50 hp (37 kW) VFD, 3 Phase 220V, 400V, 460V

$1,781.14

Discounted 50 hp (37 kW) VFD, three phase 220V, 400V, 460V energy saving variable frequency drive for motor speed controls, strong overload capacity, brand new direct sale by manufacturer with fast delivery.

SKU: GK3000-4T0370G

Input Voltage (Three Phase) ±15%

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Delivery date: 6-12 days

Overview

50 hp (37 kW) variable frequency drive for energy savings, three phase 220V, 400V, 460V for selection, RS485 enabled.

Specification:

Basics	Model	GK3000-4T0370G
	Capacity	50 hp (37 kW)
	Shipping weight	30 kg
	Dimension	500296276 mm
I/O Feature	Rated current	75 A
	Input voltage	3 phase 220V /400V /460V AC ±15% (Optional)
	Input frequency	50 Hz / 60 Hz
	Output voltage	3 phase AC 0~input voltage
	Output frequency	0.00~400.00Hz
	Over load capacity	150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature	Control mode	V/F control; Sensorless vector control;
	Communication	RS485
	Speed regulation	1:100
	Start torque	150% of rating torque at 1 Hz
	Speed control accuracy	≤±0.5% of rating synchronous speed
	Frequency precision	Digital setting: max frequency x± 0.01%; Analog setting: max frequency x± 0.2%
	Frequency resolution	Analog setting: 0.1% of max frequency; Digital setting: 0.01Hz
	Torque boost	Automatic torque boost, manual torque boost 0.1%~30.0%
	Interior PID controller	Be convenient to make closed-loop system
	Automatic energy save running	Optimize V/F curve automatically based on the load to realize power save running
	Automatic voltage regulation (AVR)	Can keep constant output voltage when power source voltage varies.
	Automatic current limiting	Limit running current automatically to avoid frequent over-current which will cause trip
Environment	Enclosure rating	IP 20
	Temperature	–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
	Humidity	5%-95%, without condensation
	Altitude	≤1000m; VFD will be derated if above 1000m
	Impingement and oscillation	Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
	Store environment	–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

Tips: Variable frequency drive service life extension methods

Do not install the VFD on vibration device, because the main circuit connecting screws will be easy to loose and causing damage.
Wiring problem: The VFD input is best to be connected to an air switch to control the current value and to prevent the occurrence of short circuit. The "N" end must not be grounded. Control line should not be too long. Because this makes the control board is easily disturbed by electromagnetic interference and occur malfunction, which will lead to control board damage. The control line more than 2 meters is best to use shielded wire. Do not install a large current and frequent operating contactor next to the VFD, because it has strong disturbance and often causing malfunction (show all kinds of faults).
Frequent emergency stop VFD is best not to rely on the built-in brake device, but to install additional brake resistance or mechanical brake, or the VFD will often backlash impacted by the motor counter electromotive force, the failure rate will be greatly increased.
If the VFD is often running at low speed below 15HZ, the motor should be attached to the cooling fan.
Dust and moisture are the most deadly killers of the variable frequency drive. It is best to install the VFD in the air-conditioned room, or installed in the cabinet with strainer mesh, and to regularly clean the dust of circuit board and the heat sink. If a VFD is not in used for a long time, use a hair dryer to blow the circuit board before restarting.

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