Description
Product Parameters
- Model Number: 04220GL21204A (also referred to as IC04220GL21204A)
- Type: DC Magnetic Contactor
- Series: GE DC Contactor Line (Legacy/Heavy Duty)
- Current Rating: 200 Amps (Typical for GL series frame size)
- Voltage Rating: Up to 600V DC
- Coil Voltage: Verify via nameplate (Standard configurations often include 115V or 230V DC coils)
- Pole Configuration: Normally Open (N.O.) Main Poles
Product Description The GE 04220GL21204A is a rugged, heavy-duty DC magnetic contactor designed for industrial applications requiring frequent switching of high-current DC loads. Part of GE’s established industrial control line, this contactor features massive copper contacts and powerful blowout magnets. The blowout magnets are essential for DC operation, as they “stretch” and extinguish the electrical arc that forms when the contacts open, preventing damage to the contact surfaces. Its open-frame design allows for easy inspection and maintenance of the contact tips and coil assembly.
Application Areas This contactor is primarily found in the metal and mining industries, as well as in transportation and heavy manufacturing. Common applications include:
- DC Motor Control: Starting, stopping, and reversing large DC motors.
- Mining Equipment: Power switching in draglines and shovels.
- Steel Mills: Controlling overhead cranes and rolling mill auxiliaries.
- Battery Charging: High-current disconnects for large industrial battery banks.
Product Specifications
- Weight: Approximately 4.5 kg to 6.8 kg (depending on specific mounting hardware)
- Construction: Steel frame with phenolic insulation components.
- Country of Origin: USA
- Mounting: Vertical orientation required for optimal arc chute performance.
Operational Precautions
- Arc Chute Inspection: Never operate the contactor without the arc chutes properly installed. The chutes contain the ionized gases and prevent phase-to-phase or phase-to-ground short circuits during opening.
- Contact Maintenance: Periodically check the contact tips for excessive pitting or “beading.” While minor discoloration is normal, contacts should be replaced when the silver cadmium oxide facing is significantly worn.
- Coil Polarity: If the coil is equipped with a suppression diode or varistor, ensure the DC polarity is correct to avoid immediate damage to the suppression component.
- Environmental Debris: Because this is an open-style contactor, ensure the installation environment is free from conductive dust or metallic shavings that could cause tracking across the insulation.
Recommended Similar Product Models
| Model Number | Category | Current Rating |
|---|---|---|
| 04220GL21202A | DC Contactor | Similar frame, different coil/aux |
| 04220HD123A | DC Contactor | 300 Amp Frame |
| IC2800 | Magnetic Contactor | GE General Purpose DC Line |
| IC2800-410 | Contactor | 100 Amp Variant |
| DS3800 | Logic Board | For electronic control of contactors |
