PT11 113370 OMRON Basis for relay Base LY 11 pins 10A solder terminals View larger
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PT11 113370 OMRON Basis for relay Base LY 11 pins 10A solder terminals





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Basis for relay Base LY 11 pins 10A solder terminals

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Electromechanical Relays

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K8AK-TS/-PT Temperature monitor
Thermistor motor protection relay
The K8AK-TS is the temperature monitoring relay based on the thermistor detection and can protect the motor from overheating.
The K8AK-PT gives further functionalities such as temperature, 3-phase sequence and loss monitoring and contributes to the overall safety 3-phase motor‘s operation.
• DIN 22.5-mm-sized K8AK-PT relays
• Side-by-side mounting of K8AK-PT relays
• Specially designed for internal motor monitoring, no setting required
• Test/Reset button for confirmation of output operation
• Monitoring also performed for thermistor disconnections and short circuits
• Manual or automatic resetting with the same relay
Ordering information
Rated input Order code Temperature monitoring 24 VAC/DC K8AK-TS1 24 VAC/DC Phase sequence, phase loss and temperature monitoring 100 to 240 VAC K8AK-PT1 100-240 VAC
K8AK-TS1 100-240 VAC
Ambient operating temperature –20 to 60°C (with no condensation or icing) Storage temperature –25 to 65°C (with no condensation or icing) Input frequency 50/60 Hz (AC power supply)
Output relays
(2 × SPDT, normally closed operation)
Resistive load 5 A at 250 VAC or at 30 VDC Maximum contact voltage 250 VAC or 30 VDC Maximum contact current 5 A
Maximum switching capacity 1,250 VA, 150 W
Mechanical life 10,000,000 operations
Electrical life 50,000 operations at 250 VAC or 30 VDC
Degree of protection Terminal section: IP20
Case material PC and ABS UL94 V-0
Weight Approx. 150 g
Rated input voltage 3-phase, 3-wire mode: 200 to 480 VAC
Reset method Manual reset/automatic reset (switchable)*1
Operating time (T) Phase-sequence on three-phase voltage input
Phase loss on three-phase voltage input
0.1s ±0.05s
0.1 s max. (when the voltage changes rapidly from 100 to 0% of rated voltage)
PTC thermistor input 0.2 s max.
Overload capacity Continuous input: 528 V
Indicators Power (PWR): Green, PH alarm outputs (ALM): Red, TS alarm outputs (ALM): Red
Applicable standards Conforming standards EN 60947-5-1
Installation environment (pollution level 2, installation category III)
EMC EN 60947-5-1
Safety standards UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC
Size in mm (H × W × D) 90 × 22.5 × 100
*1 Manual reset method: Press the TEST/RESET button.

Datasheet - PDF

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