The Flyline Modular Digital Over & Under Voltage Protector (FDP) is an advanced safety device designed to protect all your valuable home and office appliances — including CCTV systems, security alarms, laboratory instruments, and computers — from voltage fluctuations and lightning surges caused by natural calamities.
Built with cutting-edge German technology, the FDP ensures reliable protection against power irregularities that can otherwise damage sensitive electronic equipment. It provides automatic protection from overvoltage, undervoltage, and voltage cutoffs, with adjustable time delay settings and a self-healing function for long-term performance.
Unlike conventional protection devices that fail when earthing is improper or require manual resetting after a power interruption, the Flyline FDP offers fully automatic switching — it turns off and on by itself as needed. Even when you are away, FDP continuously monitors and safeguards your electrical systems, making it the ideal choice for NRI homes and unattended properties.
The FDP actively responds to the following electrical faults:
Phase sequence disorder
Phase unbalance
Loss of neutral line
Breakage of any line or phase
Overvoltage or undervoltage in any phase line
Compact and easy to install in the main distribution board, the Flyline FDP provides complete and intelligent protection for your entire electrical network.
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Specification:
| Model | FDP-1 |
| Number of Poled | 1 P |
| Rated Voltage (V)AC | 220 |
| Rated Current (A) | 32 | 63 |
| Loading Power (KVA) | 7 KVA | 14 KVA |
| Over-Voltage Cut-Off Value(VAC) | 230-270 adjustable ( 400 V short time) |
| Time Delay(s) | 0.01 seconds |
| Under-Voltage Cut-Off Value(VAC) | 120-210 adjustable |
| Time Delay(s) | 0.1 seconds |
| Dimensions(MM) | 84*52*75(L*W*H) |
| Self Power Consumption(W) | ≤ 3w |
| Ambient Temperature (C ) | -20-+40 |
1.This First button : For displaying the voltage (3 phase or 1 phase )Press the button for 10s to switch to single phase voltage indicating.
2. This second button : Delay time setting. Press the button for 10s until the decimal point flashes. Then press button "+"or "-" to set the delay time(5-600s)
3. This third button : Under voltage value setting. Press the button for 10s then the decimal point of digital panel flashes. Then press “ + ” or “ - ”to set the voltage (120-210V)
4. This fifth button : Over voltage value setting. Press the button for 10s, then the decimal point on digital panel will flash. The press “ + ” or “ – ”to set the voltage ( 230-270V)
| Model | FDP-3 |
| Number of Poled | 3 P |
| Rated Voltage (V)AC | 220 |
| Rated Current (A) | 32 | 63 |
| Loading Power (KVA) | 20 KVA | 40 KVA |
| Over-Voltage Cut-Off Value(VAC) | 230-270 adjustable |
| Time Delay(s) | 0.01 seconds |
| Under-Voltage Cut-Off Value(VAC) | 120-210 adjustable |
| Time Delay(s) | 0.1 seconds |
| Dimensions(MM) | 85*90*75(L*W*H) |
| Self Power Consumption(W) | ≤ 3W |
| Ambient Temperature (C ) | -20-+40 |
Relative humidity:≤85%.
Latitude:≤2000m.
No corrosive gas or conductive dust.
Instalation :Vertical mounting on DIN rail
Precautions:line of neutral of this product does not have function of isolating.Please cut offm isolating switch before operation
1.This button : for displaying the voltage (3 phase or 1 phase )Press the button for 10s to switch to single phase voltage indicating.
2. This second button : Delay time setting.Press the button for 10s until the decimal point flashes.Then press button "+"or "-" to set the delay time(5-600s)
3. This third button : Under voltage value setting. Press the button for 10s then the decimal point of digital panel flashes. Then press “ + ” or “ - ”to set the voltage (120-210V)
4. This fifth button : : over voltage value setting. Press the button for 10s, then the decimal point on digital panel will flash. The press “ + ” or “ – ”to set the voltage ( 230-270V)
Press the forth button ,the last time fault voltage will be displayed in 2 seconds .The lights indicate the fault phase
1. Wire Connection Error
Flashing letters CBA on the board indicates phase sequence error .Change connecting sequence of the live lines to solve this problem.(if OPO appears first and then CBA flashes. Please check if the neutral line and live line where reversely connected.)
2. Phase Loss
OPO :Lack of neutral line. ►:OPA : Lack of Phase A live line. ►:OPB Lack of Phase B live line. ►:OPC Lack of Phase C live line
The display board is not lighted:lack of 2 or 3 phases of live lines
3. Phase Imbalance: H-L appears when voltage difference between any two phases is over 35%(>77V)
4. Over Or Under Voltage Protection :H and L on the left , center and right of the indicating board stand for over voltage and under voltage of phase A ,B and C respectively.
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