
16
Motor controllers Type MCI
Features
Individual adjustable acceleration and
deceleration times, 0.5-10 seconds
Initial torque adjustable from 0-85%
Breakaway function (Kick Start)
Universal control voltage: 24-480 V
a.c./d.c.
Automatic detection of missing phases
Automatic adaptation to 50/60 Hz
LED status indicator
Built-in varistor protection
Unlimited start/stop operations per hour
Optional Aux. contacts
IP 20 protection
Compact DIN rail mountable design
General
Type
MCI 3
MCI 15
MCI 25
Product description
The digital controlled MCI soft starter are designed for smooth control of 3 phase AC motors.
The MCI controller has individually adjustable acceleration and deceleration times. Thanks to the adjustable initial torque
and the unique breakaway (kick start) function the controller can be optimized for almost any application
Typical applications
AC motor application where a smooth start and/or stop is advantageous, such as conveyors, fans, pumps, compressors and high
inertia loads. MCI controllers are also obvious as replacement of star/delta starters
Design standard
IEC/EN 60947-4-2
Approvals
CE, UL, UL-C and CSA
Output specifications
Operational current AC 3,
AC 53a and AC 58a (motor load)
3 A
15 A
25 A
Motor size at:
208 - 230 V a.c.
0.1- 0.7 kW (0.18-1 HP)
0.1 - 4.0 kW (0.18-5 HP)
0.1 - 7.5 kW (0.18-10 HP)
400 - 480 V a.c.
0.1 - 1.5 kW (0.18-2 HP)
0.1 - 7.5 kW (0.18-10 HP)
0.1 - 11 kW (0.18-15 HP)
550 - 600 V a.c.
0.1 - 2.2 kW (0.18-3 HP)
0.1 - 7.5 kW (0.18-10 HP)
0.1 - 18kW (0.18-25 HP)
Leakage current
5 mA a.c. max.
Minimum operational current
50 mA
Overload current profile
X-Tx: 8-3
Overload relay trip class
Class 10
Semiconductor protection fusing
type 1 co-ordination
25 A gL/gG
50 A gL/gG
80 A gL/gG
type 2 co-ordination
72 A
2S
1800 A
2S
6300 A
2S
Thermal specifications
and environment
Power dissipation, continuous duty
4 W
2 W/A
Power dissipation, intermittent duty
4 W
2 W/A
× duty cycle
Ambient temperature range
-5 to 40 °C
Cooling method
Natural convection
Mounting
Vertical (see also general mounting instructions)
Max. ambient temperature
with limited current
60 °C, see derating for high temperatures in chart below
Storage temperature range
-20 to 80 °C
Protection degree/pollution degree
IP 20/3
Insulation specifications
Rated insulation voltage, Ui
660 V
Rated impulse withstand
voltage, Uimp
4 kV
Installation category
III
Control specifications
Control voltage (+/- 10%)
24 - 480 V a.c./d.c.
Drop-out voltage
5 V a.c./d.c.
Control current/power max.
15 mA/2 VA
Response time max.
70 ms
Ramp-up time
Adjustable 0 - 10 seconds, 0 - 20 seconds on version with aux. contact
Ramp-down time
Adjustable 0 - 10 seconds, 0 - 20 seconds on version with aux. contact
Initial torque
Adjustable 0 - 85% of nominal torque, with or without “kick start”
SCR auxialiary contacts (optinal)
Voltage/current max.
24-480 V a.c./0.5 A (AC-14, AC-15)
Fuse max.
10 A gL/gG, I
2t max 72 A2s
EMC immunity
Meets requirements of EN 50082-1 and EN 50082-2