5-3
Protective Functions
Model 3G3HV- A2037 A2055 A2075 A2110 A2150 B2185 B2220 B2300 B2370 B2450 B2550 B2750
Motor
protection
Protection by electronic thermal.
Instantaneous overcurrent
protection
Stops at approx. 200% of rated output cur
-
rent.
Stops at approx. 180% of rated output current.
Overload protection
Stops in one minute at approx. 150% of
rated output current.
Stops in one minute at approx. 120% of rated output current.
Overvoltage protection Stops when main-circuit DC voltage is approx. 410 V
.
Undervoltage protection
Stops when main-circuit DC voltage is approx. 190 V
.
Momentary power interrup
-
tion compensation (selec
-
tion)
Stops at 15 ms or more. By means of an operating mode selection, operation can be continued if recov
-
ery occurs within 2 seconds.
Cooling fin overheating
Protection by thermistor
.
Grounding protection
Protection by electronic circuits.
Charge indicator (internal
LED)
Lit when rated DC voltage is approx. 50 V or more.
Environment
Model 3G3HV- A2037 A2055 A2075 A2110 A2150 B2185 B2220 B2300 B2370 B2450 B2550 B2750
Location
Indoors (no corrosive gas, oil spray
, metallic dust, etc.)
Ambient operating tempera
-
ture
–10 to 45
°
C (NEMA1 type: –10 to 40
°C)
–10 to 45
°C (Open chassis type)
Ambient operating humidity
90% RH (with no condensation)
Storage temperature
–20 to 60
°C
Altitude
1,000 m max.
Insulation resistance
5 M
Ω
min. (Do not carry out the insulation resistance test or withstand voltage test.)
V
ibration withstand
V
ibration frequency less than 20 Hz, 9.8 m/s
2
, 1G max.; 20 to 50 Hz, 2 m/s
2
, 0.2G max
Protective structure
Both enclosed NEMA1 type and panel
open chassis type: IP10
Open chassis type: IP00
General Specifications for 400-V Inverter
Model 3G3HV- A4037 A4055 A4075 A4110 A4150 B4185 B4220 B4300 B4370 B4450 B4550 B4750 B411K B416K B418K B422K B430K
Maximum
applicable
motor capacity (kW)
3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 110 160 185 220 300
Output
char-
acter-
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