Description
⚡Single Phase Lightning & Surge Arrester with Visual Window & Remote Monitoring
⚡Surge Devices SY12325KA2P/ENCM Type 1,2,3 SPD & 63A MCB – IP65 Housing for TT, TN-S, TNC-S
The Surge Devices SY12325KA2P/ENCM Type 1+2+3 SPD with MCB is a SPD for single-phase TT, TN-S, and TNC-S systems. Designed to guard sensitive installations against direct lightning strikes and transient overvoltages, it includes 25kA protection, remote signalling, and a 1P 63A MCB. The unit is housed in a weatherproof IP65 polycarbonate enclosure for reliable performance in harsh conditions.
Key Features – Type 1+2+3 SPD with MCB for TT / TN-S / TNC-S
- Surge Classification: Type 1+2+3 Combined Arrester
- Earthing System Support: TT, TN-S, and TNC-S
- Discharge Ratings:
- Iimp: 25kA total (10/350μs waveform)
- In: 20kA (8/20μs)
- Up: <1.3kV let-through voltage
- Response Time: <25ns
- Max Voltage (Uc): 275V AC
- Temporary Overvoltage (TOV): 335V / 5s
- Remote Signal Contact: Volt-free changeover output for BMS, lights, buzzers
- Pluggable Cartridges: Replaceable surge modules (L & N/PE)
- Status Window: Clear visual LED/flag indicator
- Mounting: 35mm DIN rail
- Backup Protection:
- Pre-installed 1P 63A MCB
- Short-circuit withstand up to 25kA
- Recommended Cable Size: 16–25mm²
- Enclosure: IP65-rated polycarbonate, suitable for external wall or utility mounting
- Standards Compliance:
- BSEN 62305 (Lightning Protection)
- BSEN 61643-11 (SPD Devices)
- BS 7671 (18th Edition Wiring Regs)
Ideal Applications
- Single-phase mains panels – Protect home or commercial systems from lightning events
- Solar inverter inputs – Prevents surges from reaching delicate PV components
- TT system consumer units – Fully compliant SPD with included circuit protection
- Smart buildings or BMS sites – Enables active surge status monitoring
- Retrofit-friendly installs – Self-contained surge kit for fast surface or wall mounting
Summary
The Surge Devices SY12325KA2P/ENCM is a fully compliant Type 1+2+3 SPD for single-phase TT, TN-S, and TNC-S installations. It combines 25kA surge capacity, remote monitoring, status indication, and a 1P 63A MCB, all within a weatherproof IP65 enclosure. Perfect for PV, EV, and residential panels.
Already have an MCB or prefer to use your own?
- SY12325KA2P/ENC – Same Enclosure, No MCB
This version includes the same IP65 box and SPD unit, ready for pairing with your chosen breaker. - SY12325KA2P – SPD Module Only
Need flexibility? Choose the compact DIN-mount version to integrate within an existing panel.
