Eaton SDAINLM30 Reversing Contactor Combination 230V 50Hz / 240V 60Hz 30A 15kW 3-Pole 278361

Industrial electricians and panel builders use the Eaton SDAINLM30 reversing contactor combination to control three-phase motors up to 15 kW in machine tools, conveyors, and pump systems. This 3-pole device combines two contactors in a single housing for reversing operation, with a coil rated 230 V at 50 Hz or 240 V at 60 Hz. Screw terminals and DIN rail or screw mounting simplify installation in control cabinets. Built-in auxiliary contacts (2 NO + 2 NC) support interlocking and signaling.

Key specifications

• Rated operational current (AC-3, 400 V): 30 A
• Rated operational power (AC-3, 400 V): 15 kW
• Coil voltage: 230 V (50 Hz) / 240 V (60 Hz)
• Number of main poles: 3
• Auxiliary contacts: 2 NO + 2 NC
• Connection type: Screw terminals
• Mounting: DIN rail / screw mounting
• Degree of protection: IP20
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Ambient operating temperature: -25 to +60 °C
• Electrical life (AC-3): 1.5 x 10^6 operations
• Mechanical life: 10 x 10^6 operations
• Short-circuit protection max. fuse: 63 A gG/gL
• Compatible with ZB32 thermal overload relays

Why choose it

This reversing contactor combination integrates two contactors in one compact unit, reducing wiring time and panel space. The wide coil voltage range covers both 50 Hz and 60 Hz supplies, and the built-in auxiliary contacts simplify control circuit design.

Ideal use cases

• Reversing motor control for conveyors and hoists
• Machine tool spindle direction control
• Pump systems requiring bidirectional operation

Good to know

The device meets IEC/EN 60947 standards and is suitable for use with thermal overload relays from the ZB32 series for motor protection.