Cutler Hammer MSH74A - Molded Case Switch 100A 600V
Cutler Hammer MSH74A - Molded Case Switch 100A 600V

Cutler Hammer MSH74A - Molded Case Switch 100A 600V

Cutler Hammer
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The Cutler Hammer MSH74A is a molded case switch designed for primary circuit isolation and load-break applications in industrial power distribution systems. It is rated for 600V AC and 250V DC, with a continuous current rating of 100A, and features a compact, heavy-duty construction with a thermoplastic enclosure and a rotary handle mechanism. This switch complies with UL 98 and CSA C22.2 standards for disconnect switches, ensuring reliable performance in motor control centers, panelboards, and switchboards. Typical applications include service entrance disconnects, machinery isolation, and branch circuit switching in manufacturing facilities, commercial buildings, and utility installations.

Key Features & Specifications
  • Type: Molded case switch, non-fusible, rotary handle
  • Voltage Rating: 600V AC / 250V DC
  • Current Rating: 100A
  • Dimensions: 5.19 lb weight
  • Standards: UL 98, CSA C22.2
  • Applications: Service entrance disconnects, machinery isolation, branch circuit switching
  • Switch Type: Non-fusible disconnect
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (manual switch)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Not specified
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 10kA at 600V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent protection not integral
  • Functions: Isolation and load-break
  • Frame Size: 100A frame
  • Trip Type: None (non-automatic)
  • Panel Type: Suitable for panelboard mounting
  • Breaker Type: Molded case switch
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Copper lugs
  • Panel Style: Enclosed
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not applicable
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 50 HP at 480V
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 100A
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: Type 1
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Rotary
  • Wire Size: #14 to #2 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Screw lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-wire
  • Standards: UL 98, CSA C22.2
  • Compatible Frames: CH series
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100A
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78667824126
  • GTIN: 00786678241265