Overview
The Furnas 45GG10AJA is a Class 45 definite purpose contactor engineered for precise motor control and automation in commercial and light industrial applications. This 1-pole with shunt bar configuration features a 40 Amp rating with 24V 50/60Hz coil, making it ideal for single-phase applications in HVAC systems, refrigeration units, and motor-driven equipment.
Key Features
- Weld-resistant silver cadmium oxide contacts with quiet operation
- Compact design with enclosed body and coil for quiet operation
- Box lug terminals for 40A version for secure electrical connections
- Durable metal back plate for universal mounting and reliable mechanical operation
- Visible contact position window for operational verification
- Class F coil insulation provides greater thermal stability during operation
Technical Specifications
- Rating: 40 Amp Full Load Amps
- Configuration: 1-Pole with Shunt Bar
- Coil Voltage: 24V AC, 50/60 Hz
- Contact Type: Normally Open Double Make
- Contact Material: Silver-Cadmium Oxide (weld-resistant)
- Coil Insulation: Class F
- Termination: Box Lugs
- Mounting: Universal mounting compatible with back plate
- Certifications: cRUus, ARI 780 & 790, UL File E14900
Typical Applications
The Class 45 contactor is commonly used in air conditioning, refrigeration, and motor control applications. This unit is particularly suited for:
- HVAC compressor and condenser motor control
- Refrigeration systems
- Single-phase motor starting and stopping
- Light industrial automation
- Commercial cooling equipment
Compatibility & Replacements
Compatible With
- Class 45 motor control systems
- 24V AC control circuits
- Standard HVAC and refrigeration equipment
- Single-phase motor starter packages
Replaces / Drop-In Replacement For
Replaces Siemens/Furnas 45FG10AJA and 45GG10AJA. Cross-compatible with the following models under equivalent rating:
- Schneider/Square D 8910DP41V14
- Eaton/Cutler Hammer C25CNB140T
- GE CR453CD3HAA
- Allen Bradley 400-DP40NJ1
Works With
- 24V AC control logic and circuits
- Standard HVAC control modules
- Refrigeration control systems
- Motor starter assemblies and panels








