Description
Type 1+2+3 SPD for 3-Phase TN-S and TNC-S Earthing
Surge Devices 10811/LED – Full Lightning & Surge Protection
The Surge Devices 10811/LED Type 1+2+3 SPD for TN-S and TNC-S systems is engineered for 3-phase electrical installations with TN-S and TNC-S earthing systems. It delivers high-performance protection against direct lightning strikes, switching surges, and transient overvoltages, making it ideal for industrial, commercial, and high-end residential setups. Designed for DIN rail mounting, this SPD supports BS EN 62305 and 18th Edition BS 7671 compliance.
Key Features – 3-Phase Type 1+2+3 SPD for TN Systems
- SPD Classification: Type 1+2+3 (BS EN 61643-11), Class I+II+III
- Earthing Systems: Suitable for TN-S and TNC-S configurations
- Phase Design: Compatible with 3-phase networks (L1, L2, L3, N, PE)
- Discharge Ratings:
- Lightning Current (10/350μs): 25kA per mode
- Nominal Discharge (8/20μs): 25kA
- Maximum Discharge (8/20μs): 80kA
- Let-Through Voltage: <600V
- Response Time: <25 nanoseconds
- Status Indicators: Green LED for visual check
- Remote Contact: Volt-free changeover for BMS/alarm integration (0.5A/250V)
- Mounting: DIN rail, 4-module format
- Wiring: Up to 25mm² solid core, 4Nm terminal torque
- Standards Compliance:
- BS EN 62305 (Lightning Protection)
- BS EN 61643-11 (SPD Standard)
- BS 7671 (18th Edition Wiring Regs)
Ideal Applications
- TN-S Surge Protection for Smart Homes – Secure power panels, appliances, and home automation
- TNC-S Industrial SPD – Ideal for switchgear, motors, and control panels
- Commercial 3-Phase Surge Suppression – Protect office systems, HVAC, and IT networks
- LPL Class I SPD for BS EN 62305 Compliance – Trusted for critical and regulated electrical infrastructure
Summary
The Surge Devices 10811/LED provides full-spectrum surge protection for 3-phase systems with TN-S and TNC-S earthing. Built to meet BS EN 62305 standards, it’s ideal for critical installs requiring lightning-class defense and remote monitoring support.
Looking for Related Surge Devices SPDs?
- 10811/LEDENCM – SPD with 63A MCB in Metal Enclosure
This version includes a 63A MCB and comes pre-mounted in a rugged IP65-rated metal enclosure, ideal for tougher environments. - 10811/LEDENC – SPD in Polycarbonate IP65 Enclosure
Same high-level surge protection as this model, but housed in a lightweight IP65 polycarbonate enclosure—perfect for outdoor or space-limited installs.
