Description
50kA Type 1+2 Surge Protection Device
Niglon SP12S-3PN Combined Lightning & Surge Arrestor – 3 Pole + Neutral
The Niglon SP12S-3PN 50kA Type 1+2 Surge Protection Device (SPD) is a high-performance surge and lightning arrestor, designed to protect electrical installations from transient overvoltages and direct lightning strikes. This four-module SPD provides comprehensive protection for TN-S earthing systems, making it ideal for buildings with lightning protection systems or high-risk locations.
Featuring a Type 1+2 MOV-based surge protection mechanism, this SPD ensures effective dissipation of high-energy surges, preventing damage to sensitive electrical equipment. It comes with a remote signal contact for external status monitoring and an intuitive green/red fault indicator for quick visual status checks.
Key Features
- Type 1+2 Combined SPD – Protects against both lightning-induced surges and transient overvoltages
- 3-Pole + Neutral (3PN) Configuration – Designed for TN-S earthing systems
- 50kA Maximum Discharge Current (Imax 8/20µs) – Handles high-energy surges
- 20kA Nominal Discharge Current (In 8/20µs) – Ensures continuous protection
- 275V Max Continuous Operating Voltage (Uc) – Suitable for standard electrical networks
- 1.5kV Voltage Protection Level (Up) – Ensures effective surge suppression
- Remote Signaller Contact – Enables external system monitoring
- Thermal Protection with Fault Indicator – Green (OK) / Red (Replace)
- DIN Rail Mounted (4 Modules Wide) – Easy integration into existing distribution boards
- UL94 V-0 Thermoplastic Housing – Flame-retardant for enhanced safety
- Complies with IEC 61643-11:2011 & IEC 61643-11:2012 – Meets international surge protection standards
Technical Specifications of the Niglon SP12S-3PN 50kA Type 1+2 Surge Protection Device
- Product Code: SP12S-3PN/50KA
- Type: Type 1+2 SPD
- Network System: TN-S
- Mode of Protection: L-PE, N-PE
- Protective Element: High Energy MOV
- Mounting: DIN Rail (35mm)
- Max Cable Size: 35mm²
- Terminal Screw Torque: 3.0Nm
- Remote Signaller: Yes (Max Cable 1.5mm²)
- Max Continuous Operating Voltage (Uc): 275V
- Nominal Discharge Current (In 8/20µs): 20kA
- Max Discharge Current (Imax 8/20µs): 50kA
- Voltage Protection Level (Up): 1.5kV
- Housing Material: Thermoplastic UL 94 V-0
- Thermal Protection: Yes
- Compliance: IEC 61643-11:2011, IEC 61643-11:2012
- Backup Protection: 125A (if required, see technical drawing)
Why Choose This Product?
The Niglon SP12S-3PN 50kA SPD provides robust and efficient surge protection for high-risk environments where lightning strikes and transient overvoltages pose a significant threat. Its remote monitoring capability, intuitive fault indication, and compliance with international standards make it a reliable choice for commercial and industrial applications.
Related Surge Devices – SP12S-3PN
Looking for a kit-based solution? The NSA2-240 SPD Kit offers pre-wired convenience.
You may also find the SP23S-3PN/C40KA SPD ideal for Type 2-only setups.
