Why Choose the ABB OVR T1-T2 1N 12.5-275s P QS Surge Protective Device?
The ABB OVR T1-T2 1N 12.5-275s P QS is a high-performance combined Type 1+2 surge protective device (SPD) designed to protect single-phase low-voltage electrical installations against lightning currents and transient overvoltages. As part of the advanced ABB OVR QuickSafe surge protection range, it combines Type 1 lightning current protection and Type 2 surge protection in a compact 1+1 configuration.
Designed for single-phase installations with neutral, the OVR T1-T2 1N 12.5-275s P QS provides coordinated protection between line, neutral and protective earth. Its pluggable construction allows straightforward servicing and replacement of protection modules, while ABB QuickSafe technology provides dependable status indication and enhanced protection throughout the service life of the device.
With an impulse current (Iimp) of 12.5 kA per pole using a 10/350 µs waveform, maximum discharge current (Imax) of 80 kA using an 8/20 µs waveform and 275 V AC maximum continuous operating voltage on the line protection path, the OVR T1-T2 1N 12.5-275s P QS provides robust protection for single-phase 230 V AC electrical systems. The device is supplied under ABB order code 2CTB815710R1300.
Key Advantages
- Combined Type 1+2 surge protective device for lightning current and transient overvoltage protection.
- 1+1 configuration for single-phase electrical systems with neutral.
- 12.5 kA impulse current Iimp (10/350 µs) per pole.
- 80 kA maximum discharge current Imax (8/20 µs).
- 275 V AC maximum continuous operating voltage on the line protection path.
- Designed for 230 V AC single-phase installations.
- ABB QuickSafe technology for reliable surge protection performance and status indication.
- Pluggable protection modules simplify inspection, servicing and replacement.
- DIN-rail mounting enables straightforward installation in electrical distribution boards.
Key Features
- ABB OVR T1-T2 QuickSafe surge protection series.
- Combined Type 1+2 surge protective device.
- 1+1 protection configuration for line, neutral and protective earth.
- 12.5 kA Iimp per pole lightning impulse current capability.
- 80 kA Imax maximum discharge current.
- 275 V AC maximum continuous operating voltage (Uc) for the L-N protection path.
- Designed for 230 V AC nominal systems.
- Pluggable construction for convenient maintenance.
- Visual status indication for straightforward inspection.
- Compact DIN-rail format for low-voltage distribution equipment.
Combined Lightning and Surge Protection for Single-Phase Installations
Combined Type 1+2 surge protective devices provide protection against both high-energy lightning currents and transient overvoltages. Type 1 capability enables the SPD to discharge lightning impulse currents characterised by a 10/350 µs waveform, while Type 2 performance limits surge currents characterised by an 8/20 µs waveform, helping protect downstream electrical and electronic equipment.
The ABB OVR T1-T2 QuickSafe range is designed for coordinated protection of low-voltage installations. The OVR T1-T2 1N 12.5-275s P QS combines line-to-neutral and neutral-to-earth protection in a 1+1 arrangement, making it suitable for single-phase installations where coordinated lightning and surge protection is required at the electrical distribution board.
Typical Applications
- Single-phase low-voltage electrical distribution boards.
- 230 V AC electrical installations.
- Residential and commercial electrical distribution systems.
- Industrial single-phase electrical circuits.
- Installations requiring combined lightning current and surge protection.
- Building services and infrastructure systems.
- Machine and automation electrical panels.
- Protection of sensitive electrical and electronic equipment.
