Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CTB815704R1800 ABB OVR T2 3L 40-275s P QS Type 2 Surge Protection Device
ABB OVR T2 3L 40-275s P QS is a pluggable three-pole Type 2 surge protection device with 40 kA maximum discharge current, 20 kA nominal discharge current, 275 V AC maximum continuous operating voltage and Safety Reserve technology for 230/400 V TN-C electrical systems.
£251.75
Why Choose the ABB OVR T2 3L 40-275s P QS Surge Protection Device?
The ABB OVR T2 3L 40-275s P QS, order code 2CTB815704R1800, is a pluggable Type 2 surge protection device (SPD) designed to protect three-phase low-voltage electrical installations against transient overvoltages caused by indirect lightning and electrical switching events. Part of the ABB OVR QuickSafe range, it combines high surge-discharge capability with ABB Safety Reserve technology for TN-C electrical distribution systems.
Designed for 230/400 V AC systems, the OVR T2 3L 40-275s P QS provides a 20 kA nominal discharge current (In) and a 40 kA maximum discharge current (Imax) with an 8/20 µs waveform. Its maximum continuous operating voltage (Uc) is 275 V AC, while the voltage protection level (Up) is 1.4 kV, helping limit transient voltages reaching downstream equipment.
The device incorporates ABB's Safety Reserve system, patented QuickSafe technology, an integrated thermal disconnector and an end-of-life indicator. Its pluggable three-pole construction enables straightforward cartridge replacement, while support for backup protection up to 160 A fuse or 125 A MCB makes it suitable for robust commercial, residential and industrial distribution-board applications.
Key Advantages
- Type 2 surge protection for three-phase low-voltage distribution systems.
- 40 kA maximum discharge current (Imax) with an 8/20 µs waveform.
- 20 kA nominal discharge current (In) with an 8/20 µs waveform.
- 1.4 kV voltage protection level (Up) helps limit transient overvoltages reaching downstream equipment.
- 275 V AC maximum continuous operating voltage.
- Safety Reserve technology supports continued protection and planned maintenance.
- Patented QuickSafe technology provides fast, reliable disconnection at end of life.
- Integrated thermal disconnector and end-of-life indicator simplify condition monitoring.
- Pluggable construction enables straightforward replacement of individual protection cartridges.
Key Features
- ABB OVR QuickSafe surge protection range.
- Type 2 / Class II surge protection device.
- Three-pole configuration with three protected lines.
- Designed for TN-C low-voltage distribution systems.
- 230 V AC rated voltage.
- 230/400 V AC nominal system voltage.
- 275 V AC maximum continuous operating voltage.
- 20 kA nominal discharge current (8/20 µs).
- 40 kA maximum discharge current (8/20 µs).
- 2 kA impulse current (10/350 µs).
- 1.4 kV voltage protection level.
- Safety Reserve system.
- Integrated thermal disconnector.
- Integrated end-of-life indicator.
- Preventive-maintenance functionality.
- Backup protection up to 160 A gG/gL fuse or 125 A curve B/C MCB.
- Fast response time of <25 ns.
- DIN rail mounting with three-module construction.
- IP20 protection rating.
Three-Phase Type 2 Protection with Safety Reserve Technology
Type 2 surge protection devices are designed to discharge transient currents generated by indirect lightning strikes and switching events that create induced or conducted overvoltages on low-voltage power distribution networks. They are commonly installed in main distribution switchboards and subdistribution boards, where their low residual voltage helps protect downstream electrical and electronic equipment.
The ABB OVR T2 3L 40-275s P QS combines a 40 kA maximum 8/20 µs discharge current with ABB's Safety Reserve and QuickSafe technologies. Its integrated status indication and preventive-maintenance functionality help identify when servicing is required, while the pluggable design allows the individual OVR T2 40-275s C QS phase cartridges to be replaced without replacing the complete SPD assembly.
Typical Applications
- 230/400 V AC TN-C electrical distribution systems.
- Three-phase low-voltage distribution boards.
- Main electrical distribution switchboards.
- Subdistribution boards.
- Residential and multi-residential electrical installations.
- Commercial building electrical systems.
- Industrial low-voltage distribution systems.
