KA-315

製品名KA-315

Prevents burnout of a three-phase motor

Basic Characteristics

Product summary

Detects overcurrent / locked rotor current and protects a motor from burnout
Product purpose

Prevent burnout of general-purpose three-phase motors
Intended use

Submerged pump
Various general-purpose motors
and more
Operating type

Bimetal type (Convert a current applied to the product into heat in the internal heater, which then operates the bimetal and interrupts the circuit)
Compatible standard

UL (with some exceptions)

Mechanical Characteristics

Case material

Phenolic resin
(UL 94, V-0)
Operating temperature range

Temperature near motor: 20°C to 100°C
No freezing or condensation allowed
Connection terminal type

Solder incurved terminal
With auxiliary metal fittings for fixing leads in place
Product mounting method

Fixed in place with M4 screws or by other means
66-mm interval

Electrical Characteristics

Rated voltage

AC 250/500V
Rated capacity

Up to 15 kW
Contact withstand current

300/200A
Contact withstand count

1,000 times or more
Withstand voltage

1500 V for 1 minute
Leakage current: 10 mA or less
Insulation resistance

50 MΩ or higher with a 500-VDC megohmmeter

Characteristics Unique to This Product

  • Set operating temperature: 100°C to 140°C
  • Set return temperature: 60°C to 70°C
  • Temperature tolerance: ±10°C
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