Product Description
Description: SymCom MotorSaver 3-Phase Voltage Monitor, Model 460-L, 190-480V, Fixed Unbalance and Trip Delay, DIN Rail Mount
| Product Information | | Resources |
| Manufacturer | Littelfuse - Symcom | | Product Category | Monitors | | Product Sub Category | Voltage Monitor Relays | | Series | 460 SERIES |
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Product Attribute
| Attribute Value
|
| Input Voltage (V) | 190 - 480 Vac |
| Maximum Input Power | 6 |
| Input AC Line Frequency (Hz) | 50 / 60 (50 will increase all delay timers by 20%) |
| Output Form | Form C |
| Output Load Rating (VA) | Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac |
| Restart Delay Range | 1 - 500 s adjustable |
| Trip Delay Range | Under/Over and Unbalance Voltage: 1 - 30 s adjustable; single-Phase faults (>25%UB): 4 s fixed |
| 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 |
| Protection Class | IP20; NEMA 1 (finger safe) |
| Termination Type | Torque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal |
| Mounting Method | 35mm DIN rail or Surface Mount (#6 or #8 screws) |
| Operating Temperature | -20° to 70°C (-4° to 158°F) |
| Storage Temperature (F/C) | -40° to 80°C (-40° to 176°F) |
| Humidity | 10 - 95% non-condensing per IEC 68-2-3 |
| Dimensions | 3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm) |
| 460 SERIES - 3-Phase Voltage Monitor |
Series Description: The 460 is a 3-phase voltage monitor that protects 190-480VAC or 475-600V, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically senses line voltage.
This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions such as low, high, and unbalanced voltage, loss of any phase, and phase reversal. When a harmful condition is detected, the MotorSaver® output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time (restart delay). The trip and restart delays prevent nuisance tripping due to rapidly fluctuating power line conditions.
All 460 models feature adjustable 1-30 second trip delay, 1-500 second restart delay, 2-8% voltage unbalance trip point, and one form C contact except where noted below. |
- Auto-sensing wide voltage range: Automatically senses system voltage between 190 - 480VAC or 475-600VAC. Saves set-up time
- Adjustable trip & restart delay settings: Prevent nuisance tripping due to rapidly fluctuating power line conditions
- Microcontroller based circuitry: Improved accuracy and higher reliability
- Advanced LED diagnostics: Quick visual indicator for cause of trip and relay status
- Adjustable voltage unbalance trip setting: Provides reliable protection when regenerative voltage is present
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