TE Connectivity CPP-2 1SNA166645R0400 is a blue ESSAILEC protecting lid with electrical continuity designed to protect compatible polarity sockets while maintaining the required electrical circuit connection.
Why Choose the TE Connectivity CPP-2 ESSAILEC Polarity Socket Protection Lid?
The TE Connectivity CPP-2 1SNA166645R0400 is a purpose-designed protecting lid with electrical continuity for ESSAILEC polarity sockets. Part of the established TE Connectivity ENTRELEC ESSAILEC measuring and testing range, it protects compatible polarity test connections during normal operation while maintaining the required electrical continuity.
The CPP-2 is specifically identified as the blue protecting lid for polarity sockets with electrical continuity. Its integrated continuity arrangement makes it suitable for ESSAILEC applications where the circuit connection must remain established when the test interface is covered and no test plug is connected.
With compact dimensions of approximately 73 × 49 × 30 mm (H × W × D) and a net weight of approximately 40 g, the CPP-2 provides a practical protective accessory for measurement, monitoring and protection circuits. Its dedicated ESSAILEC construction ensures compatibility with the associated polarity socket system used in industrial switchboards, electrical panels and power-distribution installations.
Key Advantages
Purpose-designed protecting lid for ESSAILEC polarity sockets.
Provides electrical continuity when fitted to the compatible socket.
Helps protect the test interface during normal equipment operation.
Blue colour coding provides clear identification within the ESSAILEC system.
Compact and lightweight construction for straightforward handling.
Designed specifically for the proven TE Connectivity ENTRELEC ESSAILEC test system.
Key Features
TE Connectivity ENTRELEC CPP-2 protecting lid.
Part of the ESSAILEC measuring and testing range.
Designed for polarity sockets.
Electrical continuity incorporated into the lid.
Blue identification colour.
Compact 73 × 49 × 30 mm construction.
Approximately 40 g net weight.
Suitable for electrical measurement, protection and testing systems.
Designed for professional industrial and power-distribution installations.
Reliable Protection for ESSAILEC Polarity Connections
ESSAILEC measuring and testing blocks provide dedicated interfaces for current and voltage measurement, monitoring, injection, maintenance and protection-relay testing in secondary electrical circuits. Protective lids cover compatible socket interfaces during normal service, helping maintain an organised and protected test installation.
The CPP-2 combines physical socket protection with an electrical continuity function. This makes it particularly suitable for compatible polarity circuits where continuity needs to be maintained when test equipment is disconnected and the protective lid is installed.
Typical Applications
ESSAILEC polarity test socket assemblies.
Electrical measurement and metering circuits.
Protection relay testing installations.
Secondary circuits for electrical transformers and sensors.
Industrial switchboards and control panels.
Power distribution and substation equipment.
Technical Specifications
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
CPP-2
Part number
1SNA166645R0400
Product type
Protecting lid with electrical continuity
Application
ESSAILEC polarity sockets
Electrical continuity
Yes
Colour
Blue
Height
73 mm
Width
49 mm
Depth
30 mm
Net weight
40 g
Pack quantity
1
EAN
3472591666458
Frequently Asked Questions
What is the TE Connectivity CPP-2 1SNA166645R0400 used for?
The CPP-2 is a protecting lid with electrical continuity for ESSAILEC polarity sockets, designed to protect the socket interface while maintaining the required circuit connection.
Does the CPP-2 provide electrical continuity?
Yes. The CPP-2 is specifically designed as a protecting lid with electrical continuity for compatible ESSAILEC polarity sockets.
What colour is the TE Connectivity CPP-2?
The CPP-2 protecting lid is blue, providing clear visual identification within the ESSAILEC measuring and testing system.
Which test system is the CPP-2 designed for?
The CPP-2 is designed for the TE Connectivity ENTRELEC ESSAILEC measuring and testing system and is specifically intended for compatible polarity sockets.
What are the dimensions of TE Connectivity 1SNA166645R0400?
The CPP-2 measures approximately 73 × 49 × 30 mm in height, width and depth and has a net weight of approximately 40 g.
Trusted ESSAILEC Test Connection Technology
TE Connectivity ENTRELEC ESSAILEC accessories provide dedicated protection and continuity functions for industrial measurement and testing systems, supporting reliable operation of metering, monitoring and protection circuits.
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
CPP-2
Part number
1SNA166645R0400
Product type
Protecting lid with electrical continuity
Application
ESSAILEC polarity sockets
Electrical continuity
Yes
Colour
Blue
Height
73 mm
Width
49 mm
Depth
30 mm
Net weight
40 g
Pack quantity
1
EAN
3472591666458
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...