3
CODING
Position 1 2 3 4 5 6 7
VRMT 12 C PT PL 55 XX (coding example)
Pos. 1 : Adjuster model
Pos. 2 : Nominal current 8 = 8A, 12 = 12A, 20 = 20A...
Pos. 3 : Power supply C= 230/400V∼ 50/60Hz
D= 440/460V∼ 50/60Hz (not for VRTMT8)
Pos. 4 : Type of probe/s PT = pressure and temperature
Pos. 5 : Container PL = plastic
Pos. 6 : Protection grade 55 = IP55
Pos. 7 : Variants/additions O = weekly clock, C = operable door , D = Oled dispaly
The data are related to operate at 400V~ 50Hz.
For 230V voltage supply or VRTMTXXD
models at 440-460V all current are the same.
*Max current refers to an enviroment
temperature of 50°C for a maximum time of 10
second every 5 minutes.
TECHNICAL CHARACTERISTICS
POWER SUPPLY 230/400V~ +10%/-15%, (440/460V~ on demand)
FREQUENCY 50-60Hz
MAX VOLTAGE POWER OUT >97% of power supply
OPERATING TEMP. -25°C/+50°C (-25°C with Oled display, -20°C with lcd display)
STORING TEMP. -40°C/+80°C
MAX TEMP.DISSIPATOR 75°C
PROTECTION GRADE IP55 self extinguishing plastic box (ball pressure test 85°C),pollution grade 3
ELECTRIC CLASSIFICATION Class II at the command imputs (insulation of 4kV between commands block and the
device supplied parts). Class I as regards the accessible parts.
PROTECTIONS Phase lost, inside overheating, sensor missing, external emergency (motor klixon)
WARNING : the regulator restores automatical.
Protection against power surges Class II
ACTION-DISCONNECTION Type 1(Y). Residual current motor < 15mA
SOFTWARE STRUCTURE Class A
ELECTRICAL CONNECTION Class Y
According to safety directive, reference standard EN60730-1. According to electromagnetic directive, reference
standard EN 61800-3. With refer to some typical applications, the VRTMT8-12-20 regulators are suitable for
residential and commercial ambients, while the VRTMT28-40-50-60 regulators are suitable for industrial ambients.
VRTMS regulators are designed to be installed inside a machine or a standard electrical cabinet and are therefore
considered a component. The installer must guarantee that the machine conforms to such regulations.
Power
max
(kVA)
Current
nominal
(A)
Current
max*
(A)
Power
dissipation
(W)
VRTMT 8 5,5 8 12 30
VRTMT12 8 12 23 60
VRTMT20 13 20 30 80
VRTMT28 19 28 50 120
VRTMT40 26 40 70 155
VRTMT
32 50 70 180
VRTMT
41 60 80 250
!
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