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LS SPD Type 1+2+3 Surge Protection Device
Model: LSP40T
4-hour response · Pricing in SAR · Delivery across all KSA regions
LSP40T — LS SPD Type 1+2+3 Surge Protection Device
The LS LSP40T is a combined Type 1, Type 2, and Type 3 surge protection device (SPD) providing three-level coordinated protection against transient overvoltages from direct and indirect lightning strikes, switching surges, and electrostatic discharge events on low-voltage 230/400 V AC distribution systems. The LSP40T achieves a maximum discharge current (Imax) of 40 kA per phase for Type 2 protection and an impulse discharge current (Iimp) of 12.5 kA per phase for Type 1 direct strike protection, compliant with IEC 61643-11:2011 and EN 61643-11:2012 standards. The combined Type 1+2+3 design consolidates protection into a single compact DIN-rail-mounted unit — eliminating the traditional requirement for separately installed Type 1 coordinated SPDs at the main incoming panel and Type 2 SPDs at distribution boards — reducing material and installation cost while ensuring complete protection coordination is achieved.
The LSP40T incorporates thermally protected MOV (metal oxide varistor) elements with automatic disconnection via an internal thermal fuse when a MOV reaches end-of-life, preventing smouldering and fire risk in the panel. A red/green visual status indicator flag on the front face provides immediate visible confirmation of device health without a live test, and an optional remote indication terminal allows status monitoring in building management systems or alarm systems. The device connects in 3+1 configuration (3 phase conductors + neutral) via screw terminals accepting up to 35 mm² conductors, and the maximum protection level (Up) at nominal discharge current is 1.5 kV — well below the 2.5 kV withstand level of standard LV equipment per IEC 60664-1, ensuring effective protection of connected equipment.
Saudi Arabia has a significant lightning risk in coastal regions including Jeddah, Yanbu, and the Asir highlands, and the country's dry desert air with frequent sandstorms creates elevated static discharge and switching surge risk throughout the Kingdom. IEC 62305 Lightning Protection System standards, increasingly adopted by Saudi engineering consultancies and ARAMCO contractor specifications, mandate SPD installation at main incoming switchboards and all sub-distribution boards to protect sensitive electronic equipment, instrumentation, and automation systems. Vision 2030 infrastructure projects including NEOM, the Red Sea Project, and Qiddiya all specify IEC 62305-compliant lightning and surge protection as a design requirement, creating substantial demand for code-compliant SPD products across the construction sector.
Razz Middle East stocks the LS LSP40T and other LSP series SPDs for standard LV distribution applications, with same-week delivery to panel builders and electrical contractors throughout Saudi Arabia. We provide SPD coordination calculations in accordance with IEC 62305-4 for projects requiring formal lightning protection design documentation. SAR pricing with volume discounts is available for contractors and panel builders working on NEOM, Red Sea Project, and SEC-approved building projects. Two-year warranty is included with all units.
Technical Specifications
Full specifications for the LSP40T
- Type
- 1+2+3 combined
- Max Discharge Current Imax
- 40 kA/phase (Type 2)
- Impulse Current Iimp
- 12.5 kA/phase (Type 1)
- Protection Level Up
- 1.5 kV
- System Voltage
- 230/400 V AC TN/TT
- Configuration
- 3+1 (3P+N)
- Standards
- IEC 61643-11:2011
- Status Indicator
- Visual flag + remote indication terminal
Key Features & Benefits
- Combined Type 1+2+3 design provides complete three-level protection coordination in a single DIN-rail unit, eliminating the requirement for separately installed Type 1 and Type 2 SPDs at different panel locations.
- 40 kA Imax per phase Type 2 rating and 12.5 kA Iimp per phase Type 1 rating cover both indirect lightning-induced surges and direct strikes to the building external lightning protection system.
- Thermally protected MOV elements with automatic thermal fuse disconnection prevent smouldering and fire risk when a varistor reaches end-of-life — a critical safety feature for unattended panel locations.
- 1.5 kV protection level (Up) is well below the 2.5 kV equipment withstand level of standard IEC 60664-1 LV equipment, ensuring connected electronics and automation equipment are effectively protected.
- Visual status indicator flag (green=healthy, red=failed) and optional remote indication terminal enable status monitoring without live testing — important for quarterly maintenance checks on SPDs in live panels.
- Screw terminals accepting up to 35 mm² conductors allow direct connection to large main incoming feeder cables without additional lugs or reducing adapters in main distribution board installations.
Industrial Applications in Saudi Arabia
- Main incoming switchboard surge protection for industrial and commercial buildings in Jeddah, Yanbu, and Asir region where Saudi Arabia's highest lightning strike density creates significant direct strike risk.
- LV distribution board SPD protection for sensitive automation and instrumentation panels at ARAMCO, SABIC, and SWCC process facilities in accordance with IEC 62305-4 and SAES electrical standards.
- Surge protection for solar PV inverter AC distribution panels at Vision 2030 renewable energy projects, where PV systems on flat desert sites are exposed to elevated lightning and switching surge risk.
- NEOM, Red Sea Project, and Qiddiya infrastructure SPD installations meeting the IEC 62305 lightning protection design requirements specified in these projects' electrical engineering standards.
- Telecoms and data centre LV main distribution panel protection where even low-energy surge events can corrupt data or damage sensitive electronic equipment without adequate SPD coordination.
Industrial Supplier in Saudi Arabia
Get a Quote for the LS SPD Type 1+2+3 Surge Protection Device
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Frequently Asked Questions — LSP40T
Common questions from buyers in Saudi Arabia and the GCC