1SBL337201R7000 ABB AF45-40-00 100-250V AC/DC 4-Pole Contactor

Why Choose the ABB AF45-40-00 100-250V AC/DC Contactor?

The ABB AF45-40-00, order code 1SBL337201R7000, is a robust four-pole AC/DC-operated contactor designed for reliable switching of non-inductive and slightly inductive loads in industrial power and control systems. As part of the ABB AF contactor range, it combines an electronically controlled coil with a wide control-voltage range for dependable operation in demanding applications.

The AF45-40-00 features four normally open main poles and is primarily intended for AC-1 applications such as resistance heating, distribution circuits and other loads where four-pole switching is required. Its electronic coil interface accepts both AC and DC control supplies, helps manage control-voltage variations and incorporates surge suppression.

This exact 1SBL337201R7000 version has a 100–250 V AC, 50/60 Hz and 100–250 V DC control-voltage range. The contactor provides a rated operational current of 70 A at AC-1 under the specified IEC conditions, making it suitable for substantial industrial load-switching duties.

Key Advantages

• Industrial four-pole contactor with 4 NO main contacts.
• Wide-range 100–250 V AC/DC electronic coil.
• AC control operation at 50/60 Hz.
• 70 A AC-1 rated operational current at an ambient temperature of 40 °C.
• Electronic coil interface helps accommodate significant control-voltage variations.
• Integrated surge suppression simplifies control-circuit design.
• Reduced coil energy consumption compared with conventional contactor coil designs.

Key Features

• ABB AF45-40-00 contactor.
• 4 NO main poles.
• 100–250 V AC at 50/60 Hz control circuit.
• 100–250 V DC control circuit.
• 70 A AC-1 operational current at 40 °C.
• 65 A UL/CSA general-use rating at 600 V AC.
• No factory-fitted auxiliary contacts.
• Front- and side-mounted auxiliary contact blocks can be added where required.
• Electronic coil interface with built-in surge suppression.
• Block-type construction for industrial panel installation.

Reliable Four-Pole Industrial Load Switching

Four-pole contactors such as the ABB AF45-40-00 provide simultaneous switching of four conductors and are particularly suited to non-inductive or slightly inductive loads. Typical duties include resistance heating equipment and industrial power circuits requiring dependable multi-pole switching.

ABB's AF electronic coil technology allows this version to operate from either 100–250 V AC at 50/60 Hz or 100–250 V DC. The wide operating range, integrated surge suppression and efficient coil design help simplify control-panel engineering while supporting reliable contactor operation under varying control-supply conditions.

Typical Applications

• Resistance furnaces and industrial heating equipment.
• Non-inductive and slightly inductive load switching.
• Industrial power distribution circuits.
• Four-pole electrical switching applications.
• Machine and process control panels.
• Industrial automation and electrical control systems.