TE Connectivity M10-P-C5A 1SNA166772R0300 is an 8 A, 400 V 10-position ENTRELEC ESSAILEC multicircuit test socket with quick-connect terminals and extension mounting for electrical measurement and protection circuits.
£74.54
The TE Connectivity M10-P-C5A 1SNA166772R0300 is a 10-position ESSAILEC multicircuit test socket designed for extension mounting in professional electrical measurement and protection systems. Part of the established ENTRELEC ESSAILEC range, it provides a convenient connection interface for testing secondary circuits associated with current and voltage transformers, meters and protection relays.
The M10-P-C5A uses 5 × 0.8 mm quick-connect terminals and is rated at 8 A and 400 V. Its extension-mounting configuration provides an alternative installation arrangement within the ESSAILEC multicircuit family, while the grey housing and dedicated coding system support organised identification and correct mating of test components.
ESSAILEC multicircuit test blocks are designed to simplify measurement, monitoring, signal injection, commissioning and maintenance procedures. The M10-P-C5A can be used with the compatible FIM10-1 plug, providing a plug-and-play interface that enables engineers to access test circuits without repeatedly disturbing permanently installed wiring.
ESSAILEC test blocks provide a dedicated interface for current and voltage measurement, monitoring, signal injection and maintenance of meters and protection relays installed in transformer and sensor secondary circuits. Combining a permanently wired socket with a removable test plug helps technicians perform commissioning and maintenance without repeatedly disconnecting fixed panel wiring.
The M10-P-C5A adds an extension-mounting option to the ESSAILEC multicircuit system. Its quick-connect terminals, dedicated FIM10-1 plug compatibility and supplied coding components support a structured test installation where reliable circuit identification and repeatable access are important.
| Manufacturer | TE Connectivity |
|---|---|
| Brand / range | ENTRELEC |
| Series | ESSAILEC |
| Model | M10-P-C5A |
| Manufacturer part number | 1SNA166772R0300 |
| Product type | Fixed multicircuit test socket / terminal block |
| Number of positions | 10 |
| Rated current | 8 A |
| Rated voltage | 400 V |
| Impulse withstand voltage | 4 kV |
| Connection technology | Quick-connect |
| Quick-connect size | 5 × 0.8 mm |
| Mounting type | Extension mounting |
| Colour | Grey |
| Pollution degree | 3 |
| Short-circuit withstand | 25 A / 5 s to 800 A / 25 ms |
| Working temperature range | -10–55 °C |
| Storage temperature range | -25–70 °C |
| Protection without cover | IP20 |
| Protection with suitable cover | IP40 |
| Height | 63 mm |
| Width | 22 mm |
| Depth | 75.5 mm |
| Weight | approx. 66 g |
| Compatible plug | FIM10-1 |
| Coding pins | 2 × COP-E-1 supplied |
| Factory pack quantity | 10 |
| EAN | 3472591667721 |
The M10-P-C5A is a 10-position ENTRELEC ESSAILEC multicircuit test socket with quick-connect terminals, designed for extension mounting in electrical measurement and protection systems.
The M10-P-C5A has a rated current of 8 A, a rated voltage of 400 V and an impulse withstand voltage of 4 kV.
The socket uses 5 × 0.8 mm quick-connect terminals, providing an efficient termination method for permanent panel wiring.
The M10-P-C5A is designed for use with the FIM10-1 ESSAILEC plug. Contact pins for the FIM10-1 are selected separately according to the conductor requirements.
The M10-P-C5A is specifically designed for extension mounting. The accessories required for this mounting arrangement, together with two COP-E-1 coding pins, are supplied with the socket.
TE Connectivity ENTRELEC ESSAILEC multicircuit test blocks provide a modular plug-and-play connection platform for measurement, monitoring, commissioning and protection applications where controlled and repeatable access to transformer and sensor secondary circuits is required.
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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...