Why Choose the ABB OVR T2 40-440s C QS Surge Protection Cartridge?
The ABB OVR T2 40-440s C QS, order code 2CTB815704R5500, is a replaceable Type 2 / Class II surge protection cartridge from the ABB OVR QuickSafe range. Designed for compatible ABB OVR pluggable surge protection assemblies, this single-pole cartridge provides protection against transient overvoltages associated with indirect lightning and electrical switching events.
The OVR T2 40-440s C QS provides a 20 kA nominal discharge current (In) and a 40 kA maximum discharge current (Imax) with an 8/20 µs waveform, together with a 2 kA impulse current (Iimp) using a 10/350 µs waveform. ABB specifies a 400 V AC system voltage, 440 V AC maximum continuous operating voltage (Uc) and a 1.5 kV voltage protection level (Up).
The cartridge incorporates ABB's Safety Reserve and preventive-maintenance functionality, along with visual status indication for straightforward condition checking. Its replaceable cartridge format allows a compatible OVR SPD to be serviced without replacing the complete surge protection assembly, supporting efficient maintenance in TT, TN-C, TN-S and compatible IT low-voltage networks.
Key Advantages
- Replaceable Type 2 / Class II surge protection cartridge for compatible ABB OVR QuickSafe assemblies.
- 40 kA maximum discharge current (Imax) with an 8/20 µs waveform.
- 20 kA nominal discharge current (In) with an 8/20 µs waveform.
- 2 kA impulse current (Iimp) with a 10/350 µs waveform.
- 440 V AC maximum continuous operating voltage (Uc).
- 1.5 kV voltage protection level (Up) helps limit transient voltage reaching downstream equipment.
- Safety Reserve technology provides an additional protection stage to support planned maintenance.
- Preventive-maintenance functionality and visual status indication simplify condition monitoring.
- Compact cartridge construction enables efficient replacement without rewiring the complete SPD assembly.
Key Features
- ABB OVR QuickSafe surge protection range.
- Type 2 / Class II replacement surge protection cartridge.
- Single-pole protection element.
- Compatible with specified TT, TN-C, TN-S and IT applications.
- 400 V AC system voltage.
- 440 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).
- 1.5 kV voltage protection level.
- Safety Reserve functionality.
- Preventive-maintenance function.
- Integrated status indication.
- 100 kA rated service short-circuit breaking capacity.
- 100 kA short-circuit withstand.
- IP20 protection rating.
- Compliant with IEC 61643-11 / EN 61643-11.
Type 2 Replacement Protection with Safety Reserve Technology
Type 2 surge protection devices are designed to limit transient overvoltages associated with indirect lightning and electrical switching events. They are commonly installed in distribution equipment to divert surge current away from sensitive downstream electrical and electronic equipment. A replaceable cartridge allows the active protection element to be renewed while retaining the compatible installed SPD base.
The ABB OVR T2 40-440s C QS combines a 40 kA maximum 8/20 µs discharge current with Safety Reserve and preventive-maintenance functionality. The cartridge is used as the phase replacement element in compatible ABB OVR assemblies, including the OVR T2 40-440s P QS family, allowing surge protection to be restored quickly without disturbing the permanent wiring to the SPD base.
Typical Applications
- Replacement cartridge for compatible ABB OVR T2 QuickSafe surge protection devices.
- 400/690 V AC low-voltage electrical systems where specified by the SPD configuration.
- Compatible TT electrical distribution systems.
- Compatible TN-C electrical distribution systems.
- Compatible TN-S electrical distribution systems.
- Compatible IT electrical distribution systems.
- Main and subdistribution boards.
- Commercial and industrial electrical installations.
- Maintenance of existing ABB OVR Type 2 surge protection assemblies.
- Protection against indirect lightning and switching-induced transient overvoltages.
