Product Base Model Breakdown
• 1494G: Heavy-duty industrial safety disconnect switch series.
• F: The switch has a rated current of 400 A.
• F3: 3-pole, 3-phase configuration (Note: In the catalog number, "F3" may indicate enclosure type or configuration, but based on context, it refers to 3 poles here).
• J6: Utilizes Class J fuses rated at 600 V AC.
• 98: Option code indicating the inclusion of 1 normally open (NO) auxiliary contact.
Electrical Ratings
• Rated Insulation Voltage (Ui): 600 V AC / 250 V DC (compliant with UL and IEC standards).
• Continuous Current Rating: 400 A (at 600 V AC / 250 V DC).
• Horsepower (HP) Ratings (60 Hz):
• 460 V AC: 250 HP (standard).
• 575 V AC: 350 HP (standard).
• IEC Applications (AC23):
• 440 V / 50 Hz: 185 kW (maximum).
• 550 V / 50 Hz: 257 kW (maximum).
• Fuse Type: Class J, rated at 600 V AC.
Electrical Ratings for Auxiliary Contacts (-98)
• Type: 1 normally open (NO) contact.
• NEMA/EEMAC Ratings: A600, 0600 (10 A, 600 V AC).
• IEC Ratings: AC 15, DC 13 (compliant with IEC/EN 60947-5-1 and UL 508 standards), with a minimum operating voltage of 17 V and a minimum current of 5 mA.
Mechanical Characteristics
• Mechanical Life: Typically 10,000 operations (for a 400 A switch).
• Switching Frequency: Maximum 240 operations per hour.
• Operating Handle: Non-metallic handle (standard), with optional painted metal or stainless steel handles available.
• Enclosure Type: Type 3R/4/12 (painted metal) or Type 4/4X (304 stainless steel), depending on the order code (enclosure not specified in this example, but typically corresponds to a standard painted metal enclosure).
Environmental Specifications
• Operating Temperature: -35°C to +40°C (-31°F to +104°F).
• Storage Temperature: -40°C to +65°C (-40°F to +149°F).
• Altitude: 2000 meters (6562 feet), compliant with IEC 947-1.
• Relative Humidity: 90% at +20°C (+68°F) and 50% at +40°C (+104°F), compliant with IEC 947-3.