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Twin coil automotive relay for controlling the direction of motor rotation(KTA2) |
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For the application of intermittent windshield wiper, achieved the same quietness level as CX Type having a big track record(KTA1)
| ＊Designed especially to be quiet in the state of actual use. |
| ＊Employs the flat type net copper wire and the double cover construction is the same as CX Type. |
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Almost same mounting space as KTX2 Type
| ＊Despite double cover construction, achieved almost the same mounting space as KTX2 Type by incorporating KTB2 RELAY. |
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Over current protection
| ＊In case of over current, contacts are designed to open automatically during the overload conditions. |
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POWER WINDOW (KTA2), DOOR-LOCK (KTA2), INTERMITTENT WIPER (KTA1) |
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| Part No. |
Rated
Voltage |
Coil
Resistance(±10%) |
Pull-in
Voltage |
Drop-out
Voltage |
Rated
Power |
| KTA1-160 |
12VDC |
160Ω |
6.5V |
0.8V |
0.9W |
| KTA1-225 |
12VDC |
225Ω |
7.7V |
0.8V |
0.64W |
| KTA2-160 |
12VDC |
160Ω |
7.0V |
0.8V |
0.9W |
| KTA2-225 |
12VDC |
225Ω |
8.0V |
0.8V |
0.64W |
| Rated at 20℃ ambient temperature |
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External Dimensions |
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Wiring Diagram |
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PC Board Pin Layout |
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External Dimensions |
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Wiring Diagram |
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PC Board Pin Layout |
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| ITEM |
SPECIFICATION |
| Contact Arrangement |
KTA1 : 1 Form C |
KTA2 : 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 |
KTA1 : Approx. 8g |
KTA2 : Approx. 13g |
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