- Protection of sensitive electrical and electronic equipment.
- Protection against indirect lightning and switching-induced transient overvoltages.
Technical Specifications
Tick the specs you need, then view products that match.
| Remote Signal | No | |
|---|---|---|
| Device Type | Surge protection device | |
| SPD Type | Type 2 | |
| Poles | 3-pole | |
| Earthing System | TN-C | |
| Impulse Current Iimp (kA) | 2 kA | |
| Series | OVR T2 QuickSafe | |
| Order code / MPN | 2CTB815704R1800 | |
| EAN | 3660308525314 | |
| Product group | Surge Protection Devices | |
| Product type | Type 2 surge protection device | |
| SPD classification | Type 2 / Class II | |
| Protection mode | L-PEN | |
| Number of poles | 3 | |
| Number of protected lines | 3 | |
| Low-voltage distribution system | TN-C | |
| Rated voltage | 230 V AC | |
| Nominal system voltage | 230/400 V AC | |
| Maximum continuous operating voltage (Uc) | 275 V AC | |
| Maximum continuous operating voltage DC | 350 V DC | |
| Frequency | 47–63 Hz | |
| Nominal discharge current (In, 8/20 µs) | 20 kA | |
| Maximum discharge current (Imax, 8/20 µs) | 40 kA | |
| Impulse current (Iimp, 10/350 µs) | 2 kA | |
| Voltage protection level (Up, L-PE) | 1.4 kV | |
| Short-circuit withstand | 100 kA | |
| Ground residual current | <1000 µA | |
| TOV withstand | 337 V | |
| Safety Reserve | Yes | |
| Preventive-maintenance function | Yes | |
| Integrated thermal disconnector | Yes | |
| End-of-life indicator | Yes | |
| Maximum backup MCB | 125 A, curve B or C | |
| Maximum backup fuse | 160 A, gG/gL | |
| Response time | <25 ns | |
| Solid conductor range | 2.5–35 mm² | |
| Stranded conductor range | 2.5–25 mm² | |
| Stripping length | 12.5 mm | |
| Mounting type | DIN rail | |
| Module width | 3 modules | |
| Protection rating | IP20 | |
| Maximum operating altitude | 2000 m | |
| Fire resistance | UL 94 V-0 | |
| Standards | IEC 61643-11 / EN 61643-11 | |
| Dimensions (H × W × D) | 88 × 53.4 × 69.4 mm | |
| Weight | 0.45 kg | |
| Replacement phase cartridge | OVR T2 40-275s C QS | |
| Replacement cartridge order code | 2CTB815704R2600 | |
| Construction | Pluggable |
Frequently Asked Questions
What is the ABB OVR T2 3L 40-275s P QS used for?
The ABB OVR T2 3L 40-275s P QS is a three-pole Type 2 surge protection device designed to protect 230/400 V AC TN-C low-voltage electrical installations against transient overvoltages caused by indirect lightning and electrical switching events.
What are the discharge current ratings of the OVR T2 3L 40-275s P QS?
The device has a 20 kA nominal discharge current (In) and a 40 kA maximum discharge current (Imax), measured using an 8/20 µs waveform. It also has a 2 kA impulse current (Iimp) with a 10/350 µs waveform.
What does Safety Reserve mean on this ABB surge protection device?
ABB's Safety Reserve system provides an additional protection stage designed to support continued surge protection and planned maintenance when the primary protection stage reaches the end of its service life.
Does the OVR T2 3L 40-275s P QS provide remote signalling?
No. The OVR T2 3L 40-275s P QS provides local status indication and preventive-maintenance functionality but does not include the remote signalling contacts fitted to the corresponding P TS QS version.
Can the protection cartridges be replaced?
Yes. The OVR T2 3L 40-275s P QS has a pluggable construction. The specified replacement phase cartridge is the ABB OVR T2 40-275s C QS, order code 2CTB815704R2600.
Trusted Surge Protection from ABB
ABB OVR Type 2 surge protection devices are designed to help protect low-voltage electrical distribution systems against transient overvoltages, with QuickSafe, Safety Reserve and pluggable protection technologies supporting effective protection and planned maintenance.
