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1sna166979r0000 – cor-c-r3 pre wiired current plug
TE Connectivity COR-C-R3 1SNA166979R0000 is an ESSAILEC pre-wired current test plug comprising a red 2-pin plug and two black 4 mm test plugs for convenient connection of compatible current-transformer test sockets to measuring and test equipment.
£78.63
Why Choose the TE Connectivity COR-C-R3 ESSAILEC Pre-Wired Current Test Plug?
The TE Connectivity COR-C-R3 1SNA166979R0000 is a professional ESSAILEC pre-wired current test plug designed for convenient connection to compatible current-transformer test sockets. Part of the TE Connectivity ENTRELEC ESSAILEC current range, it provides a ready-to-use interface for current measurement, commissioning, maintenance and testing of metering and protection circuits.
The COR-C-R3 assembly comprises a red 2-pin plug connected to two black Ø4 mm test plugs. This pre-wired arrangement reduces test preparation and provides a practical connection between compatible ESSAILEC current sockets and suitable measuring or test equipment.
Designed specifically for ESSAILEC current-transformer applications, the COR-C-R3 is compatible with socket types including CC-E-VA, CC-E-VA-6.6, CC-E-VA-R2-6.6, CC-S-INF-VL-6.6, CC-D-VA, CC-TH35-VL-6.6, CC-R-VA and CC-I-VA-2. The complete pre-wired assembly weighs approximately 320 g and is supplied as one ready-configured test accessory.
Key Advantages
- Purpose-designed pre-wired test plug for ESSAILEC current circuits.
- Ready-configured assembly simplifies current measurement and testing procedures.
- Includes a red 2-pin ESSAILEC plug.
- Terminated with two black Ø4 mm test plugs.
- Compatible with a wide selection of ESSAILEC current sockets.
- Original TE Connectivity ENTRELEC accessory for coordinated test-block installations.
Key Features
- TE Connectivity ENTRELEC COR-C-R3 pre-wired plug.
- Part of the ESSAILEC current-transformer range.
- 2-pin plug configuration.
- Red ESSAILEC plug body.
- Two Ø4 mm black test plugs.
- Pre-wired for efficient field testing and commissioning.
- Designed for compatible make-before-break ESSAILEC current sockets.
- Suitable for current measurement, monitoring and protection-system maintenance.
- Approximately 320 g complete assembly weight.
Ready-to-Use Connections for Current Transformer Testing
ESSAILEC current test systems use a make-before-break operating principle in compatible current sockets, allowing current-transformer secondary circuits to be automatically short-circuited before the measurement circuit is interrupted during plug insertion. This helps technicians perform testing without manually operating a separate short-circuiting device.
The COR-C-R3 complements this system by providing a pre-wired connection between the ESSAILEC socket and test equipment through its two standard Ø4 mm test plugs. The ready-configured assembly helps streamline current measurement, meter servicing, protection-relay testing and commissioning work in industrial electrical installations.
Typical Applications
- Current-transformer secondary circuit testing.
- Electrical energy meter testing and replacement.
- Protection relay commissioning and maintenance.
- Current measurement and monitoring systems.
- Industrial switchboard testing.
- Power distribution and substation maintenance.
Technical Specifications
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| Terminal Type | Disconnect / Test | |
|---|---|---|
| Product Series | TE Essailec | |
| Connection | Pluggable | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ESSAILEC | |
| Model | COR-C-R3 | |
| Part number | 1SNA166979R0000 | |
| Product type | Pre-wired current test plug | |
| Application | Current-transformer measurement and testing circuits | |
| ESSAILEC plug | 1 × 2-pin plug | |
| ESSAILEC plug colour | Red | |
| Test connectors | 2 × Ø4 mm test plugs | |
| Test plug colour | Black | |
| Rated voltage | 400 V | |
| Rated impulse withstand voltage | 4 kV | |
| Rated current | 15 A | |
| Pollution degree | 3 | |
| Operating temperature | -10 to +55 °C | |
| Storage temperature | -25 to +70 °C | |
| Compatible sockets | CC-E-VA, CC-E-VA-6.6, CC-E-VA-R2-6.6, CC-S-INF-VL-6.6, CC-D-VA, CC-TH35-VL-6.6, CC-R-VA and CC-I-VA-2 | |
| Net weight | approx. 320 g | |
| Pack quantity | 1 | |
| EAN / GTIN | 3472591669794 |
Frequently Asked Questions
What is the TE Connectivity COR-C-R3 1SNA166979R0000?
The COR-C-R3 is an ESSAILEC pre-wired current test plug designed to connect compatible current-transformer test sockets to electrical measuring and test equipment.
Which connectors are included with the COR-C-R3?
The assembly comprises one red 2-pin ESSAILEC plug and two black Ø4 mm test plugs.
Which ESSAILEC sockets are compatible with the COR-C-R3?
Listed compatible sockets include CC-E-VA, CC-E-VA-6.6, CC-E-VA-R2-6.6, CC-S-INF-VL-6.6, CC-D-VA, CC-TH35-VL-6.6, CC-R-VA and CC-I-VA-2.
What are the electrical ratings of the COR-C-R3?
The ESSAILEC current plug system is rated at 15 A and 400 V, with a rated impulse withstand voltage of 4 kV and pollution degree 3.
What is the weight and product identification for TE Connectivity COR-C-R3?
The COR-C-R3 weighs approximately 320 g. Its manufacturer part number is 1SNA166979R0000 and its EAN / GTIN is 3472591669794.
Trusted ESSAILEC Current Testing Technology
TE Connectivity ENTRELEC ESSAILEC pre-wired plugs provide convenient, purpose-designed connections between current-transformer test sockets and measuring equipment, helping engineers carry out current measurement, commissioning and maintenance efficiently while retaining the safety functions of the coordinated ESSAILEC test system.
