Littelfuse
102A3
1 / 1
Description
A unique microcontroller-based voltage and phase-sensing circuit constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels. The Model 102A includes advanced single LED diagnostics. Five different light patterns distinguish between faults and normal conditions.- Part Number
- 102A3
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Specifications
- Input Voltage (V)
- 190 to 480VAC
- Maximum Input Power
- 5W
- Input AC Line Frequency (Hz)
- 50/60Hz (50Hz will increase all delay timers by 20%.)
- Output Form
- SPDT - 1 Form C
- Output Load Rating (VA)
- Pilot Duty: 480VA @ 240VAC; General Purpose: 10A @ 240VAC
- Restart Delay Range
- After a Fault: 2s; After a Complete Power Loss: 2s
- Trip Delay Range
- Low/High Voltage: 2-30 seconds adj.; Unbalance and Phasing Faults: 2 seconds
- Trip Point Accuracy (%)
- ±1%
- Undervoltage Trip Voltage
- 90%
- Undervoltage Reset Voltage (%)
- 93%
- Voltage Unbalance Trip Point (%)
- 6%
- Voltage Unbalance Reset (%)
- 4.50%
- Termination Type
- Torque: 7in-lbs; Wire Size: 12-18AWG
- Mounting Method
- #8 screws
- Operating Temperature
- -40° to 70°C (-40° to 158°F)
- Storage Temperature (F/C)
- -40° to 80°C (-40° to 176°F)
- Dimensions
- 2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)
- Weight (lbs/g)
- 1.05 lbs. (16.8 oz. 476.3 g)
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