Home > Electrical Equipment & Supplies > Power Supplies > Inverters & Converters > S300A/E-7-4T 220V 380V 50HZ to 60HZ VFD Frequency Inverter Converter

S300A/E-7-4T 220V 380V 50HZ to 60HZ VFD Frequency Inverter Converter

External brake resistor is a necessity for all VFDs. It can be selected according to brake energy and brake torque.

Product Description

Brake unit and Brake resistor
1. Brake unit is built-in for VFD power equal and under 22kw, and is not included(optional) for VFD over 22kw.
2. External brake resistor is a necessity for all VFDs. It can be selected according to brake energy and brake torque. In below form there is the minimum resistance and power value to match different model. In actual use, the brake power value must be higher than that in the form, and the selection of the braking resistor power based on braking energy.
Model Brake Unit Minimum Resistance (Ω) Minimum Power(kw)  
S300A/E-7-4T 132K Optional to built-in 2.6 147.84*k K refers to brake frequency. K differs in industry and below can be taken as reference.

Elevator: K=10%-15%
Oil pumping unit: k=10%-20%
Centrifugal machine: k=5%-20%
Unwinder and rewinder machine: k=50%-60%
Crane: k=20%-40%
Occasionally brake load: k=5%-10%

 

Reactor Selection Instruction
1. Input AC/DC reactor is a necessity for 160kw or higher power VFD; and  is optional for power equal and under 132kw VFD.
2. Output  AC reactor is optional, can be decided accroding to final application places.
Model Input AC Reactor Model (2%) Output AC Reactor Model DC Reactor Model
S300A/E-7-4T 132K SAL-INPUT -1320 SAL-OUTPUT -1320 SDL-PN -1320

 

Ratings
Size Model Input Rated Voltage(V) Input Rated Current(A) Output Rated Current(A) Adaptable Motor(kw) Adaptable Motor(hp)
7 S300A/E-7-4T 132K 400 256 253 132 200

 

Micctech VFD power various from 5.5kw-160kw, has 15 styles in total and they share 6 sizes.
Size Model A(mm) B(mm) B1(mm) H1(mm) W(mm) D(mm) Installation Hole Diameter (mm)
7 S300A/E-7-4T 132K 200 1008 12.5 1003 310 308 11

 

 

 

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