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Small size
* Compared to the conventional type, miniaturized as 50% in volume, 60% in mounting area, 13.5mm in height.
Two kinds of contact arrangements are provided as
1 Form C and 2 × 1 Form C for controlling the direction of motor rotation.
High capacity
* Employs highly conductive material, sufficient cross area of conductor and heat radiant design capable of 25A switching current.
Over current protection
* In case of over current, contacts are designed to open automatically during overload conditions.
POWER WINDOW, DOOR-LOCK(KEYLESS ENTRY SYSTEM), SEAT CONTROL, SUN ROOF, DOOR MIRROR, FLASHER UNIT
 
Part No. Rated
Voltage		 Coil
Resistance(±10%)		 Pull-in
Voltage		 Drop-out
Voltage		 Rated
Power
KTB1-160 12VDC 160Ω 6.5V 0.8V 0.9W
KTB1-225 12VDC 225Ω 7.7V 0.8V 0.64W
KTB2-160 12VDC 160Ω 6.5V 0.8V 0.9W
KTB2-225 12VDC 225Ω 7.7V 0.8V 0.64W
Rated at 20℃ ambient temperature
External Dimensions
Wiring Diagram
PC Board Pin Layout
External Dimensions
Wiring Diagram
PC Board Pin Layout
ITEM SPECIFICATION
Contact Arrangement KTB1 : 1 Form C             KTB2 : 2 × 1 Form C
Contact Material AgSnO₂
Rated Load 25A at 14VDC Motor Load / Locked Rotor
Contact Resistance Max. 50MΩ (at 6VDC 1A voltage drop method)
Max. Switching Current 30A
Max. Carrying Current 20A for 10minutes at 20℃
Dielectric Strength 500VAC for 1minute (between coil and contact)
500VAC for 1minute (between open contacts)
Insulation Resistance Min. 100MΩ (at 500VDC)
Operate Time Max. 10ms (at rated voltage)
Release Time Max. 10ms (at rated voltage)
Shock False Operation Min. 10G (shock wave 11ms)
Endurance Min. 100G (shock wave 11ms)
Vibration False Operation 10 to 500㎐ 4.4G
Endurance 10 to 500㎐ 4.4G
Mechanical Life 10×106 Operations (switching frequency 300 cycles/minute)
Electrical Life 0.1×106 Operations at rated load (on:1sec/off:9sec)
Ambient Temperature -40℃ to ＋85℃
Weight KTB1 : Approx. 5g KTB2 : Approx. 9.5g