Overview
The Square D 8910DPA43V02 is a compact 3-pole definite purpose contactor engineered for reliable switching in heating, air conditioning, refrigeration, data processing, and food service applications. With a 40A full-load current rating and 50A resistive rating, this contactor delivers proven performance in industrial and commercial environments. The 120V AC 50/60 Hz control coil and 600VAC system voltage rating make it suitable for a wide range of three-phase installations.
Key Features
- 3-pole NO contact configuration with double-break contacts for enhanced reliability
- 40A full-load amperage; 50A resistive amperage; 200,000 electrical operations rated
- Quick connect terminals and box lugs for flexible installation
- Low coil VA with straight-through wiring simplifies panel layout
- Compact, panel-mount design reduces enclosure footprint
- UL Listed (File E42240 NLDX) and CSA Certified (File LR25490 Class 321104)
- Tool-free coil replacement on Type DPA models
- Field-installable auxiliary contact modules
Technical Specifications
Electrical Ratings:
Load Current (Inductive): 40A
Load Current (Resistive): 50A
Poles: 3 Pole
Contact Configuration: 3 N.O. (3PST-NO)
Control Circuit Voltage: 110/120 VAC 50/60 Hz
System Voltage (Maximum): 600 VAC
Switching Power (AC): 25 HP @ 575 VAC 3-phase
Motor Ratings:
— 3 HP @ 115 VAC (1-phase)
— 7.5 HP @ 230 VAC (1-phase)
— 10 HP @ 230 VAC (3-phase)
— 20 HP @ 460 VAC (3-phase)
— 25 HP @ 575 VAC (3-phase)
Physical & Installation:
Mounting Type: Panel Mount
Enclosure Type: Open
Dimensions: 2.37″ W × 2.31″ H × 2.9″ D (60.2 mm W × 58.7 mm H × 73.66 mm D)
Weight: 0.99 lb (0.45 kg)
Electrical Connection: Quick Connect Terminals & Box Lugs
Performance & Reliability:
Electrical Operations: 200,000 rated cycles (DPA type)
Mechanical Operations: 500,000 cycles
Operating Temperature: 0°–65°C
Frequency: 50/60 Hz
Duty Cycle: Continuous
Approvals: UL Listed, CSA Certified, CE Marked
Typical Applications
The 8910DPA43V02 is purpose-built for HVAC equipment, including air conditioning units, heat pump systems, and commercial refrigeration. It is commonly used in food service equipment, data center cooling systems, and general industrial heating applications. The definite purpose design provides cost-effective switching without overengineering, making it ideal for OEMs and retrofit installations where space and budget are considerations.
Compatibility & Replacements
Compatible With
- Three-phase power systems rated 600 VAC and below
- Control circuits operating at 110–120 VAC 50/60 Hz
- Standard industrial push-button stations and pilot devices
- Auxiliary contact modules (field-installable snap-on design)
- DIN track mounting systems (optional)
- Square D Type DPA contactor ecosystem
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 8910DPA43V02 is a direct replacement for earlier 8910DP series 40A definite purpose contactors when coil voltage and pole configuration match. Adjacent models in the range include the 8910DPA42V09 (40A, 2-pole) and 8910DPA52V14 (50A, 2-pole) for different amperage or pole requirements.
Works With
- Square D motor starters and lighting panels
- HVAC control systems (single and three-phase)
- Dual-element fused disconnect switches
- Standard 600V distribution equipment
- Class 9998 replacement contact kits
- Industrial PLC and relay-based control circuits
