1SCA022750R1940 ABB 1600 A 3-Pole IP65 Steel Enclosed Switch-Disconnector

Why Choose the ABB OT1600KLUU3BZ Enclosed Switch-Disconnector?

The ABB OT1600KLUU3BZ is a heavy-duty 1600 A enclosed 3-pole switch-disconnector designed for high-current load switching and electrical isolation in demanding low-voltage installations. Identified by ABB order number 1SCA022750R1940, it belongs to ABB's metal-enclosed load-break product group and combines ABB OT switching technology with a robust galvanised steel enclosure.

Designed for industrial power-distribution applications, the OT1600KLUU3BZ features an IP65 steel-sheet enclosure with polyester coating and a black pistol-type I-O / ON-OFF operating handle. The handle is padlockable, while the enclosure incorporates an interlocked cover with a defeatable interlock to support controlled inspection and maintenance procedures.

The OT1600KLUU3BZ has blank cable entries at the top and bottom and is prepared for substantial single or parallel power-cable arrangements. Its 1600 A AC-22A rating, 1250 A AC-23A rating at 380–415 V AC and 710 kW AC-23A motor rating at 380–415 V AC provide substantial switching capability for main distribution and high-current industrial loads.

Key Advantages

• Heavy-duty 1600 A enclosed switch-disconnector for high-current applications.
• 3-pole configuration designed for three-phase electrical systems.
• Robust IP65 galvanised steel enclosure with polyester coating.
• 1600 A AC-22A rating at 380–415 V AC.
• 1250 A AC-23A rating at 380–415 V AC.
• Rated for AC-23A motor loads up to 710 kW at 380–415 V AC.
• Blank top and bottom cable entries provide installation flexibility.
• Padlockable black pistol handle and interlocked enclosure cover support secure isolation.

Key Features

• ABB OT1600KLUU3BZ metal-enclosed switch-disconnector.
• 1600 A rated enclosed thermal current.
• 3-pole switch-disconnector configuration.
• IP65 protection rating.
• Galvanised steel-sheet enclosure with polyester coating.
• Black pistol-type I-O / ON-OFF operating handle.
• Handle padlockable for up to three padlocks.
• Interlocked cover with defeatable interlock.
• Blank cable entries at the top and bottom.
• Prepared for single and parallel cable arrangements.
• Detachable neutral provision.
• Protective earth connection provision.
• No auxiliary contacts fitted as standard; supports up to 2 NO + 1 NC.

Reliable High-Current Load Switching and Isolation

The ABB OT1600KLUU3BZ provides a dedicated manual switching and isolation point for substantial three-phase electrical systems. Its 1600 A enclosed thermal and AC-22A capability, together with an AC-23A rating of 1250 A at 380–415 V AC, makes it suitable for main distribution circuits, large industrial feeders and demanding machinery installations.

The IP65 galvanised steel enclosure provides robust environmental protection, while blank top and bottom cable entries allow the enclosure to be prepared for the required cable arrangement. A padlockable black pistol handle, interlocked cover and defeatable interlock provide practical features for local operation, servicing and maintenance isolation.

Typical Applications

• Main low-voltage electrical distribution systems.
• High-current three-phase feeder isolation.
• Industrial switchboards and power-distribution installations.
• Manufacturing and process plants.
• Large machinery and production equipment.
• High-power motor and inductive-load applications.
• Maintenance isolation points for high-current electrical equipment.