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Cutler Hammer MST01DN1P - Non-Fusible Disconnect Switch 600VAC 100A

Cutler Hammer
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Cutler Hammer MST01DN1P is a molded case switch designed for primary circuit isolation and disconnect functions in industrial power distribution systems. It is rated for 600VAC maximum and carries a continuous current rating of 100A, providing reliable switching capability for motor and feeder circuits. The unit features a compact NEMA 1 enclosure with dimensions of 5.5 inches in depth, 6.3 inches in height, and 1.77 inches in width, weighing 1.12 lb, and is constructed with a rotary handle mechanism for positive ON/OFF indication. This switch complies with UL 98 and CSA standards for disconnect switches, ensuring safe operation in branch circuit applications. Typical applications include use as a main disconnect in control panels, machine tools, and lighting systems within commercial and industrial facilities.

Key Features & Specifications
  • Type: Non-fusible disconnect switch, rotary handle, NEMA 1 enclosed
  • Voltage Rating: 600VAC
  • Current Rating: 100A
  • Dimensions: 5.5 in x 6.3 in x 1.77 in (Depth x Height x Width)
  • Weight: 1.12 lb
  • Standards: UL 98, CSA certified
  • Applications: Main disconnect for control panels, machine tools, lighting systems
  • Switch Type: Non-fusible
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (manual switch)
  • Temp Rating: -20°C to 60°C
  • Shipping Dimensions: 6.0 in x 7.0 in x 2.5 in
  • Phase: 3-phase
  • Voltage: 600VAC
  • Amperage: 100A
  • AIC rating: 10kA at 600VAC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent protection not integral (external fusing required)
  • Functions: Disconnect, isolation
  • Frame Size: 100A frame
  • Trip Type: N/A (manual switch)
  • Panel Type: NEMA 1
  • Breaker Type: Molded case switch
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: #14 AWG to #1/0 AWG
  • Metal Type: Steel enclosure
  • Panel Style: Surface mount
  • Bus Type: Copper
  • Fuse Class: N/A (non-fusible)
  • Insulation Temperature: 105°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Surface mount
  • Hz: 50/60 Hz
  • Coil Material: N/A
  • Horse Power: 50 HP at 480VAC
  • Aux Contacts: 1 N.O. + 1 N.C.
  • CPT: Not included
  • Full Load Amps: 100A
  • Dist Voltage: 600VAC
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: NEMA 1
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: Copper or aluminum
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Rotary handle
  • Wire Size: #14 AWG to #1/0 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 No. 4
  • Compatible Frames: 100A frame
  • Installation Type: Surface mount
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: 100A
  • Current Rating: 100A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 60°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 78667862390
  • GTIN: 00786678623900