Description
300-DODJ930 Allen‑Bradley AC contactor
Product Dimensions：
Product Detailed Description
The Allen-Bradley 300-DODJ930 is a NEMA Size 3 AC contactor from the 300 series, designed for reliable control of electrical loads in industrial applications. It is an open-style, non-reversing contactor with a DC actuation voltage, featuring a 24V DC coil equipped with an integrated diode for noise suppression and enhanced durability. This contactor includes three power poles plus one normally open (N.O.) auxiliary hold-in contact, making it suitable for switching AC and DC loads. It supports screw connections for the main circuit and is built for general-purpose motor control, HVAC systems, and other demanding environments. The product complies with international standards including UL, CSA, CE, KC, and IEC 60947-1.
Product Parameters
The following table summarizes the key technical specifications and parameters for the 300-DODJ930:
| Parameter | Value |
|---|---|
| NEMA Size | Size 3 |
| Number of Power Poles | 3 + 1 N.O. auxiliary hold-in contact |
| Coil Voltage | 24V DC (with integrated diode) |
| Actuation Voltage Type | DC |
| Rated Operational Current (Ie) | 85A @ 690V AC-1 (50/60 Hz, 40°C ambient); 80A @ 600V (enclosed, UL/CSA) |
| Rated Operational Power (Pe) | 90 kW @ 415V AC-1 (50/60 Hz, 40°C ambient); 75 Hp @ 550-600V (enclosed, 3-phase, UL/CSA) |
| Maximum Horsepower Rating | 50 Hp @ 575V (60 Hz, 3-phase) |
| Rated Isolation Voltage (Ui) | 600V (UL/CSA) |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV |
| Conductor Cross-Section (Main Contacts) | 6…50 mm² (2 conductors) |
| General Purpose Current (Enclosed) | 80A @ 600V (UL/CSA) |
| Definite Purpose Rating (LRA) | 630A @ 440-480V AC (3-phase, UL/CSA HVAC) |
| Switching Lighting Loads (Tungsten) | 105A @ 600V (3-phase, UL/CSA) |
| Switching Power Transformers (Apparent Power) | 99 kVA @ 600V AC-6a (60 Hz, n=20) |
| DC Load Switching (3 Poles in Series) | 125A @ 220V (shunt-wound motors, DC-3, 60°C) |
| Operating Time (Closing Delay) | 42…100 ms |
| Operating Time (Opening Delay) | 17…100 ms |
| Pick-Up Voltage Limits | 0.85…1.1 x Us (DC control) |
| Drop-Out Voltage Limits | ≤0.60 x Us (DC control) |
| Insulation Class (Coil) | Class F (IEC 60947-4-1) |
| Protection Class (Main Contacts) | IP00 |
| Ambient Operating Temperature | -40…70°C (storage); operational up to 70°C (derated) |
| Dimensions (W x H x D) | 3.19 in x 4.8 in x 4.8 in |
| Mounting Type | Open style, mountable |
| Torque (Main Contacts) | 6 Nm (recommended) |
| Certifications | UL, CSA, CE, KC; Electromagnetic Compatibility: IEC 60947-1 (Environment A) |
| Short-Circuit Protection (Type 2, IEC) | 880A @ 400V (MCCB, 70 kA fault); 80A @ 690V (gG fuses, 60 kA fault) |
For full technical data, refer to the official specification sheet.
Product Advantages
- High Durability and Reliability: The integrated diode in the 24V DC coil suppresses voltage spikes, reducing wear and extending service life in DC control systems.
- Versatile Load Handling: Supports a wide range of applications, including high-current AC/DC switching for motors, transformers, and lighting, with ratings up to 90 kW/75 Hp.
- Compact and Flexible Design: Open-style construction allows for easy integration into panels or enclosures, with screw terminals for secure, vibration-resistant connections.
- Compliance and Safety: Meets stringent global standards (UL/CSA/IEC), ensuring seamless use in North American and international markets; features like high impulse withstand (8 kV) enhance protection against surges.
- Efficient Operation: Low hold-in power consumption (2 W) and fast switching times (17-100 ms) optimize energy use and system responsiveness in automated processes.
- Cost-Effective Scalability: Part of the modular 300 series, allowing easy addition of accessories for customization without redesign.
Notes and Precautions
- Installation: Ensure proper torque (6 Nm) on main contact screws to avoid loose connections. Use appropriate conductor sizes (6-50 mm²) and follow IEC 60947-4-1 guidelines for wiring.
- Environmental Limits: Rated for altitudes up to 3000 m; derate current above 1000 m. Avoid exposure to excessive vibration or shock beyond IEC 60068-2-6/27 standards.
- Safety: This is an open-type device (IP00); it must be installed in a suitable enclosure to prevent accidental contact. Always disconnect power before servicing. Verify certifications on the product label, as they may vary by manufacturing date (certified as of September 9, 2025).
- Maintenance: Periodically inspect for contact wear, especially in high-cycle applications. Do not exceed thermal limits (e.g., 70°C ambient for full rating).
- Counterfeit Warning: Purchase from authorized distributors to avoid risks associated with unauthorized or counterfeit products, which may lack proper safety features.
- Firmware/Compatibility Note: While not applicable to this contactor, ensure system compatibility in PLC-integrated setups.
Product Applications
The 300-DODJ930 is ideal for industrial automation and control scenarios requiring robust switching. Typical applications include:
- Motor Control: Starting, stopping, and reversing 3-phase AC motors up to 50 Hp in manufacturing lines, pumps, and conveyors.
- HVAC Systems: Definite purpose rating for air handling units, compressors, and fans (LRA up to 630A).
- Lighting and Transformer Switching: Control of tungsten lighting loads (up to 105A) or power transformers (up to 99 kVA) in commercial buildings.
- DC Load Management: Shunt-wound motor starting, reversing, and stepping in battery-powered or renewable energy systems (up to 125A @ 220V).
- General Industrial Use: Integration into motor control centers (MCCs) for OEM machinery, elevators, and process automation where DC coil control is preferred for PLC compatibility.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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