Fasealert-3 Digital: Three Phase Voltage Monitor Relay
Features
- Prevents damage to engines and equipment.
- Used in motors ranging from 1 to 300 H.P.
- Easy to install.
- Manual or automatic reset.
- LCD display shows 3 line voltages, faults, delays, max/min voltages, and settings menu.
- Output for recording voltages and faults to view on a computer.
- Certified by UL de México SA de CV.
Description
The Fasealert F3D is a highly reliable digital phase fault relay with state-of-the-art technology that protects three-phase motors and equipment of any capacity against high and low voltage, phase failure, voltage imbalances, and reversed sequence.
The LCD screen indicates the 3 voltages, faults, maximum/minimum voltage memory, and the last fault memory.
Allows adjustment of high/low voltage, imbalance, connection/disconnection delays, and manual or automatic reset.
The F3D protects by disconnecting the contactor coil and turning off the motor or equipment when it detects any voltage faults. It has an internal contact that opens or closes according to voltage conditions, and an indicator LED lights up when the contact is closed.
The disconnection delay prevents disconnection due to transient faults. It also has a connection delay that waits for some time before reconnecting when voltages are normal. This equipment has a connection for the DL-100 data logger that stores three-phase power supply voltages and faults in memory. This data is fed to a computer via USB for easy visualization of voltages and faults using the Nassar Data View software supplied with the equipment. The information stored in memory can be viewed from any computer to analyze how voltages behaved, and the provided memory has the capacity to store information for a full year.
Optional Equipment
- Front-mounting adapter plate for cabinets
- Three-phase voltage recorder with DL-100 graphing software
| Model | Rated voltage | Maximum voltage | Low voltage setting | High voltage setting |
| F3D-220 | 220 V | 270 V | 180-220 V | 230-270 V |
| F3D-440 | 380/440 V | 540 V | 320-440 V | 380-540V |
Frequency: 50/60 Hz
Disconnect Delay: Adjustable 0-10s.
Connect Delay: Adjustable 0-10 min.
Reset: Manual or automatic.
Undervoltage Protection: Adjustable 3-10%.
Contact: 1PDT, 10 Amp. @ 220 VAC, 3 Amp. @ 440 VAC, 100,000 operations.
| Model | Estándar F3 | Plus F3P | Digital F3D |
| Protection against low voltage | ✓ | ✓ | ✓ |
| Phase fault protection | ✓ | ✓ | ✓ |
| Protection against imbalance | ✓ | ✓ | ✓ |
| Protection by reverse rotation | ✓ | ✓ | ✓ |
| Indication of each failure | ✓ | ✓ | ✓ |
| High voltage protection | ✓ | ✓ | |
| Adjustable delays | ✓ | ✓ | |
| Adjustment of imbalance | ✓ | ||
| LCD illuminated screen | ✓ | ||
| Voltage indications | ✓ | ||
| V Max. and V. Min. Memory | ✓ | ||
| Fault memory | ✓ | ||
| Data logger | ✓ | ||
| Accuracy of 25º C | 2% | 2% | 1.5% |
| Warranty | 3 year | 3 year | 5 year |
