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Crouse-Hinds T77SA - Safety Switch 200A 600V (3-Pole NEMA 1)

Thomas & Betts
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Crouse-Hinds T77SA is a heavy-duty safety switch designed for industrial power distribution and motor circuit isolation. It is rated for 600V AC and 200A continuous current, providing reliable overcurrent and short-circuit protection. The switch measures 12-1/8 inches wide by 3-5/8 inches deep by 5-13/16 inches high and weighs 5.19 lb, featuring a NEMA-rated enclosure for robust construction. It complies with UL 98 and CSA C22.2 standards for safety and performance. Typical applications include branch circuit disconnection, machinery control panels, and commercial electrical systems.

Key Features & Specifications
  • Type: Heavy-duty safety switch, NEMA-rated enclosure, manual operation
  • Voltage Rating: 600V AC
  • Current Rating: 200A
  • Dimensions: 12-1/8 in W x 3-5/8 in D x 5-13/16 in H
  • Standards: UL 98, CSA C22.2
  • Applications: Industrial power distribution, motor circuit isolation, branch circuit disconnection
  • Switch Type: Heavy-duty safety switch
  • Configuration: 3-pole, single-throw
  • Coil Voltage Maximum: Not applicable (manual switch)
  • Temp Rating: -20°C to 40°C
  • Shipping Dimensions: 13 in x 5 in x 7 in
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 200A
  • AIC rating: 10kA at 600V AC
  • Connection: Screw terminals
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: On/Off disconnection
  • Frame Size: 200A frame
  • Trip Type: Not applicable (manual switch)
  • Panel Type: NEMA 1
  • Breaker Type: Not applicable
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 250 MCM
  • Metal Type: Steel
  • Panel Style: Surface mount
  • Bus Type: Copper
  • Fuse Class: Class H
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: 1 per phase
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: 1.5 in
  • Clas: Not applicable
  • Mounting: Surface mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 100 HP at 600V
  • Aux Contacts: 1 N.O. + 1 N.C.
  • CPT: Not included
  • Full Load Amps: 200A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 200A
  • Full Load Amp Minimum: 0A
  • Enclosure: NEMA 1
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/Aluminum
  • Amperage Maximum: 200A
  • Amperage Minimum: 0A
  • Nema Rating: NEMA 1
  • Switch Style: Heavy-duty
  • Wire Size: 250 MCM max
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-wire
  • Standards: UL 98, CSA C22.2
  • Compatible Frames: 200A frame
  • Installation Type: Surface
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Not applicable
  • Current Rating: 200A
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 786210104355
  • GTIN: 00783936080369