Why Choose the ABB OVR T1-T2 3N 100-255 P TS Surge Protective Device?
The ABB OVR T1-T2 3N 100-255 P TS is a high-performance combined Type 1 and Type 2 surge protective device (SPD) designed for the main distribution boards of three-phase plus neutral TN-S and TT low-voltage systems. It provides protection against high-energy lightning currents and transient overvoltages, making it suitable for industrial facilities, offices, public buildings and large residential installations.
Designed for 230/400 V AC systems, the OVR T1-T2 3N 100-255 P TS provides an impulse current Iimp of 25 kA per protected path using the 10/350 µs lightning-current waveform and a total impulse-current capability of 100 kA. It also provides a nominal discharge current of 25 kA and a maximum discharge current of 60 kA using the 8/20 µs waveform.
The device features a 3+1 configuration with four protected poles, pluggable protection modules, visual status indication and TS remote signalling through one normally open and one normally closed auxiliary contact. With a voltage protection level of 1.5 kV and short-circuit withstand capability of 100 kA, it provides robust incoming surge protection for demanding electrical installations.
Key Advantages
- Combined Type 1 + Type 2 protection against lightning currents and transient overvoltages.
- Designed for 230/400 V AC TN-S and TT systems.
- 100 kA total impulse-current capability using a 10/350 µs waveform.
- 25 kA impulse current Iimp per protected path.
- 60 kA maximum discharge current using an 8/20 µs waveform.
- 25 kA nominal discharge current for dependable surge suppression.
- Low 1.5 kV voltage protection level helps protect downstream equipment.
- TS auxiliary contacts provide remote operating-status monitoring.
- Pluggable construction simplifies servicing and replacement.
- 100 kA short-circuit withstand capability supports demanding installations.
Key Features
- ABB OVR T1-T2 series.
- Combined Type 1 + Type 2 surge protective device.
- 3+1 configuration for three-phase plus neutral systems.
- Suitable for TN-S and TT distribution systems.
- Four protected poles.
- 25 kA impulse current Iimp using a 10/350 µs waveform.
- 100 kA total impulse current using a 10/350 µs waveform.
- 25 kA nominal discharge current In.
- 60 kA maximum discharge current Imax.
- 1.5 kV voltage protection level Up.
- 255 V AC maximum continuous operating voltage for the 3+1 arrangement.
- Pluggable protection modules with visual status indication.
- 1 NO + 1 NC auxiliary contacts for remote signalling.
- DIN-rail mounting for main distribution boards and switchgear.
Combined Lightning-Current and Surge Protection for Main Distribution Boards
Type 1 surge protective devices are designed to conduct the high-energy 10/350 µs lightning-current impulses that can enter an installation through the incoming electrical supply, while Type 2 protection limits lower-energy transient overvoltages further within the distribution system. The ABB OVR T1-T2 3N 100-255 P TS combines both functions in one pluggable assembly, making it particularly suitable for installation at the main distribution board.
Its 100 kA total lightning impulse-current capability, 60 kA maximum 8/20 µs discharge current and 1.5 kV protection level provide robust protection for downstream electrical and electronic equipment. Visual indication and TS remote contacts support both local and remote monitoring of the SPD's operating condition.
Typical Applications
- Main distribution boards in 230/400 V AC installations.
- Three-phase plus neutral TN-S electrical systems.
- Three-phase plus neutral TT electrical systems.
- Industrial facilities and manufacturing sites.
- Office and commercial buildings.
- Public and institutional buildings.
- Large residential developments.
- Installations exposed to lightning-current surges.
- Switchgear requiring remote SPD status monitoring.
