1SCA022401R0840 ABB 4-Pole 37 kW IP65 Plastic Enclosed Switch-Disconnector

Why Choose the ABB OTP75T4U Plastic Enclosed Switch?

The ABB OTP75T4U is a four-pole plastic enclosed switch-disconnector designed for local isolation and safety switching of electrical loads and motors. Part of the ABB OTP Plastic Enclosed Switches range, it combines an enclosed OT switching mechanism with a durable plastic enclosure for industrial and commercial installations.

Designed for motor loads up to 37 kW at 400 V AC, the OTP75T4U has an 80 A AC-23 rating at 400 V and a 100 A AC-21 rating at 400 V. The enclosure provides IP65 protection, helping protect the switching equipment against dust and water jets in demanding installation environments.

The OTP75T4U features a four-pole configuration, black selector handle and blank cable-entry arrangement, allowing the enclosure to be prepared for the required cable-entry solution during installation. A 1NO auxiliary contact, PE terminals and an N-terminal are included, providing a practical complete enclosed switching solution.

Key Advantages

• 37 kW motor switching capacity at 400 V AC for industrial isolation duties.
• Four-pole switching for simultaneous isolation of four conductors.
• IP65 plastic enclosure for protection against dust and water jets.
• Blank cable entries provide flexibility when preparing cable access.
• 80 A AC-23 rating at 400 V for motor and inductive load applications.
• 100 A AC-21 rating at 400 V for resistive and mixed-load switching.
• Supplied with a 1NO auxiliary contact for signalling or control functions.
• Black selector handle provides clear local I-O / ON-OFF operation.

Key Features

• ABB OTP Plastic Enclosed Switches range.
• 4-pole enclosed switch-disconnector.
• 37 kW AC-23 motor rating at 400 V.
• 80 A AC-23 rated current at 400 V.
• 100 A AC-21 rated current at 400 V.
• 115 A rated uninterrupted current.
• 750 V AC maximum rated operational voltage.
• IP65 degree of protection.
• Rigid plastic enclosure suitable for industrial isolation applications.
• Blank cable-entry arrangement at the top and bottom.
• 1NO auxiliary contact included, with provision for up to 2NO + 2NC auxiliary contacts.
• N-terminal and PE terminals included.
• Black selector operating handle with ON-OFF indication.

IP65 Enclosed Switching for Motor and Load Isolation

The ABB OTP75T4U combines the switching mechanism and operating handle within a complete IP65 plastic enclosure, making it suitable for local isolation close to machinery, motors and other electrical equipment. Its 37 kW rating at 400 V and four-pole arrangement make it particularly suitable where all four conductors need to be isolated together.

The blank-entry enclosure allows cable openings to be prepared according to the requirements of the installation rather than restricting the installer to predetermined gland sizes. The included 1NO auxiliary contact can be incorporated into compatible control or status circuits, while the included N-terminal and PE terminals support practical installation within the enclosure.

Typical Applications

• Local isolation of industrial motors up to 37 kW at 400 V.
• Machinery maintenance and service isolation.
• Industrial production and process equipment.
• Pumps, fans and ventilation equipment.
• Commercial and industrial electrical distribution systems.
• IP65 enclosed switching installations requiring blank cable entries.