TE Connectivity PO-E-VA 1SNA166759R1600 is a flush-mounted ESSAILEC polarity test socket with open contacts and ring-tongue connections, designed for electrical measurement, testing, commissioning and protection circuits.
Why Choose the TE Connectivity PO-E-VA ESSAILEC Polarity Test Socket?
The TE Connectivity PO-E-VA 1SNA166759R1600 is a professional ESSAILEC polarity test socket with open contacts, designed to provide a secure testing interface for electrical measurement, metering and protection circuits. Part of the established TE Connectivity ENTRELEC ESSAILEC test block range, it is intended for applications where reliable circuit isolation and convenient test access are required.
The PO-E-VA features an open-contact configuration and is designed for flush mounting with ring-tongue connections. Its grey body with blue identification distinguishes the polarity function within an ESSAILEC installation, while the modular construction supports integration into switchboards, protection panels and electrical measurement systems.
With dimensions of approximately 74 × 50 × 54 mm (H × W × D) and a weight of approximately 170 g, the PO-E-VA provides a compact test interface for professional installations. It is compatible with the CPP-2 protective lid and COR-P-R1-8.8 pre-wired plug, enabling it to form part of a coordinated ESSAILEC testing system.
Key Advantages
Purpose-designed ESSAILEC polarity test socket.
Open-contact configuration for dedicated testing and isolation arrangements.
Flush-mounting format for integration into electrical panels.
Reliable ring-tongue connection technology.
Compatible with the CPP-2 protective lid.
Supports efficient electrical testing, commissioning and maintenance operations.
Key Features
TE Connectivity ENTRELEC PO-E-VA test socket.
Part of the ESSAILEC measuring and testing range.
Designed as a polarity socket.
Open contacts.
Flush mounting configuration.
Ring-tongue connections.
Grey body with blue polarity identification.
Compatible with CPP-2 protective lid.
Compatible with COR-P-R1-8.8 pre-wired plug.
Compact construction for industrial electrical panels.
Reliable Polarity Testing for Electrical Systems
ESSAILEC test blocks provide dedicated interfaces for electrical measurement, testing, commissioning and maintenance operations. By incorporating accessible test sockets into an installation, engineers can connect compatible test equipment through a defined interface rather than repeatedly disturbing permanent field wiring.
The PO-E-VA uses an open-contact arrangement suited to polarity testing and circuit isolation requirements. Its flush-mounted ring-tongue design and compatibility with dedicated ESSAILEC lids and pre-wired plugs make it suitable for coordinated test systems in switchboards, substations, metering panels and protection installations.
Typical Applications
Electrical polarity testing circuits.
Protection relay testing and commissioning.
Electrical metering and measurement systems.
Secondary control and monitoring circuits.
Industrial switchboards and protection panels.
Power distribution and substation installations.
Technical Specifications
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
PO-E-VA
Part number
1SNA166759R1600
Product type
Polarity test socket
Application
Electrical measurement and testing circuits
Contact configuration
Open contacts
Connection type
Ring-tongue
Mounting type
Flush mounting
Colour
Grey with blue identification
Compatible lid
CPP-2
Compatible pre-wired plug
COR-P-R1-8.8
Height
74 mm
Width
50 mm
Depth
54 mm
Net weight
approx. 170 g
Pack quantity
1
EAN
3472591667592
Frequently Asked Questions
What is the TE Connectivity PO-E-VA 1SNA166759R1600 used for?
The PO-E-VA is an ESSAILEC polarity test socket designed to provide a dedicated interface for electrical testing, measurement, commissioning and circuit isolation applications.
What contact configuration does the PO-E-VA use?
The PO-E-VA uses an open-contact configuration, distinguishing it from short-circuited and closed-contact variants in the ESSAILEC range.
How is the PO-E-VA installed?
The PO-E-VA is designed for flush mounting and uses ring-tongue connections for integration into compatible electrical assemblies.
Which protective lid is compatible with the PO-E-VA?
The PO-E-VA is compatible with the TE Connectivity CPP-2 protective lid, providing a coordinated accessory solution within the ESSAILEC range.
What are the dimensions of TE Connectivity 1SNA166759R1600?
The PO-E-VA measures approximately 74 × 50 × 54 mm in height, width and depth and has a net weight of approximately 170 g.
Trusted ESSAILEC Test Connection Technology
TE Connectivity ENTRELEC ESSAILEC test blocks provide dedicated interfaces for industrial electrical measurement, metering and protection systems, supporting efficient testing, commissioning and maintenance while maintaining an organised connection architecture.
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
PO-E-VA
Part number
1SNA166759R1600
Product type
Polarity test socket
Application
Electrical measurement and testing circuits
Contact configuration
Open contacts
Connection type
Ring-tongue
Mounting type
Flush mounting
Colour
Grey with blue identification
Compatible lid
CPP-2
Compatible pre-wired plug
COR-P-R1-8.8
Height
74 mm
Width
50 mm
Depth
54 mm
Net weight
approx. 170 g
Pack quantity
1
EAN
3472591667592
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.
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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...