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1sna166975r0000 – cc-s-inf2-vl-6,6
TE Connectivity CC-S-INF2-VL-6.6 1SNA166975R0000 is an ESSAILEC coded current test socket with make-before-break contacts, 6.6 coding, half-base surface mounting, side screw-clamp connections and a compact protective cover for current-transformer testing and measurement circuits.
£125.02
Why Choose the TE Connectivity CC-S-INF2-VL-6.6 ESSAILEC Coded Current Test Socket?
The TE Connectivity CC-S-INF2-VL-6.6 1SNA166975R0000 is a professional ESSAILEC coded current test socket designed for testing and measurement on current-transformer secondary circuits. Part of the established TE Connectivity ENTRELEC ESSAILEC range, it combines automatic current-transformer short-circuiting with a compact covered design for reliable metering, protection and maintenance applications.
The CC-S-INF2-VL-6.6 uses a make-before-break contact arrangement, automatically short-circuiting the current-transformer secondary before the measuring circuit is opened during test plug insertion. This enables current testing without manually operating a separate shorting element and helps protect current-transformer circuits during commissioning, meter replacement and protection-relay maintenance.
Designed for half-base surface mounting, this version uses side screw-clamp connections, incorporates 6.6 coding and is supplied with a compact protective cover. The unit measures approximately 63 × 44 × 40 mm (H × W × D), weighs approximately 136 g and provides IP20 protection at the socket and IP40 with its cover correctly fitted.
Key Advantages
- Purpose-designed ESSAILEC current-transformer test socket.
- Make-before-break contacts automatically short-circuit the CT secondary during testing.
- 6.6 coding helps prevent connection to an incorrectly coded test plug.
- Half-base surface mounting supports practical panel installation.
- Side screw-clamp connections provide secure permanent wiring termination.
- Supplied with a compact protective cover supporting IP40 protection.
Key Features
- TE Connectivity ENTRELEC CC-S-INF2-VL-6.6 current socket.
- Part of the ESSAILEC measuring and testing system.
- Designed for current-transformer secondary circuits.
- Make-before-break current contact principle.
- Automatic current-transformer short-circuiting during test plug insertion.
- 6.6 coded socket configuration.
- Half-base surface mounting.
- Side screw-clamp termination.
- Compact cover supplied.
- IP20 / IP40 protection without / with cover.
Automatic Short-Circuiting for Current Transformer Testing
Current-transformer secondary circuits should not normally be opened while the primary circuit is energised. ESSAILEC current sockets address this requirement through a make-before-break principle: when the compatible test plug is inserted, the current-transformer secondary is automatically short-circuited before the measuring circuit is interrupted, avoiding the need to operate a separate manual shorting device.
The 6.6 coding system provides an additional safeguard by helping ensure that the intended coded plug is connected to the correct socket and by protecting against reverse plug insertion. Together with the compact cover and dedicated side screw-clamp wiring, the CC-S-INF2-VL-6.6 provides a coordinated interface for current measurement, monitoring, injection, meter servicing and protection-relay testing.
Typical Applications
- Current-transformer secondary circuits.
- Electrical energy metering systems.
- Protection relay testing and commissioning.
- Current measurement and monitoring panels.
- Industrial switchboards and control systems.
- Power distribution and substation installations.
Technical Specifications
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| Terminal Type | Disconnect / Test | |
|---|---|---|
| Product Series | TE Essailec | |
| Connection | Screw clamp | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ESSAILEC | |
| Model | CC-S-INF2-VL-6.6 | |
| Part number | 1SNA166975R0000 | |
| Product type | Coded current test socket | |
| Application | Current-transformer testing and measurement circuits | |
| Contact principle | Make before break | |
| Current-transformer short-circuiting | Automatic during test plug insertion | |
| Coding | 6.6 | |
| Mounting | Half-base surface mounting | |
| Connection technology | Side screw clamp | |
| Protective cover | Compact cover supplied | |
| Socket protection | IP20 | |
| Protection with cover | IP40 | |
| Height | 63 mm | |
| Width | 44 mm | |
| Depth | 40 mm | |
| Net weight | approx. 136 g | |
| Minimum / standard package quantity | 40 | |
| Customs tariff number | 85369010 | |
| EAN / GTIN | 3472591669756 |
Frequently Asked Questions
What is the TE Connectivity CC-S-INF2-VL-6.6 1SNA166975R0000 used for?
The CC-S-INF2-VL-6.6 is an ESSAILEC coded current test socket designed for testing, measurement, monitoring and maintenance of current-transformer secondary circuits.
How does the CC-S-INF2-VL-6.6 protect a current-transformer circuit during testing?
It uses a make-before-break contact principle that automatically short-circuits the current-transformer secondary before the measuring circuit is opened when a compatible test plug is inserted.
What does the 6.6 designation mean?
The 6.6 designation identifies the ESSAILEC coding arrangement. Coding helps prevent connection errors between different test circuits and protects against reverse insertion of the test plug.
How is TE Connectivity 1SNA166975R0000 installed and wired?
The CC-S-INF2-VL-6.6 is designed for half-base surface mounting and uses side screw-clamp connections for permanent circuit wiring.
What are the dimensions and protection rating of the CC-S-INF2-VL-6.6?
The unit measures approximately 63 × 44 × 40 mm in height, width and depth and weighs approximately 136 g. The socket provides IP20 protection and IP40 with its compact cover correctly fitted.
Trusted ESSAILEC Current Testing Technology
TE Connectivity ENTRELEC ESSAILEC test blocks provide coded, make-before-break interfaces for current-transformer circuits, helping engineers perform measurement, commissioning and maintenance while automatically managing CT secondary short-circuiting and maintaining an organised permanent wiring system.
