Littelfuse 202 Voltage/Phase Monitor Specifications
3-Phase Line Voltage . . . . . . . . . . . . 190 to 480 VAC
Frequency
. . . . . . . . . . . . . . . . . . . . . 50*/60Hz
Phase Sequence . . . . . . . . . . . . . . . . . . . . . ABC
Low Voltage (% of set point)
- Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 90%
- Reset . . . . . . . . . . . . . . . . . . . . . . . . . 93%
High Voltage (% of set point)
- Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 110%
- Reset . . . . . . . . . . . . . . . . . . . . . . . . . 107%
Voltage Unbalance (NEMA)
- Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 6%
- Reset . . . . . . . . . . . . . . . . . . . . . . . . . 4.5%
Trip Delay Time
- High and Low Voltage . . . . . . . . . . . . . . . . 4 seconds
- Unbalance & Phasing Faults . . . . . . . . . . . . 2 seconds
Restart Delay Time
- After a Fault . . . . . . . . . . . . . . . . . Manual, 2-300 seconds adj
- After a Complete Power Loss. . . . . . . Manual, 2-300 seconds adj
Output Contact Rating
- SPDT . . . . . . . . . . . . . . . . . . . . . . . . 480 VA @ 240
VAC Pilot Duty
- . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 10A @240
VAC General Purpose
Temperature Range . . . . . -40° to 70°C (-40° to 158°F)
Trip & Reset Accuracy . . . . . ±1%
Repeatability . . . . . ±0.5%
Power Consumption . . . . . . . . . . . . . 5 Watts (Max.)
Relative Humidity . . . . . . 95%, non-condensing
Transient Protection . . . . . . IEC 61000-4-5, ±4kV
Hi-Potential Test . . . . . . Meets UL508 (2x rated V+1000V for 1 minute)
Termination . . . . . . 0.25” male quick connect
Safety Marks
- UL Recognized. . . . . . . . . . . UL508 (File #E68520)
Weight . . . . . . . . . . . . . . . . . . . . . . . . 8 oz.
Mounting Method
. . . . . . . . . . . 1/4” socket head cap screw (customer supplied)
*Note: 50Hz will increase all delay timers by 20%. CE Pending
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