202/202-RP
Series -
3-Phase Voltage/Phase Monitor from Littelfuse
from Sords Electric
For a quote, please Contact us HERE!
The 202 series is a 3-phase, auto-ranging, dual-range voltage monitor
that protects 190-600VAC, 50/60Hz motors regardless of size. The 202-RP
monitors the phase rotation of 3-phase systems and trips on reverse
phase only. Critical applications include fan motors, scroll
compressors, grinders, conveyor systems, elevators and escalators. Both
products provide a user selectable nominal voltage set point and some
models automatically select between the 200V and 400V range.This unique microcontroller-based voltage and phase-sensing device
constantly monitors the 3-phase voltages to detect harmful power line
conditions. When a harmful condition is detected, the 202 series’s
output relay is deactivated after a specified trip delay. The output
relay reactivates after power line conditions return to acceptable
levels. The 202 series includes advanced single LED diagnostics. Five
different light patterns distinguish between faults and normal
conditions. The 202-RP monitors the phase rotation of 3-phase systems
and trips on reverse phase only. Critical applications include fan
motors, scroll compressors, grinders, conveyor systems, elevators and
escalators. The status light turns green and the relay is activated when
rotation is correct.
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Littelfuse 202/202-RP phase/voltage relays
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Features & Benefits
Compact, quick mounting design >> 1-screw mounting saves time and space. Small footprint ideal for assembly into panels.
Proprietary microcontroller based circuitry>>Constant monitoring of single-phase, low voltage, high voltage, voltage unbalance, phase reversal, harmful power line conditions.
Auto-sensing wide voltage range (202 & 202-RP) >> Automatically senses system voltage between 90 - 480VAC. Saves setup time.
Advanced LED diagnostics >> Quick visual indicator for cause of trip. LED indications include: normal operation, restart delay, reverse-phase trip, fault
Adjustable trip delay (202) >> Prevent nuisance tripping due to rapidly fluctuating power line conditions.
Models:
202 190-480 VAC Trips on low/high voltage and voltage unbalance.
202-RP 190-480 VAC Trips on reverse-phase only
202-575-RP 475-600 VAC Trips on reverse-phase only
Specifications
Frequency 50 */ 60 Hz
Functional Characteristics
Phase Sequence >> ABC
Low Voltage (% of setpoint) >>Trip 90% & Reset 93%
High Voltage (% of setpoint)
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 Characteristics
Output Contact Rating (SPDT)
Pilot Duty >> 480VA @ 24 0VAC
General Purpose10A @ 240VAC
General Characteristics
Temperature Range >> -40° to 70°C (-40° to 158°F)
Trip & Reset Accuracy >> ±1%
Repeatability ±0.5%
Maximum Input Power >> 5 W
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)
Dimensions >> H 63.5 mm (2.5”); W 63.5 mm (2.5”); D 35.56 mm (1.4”)
Weight >> 0.5 lb. (8 oz., 226.8 g)
Mounting Method >> 1/4” socket head cap screw(customer supplied)
*Note: 50Hz will increase all delay timers by 20%. CE Pending
For a quote, please Contact us HERE!
Sords Electric
216-765-4230
Littelfuse 202...Littelfuse 202...Littelfuse 202...Littelfuse 202...
