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1sna166723r2200 – to-s-inf-vl-12-12
TE Connectivity 1SNA166723R2200 TO-S-INF-VL-12.12 is an ESSAILEC open-contact voltage test socket with side screw-clamp connections, base or half-base mounting, protective cover and 12.12 coding for voltage-transformer secondary circuits.
£129.17
Why Choose the TE Connectivity 1SNA166723R2200 TO-S-INF-VL-12.12 Voltage Test Socket?
The TE Connectivity 1SNA166723R2200 is a TO-S-INF-VL-12.12 voltage test socket from the ENTRELEC ESSAILEC measuring and testing range. Designed for testing and measurement on voltage-transformer secondary circuits, this grey socket provides a dedicated interface for professional metering, protection, monitoring and commissioning systems.
The TO-S-INF-VL-12.12 features open contacts, side screw-clamp connections and base / half-base mounting. It is supplied with its cover and coding components, providing a configured test interface that helps prevent incorrect mating between plugs and sockets assigned to different electrical circuits.
Designed around the ESSAILEC plug-and-play testing concept, the 1SNA166723R2200 allows compatible test plugs to be connected for voltage measurement and other secondary-circuit test operations. Its dedicated 12.12 coding and supplied protective cover make it suitable for organised test installations in switchgear, substations and industrial electrical panels.
Key Advantages
- Purpose-built ESSAILEC voltage test socket for voltage-transformer secondary circuits.
- Open-contact configuration designed for voltage measurement and testing applications.
- Side screw-clamp termination provides secure field wiring connections.
- Suitable for base and half-base mounting.
- Supplied with cover and coding components.
- Dedicated 12.12 coding helps prevent incorrect test plug connections.
- ESSAILEC architecture supports structured testing, measurement, monitoring and maintenance.
- Compatible with dedicated ESSAILEC voltage test plugs, including the FIT-2/4-2.
Key Features
- TE Connectivity / ENTRELEC ESSAILEC measuring and testing component.
- TO-S-INF-VL-12.12 product designation.
- Voltage test socket for voltage-transformer applications.
- Open contacts.
- Side screw-clamp conductor termination.
- Base / half-base mounting configuration.
- 12.12 coded interface.
- Cover and coding supplied with the socket.
- Grey insulating housing.
- Compatible with the FIT-2/4-2 test plug.
- Designed for professional ESSAILEC measuring and testing systems.
- Manufacturer part number 1SNA166723R2200.
Structured Voltage Testing for Transformer Secondary Circuits
ESSAILEC test blocks provide a dedicated plug-and-socket interface for measurement and maintenance operations on secondary circuits associated with current and voltage transformers, sensors, meters and protection relays. The system allows engineers to connect compatible test equipment through a defined interface, simplifying measurement, monitoring, injection, commissioning, repair and equipment replacement procedures.
The TE Connectivity TO-S-INF-VL-12.12 is configured specifically as an open-contact voltage socket with side screw-clamp wiring and base or half-base mounting. Its 12.12 coding, supplied cover and compatibility with the corresponding ESSAILEC test plug provide a controlled solution for voltage-transformer test circuits in industrial and power distribution installations.
Typical Applications
- Voltage transformer secondary circuit testing.
- Voltage measurement and monitoring circuits.
- Protection relay testing and commissioning.
- Electrical metering systems.
- Switchgear test and protection panels.
- Substation control and instrumentation systems.
- Industrial power distribution equipment.
- Compatible ENTRELEC ESSAILEC measuring and testing assemblies.
Technical Specifications
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| Terminal Type | Disconnect / Test | |
|---|---|---|
| Connection | Screw clamp | |
| Product Series | TE Essailec | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ESSAILEC | |
| Model | TO-S-INF-VL-12.12 | |
| Part number | 1SNA166723R2200 | |
| Product type | Voltage test socket | |
| Application | Voltage-transformer secondary circuit testing and measurement | |
| Contact configuration | Open contacts | |
| Connection technology | Side screw clamp | |
| Mounting | Base / half-base mounting | |
| Coding | 12.12 | |
| Cover | Included | |
| Coding components | Included | |
| Colour | Grey | |
| Compatible test plug | FIT-2/4-2 | |
| Product net weight | approx. 200 g | |
| Pack quantity | 1 | |
| EAN | 3472591667233 | |
| Customs tariff number | 85369010 |
Frequently Asked Questions
What is the TE Connectivity 1SNA166723R2200?
The 1SNA166723R2200 is a TO-S-INF-VL-12.12 ESSAILEC voltage test socket designed for measurement and testing on voltage-transformer secondary circuits.
What type of contacts does the TO-S-INF-VL-12.12 use?
The TO-S-INF-VL-12.12 uses an open-contact configuration, making it suitable for voltage-transformer measuring and testing applications.
How are conductors connected to the 1SNA166723R2200?
The socket uses side screw-clamp connections to provide secure conductor termination within the ESSAILEC test assembly.
What mounting arrangement does the TO-S-INF-VL-12.12 use?
The socket is designed for base or half-base mounting and is supplied with its cover and coding components.
Which test plug is compatible with the TO-S-INF-VL-12.12?
The manufacturer catalogue identifies the FIT-2/4-2 as the compatible ESSAILEC test plug for this socket configuration.
What is the purpose of the 12.12 coding?
The 12.12 coding forms part of the ESSAILEC coding system, helping prevent incorrect mating of test plugs and sockets assigned to different secondary electrical circuits.
Trusted for Industrial Measuring and Testing Systems
TE Connectivity ENTRELEC ESSAILEC products provide dedicated interfaces for voltage-transformer, metering and protection circuits, helping engineers perform structured measurement, testing, commissioning and maintenance operations across switchgear, substations and industrial power installations.
