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Analog Automatic Voltage Switchers

AFAVietNam > Products > Analog Automatic Voltage Switchers

Analog Automatic Voltage Switchers

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Product fast facts:

  • Display: Output Voltage, Current Load on Indicator Display. LED Light for Working Status
  • Trademark: RULER
  • Manufacturer: Research and Industrial Manufacturing Joint Stock Company
  • Origin: Vietnam
  • Materials: Static painted steel sheet, 100% copper wire, 4 year warranty

Product Overview

Ruler Analog AVS is made from high class materials: American Isotropic silicon steel, 100% of Korean copper wire. Advanced coil processing technology increases productivity for the engine and reduces wastes of electrical energy. Intelligent micro control system is fully integrated outstanding protective function.

Compound charcoal brush system increases contact level and flexibility to help Ruler AVS accept huge load softly and durably work.

Product features

  • Automatic voltage stabilization
    • Automatic overload protection by Aptomat
    • Automatically cut off the when the grid power is too high, over the machine’s voltage stabilization ability
    • Automatically turn power back on when the problem is fixed
    • The carbon brush automatically back to a safe location, avoid electric shock
  • High stability and accuracy: A specially designed control circuit allows the output voltage to be more stable than other automatic voltage stabilizers in the market (same type).
  • Smart Protection Feature: Voltage controller is integrated, the machine only energize after output current is stable (after 10s). When input voltage is higher beyond the machine’s stabilizing ability (more than 280V), the machine shall automatically cut off to protect electrical devices, when input voltage decrease at permitted level, the machine automatically turn on again.
  • Safe Start: When switching, Auto-reset system will ensure the machine start at safest mode. Then the machine will work to reach 220V before energize to protect load from voltage shock in any boot case, especially the voltage sensitive load.
  • Over current protection: The machine is over current protected by Aptomat

Product Specifications

For 1-phase AVS

Type 90V-250V  50V-250V 
Wave Sine
Frequency 45Hz – 62Hz
Capacity 1KVA to 50KVA 1KVA to 50KVA
Input Voltage 90V to 250V 50V to 250V
Output Voltage 110V ± 2%; 220V ± 2%
Display Output Voltage, Current Load on Indicator Display. LED Light for Working Status
Overcurrent Protection Aptomat
Overvoltage Protection Automatically cut off against output voltage of Uphase > 245V, automatically reset power when breakdown is trouble-shooted
Response time against 10% Input voltage deviation 0.4 sec ÷ 1 sec
Control system Servo Motor
Transformer type Toroidal Transformer
Insulation resistance > 3MΩ
Dielectric strength Tested at AC 1500V for 1 minute
Ambient Temperature 0oC ÷ +40oC
Efficiency > 95%
Machine’s cover Static painted steel sheet

For 3 phase AVS

Type 330V-430V  300V-430V 260V-430V  160V-430V 
Wave Sine
Frequency 45Hz – 62Hz
Capacity 10KVA to 1500KVA 10KVA to 1500KVA 6KVA to 500KVA 6KVA to 100KVA
Input Voltage 330V to 430V 330V to 430V 260V to 430V 160V to 430V
Output Voltage 380V ± 2% 220V ± 2%; 380V ±2%
Display Output Voltage, Current Load on Indicator Display. LED Light for Working Status
Overcurrent Protection Aptomat
Overvoltage Protection Automatically cut off against output voltage of Uphase > 245V, automatically reset power when breakdown is trouble-shooted
Response time against 10% Input voltage deviation 0.4 sec ÷ 1 sec
Control system Servo Motor
Transformer type Toroidal Transformer
Insulation resistance > 3MΩ
Dielectric strength Tested at AC 2000V for 1 minute
Ambient Temperature 0oC ÷ +40oC
Efficiency > 95%
Machine’s cover Static painted steel sheet

Product dimensions

Capacity-Voltage Range (Single Phase) Weight (Kg)  Dimension (mm)  Capacity-Voltage Range (Single Phases) Weight (Kg)  Dimension (mm) 
D  W  H  D  W  H 
1KVA 90V-250V   7.82  290  195  245  6KVA 260V-430V 42.60  535  365  580 
1.5KVA 90V-250V 10.20  290  195  245  6KVA 160V-430V 42.60  535  365  580 
1.5KVA 50V-250V 10.40  290  195  245  10KVA 260V-430V 58.40  470  375  940 
2KVA 90V-250V 11.60  340  220  300  10KVA 160V-430V 64.70  470  375  940 
2KVA-50V-250V 12.40  340  220  300  15KVA 260V-430V 66.90  470  375  940 
3KVA-90V-250V 15.60  370  230  380  15KVA 160V-430V 80.10  470  375  940 
3KVA-50V-250V 16.10  370  230  380  20KVA 260V-430V 89.20  540  440  1,080 
5KVA-90V-250V 24.02  385  260  455  20KVA 160V-430V 117.20  540  440  1,080 
5KVA-50V-250V 26.02  385  260  455  25KVA 260V-430V 89.20  540  440  1,100 
7,5KVA-90V-250V 31.50  440  275  475  25KVA 160V-430V 117.20  540  440  1,100 
7,5KVA 50V-250V 33.40  440  275  475  30KVA 260V-430V 103.20  540  440  1,080 
10KVA-90V-250V 37.70  475  325  485  30KVA 160V-430V 127.20  540  440  1,080 
10KVA-50V-250V 39.70  475  325  485  45KVA 260V-430V 149.90  580  480  1,200 
15KVA-90V-250V 61.60  535  365  580  45KVA 160V-430V 188.40  580  480  1,200 
15KVA-50V-250V 61.60  535  365  580  60KVA 260V-430V 245.00  780  620  1,530 
20KVA-90V-250V 88.90  580  430  690  60KVA 160V-430V 305.00  780  620  1,530 
20KVA-50V-250V 94.90  580  430  690  75KVA 260V-430V 335.40  780  670  1,750 
30KVA-90V-250V 140.90  550  520  900  75KVA 160V-430V 405.40  780  670  1,750 
30KVA-50V-250V 140.90  550  520  900  100KVA 260V-430V 335.40  780  670  1,750 
          100KVA 160V-430V 405.40  780  670  1,750 

User Manual

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