TE Connectivity CPT-2 1SNA166577R2000 is a grey IP40 protecting lid with electrical continuity for ESSAILEC voltage sockets, designed to protect test connections while maintaining circuit continuity through internal pins and a linking bar.
SKU:1SNA166577R2000Alt SKU:VOLTAGE COVER WITH LINKMPN:1SNA166577R2000
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Why Choose the TE Connectivity CPT-2 Voltage Socket Protection Lid?
The TE Connectivity CPT-2 1SNA166577R2000 is a protecting lid with electrical continuity for ESSAILEC voltage sockets, designed to protect test connections during normal operation while maintaining the required electrical circuit continuity. Part of the established TE Connectivity ENTRELEC ESSAILEC test block range, it is intended for measurement, protection and testing installations used in industrial electrical systems.
During normal operation, the CPT-2 helps protect compatible voltage test sockets against dust and unauthorised access. Unlike a standard protective lid, this version incorporates electrical continuity through internal pins and a linking bar, making it suitable for ESSAILEC socket configurations with opened contacts where continuity must be maintained when the test plug is not connected.
The CPT-2 has a grey finish, provides IP40 protection when correctly fitted and weighs approximately 40 g. Its compact ESSAILEC-compatible construction provides a straightforward way to protect voltage test interfaces while supporting safe and efficient operation of electrical measurement and protection circuits.
Key Advantages
Purpose-designed protecting lid for ESSAILEC voltage sockets.
Provides electrical continuity through internal pins and a linking bar.
Helps protect test sockets from dust and unauthorised use.
IP40 protection when correctly installed.
Suitable for socket arrangements with opened contacts requiring continuity.
Compact accessory designed specifically for the TE Connectivity ENTRELEC ESSAILEC test system.
Key Features
TE Connectivity ENTRELEC CPT-2 protective lid.
Designed specifically for ESSAILEC voltage sockets.
Lid with electrical continuity.
Continuity provided by internal pins and linking bar.
Grey identification colour.
IP40 protection with lid fitted.
Suitable for normal-operation protection of test socket interfaces.
Compact design for measurement and protection installations.
Reliable Protection for ESSAILEC Test Connections
ESSAILEC test blocks are designed to simplify electrical testing, measurement, monitoring and maintenance in secondary current and voltage circuits. Protective lids help keep socket interfaces covered during normal service, reducing exposure to dust and discouraging unauthorised access to test connections.
For opened-contact voltage socket configurations, electrical continuity must be preserved while the test connection is not in use. The CPT-2 addresses this requirement with integrated internal pins and a linking bar, combining physical socket protection with the continuity function required by the compatible ESSAILEC arrangement.
Typical Applications
ESSAILEC voltage test socket assemblies.
Electrical measurement and metering circuits.
Protection relay testing installations.
Secondary circuits associated with voltage transformers and sensors.
Industrial switchboards and control panels.
Power distribution and electrical testing systems.
Technical Specifications
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
CPT-2
Part number
1SNA166577R2000
Product type
Protecting lid with electrical continuity
Application
ESSAILEC voltage sockets
Electrical continuity
Yes
Continuity method
Internal pins and linking bar
Protection rating
IP40
Colour
Grey
Height
73 mm
Width
49 mm
Depth
30 mm
Weight
40 g
Pack quantity
1
EAN
3472591665772
Frequently Asked Questions
What is the TE Connectivity CPT-2 1SNA166577R2000 used for?
The CPT-2 is a protecting lid for ESSAILEC voltage sockets, providing physical protection while maintaining electrical continuity in compatible opened-contact socket configurations.
Does the CPT-2 provide electrical continuity?
Yes. The CPT-2 is specifically designed as a lid with electrical continuity, using internal pins and a linking bar to maintain the required circuit connection.
What protection rating does the CPT-2 provide?
The ESSAILEC CPT-2 provides IP40 protection when correctly fitted to the compatible socket.
What colour is the TE Connectivity CPT-2?
The CPT-2 protecting lid for voltage sockets is grey, distinguishing it within the ESSAILEC accessory range.
What are the dimensions of TE Connectivity 1SNA166577R2000?
The CPT-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 purpose-designed protection and continuity functions for electrical measurement and testing systems, supporting reliable operation of industrial metering, monitoring and protection circuits.
Manufacturer
TE Connectivity / ENTRELEC
Series
ESSAILEC
Model
CPT-2
Part number
1SNA166577R2000
Product type
Protecting lid with electrical continuity
Application
ESSAILEC voltage sockets
Electrical continuity
Yes
Continuity method
Internal pins and linking bar
Protection rating
IP40
Colour
Grey
Height
73 mm
Width
49 mm
Depth
30 mm
Weight
40 g
Pack quantity
1
EAN
3472591665772
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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...