Basic Info.Model NO.KI-67Breaking CapacityHigh Voltage Circuit
BreakersOperationElectric TypeSpeedHigh-Speed Circuit
BreakerArc-extinguishing
MediumAirInstallationFixedStructureConventional Circuit BreakerMax
Current5AMax Voltage24vdc/250vacTemperature Range50-150
CentigradeTemperature Tolerance± 5 /± 3/± 10 CentigradeReset
Temperature2/3 Operating TemperatureLife Span10000 CyclesAction
TypeNormal Open & Normal CloseMaterialMetal & BakeliteWire Type3622
Amg22#TypeCircuit
BreakerTrademarkKainSpecificationCustomizedOriginGuangdong,
ChinaProduct Description KI67 universal and enhanced serial thermal
protectors are widely used in industry, electrical household
appliance and electric equipment to avoid abnormal operation caused
by overcurrent and overtemperature. The products provide effective,
reliable and safe protection. The enhanced casing is suitable for
internal installation of plastic hermetic motor, which can bear the
plastic molding pressure at 3.5Mpa. The performance of the products
satisfies the standards including IEC34-11, GB13232, GB/T13002,
etc. Structure and protection principle KI66 type thermo protector
is composed of the parts of thermal conductive casing, bimetallic
parts welded with silver alloy contact point, conductive bracket,
insulation fixation stand, fixed contact strip and heat resistance
cable. When current passes through the bimetallic parts with
resistance and in case of abnormal operation, along with the
increase of current or the environment temperature rises to the set
value, the bimetallic parts perform quick action, opens the contact
point, and disconnects the circuit. When the device is cooled to
the temperature for safe operation, the contact point will
automatically closes and recover normal operation. Structure figure
Note 1. Because the casing is made of conductive metal, thermal
conductive and heat resistance insulation sleeves are required for
use. 2. Refer to A-C graph for selecting protection temperature.
Rated action temperature table Type Open Temperature Range Type
Open Temperature Range 50'C 50± 5.0'C 100'C 100± 5.0'C 55'C 55±
5.0'C 105'C 105± 5.0'C 60'C 60± 5.0'C 110'C 110± 5.0'C 65'C 65±
5.0'C 115'C 115± 5.0'C 70'C 70± 5.0'C120'C 120± 5.0'C 75'C 75±
5.0'C 125'C 125± 5.0'C 80'C 80± 5.0'C 130'C 130± 5.0'C 85'C 85±
5.0'C135'C 135± 5.0'C 90'C 90± 5.0'C 140'C 140± 5.0'C 95'C 95±
5.0'C 145'C 145± 5.0'C 150'C 150± 5.0'C Note: The recovery
temperature is 2/3 of the standard action temperature with the
tolerance of ± 15'C or specified by customer Contact point maximum
capacity TH serial protectors can perform 5000 times of connection
and disconnection protection under the following conditions.
Voltage 24V-DC 125V-AC 250V-AC Current 12A 12A 8A Installation and
overall dimensions Cable The cables are AWG20#, 22# silicone cable
and electronic irradiated cable. Customized service is available.
A-C graph Critical current & ambient temperature graph (It is to
consider current effect while selecting the protection temperature)
Type OpenTemperature Range Type OpenTemperature Range 50C 50± 5.0C
100C 100± 5.0C 55C 55± 5.0C 105C 105± 5.0C 60C 60± 5.0C 110C 110±
5.0C 65C 65± 5.0C 115C 115± 5.0C 70C 70± 5.0C 120C 120± 5.0C 75C
75± 5.0C 125C 125± 5.0C 80C 80± 5.0C 130C 130± 5.0C 85C 85± 5.0C
135C 135± 5.0C 90C 90± 5.0C 140C 140± 5.0C 95C 95± 5.0C 145C 145±
5.0C 150C 150± 5.0C
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