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1sna166746r0100 – tf-d-va
TE Connectivity TF-D-VA 1SNA166746R0100 is an ENTRELEC ESSAILEC closed-contact voltage test socket with half-base mounting and ring-tongue connections for protection, metering, voltage transformer and electrical testing circuits.
£81.87
Why Choose the TE Connectivity TF-D-VA ESSAILEC Voltage Test Socket?
The TE Connectivity TF-D-VA (1SNA166746R0100) is a specialised ESSAILEC closed-contact voltage test socket designed for electrical protection, metering, measurement and voltage transformer circuits. Part of the established TE Connectivity ENTRELEC ESSAILEC range, it provides a dependable interface for testing, commissioning and maintenance within industrial and utility electrical systems.
The TF-D-VA features closed contacts, a half-base mounting arrangement and ring-tongue connections for secure permanent wiring. This configuration is designed for professional voltage testing systems where engineers require reliable access to secondary circuits while maintaining an organised and serviceable electrical installation.
With compact dimensions of approximately 57 × 44 × 63 mm and a net weight of approximately 119 g, the TF-D-VA provides a robust connection solution for protection panels, switchgear and metering equipment. Its ESSAILEC format also supports compatible test plugs and accessories, allowing structured testing procedures without repeatedly disturbing permanent field wiring.
Key Advantages
- Purpose-designed ESSAILEC voltage test socket for professional electrical testing.
- Closed-contact configuration for dedicated voltage measurement and protection circuits.
- Half-base mounting supports integration into compatible ESSAILEC installations.
- Ring-tongue connections provide secure and dependable permanent wiring.
- Compact 44 mm width helps optimise available panel space.
- Compatible with selected ESSAILEC test plugs and pre-wired testing accessories.
- Suitable for metering, protection, commissioning and maintenance applications.
Key Features
- TE Connectivity ENTRELEC ESSAILEC series.
- TF-D-VA voltage test socket.
- Closed-contact configuration.
- Half-base mounting design.
- Ring-tongue termination for permanent wiring.
- Designed for voltage transformer and measurement circuits.
- Compatible with selected ESSAILEC test plugs.
- Compact industrial test-block construction.
- Designed for protection, metering, testing and commissioning applications.
Reliable Voltage Testing for Protection and Metering Systems
ESSAILEC test blocks provide dedicated interfaces between permanently installed electrical circuits and test or measurement equipment. This modular approach allows engineers to perform commissioning, voltage measurement, monitoring and maintenance through an organised test interface while reducing the need to disconnect permanent installation wiring.
The TF-D-VA combines closed contacts with half-base mounting and ring-tongue termination, making it particularly suitable for voltage transformer and protection applications. Its compatibility with the wider ESSAILEC system enables engineers to create structured testing arrangements for switchgear, substations and electrical metering installations.
Typical Applications
- Voltage transformer secondary circuits.
- Protection relay testing and commissioning.
- Electrical energy metering systems.
- Substation protection and control panels.
- Switchgear testing and maintenance.
- Voltage measurement and monitoring circuits.
- Industrial and utility power distribution systems.
Technical Specifications
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| Terminal Type | Disconnect / Test | |
|---|---|---|
| Product Series | TE Essailec | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ESSAILEC | |
| Model | TF-D-VA | |
| Manufacturer part number | 1SNA166746R0100 | |
| Product type | Voltage test socket | |
| Contact configuration | Closed contacts | |
| Mounting type | Half-base mounting | |
| Connection type | Ring tongue | |
| Conductor cross-section | 10 mm² | |
| Application | Voltage measurement, protection and testing circuits | |
| Height | 57 mm | |
| Width | 44 mm | |
| Depth | 63 mm | |
| Weight | approx. 119 g | |
| Pack quantity | 1 | |
| Country of origin | France |
Frequently Asked Questions
What is the TE Connectivity TF-D-VA used for?
The TF-D-VA is an ESSAILEC voltage test socket designed for voltage transformer, protection, metering, measurement, commissioning and electrical testing circuits.
What contact configuration does the TF-D-VA use?
The TF-D-VA uses a closed-contact configuration designed for specialised ESSAILEC voltage measurement and testing systems.
How is the TF-D-VA mounted?
The TE Connectivity 1SNA166746R0100 uses a half-base mounting arrangement for integration into compatible ESSAILEC installations.
What connection method does the TF-D-VA use?
The TF-D-VA uses ring-tongue connections to provide secure permanent conductor termination within protection and metering systems.
What are the dimensions of the TF-D-VA?
The TE Connectivity TF-D-VA measures approximately 57 × 44 × 63 mm and has a net weight of approximately 119 g.
Trusted by Electrical Protection and Control Engineers Worldwide
TE Connectivity ENTRELEC ESSAILEC test blocks provide dependable connection and testing interfaces for voltage measurement, protection, metering and commissioning applications across industrial and utility electrical systems.
