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2CTB815710R2300 ABB OVR T1-T2 4L 12.5-275s P QS Type 1 + Type 2 Surge Protective Device
ABB OVR T1-T2 4L 12.5-275s P QS 2CTB815710R2300 is a four-pole pluggable Type 1 + Type 2 surge protective device for 230/400 V AC TN-S systems with 12.5 kA impulse current per pole, 80 kA maximum discharge current and QuickSafe Safety Reserve technology.
£384.98
Why Choose the ABB OVR T1-T2 4L 12.5-275s P QS Surge Protective Device?
The ABB OVR T1-T2 4L 12.5-275s P QS is a high-performance combined Type 1 + Type 2 surge protective device (SPD) designed to protect three-phase low-voltage electrical installations against lightning currents and transient overvoltages. Identified by ABB order code 2CTB815710R2300, this four-pole device forms part of the ABB OVR QuickSafe surge protection range and is designed specifically for TN-S electrical distribution systems.
This combined lightning and surge arrester provides an impulse current rating of 12.5 kA per pole using a 10/350 µs waveform, together with an 80 kA maximum discharge current and 30 kA nominal discharge current. ABB QuickSafe technology incorporates an end-of-life indicator and Safety Reserve functionality, helping maintain basic surge protection until a worn protection cartridge can be replaced.
With a 230/400 V AC nominal system voltage, 275 V AC maximum continuous operating voltage and 1.3 kV voltage protection level, the OVR T1-T2 4L 12.5-275s P QS provides robust protection for main electrical distribution boards. Its four-module pluggable design mounts on a standard 35 mm DIN rail and enables straightforward cartridge replacement without rewiring the complete surge protection assembly.
Key Advantages
- Combined Type 1 + Type 2 lightning and surge protection in one device.
- Four-pole configuration designed for three-phase TN-S electrical systems.
- 12.5 kA impulse current (Iimp, 10/350 µs) per pole for lightning-current protection.
- 80 kA maximum discharge current (Imax) for high-energy transient protection.
- 30 kA nominal discharge current (In) for dependable surge protection.
- Low 1.3 kV voltage protection level (Up) helps protect downstream equipment.
- ABB QuickSafe technology provides clear end-of-life indication.
- Safety Reserve functionality maintains basic protection pending cartridge replacement.
- Pluggable protection cartridges simplify servicing and maintenance.
- Compact four-module design for 35 mm DIN-rail mounting.
Key Features
- ABB OVR QuickSafe series.
- Type 1 + Type 2 / Class I + II surge protection.
- Four-pole configuration.
- Designed for TN-S low-voltage distribution systems.
- 12.5 kA impulse current (Iimp, 10/350 µs).
- 80 kA maximum discharge current (Imax, 8/20 µs).
- 30 kA nominal discharge current (In, 8/20 µs).
- 230/400 V AC nominal system voltage.
- 275 V AC maximum continuous operating voltage (Uc).
- 1.3 kV voltage protection level (Up).
- Integrated Safety Reserve and end-of-life indication.
- Replaceable plug-in protection modules.
- IP20 degree of protection.
- Four-module DIN-rail-mounted construction.
Combined Lightning and Surge Protection for TN-S Systems
Combined Type 1 + Type 2 SPDs are designed to manage both high-energy lightning currents and transient overvoltages within a coordinated protection device. The ABB OVR T1-T2 4L 12.5-275s P QS handles lightning impulse currents using the 10/350 µs waveform associated with Type 1 testing while also providing Type 2 protection against surge currents characterised by an 8/20 µs waveform.
Its four-pole architecture is designed for TN-S electrical systems, while ABB's QuickSafe technology provides visual end-of-life indication and Safety Reserve functionality. The pluggable design allows individual protection modules to be replaced while retaining the installed DIN-rail base and wiring, helping reduce maintenance time and simplify ongoing surge-protection servicing.
Typical Applications
- Main electrical distribution switchboards.
- Three-phase TN-S low-voltage distribution systems.
- Buildings equipped with external lightning protection systems.
- Commercial and industrial electrical installations.
- Manufacturing and process-control facilities.
- Industrial automation and machinery installations.
- Commercial buildings and infrastructure systems.
- Protection of sensitive electrical and electronic equipment.
- Installations requiring combined lightning-current and transient-overvoltage protection.
Technical Specifications
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| Remote Signal | No | |
|---|---|---|
| SPD Type | Type 1+2 | |
| Poles | 4-pole | |
| Earthing System | TN-S | |
| Device Type | Surge protection device | |
| Impulse Current Iimp (kA) | 12.5 kA | |
| Series | OVR QuickSafe | |
| ABB order code | 2CTB815710R2300 | |
| GTIN / EAN | 3660308525017 | |
| Product group | Surge Protection Devices | |
| Product type | Combined Type 1 + Type 2 surge protective device | |
| SPD classification | Type 1 + Type 2 / Class I + II | |
| Number of poles | 4 | |
| Low-voltage distribution system | TN-S | |
| Nominal system voltage | 230 / 400 V AC | |
| Maximum continuous operating voltage (Uc) | 275 V AC | |
| Impulse current (Iimp, 10/350 µs) | 12.5 kA per pole | |
| Maximum discharge current (Imax, 8/20 µs) | 80 kA | |
| Nominal discharge current (In, 8/20 µs) | 30 kA | |
| Voltage protection level (Up) | 1.3 kV | |
| Safety Reserve | Yes | |
| End-of-life indicator | Yes | |
| Replaceable module | Yes | |
| Remote signalling | No | |
| Mounting | 35 mm DIN rail | |
| DIN size | 4 modules | |
| Protection rating | IP20 | |
| Operating temperature | -40 to +80 °C | |
| Maximum solid copper conductor | 50 mm² | |
| Maximum flexible copper conductor | 35 mm² | |
| Tightening torque | 3.5 Nm | |
| Weight | approx. 0.6 kg | |
| Standard | EN / IEC 61643-11 |
Frequently Asked Questions
What is the ABB OVR T1-T2 4L 12.5-275s P QS used for?
It is a combined Type 1 + Type 2 surge protective device designed to protect three-phase TN-S low-voltage electrical installations against lightning currents and transient overvoltages.
What is the impulse current rating of the ABB 2CTB815710R2300?
The device has an impulse current rating of 12.5 kA per pole using a 10/350 µs waveform, making it suitable for Type 1 lightning-current protection.
What is the discharge current rating of the OVR T1-T2 4L 12.5-275s P QS?
The device provides a 30 kA nominal discharge current and an 80 kA maximum discharge current using an 8/20 µs waveform.
Does the ABB OVR T1-T2 4L 12.5-275s P QS have remote signalling?
No. This P QS version does not include remote signalling; ABB offers TS variants within the OVR range where auxiliary remote status signalling is required.
Where is the ABB OVR T1-T2 4L 12.5-275s P QS typically installed?
It is typically installed on a 35 mm DIN rail in the main distribution board of a TN-S electrical installation, particularly where combined lightning-current and transient-overvoltage protection is required.
Trusted Lightning and Surge Protection from ABB
ABB OVR Type 1 + Type 2 surge protective devices combine lightning-current handling, transient surge protection, QuickSafe technology, Safety Reserve functionality and practical pluggable maintenance for dependable protection of modern low-voltage electrical installations.
