Why Choose the ABB MC2A310ARJ Mini Contactor?
The ABB 1SAL103414R9902, type MC2A310ARJ, is a compact three-pole mini contactor designed for controlling single-phase and three-phase loads in residential, commercial and industrial electrical applications. Its dimension-optimised construction provides reliable switching performance where high performance is required but available panel space is limited.
The MC2A310ARJ features three normally open main contacts and one normally open auxiliary contact (3NO + 1NO). Its 110–115 V AC control circuit at 50 Hz and 110–120 V AC at 60 Hz together with special screw terminals for ring-tongue ferrules provide a secure connection solution for automation systems, machinery and electrical control installations.
With suitability for controlling loads up to 5.5 kW in AC-3 applications and switching up to 20 A at 690 V AC in AC-1 applications, the MC2A310ARJ provides a compact alternative to larger contactors. Its wall or rail mounting capability allows flexible installation inside control panels and electrical assemblies.
Key Advantages
- Compact three-pole mini contactor for motor and control applications.
- 3NO main contacts plus 1NO auxiliary contact for control flexibility.
- 110–115 V AC / 110–120 V AC control supply for AC control systems.
- Suitable for motor loads up to 5.5 kW in AC-3 duty.
- Supports switching loads up to 20 A at 690 V AC in AC-1 duty.
- Special screw terminals support secure connection using ring-tongue ferrules.
Key Features
- ABB MC2 mini contactor range.
- MC2A310ARJ product type.
- Three-pole contactor design.
- 3NO main contact configuration.
- 1NO auxiliary contact.
- 110–115 V AC rated control circuit voltage at 50 Hz.
- 110–120 V AC rated control circuit voltage at 60 Hz.
- Special screw terminals for ring-tongue ferrules.
- Suitable for wall or rail mounting.
Reliable Switching for Motor and Control Applications
Mini contactors such as the ABB MC2A310ARJ provide electrically controlled switching for motors and electrical loads while maintaining a compact installation footprint. The three main contacts allow control of three-phase loads, while the auxiliary contact provides an additional switching function for control circuits.
The ABB MC2 series combines robust contactor technology with compact dimensions, making these devices suitable for industrial automation, machinery control and commercial electrical systems where efficient use of panel space is important.
Typical Applications
- Industrial machinery motor control.
- Automation and control panels.
- Commercial building electrical systems.
- OEM machinery assemblies.
- Single-phase and three-phase load switching.
- Electrical control and switching circuits.
