Product Description
Description: Phase Monitor Relay • Type: Reversal, Loss, Unbalance, Voltage • Coil Voltage: 190-480 VAC • Contact Configuration : 1C SPDT • Mounting: Base • Contact Current: 10 Amps • ADJ:: High Volt.detect
| Product Information | | Resources |
| Manufacturer | Littelfuse - Symcom | | Product Category | Monitors | | Product Sub Category | Voltage Monitor Relays | | Series | 102A Series |
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Product Attribute
| Attribute Value
|
| Input Voltage (V) | 190 - 480 Vac |
| Maximum Input Power | 5 |
| Input AC Line Frequency (Hz) | 50 / 60 (50 will increase all delay timers by 20%) |
| Output Form | SPDT - 1 Form C |
| Output Load Rating (VA) | Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac |
| Restart Delay Range | After a Fault: 2 s; After a Complete Power Loss: 2 s |
| Trip Delay Range | Low/High Voltage: 4 s; Unbalance/Phase faults: 2 s |
| Trip Point Accuracy (%) | ±1% |
| Overvoltage Trip Voltage (%) | 1.1 |
| Overvoltage Reset Voltage (%) | 1.07 |
| Undervoltage Trip Voltage | 0.9 |
| Undervoltage Reset Voltage (%) | 0.93 |
| Voltage Unbalance Trip Point (%) | 0.06 |
| Voltage Unbalance Reset (%) | 0.045 |
| Type of Detection | High Voltage detection |
| Termination Type | Torque: 7 in-lbs; Wire Size: 12 - 18 AWG |
| 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 H x 5.27 W x 2.95 D in. (74.4 x 133.9 x 74.9 mm) |
| 102A Series – Three-Phase Voltage/Phase Monitor Series |
| Series Description: The 102A series is a three-phase, auto-ranging, dual-range voltage monitor that protects 190–600 V ac, 50*/60 Hz motors regardless of size. This monitor provides a user-selectable nominal voltage setpoint and will automatically select between the 200 V and 400 V range. A unique microcontroller-based voltage and phase-sensing circuit constantly monitors the three-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 102A monitor includes advanced, single LED diagnostics with five different light patterns that distinguish between faults and normal conditions. LED indications include normal operation, power-up restart delay, reverse-phase trip, unbalance/single-phase trip, and high- or low-voltage trip. |
| Series Applications: Fan motors, Air conditioners, Compressors, Heat, well, and sump pumps, Small conveyer motors |
- Proprietary microcontroller-based circuitry : Constant monitoring of single-phase, low-voltage, high-voltage (102A-9), voltage unbalance, phase reversal, harmful power line conditions
- Auto-sensing wide voltage range: Automatically senses system voltage between 190–480 V ac. Saves setup time
- Advanced LED diagnostics: Quick visual indicator for cause of trip
- Adjustable trip delay (102A2): Prevents nuisance tripping due to rapidly fluctuating power line conditions
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