A185-30-11-84 ABB 1SFL491001R8411 110-120V 60Hz Contactor 3-phase 185A 3NO

1.Overview of the A185-30-11-84 ABB 1SFL491001R8411

The ABB model A185-30-11-84 (order number 1SFL491001R8411) is an A-series three-pole AC contactor designed for frequent switching of three-phase motors and power distribution circuits up to 690 V. It can also be used for capacitor compensation, lighting control, and other applications. The product adopts an electromagnetic direct-acting structure with three normally open main contacts and one normally open and one normally open auxiliary contact. The rated operating current is AC-3 185 A, and the AC-3 power is 90 kW (400 V) / 125 hp (480 V). The coil voltage is 110 V 50 Hz or 110-120 V 60 Hz. It can be directly mounted on a DIN rail or base plate. Wiring supports terminals/copper busbars. The mechanical life is 10 million cycles, and the electrical life is 3600 cycles/h. The ambient temperature is -25…+55 °C. It complies with GB14048.4, IEC60947-4-1, and other standards, making it a reliable choice for full-voltage starting (DOL) and remote control of industrial motors.

2.Core Features:

Product Model: A185-30-11-84 (or 1SFL491001R8411)
Rated Current: 185A (for AC-3 operating category, rated operating voltage 380V)
Number of Poles: 3
Main Contact Configuration: 3 normally open (3 NO)
Rated Insulation Voltage: 690V - 1000V
Coil Voltage: AC 110V, 50/60Hz (Specific model suffix determines voltage; other voltage specifications are also available)
Applicable Motor Power: Approximately 90kW (for AC-3 operating category, 380V)

Reliable Motor Control and Protection: Primarily used for remote circuit connection and disconnection, suitable for controlling the starting, stopping, and reversing of AC motors. It can be combined with thermal overload relays or electronic protection devices to form an electromagnetic starter, providing effective overload protection for motors and other loads.

Industrial-Grade Structure and Safety Design:

Utilizing a direct-acting, double-break structure, it features small size, light weight, and low power consumption.

The contacts are made of a silver-based alloy material resistant to welding and electrical abrasion, offering excellent conductivity and long lifespan.

The arc-extinguishing chamber design provides excellent arc extinguishing, with a short or even zero arc distance, enhancing safety.

The cover and housing are made of arc-resistant plastic, while the base uses glass fiber reinforced plastic, offering high strength and excellent dielectric properties.

Easy Installation and Use:

Two wiring methods are available for users: one with both terminals on the same end of the product, and the other with each terminal on a separate end, providing flexible and convenient wiring.

Installation can be done with screws or a DIN rail, allowing for quick and easy assembly and disassembly.

Contactors can be assembled with modular auxiliary contact groups, air delay heads, mechanical interlocking mechanisms and other accessories to form a variety of derivative products such as reversible contactors and star-delta starters.

3.Product details pictures

4. Related products

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