2CTB802345R3300 ABB OVR T2 3L 40-550 P TS U Type 2 Surge Protective Device

Why Choose the ABB OVR T2 3L 40-550 P TS U Surge Protective Device?

The ABB OVR T2 3L 40-550 P TS U is a robust Type 2 surge protective device (SPD) designed to protect three-phase delta electrical installations and connected equipment against transient overvoltages caused by indirect lightning effects and switching events. Part of the ABB OVR surge protection range, this three-pole pluggable SPD is engineered for dependable protection in industrial and commercial power-distribution systems.

The OVR T2 3L 40-550 P TS U provides a maximum discharge current (Imax) of 40 kA and a nominal discharge current (In) of 10 kA using the standard 8/20 µs surge-current waveform. It is intended for 480 V AC three-phase delta systems and has a 550 V AC maximum continuous operating voltage (MCOV), providing effective surge protection for higher-voltage low-voltage distribution applications.

Its pluggable construction simplifies maintenance by allowing protection cartridges to be replaced without changing the complete device base. The TS remote signalling contact enables external monitoring of SPD condition, while visual status indication provides convenient local inspection. The three-pole configuration and DIN-rail mounting make the device straightforward to integrate into distribution boards, switchboards and industrial control panels.

Key Advantages

• Type 2 surge protection for three-phase delta electrical systems.
• Three protected poles provide coordinated protection across the three phases.
• 40 kA maximum discharge current (Imax) for robust transient surge handling.
• 10 kA nominal discharge current (In) using an 8/20 µs waveform.
• Suitable for 480 V AC three-phase delta systems.
• 550 V AC maximum continuous operating voltage.
• 1.7 kV voltage protection rating helps limit transient voltage reaching downstream equipment.
• Pluggable cartridges simplify servicing and replacement.
• Remote signalling contact supports external SPD status monitoring.

Key Features

• ABB OVR Type 2 surge protective device.
• Three-phase delta network configuration.
• 3 protected poles.
• 40 kA Imax maximum discharge current.
• 10 kA In nominal discharge current.
• 480 V AC nominal three-phase delta system voltage.
• 550 V AC MCOV maximum continuous operating voltage.
• 1.7 kV voltage protection rating (VPR).
• Pluggable protection cartridges for straightforward maintenance.
• Visual status indication for local inspection.
• Remote signalling contact for external condition monitoring.
• Compact DIN-rail mounting for electrical distribution equipment.

Reliable Surge Protection for Three-Phase Delta Networks

Type 2 surge protective devices are installed in low-voltage distribution systems to divert transient surge currents and limit the overvoltage reaching connected electrical and electronic equipment. This helps reduce the risk of insulation damage, premature component failure and disruption caused by switching transients and indirect lightning effects.

With its 40 kA maximum discharge capability, 10 kA nominal discharge current and three-pole configuration, the ABB OVR T2 3L 40-550 P TS U provides effective protection for compatible 480 V AC three-phase delta installations. Its pluggable cartridges, visual indication and remote signalling capability also support efficient maintenance and condition monitoring in industrial electrical systems.

Typical Applications

• 480 V AC three-phase delta distribution systems.
• Industrial distribution boards and switchboards.
• Machinery and automation control panels.
• Commercial and industrial electrical installations.
• Protection of sensitive electronic and control equipment.
• Manufacturing and process-control power systems.
• Electrical installations requiring three-pole Type 2 surge protection.