Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1sna166566r2500 – m10-r-c5a
TE Connectivity 1SNA166566R2500 M10-R-C5A is a grey 400 V 8 A ESSAILEC multicircuit test socket with C5A quick-connect terminals and rack/back-panel mounting for compatible electrical measuring and testing systems.
£35.40
Why Choose the TE Connectivity 1SNA166566R2500 M10-R-C5A Multicircuit Test Socket?
The TE Connectivity 1SNA166566R2500 is an M10-R-C5A multicircuit test socket from the ENTRELEC ESSAILEC measuring and testing range. Designed for rack or back-panel mounting, this grey socket provides a structured connection interface for current measurement and testing circuits used in industrial power distribution, protection and metering systems.
The M10-R-C5A uses a quick-connect C5A interface and provides a multicircuit arrangement for connection with the compatible FIM10-R test plug. The ESSAILEC architecture is designed to simplify testing, measurement, monitoring and maintenance of secondary circuits associated with current transformers, meters and protection relays.
Rated at 400 V and 8 A, the M10-R-C5A has an impulse withstand voltage of 4 kV and is designed for demanding industrial test installations. The socket is supplied with the accessories required for its mounting arrangement, including two COP-E-1 coding pins, helping ensure correct plug/socket configuration.
Key Advantages
- Purpose-built ESSAILEC multicircuit socket for measuring and testing systems.
- Rack/back-panel mounting configuration for structured panel installations.
- Compatible with the dedicated FIM10-R test plug.
- 400 V rated voltage for industrial secondary circuits.
- 8 A rated current.
- 4 kV impulse withstand voltage.
- Quick-connect C5A interface supports efficient test system integration.
- Supplied with mounting accessories and two coding pins.
Key Features
- TE Connectivity / ENTRELEC ESSAILEC measuring and testing component.
- M10-R-C5A product designation.
- Multicircuit test socket.
- Rack mounting / back-panel mounting design.
- Quick-connect C5A connection system.
- 400 V rated voltage.
- 8 A rated current.
- 4 kV impulse withstand voltage.
- 25 A for 5 s short-circuit current capability.
- 800 A for 25 ms short-duration current capability.
- IP20 front-panel protection.
- Compatible with FIM10-R plug, part number 1SNA166573R2400.
- Supplied with 2 × COP-E-1 coding pins.
- Grey housing for identification within ESSAILEC assemblies.
Structured Multicircuit Testing for Protection and Metering Systems
ESSAILEC test systems provide dedicated connection interfaces for secondary circuits associated with current transformers, meters and protection equipment. Using a matched socket and test plug allows engineers to perform measurement, monitoring, commissioning and maintenance operations through an organised test interface rather than relying on temporary wiring arrangements.
The TE Connectivity M10-R-C5A is specifically configured for rack or back-panel installation and mates with the FIM10-R test plug. Its 400 V, 8 A electrical ratings, C5A quick-connect interface and dedicated coding arrangement make it suitable for professional multicircuit testing installations in switchgear, protection panels, substations and industrial electrical systems.
Typical Applications
- Current transformer secondary circuits.
- Protection relay testing and commissioning.
- Electrical metering and monitoring systems.
- Switchgear test and protection panels.
- Substation control and protection equipment.
- Industrial power distribution systems.
- Rack-mounted electrical testing assemblies.
- Compatible ENTRELEC ESSAILEC multicircuit test systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE Essailec | |
| Connection | Screw clamp | |
| Terminal Type | Disconnect / Test | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ESSAILEC | |
| Model | M10-R-C5A | |
| Part number | 1SNA166566R2500 | |
| Product type | Multicircuit test socket | |
| Application | Current measuring and testing circuits | |
| Mounting configuration | Rack / back-panel mounting | |
| Connection system | Quick-connect C5A | |
| Quick-connect size | 5 × 0.8 mm | |
| Rated voltage | 400 V | |
| Rated current | 8 A | |
| Impulse withstand voltage | 4 kV | |
| Short-circuit current | 25 A for 5 s | |
| Short-duration current | 800 A for 25 ms | |
| Pollution degree | 3 | |
| Front-panel protection | IP20 | |
| Working temperature range | -10 to +55 °C | |
| Storage temperature range | -25 to +70 °C | |
| Colour | Grey | |
| Compatible plug | FIM10-R, 1SNA166573R2400 | |
| Supplied coding pins | 2 × COP-E-1 | |
| Product net weight | 60 g | |
| Pack quantity | 10 | |
| EAN | 3472591665666 |
Frequently Asked Questions
What is the TE Connectivity 1SNA166566R2500?
The 1SNA166566R2500 is an M10-R-C5A multicircuit test socket from the ENTRELEC ESSAILEC range, designed for rack/back-panel mounting in electrical measuring and testing systems.
Which test plug is compatible with the M10-R-C5A?
The M10-R-C5A is designed for use with the FIM10-R test plug, TE Connectivity part number 1SNA166573R2400.
What are the electrical ratings of the 1SNA166566R2500?
The M10-R-C5A has a rated voltage of 400 V, a rated current of 8 A and an impulse withstand voltage of 4 kV.
How is the M10-R-C5A mounted?
The R version is specifically designed for rack or back-panel mounting within compatible ESSAILEC test assemblies.
Are coding accessories supplied with the M10-R-C5A?
Yes. The accessories required for the mounting arrangement are supplied with the socket, together with two COP-E-1 coding pins for configuring the compatible ESSAILEC interface.
Trusted for Industrial Measuring and Testing Systems
TE Connectivity ENTRELEC ESSAILEC test systems provide dedicated interfaces for metering, current transformer and protection circuits, helping electrical engineers carry out structured testing, commissioning and maintenance operations in industrial power distribution and control installations.
