OT1600E03N3P ABB 1600 A 3P+N Isolator Switch

Why Choose the ABB OT1600E03N3P 3P+N Isolator Switch?

The ABB OT1600E03N3P is a heavy-duty 1600 A 3P+N isolator switch / switch disconnector designed for reliable switching and electrical isolation in high-current industrial power distribution systems. As part of the ABB OT switch-disconnector series, it provides robust manual isolation for switchboards, distribution panels and demanding low-voltage installations.

This front-operated, base-mounted switch incorporates three switched poles plus a detachable neutral link integrated into the mechanism. The main poles have an open-air thermal current rating of 1600 A, while the integrated neutral pole is rated at 1250 A, providing a practical solution for three-phase distribution systems incorporating a neutral conductor.

The OT1600E03N3P is rated at 1600 A AC-22A and 1250 A AC-23A at 400–415 V. It is supplied with an OXP12X280 operating shaft, OHB274J12 black ON-OFF plastic pistol handle and M12 × 60 terminal bolt kit, providing the principal operating accessories required for switchboard installation.

Key Advantages

• Heavy-duty 1600 A isolator switch / switch disconnector for high-current applications.
• 3P+N configuration for three-phase systems incorporating a neutral conductor.
• Detachable neutral link integrated into the switching mechanism.
• 1250 A thermal current rating for the neutral pole.
• 1600 A AC-22A and 1250 A AC-23A at 400–415 V.
• Front-operated, base-mounted design for industrial switchboards.
• IP65 operating handle is padlockable in the OFF position.
• Shaft, pistol handle and terminal bolt kit supplied as standard.

Key Features

• ABB OT series isolator switch / switch disconnector.
• 1600 A open-air thermal current.
• 3P+N pole configuration.
• 1250 A neutral-pole thermal current.
• 1600 A AC-22A operational current at 400–415 V.
• 1250 A AC-23A operational current at 400–415 V.
• 50 kA short-time withstand current for 1 s.
• 1000 V AC rated operational voltage.
• Black IP65 pistol handle with OFF-position padlocking.
• Adjustable operating shaft for different installation depths.

Reliable High-Current Switching and Isolation

Switch disconnectors provide manual switching together with dependable electrical isolation, allowing circuits and equipment to be disconnected from their power source during maintenance, servicing and operational procedures. In high-current installations, robust switching performance and secure mechanical isolation are important for dependable electrical distribution.

The ABB OT1600E03N3P combines a 1600 A main-pole rating with an integrated detachable neutral link and substantial short-circuit withstand capability. Its front-operated configuration, IP65 handle and adjustable shaft make it well suited to industrial switchboards requiring high-current 3P+N switching and secure manual isolation.

Typical Applications

• Industrial low-voltage switchboards.
• High-current electrical distribution systems.
• Main and local electrical isolation.
• Three-phase distribution systems incorporating a neutral conductor.
• Manufacturing and process plant switchgear.
• Commercial and industrial power distribution panels.
• Industrial control and electrical infrastructure assemblies.