Why Choose the ABB OVR T1-T2 N 50-440s P QS Surge Protective Device?
The ABB OVR T1-T2 N 50-440s P QS is a high-performance combined Type 1+2 surge protective device (SPD) designed to provide neutral-to-protective-earth surge protection in low-voltage electrical installations. As part of the advanced ABB OVR QuickSafe surge protection range, it combines lightning current protection with transient overvoltage protection for demanding industrial, commercial and infrastructure applications.
Designed specifically for N-PE protection, the OVR T1-T2 N 50-440s P QS can be used as the neutral protection element within suitable coordinated surge protection arrangements. Its pluggable construction simplifies inspection and replacement, while ABB QuickSafe technology supports reliable operation and straightforward maintenance within electrical distribution boards.
With an impulse current (Iimp) of 50 kA using a 10/350 µs waveform and a 440 V AC maximum continuous operating voltage, the OVR T1-T2 N 50-440s P QS is designed to handle high-energy lightning currents as well as transient overvoltages. The device is supplied under ABB order code 2CTB815710R5300.
Key Advantages
- Combined Type 1+2 surge protective device for lightning current and transient overvoltage protection.
- Designed specifically for N-PE neutral-to-protective-earth protection.
- 50 kA impulse current Iimp (10/350 µs) for high-energy lightning protection.
- 440 V AC maximum continuous operating voltage.
- ABB QuickSafe technology for dependable surge protection performance.
- Pluggable construction simplifies inspection, servicing and replacement.
- Suitable for coordinated protection in low-voltage electrical distribution systems.
- Compact DIN-rail format for professional electrical installations.
Key Features
- ABB OVR T1-T2 QuickSafe surge protection series.
- Combined Type 1+2 surge protective device.
- N-PE neutral-to-protective-earth protection mode.
- 50 kA Iimp lightning impulse current capability.
- 440 V AC maximum continuous operating voltage (Uc).
- Designed to handle lightning currents and transient switching overvoltages.
- Pluggable protection module for convenient maintenance.
- Visual status indication for straightforward inspection.
- DIN-rail mounting for integration into low-voltage distribution equipment.
Combined Lightning and Surge Protection for N-PE Applications
Combined Type 1+2 surge protective devices are designed to address both high-energy lightning currents and transient overvoltages within low-voltage electrical installations. Type 1 capability enables the protection system to handle lightning impulse currents characterised by a 10/350 µs waveform, while Type 2 protection helps limit transient surges caused by indirect lightning activity and electrical switching events.
The ABB OVR T1-T2 QuickSafe range is designed for coordinated protection of electrical distribution systems. The OVR T1-T2 N 50-440s P QS provides the N-PE protection function within suitable configurations, combining a high 50 kA lightning impulse current capability, 440 V AC continuous operating voltage and pluggable construction for straightforward maintenance.
Typical Applications
- N-PE lightning current and surge protection.
- Main low-voltage electrical distribution boards.
- Coordinated multi-pole surge protection assemblies.
- Industrial electrical installations.
- Commercial buildings and facilities.
- Installations requiring combined Type 1 and Type 2 protection.
- Building services and infrastructure installations.
- Protection systems for sensitive electrical and electronic equipment.
