TE Connectivity PF-E-VA 1SNA166761R0000 is an ENTRELEC ESSAILEC flush-mounted voltage test socket with closed contacts and ring-tongue connections for voltage transformer, metering and protection circuits.
Why Choose the TE Connectivity PF-E-VA ESSAILEC Voltage Test Socket?
The TE Connectivity PF-E-VA 1SNA166761R0000 is an industrial ESSAILEC voltage test socket with closed contacts, designed for reliable testing, measurement and maintenance of secondary voltage circuits in protection, metering and instrumentation systems. Part of the established TE Connectivity ENTRELEC ESSAILEC measuring and testing range, it provides a dedicated interface for connecting compatible test equipment without repeatedly disturbing permanent panel wiring.
The PF-E-VA is a flush-mounting socket using ring-tongue connections for secure permanent wiring. Its closed-contact configuration maintains circuit continuity during normal operation, making it suitable for voltage transformer and measurement applications where a dependable test point is required within an electrical panel.
Designed as part of the modular ESSAILEC system, the PF-E-VA can be integrated with compatible test plugs and accessories to support commissioning, diagnostics and scheduled maintenance. Its robust industrial construction makes it suitable for switchgear, substations, relay panels and energy metering assemblies.
Key Advantages
Purpose-designed ESSAILEC voltage test socket for industrial measurement circuits.
Closed-contact configuration maintains circuit continuity during normal operation.
Flush-mounting design for neat integration into electrical panels.
Secure ring-tongue field connections for permanent wiring.
Part of the proven TE Connectivity / ENTRELEC ESSAILEC system.
Supports efficient commissioning, testing and maintenance of voltage transformer and metering circuits.
Key Features
TE Connectivity / ENTRELEC ESSAILEC series.
PF-E-VA model designation.
Closed contacts.
Flush-mounting configuration.
Ring-tongue connection technology.
Designed for voltage measurement and protection circuits.
Compatible with selected ESSAILEC plugs and accessories.
Suitable for switchgear, substations and electrical control panels.
Reliable Voltage Circuit Testing with ESSAILEC
ESSAILEC measuring and testing blocks provide dedicated interfaces for secondary circuits associated with voltage transformers, meters, sensors and protection relays. They allow engineers to connect suitable test equipment for commissioning, measurement and maintenance while helping preserve the integrity and organisation of permanent wiring.
The PF-E-VA combines closed contacts with ring-tongue termination and a flush-mounted format, making it particularly suitable for panel installations where a compact and dependable voltage test interface is required.
Typical Applications
Voltage transformer secondary circuits.
Electrical protection and relay panels.
Metering and energy measurement systems.
Substation control and protection equipment.
Switchgear and distribution assemblies.
Industrial instrumentation systems.
Commissioning and maintenance test interfaces.
Technical Specifications
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
PF-E-VA
Manufacturer part number
1SNA166761R0000
Product type
Voltage test socket
Contact configuration
Closed contacts
Mounting type
Flush mounting
Connection technology
Ring tongue
Application
Voltage transformer, metering and protection circuits
Pack quantity
1
Frequently Asked Questions
What is the TE Connectivity PF-E-VA 1SNA166761R0000 used for?
The PF-E-VA is an ESSAILEC voltage test socket used to provide a dedicated test interface for voltage transformer, metering and protection circuits.
What contact configuration does the PF-E-VA use?
The PF-E-VA uses closed contacts, maintaining electrical continuity through the socket during normal operation.
How is the PF-E-VA mounted?
The PF-E-VA is designed for flush mounting in compatible electrical panels and ESSAILEC installations.
What connection technology does the PF-E-VA use?
The socket uses ring-tongue connections for secure permanent field wiring.
Where is the PF-E-VA typically installed?
It is typically installed in switchgear, substations, protection panels, metering systems and industrial instrumentation assemblies.
Trusted Connectivity for Voltage Measurement Systems
TE Connectivity’s ENTRELEC ESSAILEC measuring and testing system provides dependable interfaces for voltage transformer, protection and metering circuits, supporting efficient commissioning and maintenance while preserving organised permanent panel wiring.
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
PF-E-VA
Manufacturer part number
1SNA166761R0000
Product type
Voltage test socket
Contact configuration
Closed contacts
Mounting type
Flush mounting
Connection technology
Ring tongue
Application
Voltage transformer, metering and protection circuits
Pack quantity
1
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...