1. Important Safety Information
Read and understand all instructions before installing, operating, or maintaining this product. Failure to follow these instructions may result in property damage, serious injury, or death.
- Electrical Hazard: Disconnect all power before working on the contactor or connected equipment.
- Installation and servicing must be performed by qualified personnel only.
- Ensure proper grounding and wiring in accordance with local and national electrical codes.
- Do not operate the contactor if it is damaged or shows signs of wear.
- Wear appropriate personal protective equipment (PPE) when working with electrical components.
2. Product Overview
The Honeywell DP2030C5003/U Powerpro Definite Purpose Contactor is designed for switching induction motors. It meets ARI-780 standards for mechanical and electrical life cycles, ensuring reliability in demanding applications. This 2-pole contactor is rated for 208/240 Vac operation and features a 30A AFL rating.
Key features include:
- Silver cadmium oxide contacts for extended life under demanding duty cycles.
- Low-profile design to facilitate more wiring room.
- Multiple mounting holes and slots for interchangeable mounting with various devices.

Figure 1: Front view of the Honeywell DP2030C5003/U Powerpro Contactor, showing terminals L1, L2, T1, T2, and coil voltage specifications.

Figure 2: Side view of the Honeywell DP2030C5003/U Powerpro Contactor, illustrating its compact, low-profile design and mounting bracket.
3. Specifications
| Specification | Value |
|---|---|
| Model Number | DP2030C5003/U |
| Voltage Rating | 208/240 Vac |
| Coil Voltage | 208-220 Vac (50Hz), 208-240 Vac (60Hz) |
| Pole Configuration | 2 Pole |
| Amperage Full Load (AFL) | 30A |
| Temperature Range | -20°F to 65°F (-29°C to 18°C) |
| Contact Material | Silver Cadmium Oxide |
| Mechanical Life Cycle | 500,000 cycles |
| Electrical Life Cycle | 200,000 cycles |
| Dimensions (approx.) | 3.46 x 2.68 x 2.36 inches |
| Weight (approx.) | 8.89 ounces |
| Manufacturer | Honeywell |
4. Installation and Setup
Before beginning installation, ensure all power to the circuit is disconnected at the main breaker or fuse panel. Verify with a voltage meter that no power is present.
- Mounting: Select a suitable mounting location within the electrical enclosure. The contactor features multiple mounting holes and slots for flexible installation. Secure the contactor firmly using appropriate fasteners.
- Wiring: Connect the line voltage (208/240 Vac) to the L1 and L2 terminals. Connect the load (e.g., motor) to the T1 and T2 terminals.
- Coil Connections: Connect the control circuit wiring to the coil terminals (typically labeled A1 and A2 or similar). Important Note: This Honeywell DP2030C5003/U model is designed with a 208/220 VAC (50Hz) or 208/240 VAC (60Hz) coil voltage. Ensure your control circuit provides the correct voltage for the contactor coil. Incorrect coil voltage can prevent proper operation or damage the unit.
- Verify Connections: Double-check all wiring connections for tightness and correctness according to the system's wiring diagram. Ensure no bare wires are exposed.
- Restore Power: Once all connections are secure and verified, restore power to the circuit.
5. Operation
The Honeywell DP2030C5003/U contactor operates by receiving a control signal to its coil. When the appropriate voltage (208/240 Vac) is applied to the coil, an electromagnetic field is generated, causing the contacts to close. This action completes the power circuit to the connected induction motor, allowing it to start.
When the control signal to the coil is removed, the electromagnetic field collapses, and the contacts open, interrupting power to the motor and causing it to stop. The contactor is designed for reliable switching within its specified temperature range of -20°F to 65°F.
6. Maintenance
Regular inspection and maintenance can help ensure the longevity and reliable operation of your contactor. Always disconnect power before performing any maintenance.
- Visual Inspection: Periodically inspect the contactor for any signs of physical damage, discoloration, or loose connections.
- Contact Condition: Check the contacts for excessive pitting or wear. While silver cadmium oxide contacts are designed for long life, severe arcing can reduce their lifespan.
- Cleanliness: Keep the contactor free from dust, dirt, and debris, which can interfere with proper operation and heat dissipation.
- Tightness of Connections: Ensure all terminal screws remain tight to prevent overheating and intermittent operation.
7. Troubleshooting
If the contactor is not operating as expected, consider the following common issues and solutions:
- Contactor Does Not Engage:
- Verify that the correct control voltage (208/240 Vac) is being supplied to the coil terminals.
- Check for loose or broken coil wiring.
- Ensure the control circuit is active and providing power.
- Inspect the coil for damage or signs of overheating.
- Contactor Hums Loudly:
- A slight hum is normal, but a loud hum may indicate a loose shading coil or foreign material preventing the armature from seating properly.
- Check for proper mounting and ensure no vibrations are being amplified.
- Contactor Overheats:
- Ensure the contactor is not operating above its rated current (30A AFL).
- Check for loose connections at the terminals, which can cause resistance and heat.
- Verify adequate ventilation around the contactor.
If troubleshooting steps do not resolve the issue, contact a qualified electrician or Honeywell technical support.
8. Warranty Information
Honeywell products are manufactured to high-quality standards. For specific warranty terms and conditions applicable to the DP2030C5003/U Powerpro Contactor, please refer to the documentation provided with your purchase or visit the official Honeywell website. Keep your proof of purchase for warranty claims.
9. Support
For technical assistance, product inquiries, or further support, please contact Honeywell customer service or visit their official support website. Contact information can typically be found on the Honeywell website or product packaging.
Honeywell Official Website: www.honeywell.com