the TC-TH35-VL particularly suitable for integration into electrical panels where conventional DIN rail installation is preferred. Combined with screw-clamp wiring, compatible covers and ESSAILEC test plugs, it provides a modular solution for building accessible voltage measurement and testing circuits.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | ESSAILEC Voltage Range |
| Model | TC-TH35-VL |
| Manufacturer part number | 1SNA166964R0000 |
| Product type | Voltage test socket |
| Contact configuration | Short-circuited contacts |
| Contact principle | Make-before-break |
| Rated voltage | 400 V |
| Rated current | 8 A |
| Impulse withstand voltage | 4 kV |
| Short-circuit current | 25 A / 5 s to 800 A / 25 ms |
| Connection technology | Screw clamp |
| Mounting | TH35 DIN rail |
| Colour | Grey |
| Width | 44 mm |
| Height | 80 mm |
| Depth | 49 mm |
| Net weight | approx. 114 g |
| Working temperature | -10 to +55 °C |
| Storage temperature | -25 to +70 °C |
| Pollution degree | 3 |
| Protection without cover | IP20 |
| Protection with compatible cover | IP40 |
| Compatible covers | CPT-1, CPT-5 |
| Compatible universal plug | FI-2/4-DIA4 |
| Compatible prewired plugs | COR-T-R5-2.2, COR-T-4-4 |
| ETIM classification | EC000902 disconnect terminal block |
| Pack quantity | 1 |
| EAN | 3472591669640 |
The 1SNA166964R0000 is an ESSAILEC voltage test socket designed for measurement, calibration, distribution and compatible electrical testing applications.
The TC-TH35-VL incorporates short-circuited contacts with a make-before-break principle, providing controlled circuit operation when a compatible test plug is inserted or removed.
The TC-TH35-VL is specifically designed for TH35 DIN rail mounting and uses screw-clamp connections for field wiring.
The ESSAILEC TC-TH35-VL voltage socket has a rated voltage of 400 V, rated current of 8 A and impulse withstand voltage of 4 kV.
The TC-TH35-VL supports compatible ESSAILEC accessories including the CPT-1 and CPT-5 covers and the FI-2/4-DIA4 universal plug, along with compatible prewired test plug assemblies.
TE Connectivity / Entrelec ESSAILEC test blocks provide specialised connection solutions for measurement, calibration and protection circuits where controlled 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...