Eaton DILM300A/22 (RA250) – Heavy-Duty AC Power Contactor with Auxiliary Contact
The Eaton DILM300A/22 (RA250) is a heavy-duty, three-pole, AC-operated power contactor from the DILM series. It is engineered for the reliable switching and control of large three-phase motors and high-power AC loads in demanding industrial environments. The "A/22" in the model name and the "(RA250)" coil code define its specific configuration and operating voltage.
Parameter Specification / Description
Manufacturer & Model Eaton DILM300A/22 (RA250)
Product Line DILM Series (Heavy-Duty Industrial Contactors)
Main Circuit
Number of Poles 3 (Three-Pole)
Rated Operational Current (Ie) at AC-3 300 A (For starting and stopping squirrel-cage motors)
Rated Insulation Voltage (Ui) 690 V / 750 V
Rated Operational Voltage (Ue) Up to 690 V AC
Motor Power Rating (at 400V, AC-3) Approx. 160 kW / 215 HP
Motor Power Rating (at 690V, AC-3) Approx. 250 kW / 335 HP
Auxiliary Contacts (from "/22") 2 Normally Open (NO) + 2 Normally Closed (NC)
Auxiliary Contact Rating Typically AC-15: 6 A; DC-13: 0.3 A (Confirm from datasheet)
Control Coil
Coil Code RA250
Coil Supply Alternating Current (AC)
Rated Coil Voltage (Us) 250 V AC, 50/60 Hz
Coil Power Consumption Approx. 500 VA (inrush) / 40 W (holding) (Typical, verify with datasheet)
General Characteristics
Electrical Life (AC-3) > 500,000 operations (at rated load)
Mechanical Life > 10 million operations
Terminal Type Screw Clamp Terminals (main and auxiliary). Main terminals may require large cable lugs.
Mounting Panel Mounting (via front mounting holes) is standard for this size. DIN rail mounting is typically not used for DILM300.
Ambient Temperature Range -25°C to +60°C (Operation)
Standards & Approvals IEC/EN 60947-4-1, CE, CCC, UL Listed (Check specific catalog)
Dimensions (L x W x H) Approx. ~ 200 mm x 180 mm x 150 mm (Always refer to official dimensional drawing)
Net Weight Approx. ~ 8 kg