The 1494G-BF3N is the core model of Allen-Bradley® 1494G series heavy-duty industrial safety disconnect switches. Its complete model number, 1494G-BF3N-989, indicates that an auxiliary contact module (suffix code 989) has been added to the base model. The following parameters are compiled from the sections on "Industrial Safety Disconnect Switches" and "Auxiliary Contacts" in the documentation.
Core Specifications
Parameter Category Specification Value
Base Model Number 1494G-BF3N (main switch) + 989 (auxiliary contact module)
Current Rating 30 A
Rated Voltage 600V AC / 250V DC
Horsepower Output - 7.5 HP at 480V AC
- 15 HP at 600V AC
- 5 HP at 250V DC
Insulation Class UI (UL/IEC): 660V
Enclosure Protection Type 3R/4/12 (rainproof, dustproof, corrosion-resistant, painted metal enclosure)
Mechanical Life 20,000 operations (typical)
Switching Frequency ≤300 operations/hour
Auxiliary Contact Module
• Contact Configuration: 1 normally open (NO) + 1 normally closed (NC) auxiliary contact
• Electrical Ratings:
• AC Load: 10 A @ 250V AC
• DC Load: 0.3 A @ 250V DC
• Standard Certifications: UL 508, IEC/EN 60947-5-1 (compliant with C300/R150 rating)
• Functions:
• Real-time feedback of switch blade position (ON/OFF status)
• Supports PLC interlock control for equipment safety interlock systems