1SBN083501R1000 ABB BEM75-30 Contactor Connection Kit

Why Choose the ABB 1SBN083501R1000 BEM75-30 Connection Set?

The ABB 1SBN083501R1000, model BEM75-30, is a purpose-designed connection set for reversing contactor assemblies. It is used to connect the main poles of two compatible three-pole contactors mounted side by side, providing a compact and coordinated solution for constructing forward/reverse motor control circuits in industrial machinery and automation panels.

The BEM75-30 is designed for compatible ABB A50 to A75, AE50 to AE75 and AF50 to AF75 three-pole contactors. The set comprises three upstream and three downstream connections, allowing the main power poles of the two contactors to be interconnected in the arrangement required for reversing operation while retaining compatibility with suitable mechanical and electrical interlocking.

Manufactured from insulated solid copper bars, the BEM75-30 provides a robust alternative to fabricating individual reversing links. Its manufacturer-designed construction helps simplify panel assembly, maintain consistent conductor positioning and create a neat reversing contactor arrangement for motor control centres, industrial switchgear and OEM machinery.

Key Advantages

• Purpose-designed connection set for ABB reversing contactor assemblies.
• Compatible with A50 to A75, AE50 to AE75 and AF50 to AF75 contactors.
• Connects the main poles of two side-by-side three-pole contactors.
• Includes three upstream and three downstream connections.
• Constructed from durable insulated solid copper bars.
• Helps reduce individual wiring and fabricated links within reversing starters.
• Supports compact contactor assemblies incorporating suitable mechanical and electrical interlocking.
• ABB-engineered accessory helps ensure correct fit and consistent panel assembly.

Key Features

• ABB BEM reversing connection set series.
• BEM75-30 connection set configuration.
• Designed for reversing contactor applications.
• Suitable for three-pole contactors mounted side by side.
• Compatible with ABB A50 to A75 contactors.
• Compatible with ABB AE50 to AE75 contactors.
• Compatible with ABB AF50 to AF75 contactors.
• Includes three upstream connections.
• Includes three downstream connections.
• Insulated solid copper bar construction.
• Designed to simplify forward/reverse motor starter assembly.
• Suitable for use with compatible ABB interlocking arrangements.

Simplified Connections for Reversing Motor Starters

Reversing motor starters use two contactors to change the phase sequence supplied to a three-phase motor, allowing the motor to operate in forward or reverse rotation. The contactors must be correctly interconnected and interlocked so that opposing switching states cannot be energised simultaneously.

The ABB BEM75-30 simplifies the main-circuit portion of this arrangement by providing prefabricated upstream and downstream connections for compatible ABB contactors. Its insulated solid copper construction reduces the need for individually fabricated links and helps panel builders create compact, consistent and serviceable reversing starter assemblies.

Typical Applications

• Forward and reverse three-phase motor starters.
• Industrial motor control centres.
• Conveyor systems requiring bidirectional operation.
• Hoists and material handling machinery.
• Production and processing equipment.
• Electrical control panels and switchgear.
• OEM machinery and automation systems.
• Replacement and maintenance of compatible ABB reversing contactor assemblies.