Phoenix Contact TRABTECH TT 1-PE/S 230 Type 1 SPD

The Phoenix Contact TRABTECH TT 1-PE/S 230 is a DIN-rail-mounted Type 1 surge protection device (SPD) for 230 V AC TN-S and TN-C-S networks, rated at 25 kA (10/350 μs) maximum impulse current (Iimp) per IEC 61643-11 Type 1 classification and tested to the 10/350 μs lightning-stroke current waveform that represents the energy of a direct or near-direct lightning strike on the building lightning protection system. The Type 1 classification places the TRABTECH TT 1-PE/S at the highest energy tier of LV surge protection, intended for installation at the main LV panel incomer — immediately downstream of the energy-limiting class of SPD exposure, before any downstream distribution that would be damaged by the full 10/350 μs stroke energy. The SPD uses a spark-gap-based technology (rather than the MOV technology of Type 2 devices) to handle the high-energy 10/350 μs waveform without degradation, providing a durable long-service-life device suitable for Saudi industrial environments where the surge protection at the main incomer must remain reliable for the 25–30 year life of the building's electrical installation.

The TRABTECH TT 1-PE/S is designed for TN-S systems (separate PE and N conductors) and TN-C-S systems (PEN conductor in the MV/LV transformer, then split to PE and N at the main LV panel), which are the standard earthing system configurations in Saudi Arabia per Saudi Electrical Code (SEC) and IEC 60364. In a TN-S system, the SPD is connected between L-PE and N-PE, providing both common-mode and differential-mode protection paths. The series impedance (Z) of the spark-gap discharge path is lower than that of an MOV at equivalent peak current, resulting in a lower voltage protection level during the 10/350 μs stroke — important because the panel equipment voltage withstand (Uw) is typically 4 kV or 6 kV at the main panel incomer level, and the Type 1 SPD must clamp below this level to protect the downstream panel equipment and the Type 2 SPD that follows in the protection cascade.

In Saudi Arabia, Type 1 SPD installation is mandatory per IEC 62305-4 (Protection against lightning — Electrical and electronic systems within structures) at the main LV panel of any building with an external lightning protection system (LPS), and recommended by IEC 62305-4 for buildings without an LPS but in high-risk lightning zones — which includes the majority of Saudi industrial buildings in the Eastern Province and Jubail area. Saudi Aramco's GI-0476 (Surge Protection of Instrumentation and Control Equipment) requires Type 1 SPD installation at the main LV incomer of all process facility electrical buildings, and ARAMCO's Third Party Technical Audit teams verify SPD installation as part of pre-startup inspection checklists. The TRABTECH TT 1-PE/S meets GI-0476 requirements for main-incomer Type 1 protection and carries both IEC 61643-11 test reports and CE declarations for ARAMCO HSE and SEC approval submissions. SABIC's engineering standards for new petrochemical plant electrical rooms at Jubail IV require Type 1 SPD at the main LV incomer per IEC 62305 compliance, making the TRABTECH TT 1-PE/S a standard item in SABIC Jubail expansion electrical panel BOM.

Razz Middle East stocks the TRABTECH TT 1-PE/S in both 230 V (single-phase TN-S) and 400 V (three-phase TN-S) variants in Riyadh and Jeddah. Our team provides complete Type 1 to Type 3 SPD system design per IEC 62305-4 and ARAMCO GI-0476, including: lightning risk assessment per IEC 62305-2, SPD energy coordination between Type 1 (Iimp 25 kA) and Type 2 (Imax 40 kA) and Type 3 (Imax 5 kA) devices to verify that energy sharing does not overload any device, and SPD protection level cascade confirmation. All TRABTECH TT 1-PE/S supplies include Phoenix Contact CE declarations, IEC 61643-11 test reports, and SASO import conformity documentation for Saudi Customs clearance.