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ABB OVR T1-T2 3N 12.5-440s P TS QS 2CTB815710R3600 is a four-pole 3+1 pluggable Type 1 + Type 2 surge protective device for TT and TN-S systems with 12.5 kA impulse current per pole, 80 kA maximum discharge current, 440 V AC maximum continuous operating voltage and remote signalling.
£774.69
The ABB OVR T1-T2 3N 12.5-440s P TS 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 2CTB815710R3600, it forms part of the ABB OVR QuickSafe range and is compatible with ABB System pro M compact distribution equipment.
Designed in a 3+1 configuration for TN-S and TT systems, this four-pole SPD provides an impulse current rating of 12.5 kA per pole using a 10/350 µs waveform and an 80 kA maximum discharge current. Its 440 V AC maximum continuous operating voltage makes it suitable for higher-voltage three-phase networks with a nominal system voltage of 400/690 V AC.
ABB QuickSafe technology incorporates a reserve varistor that helps maintain basic surge protection when the primary protection element reaches the end of its service life. The pluggable design simplifies cartridge replacement, while the TS auxiliary contact provides potential-free remote status signalling for integration with building-management and industrial monitoring systems.
Combined Type 1 + Type 2 SPDs are designed to manage both direct or partial lightning currents and transient overvoltages within a coordinated protection device. The ABB OVR T1-T2 3N 12.5-440s P TS QS provides Type 1 protection against lightning-current impulses characterised by a 10/350 µs waveform, while its Type 2 capability protects against transient surge currents associated with switching events and indirect lightning effects.
The device's 3+1 architecture is designed for TN-S and TT networks, while the reserve-varistor design provides additional protection availability by retaining basic surge protection after the primary protection stage reaches end of life. Pluggable cartridges simplify servicing, and the TS potential-free auxiliary contact enables remote monitoring of SPD condition.
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| Impulse Current Iimp (kA) | 12.5 kA | |
|---|---|---|
| Series | OVR QuickSafe / System pro M compact | |
| ABB order code | 2CTB815710R3600 | |
| EAN | 3660308525093 | |
| 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 | |
| Protected lines | 3+1 | |
| Low-voltage distribution systems | TT / TN-S | |
| Nominal system voltage | 400 / 690 V AC | |
| Maximum continuous operating voltage (Uc) | 440 V AC | |
| Impulse current (Iimp, 10/350 µs) | 12.5 kA per pole | |
| Maximum discharge current (Imax, 8/20 µs) | 80 kA | |
| Voltage protection level (Up) | 1.8 kV | |
| Short-circuit withstand | 100 kA | |
| Reserve varistor | Yes | |
| Safety Reserve | Yes | |
| Status indication | Mechanical | |
| Remote signalling | Yes | |
| Auxiliary contact | Potential-free changeover contact | |
| Construction | Pluggable | |
| Mounting | 35 mm DIN rail | |
| Protection rating | IP20 | |
| Operating temperature | -40 to +80 °C | |
| Product weight | approx. 1.05 kg | |
| Standards | IEC 61643-11 / EN 61643-11 |
It is a combined Type 1 + Type 2 surge protective device designed to protect three-phase TN-S and TT low-voltage electrical systems against lightning currents and transient overvoltages.
The device has an impulse current rating of 12.5 kA per pole using a 10/350 µs waveform, providing Type 1 lightning-current protection.
It is designed for nominal systems up to 400/690 V AC and has a maximum continuous operating voltage of 440 V AC.
Yes. The TS version incorporates a potential-free auxiliary changeover contact for remote monitoring of the surge protective device's operating condition.
The “s” identifies ABB's reserve-varistor design, which provides additional protection by maintaining a basic level of surge protection when the primary protection element reaches the end of its service life and until the SPD is replaced.
ABB OVR Type 1 + Type 2 surge protective devices combine lightning-current handling, transient surge protection, QuickSafe reserve-varistor technology, pluggable maintenance and remote status signalling for dependable protection of modern electrical distribution systems.
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