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2CTB803973R1600 ABB OVR T2-T3 3N 20-275 P TS QS Type 2+3 Surge Protection Device
ABB OVR T2-T3 3N 20-275 P TS QS is a pluggable Type 2+3 surge protection device with 20 kA maximum discharge current, 5 kA nominal discharge current, 275 V AC maximum continuous operating voltage and remote signalling for 230/400 V TT and TN-S electrical installations.
£375.05
Why Choose the ABB OVR T2-T3 3N 20-275 P TS QS Surge Protection Device?
The ABB OVR T2-T3 3N 20-275 P TS QS, order code 2CTB803973R1600, is a pluggable Type 2+3 surge protection device (SPD) designed to protect low-voltage electrical installations and sensitive electronic equipment against transient overvoltages caused by indirect lightning and electrical switching events. As part of the ABB OVR QuickSafe surge protection range, it combines Type 2 surge-current handling with the low residual voltage characteristics associated with Type 3 protection.
Designed for 230/400 V AC three-phase plus neutral TT and TN-S networks, this SPD uses a 3+1 protection configuration and provides a maximum discharge current (Imax) of 20 kA, a nominal discharge current (In) of 5 kA and an impulse current (Iimp) of 2 kA. Its overall voltage protection level of 1.5 kV helps limit transient voltage reaching downstream electrical and electronic equipment.
The OVR T2-T3 3N 20-275 P TS QS has a 275 V AC maximum continuous operating voltage and features pluggable protection elements, optical status indication and integrated remote signalling auxiliary contacts. Its compact four-module DIN rail format makes it suitable for residential, commercial and industrial distribution boards where effective surge protection and remote status monitoring are required.
Key Advantages
- Combined Type 2+3 surge protection for three-phase plus neutral electrical installations.
- 20 kA maximum discharge current (Imax) with an 8/20 µs waveform.
- 5 kA nominal discharge current (In) with an 8/20 µs waveform.
- 2 kA impulse current (Iimp) with a 10/350 µs waveform.
- 1.5 kV overall voltage protection level (Up) helps protect sensitive downstream equipment.
- 275 V AC maximum continuous operating voltage for 230/400 V AC systems.
- Integrated remote signalling auxiliary contacts for monitoring SPD status.
- Pluggable QuickSafe construction simplifies inspection, maintenance and replacement.
- Suitable for TT and TN-S distribution networks.
Key Features
- ABB OVR QuickSafe surge protection range.
- Type 2+3 / Class II+III surge protection device.
- 3+1 protection configuration for three-phase plus neutral systems.
- 20 kA maximum discharge current (8/20 µs).
- 5 kA nominal discharge current (8/20 µs).
- 2 kA impulse current (10/350 µs).
- 275 V AC maximum continuous operating voltage.
- 1.5 kV overall voltage protection level.
- 1.4 kV L-N voltage protection level.
- 1.4 kV N-PE voltage protection level.
- Integrated optical status indication.
- 1 NO + 1 NC auxiliary contacts for remote signalling.
- Pluggable protection elements for straightforward maintenance.
- DIN rail mounting with four-module construction.
- IP20 protection rating.
- Compliant with IEC 61643-11 / EN 61643-11.
Reliable Type 2+3 Protection for Sensitive Equipment
Type 2+3 surge protection devices combine the ability to discharge surge currents associated with indirect lightning strikes with a low residual voltage suitable for protecting sensitive electronic equipment. Type 2 performance addresses surge currents characterised by an 8/20 µs waveform, while Type 3 characteristics provide additional protection against transient overvoltages close to sensitive downstream equipment.
The ABB OVR T2-T3 3N 20-275 P TS QS combines these protection characteristics with pluggable QuickSafe construction, optical status indication and remote signalling. It can be installed in sub-distribution boards or close to sensitive equipment, making it suitable for installations where effective surge protection, straightforward maintenance and remote monitoring are required.
Typical Applications
- 230/400 V three-phase plus neutral electrical installations.
- TT and TN-S low-voltage distribution networks.
- Residential electrical distribution systems.
- Commercial building electrical installations.
- Industrial control and distribution panels.
- Sub-distribution and intermediate distribution boards.
- Protection of sensitive electrical and electronic equipment.
- Protection against indirect lightning-induced and electrical switching surges.
Technical Specifications
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| Remote Signal | Yes | |
|---|---|---|
| SPD Type | Type 2+3 | |
| Poles | 3-pole + N | |
| Earthing System | TN-S, TT | |
| Device Type | Surge protection device | |
| Impulse Current Iimp (kA) | 2 kA | |
| Series | OVR QuickSafe | |
| Order code / MPN | 2CTB803973R1600 | |
| Product group | Surge Protection Devices | |
| Product type | Type 2+3 surge protection device | |
| SPD classification | Type 2+3 / Class II+III | |
| Protection configuration | 3+1 | |
| Number of poles | 4 | |
| Number of protected poles | 4 | |
| Nominal system voltage | 230/400 V AC | |
| Frequency | 45–65 Hz | |
| Maximum continuous operating voltage (Uc) | 275 V AC | |
| Nominal discharge current (In, 8/20 µs) | 5 kA | |
| Maximum discharge current (Imax, 8/20 µs) | 20 kA | |
| Impulse current (Iimp, 10/350 µs) | 2 kA | |
| Voltage protection level (Up) | 1.5 kV | |
| Voltage protection level (L-N) | 1.4 kV | |
| Voltage protection level (N-PE) | 1.4 kV | |
| Distribution systems | TT, TN-S | |
| Rated service short-circuit breaking capacity | 100 kA | |
| Short-circuit withstand | 100 kA | |
| Maximum backup protection | 125 A | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Status indication | Optical | |
| Mounting type | DIN rail | |
| Module width | 4 modules | |
| Protection rating | IP20 | |
| Operating temperature | -40 to +80 °C | |
| Power loss | 29 mW | |
| Standards | IEC 61643-11 / EN 61643-11 | |
| Dimensions (H × W × D) | 95 × 71.2 × 58 mm | |
| Weight | 0.48 kg | |
| Construction | Pluggable |
Frequently Asked Questions
What is the ABB OVR T2-T3 3N 20-275 P TS QS used for?
The ABB OVR T2-T3 3N 20-275 P TS QS is a Type 2+3 surge protection device designed to protect 230/400 V three-phase plus neutral electrical installations and sensitive equipment against transient overvoltages caused by indirect lightning and electrical switching events.
What is the maximum discharge current of the OVR T2-T3 3N 20-275 P TS QS?
The device has a maximum discharge current (Imax) of 20 kA with an 8/20 µs waveform and a nominal discharge current (In) of 5 kA.
What is the maximum continuous operating voltage?
The ABB OVR T2-T3 3N 20-275 P TS QS has a maximum continuous operating voltage (Uc) of 275 V AC and is designed for 230/400 V AC systems.
Does this ABB surge protection device provide remote signalling?
Yes. The TS version includes integrated auxiliary contacts for remote signalling, with one normally open and one normally closed contact for monitoring the SPD status.
Where is the OVR T2-T3 3N 20-275 P TS QS typically installed?
The device is designed for DIN rail installation in sub-distribution and electrical distribution boards and can also be installed close to sensitive equipment in compatible TT and TN-S three-phase plus neutral networks.
Trusted Surge Protection from ABB
ABB OVR QuickSafe surge protection devices provide coordinated protection for low-voltage electrical installations, helping safeguard residential, commercial and industrial electrical systems and sensitive electronic equipment against damaging transient overvoltages.
