Eaton Moeller DILM250 High-Current power Contactor

Introduction to Eaton Moeller DILM250 Contactor

The Eaton Moeller DILM250 High-Current Power Contactor is a robust switching device designed for demanding industrial applications. As part of the renowned Eaton Moeller® series, this contactor is engineered to handle high motor loads, offering a perfect balance of performance, reliability, and safety. With a rated operational power of 132 kW at 380/400V and a current rating of up to 250 A (AC-3) , the DILM250 series is the preferred choice for engineers looking to control motors, lighting, and power circuits efficiently .

Key Features and Specifications

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Electrical Ratings

Rated Operational Power (AC-3): 132 kW (380/400 V, 50 Hz) .

Rated Operational Current (Ie):

AC-3: 250 A (up to 500 V) .

AC-1: 429 A (400 V) .

Rated Insulation Voltage (Ui): 1000 V .

Rated Impulse Withstand Voltage (Uimp): 8000 V AC .

Control Circuit (Coil) Versatility

One of the standout features of the DILM250 series is its flexible coil options, allowing for both AC and DC operation across wide voltage ranges. This is a high-value SEO keyword cluster due to the variety of control voltages available:

RA110: 48 - 110 V AC (40-60 Hz) / 48 - 110 V DC .

RA250: 110 - 250 V AC (40-60 Hz) / 110 - 350 V DC .

RDC48: 24 - 48 V DC .

Standard AC: 110-120 V, 220-240 V options .

Mechanical and Environmental Durability

Mechanical Lifespan: Up to 10 million operations (AC/DC operated), ensuring long-term reliability .

Ambient Temperature: Operates reliably between -40 °C and +60 °C (open), making it suitable for harsh environments .

Certifications: UL Listed, CSA Certified, CE Marked, and compliant with IEC/EN 60947-4-1 .

Why Choose the Eaton Moeller DILM250?

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1. IE3 Motor Compatibility

The DILM250 series is specifically designed to be suitable for motors with efficiency class IE3 . As global energy regulations tighten, ensuring compatibility with high-efficiency motors is a critical purchasing factor.

2. Integrated Surge Suppression

The contactor features a suppressor circuit in the actuating electronics . This built-in protection reduces electromagnetic interference (EMI), simplifying panel building and reducing the need for external components.

3. High Short-Circuit Rating (SCCR)

For panel builders, the SCCR is crucial. The DILM250 offers robust short-circuit protection coordination:

Type 1 Coordination: Up to 400 A gG/gL fuses .

Type 2 Coordination: Up to 315 A gG/gL fuses .

UL/CSA Ratings: Features specific Definite Purpose ratings for HVAC applications, such as 250 A FLA (Full Load Amps) and 1800 A LRA (Locked Rotor Amps) .

Applications

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Motor Control: Starting, stopping, and reversing of high-power AC induction motors.

HVAC Systems: Suitable for compressors and large air handling units (UL 1995 rated) .

Railway & Transportation: Compliant with EN 45545 for fire protection on railway vehicles .

Power Distribution: Non-inductive or slightly inductive loads (AC-1).

Installation and Accessories

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Connection: Screw terminals (Main connections: M10, Control: M3.5) supporting busbars or cables up to 240 mm² .

Auxiliary Contacts: Fitting options include up to 2 x DILM820-XHI11(V)-SI auxiliary contact blocks .

Replacement Coils: Individual coils available (e.g., DILM250-S-XSP/E) for maintenance flexibility .

Frequently Asked Questions (FAQ)

Including an FAQ section helps capture voice search and question-based queries.

Q: What is the difference between DILM250 and DILM250-S?

A: The DILM250-S series generally refers to variants with standard AC coils (e.g., 110-120V or 220-240V), while the DILM250/22(RA...) series typically features the "RA" electronic coils that accept both AC and DC voltages .

Q: What is the weight of the DILM250 contactor?

A: The approximate weight is 7.1 kg, depending on the specific model and coil configuration .

Q: Can this contactor be used in DC applications?

A: Yes, specifically models with the RA (e.g., RA250) or RDC coils are designed for AC/DC operation .

Conclusion

The Eaton Moeller DILM250 High-Current Power Contactor represents a state-of-the-art solution for industrial motor management. With its high breaking capacity (2500 A), wide voltage range, and robust safety certifications, it is an ideal component for new panel builds or retrofit projects. For more information, check the latest Eaton catalogs or contact an authorized distributor for specific SKU availability like 208200 or 208201 .

*Keywords used: Eaton Moeller DILM250, DILM250 contactor, 132kW contactor, 250A AC-3 contactor, Eaton high-current contactor, DILM250/22, DILM250-S, AC/DC contactor, IE3 motor contactor, UL 60947-4-1 contactor.*