TE Connectivity TF-DS-VL 1SNA166503R2700 is an ENTRELEC ESSAILEC closed-contact voltage test block socket with screw-clamp connections for industrial protection, metering and measurement circuits.
£113.67
The TE Connectivity TF-DS-VL 1SNA166503R2700 is an industrial ESSAILEC voltage test block socket designed for reliable testing, measurement and monitoring of voltage circuits in electrical control, protection and metering systems. Part of the established ENTRELEC ESSAILEC test block range, the TF-DS-VL provides closed contacts for dependable connection of voltage measurement circuits.
Designed for base or half-base mounting, the TF-DS-VL uses screw-clamp connections and provides a practical interface for test and measurement equipment. The ESSAILEC system is widely suited to electrical protection and instrumentation applications where circuits must be accessed safely and efficiently during commissioning, testing and maintenance.
The TF-DS-VL features a grey housing and closed-contact configuration and is compatible with selected ESSAILEC accessories and plugs. Its modular industrial construction makes it particularly suitable for switchgear, protection panels, metering assemblies and other installations requiring dependable voltage circuit testing.
ESSAILEC test blocks provide a dedicated connection interface between electrical measurement circuits and test equipment. They are designed to simplify commissioning, troubleshooting and periodic maintenance while providing a structured and dependable method of accessing instrumentation and protection circuits.
The TF-DS-VL uses closed contacts and screw-clamp field connections, making it well suited to permanent voltage circuit installations. Its modular format enables integration with compatible ESSAILEC plugs and accessories, helping engineers create organised test interfaces within switchgear, control panels and electrical protection systems.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | ESSAILEC |
| Model | TF-DS-VL |
| Manufacturer part number | 1SNA166503R2700 |
| Product type | Voltage test block socket |
| Contact configuration | Closed contacts |
| Connection technology | Screw clamp |
| Mounting type | Base / half-base mounting |
| Colour | Grey |
| Recommended tightening torque | 0.5–0.8 Nm |
| Working temperature range | -10 to +55 °C |
| Storage temperature range | -25 to +70 °C |
| Protection without cover | IP20 |
| Protection with cover | IP40 |
| Weight | approx. 120 g |
| Pack quantity | 1 |
The TF-DS-VL is an ESSAILEC voltage test block socket used to provide a reliable interface for testing, measuring and monitoring voltage circuits in industrial electrical systems.
The TF-DS-VL is supplied with closed contacts, making it suitable for continuous voltage measurement circuit connections.
The test block uses screw-clamp terminals for dependable field wiring connections.
The TF-DS-VL is designed for base or half-base mounting as part of an ESSAILEC test block installation.
It is typically installed in switchgear, protection panels, metering systems and industrial control assemblies where convenient access to voltage measurement circuits is required.
TE Connectivity’s ENTRELEC ESSAILEC test block range provides engineers with modular, dependable test connectivity for electrical protection, metering and instrumentation systems, supporting efficient commissioning and maintenance in demanding industrial installations.
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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...