3
C
ODING
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
VRTMT50 32
50
70
180
VRTMT60 41
60
80
250
!
