Why Choose the ABB OVR T2 4L 40-440 P TS QS Surge Protective Device?
The ABB OVR T2 4L 40-440 P TS QS is a four-pole Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations and sensitive equipment against transient overvoltages caused by indirect lightning effects and switching events. Part of the ABB OVR QuickSafe surge protection range, it is designed for three-phase systems requiring protection across four conductors and combines high surge-current capability with pluggable DIN-rail construction.
The OVR T2 4L 40-440 P TS QS provides a maximum discharge current (Imax) of 40 kA and a nominal discharge current (In) of 20 kA using the standard 8/20 µs surge-current waveform. It has a 440 V AC maximum continuous operating voltage (Uc) and a 1.8 kV voltage protection level (Up), providing effective transient overvoltage protection for compatible three-phase power-distribution systems.
Its pluggable QuickSafe construction allows individual protection cartridges to be replaced without changing the complete SPD base. The TS remote signalling function enables external monitoring of device status, while integrated thermal disconnectors and end-of-life indication support straightforward inspection and maintenance. The four-pole configuration is particularly suitable for TNS and compatible IT network applications.
Key Advantages
- Type 2 surge protection for compatible three-phase low-voltage systems.
- Four protected lines provide comprehensive multi-conductor surge protection.
- 40 kA maximum discharge current (Imax) for robust transient surge handling.
- 20 kA nominal discharge current (In) using an 8/20 µs waveform.
- 440 V AC maximum continuous operating voltage.
- 1.8 kV voltage protection level (Up) helps limit transient voltage reaching downstream equipment.
- QuickSafe technology supports dependable thermal disconnection at end of life.
- Pluggable protection cartridges simplify servicing and replacement.
- Remote signalling enables external monitoring of SPD condition.
- DIN-rail construction provides straightforward integration into distribution equipment.
Key Features
- ABB OVR Type 2 QuickSafe surge protective device.
- Four protected lines.
- Suitable for TNS and compatible IT network applications.
- 40 kA Imax maximum discharge current.
- 20 kA In nominal discharge current.
- 440 V AC Uc maximum continuous operating voltage.
- 1.8 kV voltage protection level (Up).
- 2 kA impulse current (Iimp) using a 10/350 µs waveform.
- Integrated thermal disconnectors.
- End-of-life status indication.
- Replaceable pluggable protection cartridges.
- TS remote signalling for external condition monitoring.
- Backup protection capability up to 125 A.
- DIN-rail mounting for distribution boards and switchgear.
Reliable QuickSafe Surge Protection for Three-Phase Systems
Type 2 surge protective devices are designed to divert surge currents generated by indirect lightning effects and switching operations while limiting the transient overvoltage reaching downstream electrical and electronic equipment. Their ability to discharge currents characterised by an 8/20 µs waveform makes them an important part of coordinated surge protection in low-voltage distribution systems.
The ABB OVR T2 4L 40-440 P TS QS combines 40 kA maximum discharge capability, 20 kA nominal discharge current and a 1.8 kV protection level with four-line QuickSafe construction. Pluggable cartridges, integrated status indication and remote signalling make it particularly practical for industrial and commercial installations where surge protection must be monitored and maintained efficiently.
Typical Applications
- Three-phase low-voltage electrical distribution systems.
- TNS and compatible IT network installations.
- Main and sub-distribution boards.
- Industrial switchboards and control panels.
- Machinery and automation systems.
- Commercial building electrical installations.
- Manufacturing and process-control facilities.
- Protection of sensitive electrical and electronic equipment.
- Installations requiring remote SPD status monitoring.
