The 1494G-EF3J6 is a pre-configured model within Allen-Bradley®'s 1494G series of heavy-duty industrial safety disconnect switches, specifically designed for 600V AC applications and integrated with Class J fuse clips.
Core Electrical Specifications
Parameter Category Specification Value
Base Model 1494G-EF3J6 (200A switch + Class J fuse clips)
Rated Switch Current 200 A
Rated Voltage 600V AC / 250V DC
Insulation Class UI (UL/IEC): 600V / 660V
Horsepower Output - 50 HP at 230V AC
- 125 HP at 460V AC
- 150 HP at 575V AC
Maximum Power (AC23) - 48 kW at 220V/50 Hz
- 90 kW at 440V/50 Hz
- 110 kW at 550V/50 Hz
Continuous Current 200 A @ 600V AC
Short-Circuit Withstand - Without Fuse: 10,000 A
- With Class H Fuse: 10,000 A
- With Class J/R Fuse: 200,000 A
Mechanical and Environmental Characteristics
Operational Lifespan
• Mechanical Life: 20,000 operations (typical)
• Electrical Life: 6,000 operations (at rated current)
• Switching Frequency: ≤300 operations/hour
Environmental Parameters
Parameter Specification
Operating Temperature -35°C to +40°C (-31°F to +104°F)
Storage Temperature -40°C to +65°C (-40°F to +149°F)
Relative Humidity 90% @ 20°C, 50% @ 40°C (compliant with IEC 947-3)
Altitude ≤2000 m (6562 ft)
Protection and Safety
• Dielectric Strength: Passes 2200V for 1 minute test
• Enclosure Protection: Type 3R/4/12 (rainproof, dustproof, corrosion-resistant, painted metal enclosure)
• Certification Standards: UL, CSA, CE, CCC