Cutler Hammer MSH81A - Molded Case Switch 800A 600V
Cutler Hammer MSH81A - Molded Case Switch 800A 600V

Cutler Hammer MSH81A - Molded Case Switch 800A 600V

Cutler Hammer
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Cutler Hammer MSH81A is a molded case switch designed for primary circuit isolation and disconnection in industrial power distribution systems. It is rated for 600V AC maximum and carries a continuous current rating of 800A, with an AIC rating suitable for high-fault applications. The unit features a three-pole configuration with a non-automatic switch mechanism, housed in a compact frame with a weight of 5.19 lb, and includes a rotary handle operator for manual control. This switch complies with UL 489 and NEMA standards, ensuring reliable performance in demanding environments. Typical applications include service entrance disconnects, main switchboards, and motor control centers where robust, high-current switching is required.

Key Features & Specifications
  • Type: Molded case switch, non-automatic, rotary handle operator
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Dimensions: Compact frame size
  • Standards: UL 489, NEMA
  • Applications: Service entrance disconnects, main switchboards, motor control centers
  • Switch Type: Non-automatic
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable (manual switch)
  • Temp Rating: Standard industrial
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 800A
  • AIC rating: High-fault rated
  • Connection: Line and load terminals
  • Poles: 3
  • Protection: Overcurrent protection not provided (switch only)
  • Functions: Circuit isolation and disconnection
  • Frame Size: Compact
  • Trip Type: None (non-automatic)
  • Panel Type: Suitable for panelboard or switchboard
  • Breaker Type: Molded case switch
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Steel enclosure
  • Panel Style: Standard
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Standard
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panel or switchboard mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: Not applicable
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not applicable
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Open or enclosed
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 800A
  • Amperage Minimum: Not applicable
  • Nema Rating: NEMA 1 or equivalent
  • Switch Style: Rotary handle
  • Wire Size: Not specified
  • Certification: UL listed
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Standard lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, NEMA
  • Compatible Frames: Cutler Hammer MS series
  • Installation Type: Panel or switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: MSH
  • Current Rating: 800A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78667824132
  • GTIN: 00786678241326