EATON D26MR53A Machine Tool Relay

EATON D26MR53A Machine Tool Relay

Product Overview

The EATON D26MR53A is a heavy-duty machine tool relay designed for industrial applications requiring high-current switching (up to 70A). It features dual contacts with silver-nickel/tungsten material for enhanced durability, making it suitable for A/C systems, engine cooling fans, and starter motors in harsh environments .

Key Features & Technical Specifications

1. Electrical Performance

• Contact Configuration: 1A (Dual) with silver-nickel/tungsten plating .

• Current Rating:

  • 70A at 12VDC (resistive load)

  • 35A at 24VDC (resistive load) .

• Max Switching Current: 240A for 3 seconds (12.8VDC) .

• Dielectric Strength: 500V RMS .

2. Mechanical & Environmental

• Operating Temperature: -25°C to +85°C (ambient) .

• Vibration Resistance: 10–50Hz, 4.4g (no state change) .

• Shock Resistance: 30g, 8ms (no state change) .

3. Durability & Lifespan

• Electrical Life: 100,000 operations (min.) .

• Mechanical Life: 1 million operations (min.) .

Applications

1. Automotive Systems:

   • A/C compressors, radiator fans, starter motors .

2. Industrial Machinery:

   • High-current load switching in machine tools .

3. Energy Systems:

   • Battery disconnection circuits .

Installation Notes

1. Terminals: 6.3mm flat terminals (ensure secure connections) .

2. Coil Suppression: Optional resistor/diode for inductive loads .

3. Mounting: Verify vibration/shock resistance requirements .

The structure and details of the product：

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