Why Choose the ABB OVR T1-T2 1N 12.5-440s P QS Surge Protective Device?
The ABB OVR T1-T2 1N 12.5-440s P QS, order code 2CTB815710R4200, is a combined Type 1 and Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations against lightning currents and transient overvoltages. Part of the ABB OVR QuickSafe range, it combines high-energy lightning-current protection with Type 2 transient surge protection in a compact, pluggable assembly.
The 1N configuration provides coordinated protection for a phase conductor and neutral path, making the device suitable for appropriate single-phase plus neutral electrical systems. Its pluggable design allows protection modules to be serviced or replaced when required, while integrated visual status indication provides a straightforward means of checking the SPD's operating condition.
With a maximum continuous operating voltage (Uc) of 440 V AC and an impulse current (Iimp) of 12.5 kA for the 10/350 µs lightning-current waveform, the OVR T1-T2 1N 12.5-440s P QS is engineered for demanding lightning and transient-overvoltage protection. ABB QuickSafe technology further supports dependable operation and practical maintenance within modern electrical distribution systems.
Key Advantages
- Combined Type 1 and Type 2 surge protection in a single coordinated device.
- 12.5 kA impulse current (Iimp) capability for 10/350 µs lightning-current impulses.
- 440 V AC maximum continuous operating voltage (Uc).
- 1N configuration for phase-plus-neutral electrical systems.
- Provides protection against direct lightning-current effects and transient switching overvoltages.
- Pluggable construction simplifies servicing and replacement.
- Integrated visual status indication supports routine maintenance checks.
- ABB QuickSafe technology supports reliable end-of-life management.
- DIN-rail design enables straightforward integration into distribution boards.
Key Features
- ABB OVR T1-T2 QuickSafe surge protective device series.
- Combined Type 1 + Type 2 SPD.
- 1N / phase-plus-neutral configuration.
- Maximum continuous operating voltage (Uc): 440 V AC.
- Impulse current (Iimp, 10/350 µs): 12.5 kA.
- Designed for appropriate low-voltage AC electrical distribution systems.
- Pluggable protection modules for convenient maintenance.
- Integrated operating-status indication.
- QuickSafe design for dependable protection and end-of-life management.
- DIN-rail mounting for electrical distribution-board installation.
- Suitable for coordinated lightning-current and transient-overvoltage protection.
Reliable Combined Lightning and Surge Protection
Type 1 surge protective devices are designed to discharge high-energy lightning currents that can enter an electrical installation, while Type 2 devices limit transient overvoltages associated with indirect lightning effects and electrical switching. By combining these functions, the ABB OVR T1-T2 1N 12.5-440s P QS provides coordinated protection from a single compact device.
The ABB OVR QuickSafe platform is also designed with maintenance in mind. Pluggable protection elements simplify replacement when required, while integrated condition indication allows the SPD to be checked during routine inspection, helping maintain effective surge protection throughout the installation's service life.
Typical Applications
- Single-phase plus neutral low-voltage electrical systems.
- Main distribution boards requiring combined Type 1 and Type 2 protection.
- Industrial control and electrical distribution panels.
- Commercial and industrial buildings.
- Buildings equipped with external lightning protection systems.
- Manufacturing and production facilities.
- Installations exposed to lightning-induced and switching transient overvoltages.
