KATKO KUE 340 3P main switch 40A

KATKO brand mechanical switch capable of closing, conducting, and breaking currents under normal circuit conditions, including specified overload currents, as well as conducting currents caused by certain abnormal circuit conditions, such as short circuits, for a defined period of time.

NOTE: The switch may be capable of closing but not interrupting short-circuit currents.

Usage categories:

• AC-20A
  • Switching on and off without load.
• AC-21A
  • Switching resistive loads and moderate overloads.
• AC-22A
  • Switching resistive and inductive mixed loads, as well as moderate overloads (e.g., auxiliary motors).
• AC-23A
  • Switching motor loads or other highly inductive loads.

Switch technical details:

• Max rated operating voltage (U_i):
  • 690V
• Rated max motor power (information has been pulled from the contactor, the product catalogues states different information):
  • 208VAC
    • 10HP 3~
  • 415VAC
    • 20HP 3~
  • 480VAC
    • 25HP 3~
  • 600VAC:
    • 30HP 3~
  • 240VAC
    • 5HP 1~
  • 415VAC
    • 10HP 1~
  • 480VAC
    • 15HP 1~
  • 600VAC:
    • 15HP 1~
• Utilization category (Unmarked classes = Manufacturer has not provided information or we just do not have that particular information):
  • AC-1, (I_th, I_u) Non-inductive or slightly inductive loads, example: resistive furnaces, heaters
    • 32A / 690VAC
  • AC-2, Slip-ring motors: starting, switching off
  • AC-3, Squirrel-cage motors: starting, switches off spinning motors
  • AC-4, Squirrel-cage motors: starting, plugging, inching
  • AC-5a, Switching of discharge lamps
  • AC-5b, Switching of incandescent lamps
  • AC-6a, Switching of transformers
  • AC-6b, Switching of capacitor banks
  • AC-7a, Slightly inductive loads in household appliances: examples: mixers, blenders
  • AC-7b, Motor-loads for household appliances: examples: fans, central vacuum
  • AC-8a, Hermetic refrigerant compressor motor control with manual resetting overloads
  • AC-8b, Hermetic refrigerant compressor motor control with automatic resetting overloads
  • AC-12, Control of resistive loads and solid state loads with opto-coupler isolation
  • AC-13, Control of solid state loads with transformer isolation
  • AC-14, Control of small electromagnetic loads (<72VA)
  • AC-15, Control of electromagnetic loads (>72VA)
  • AC-20, Connecting and disconnecting under no-load conditions
  • AC-21A, (I_e) Frequent switching of resistive loads, including moderate overloads
    • 63A / 690VAC
  • AC-21B, (I_e) Occasional switching of resistive loads, including moderate overloads
  • AC-22A, Frequent switching of mixed resistive and inductive loads, including moderate overloads
    • 40A / 690VAC
  • AC-22B, Occasional switching of mixed resistive and inductive loads, including moderate overloads
  • AC-23A, Frequent switching of motor loads or other highly inductive loads
    • 25A / 415VAC
    • 25A / 690VAC
  • AC-23B, Occasional switching of motor loads or other highly inductive loads
  • DC-1, Non Inductive or slightly inductive loads, resistance furnaces, heaters
  • DC-3, Shunt-motors, starting, plugging(1), inching(2), dynamic braking of motors
  • DC-5, Series-motors, starting, plugging(1), inching(2), dynamic braking of motors
  • DC-6, Switching of incandescent lamps
  • DC-12, Control of resistive loads and solid state loads with opto-coupler isolation
  • DC-13, Control of electromagnetics
  • DC-14, Control of electromagnetic loads when having variable resistors in the circuit
  • DC-20A, Frequent connecting and disconnecting under no-load conditions
  • DC-20B, Occasional connecting and disconnecting under no-load conditions
  • DC-21A, Frequent switching of resistive loads, including moderate overloads
    • 32A (depends on the operating voltage and number of contacts in series)
  • DC-21B, Occasional switching of resistive loads, including moderate overloads
    • 32A (depends on the operating voltage and number of contacts in series)
  • DC-22A, Frequent switching of mixed resistive and inductive loads, including moderate overloads (i.e. shunt motors)
    • 32A (depends on the operating voltage and number of contacts in series)
  • DC-22B, Occasional switching of mixed resistive and inductive loads, including moderate overloads (i.e. shunt motors)
    • 32A (depends on the operating voltage and number of contacts in series)
  • DC-23A, Frequent switching of highly inductive loads (i.e. series motors)
    • 30A (depends on the operating voltage and number of contacts in series)
  • DC-23B, Occasional switching of highly inductive loads (i.e. series motors)
    • 30A (depends on the operating voltage and number of contacts in series)

Standards:

• IEC 60 947-3
• IEC 60 269-2
• UL 60947-4-1A (16-150 A)