Data sheet
CI-tronic™ Soft starters
Type MCI 12CH/15CH/25CH
The MCI CH soft starters are designed for
starting/stopping of hermetic compressors for
residential pumps, refrigeration and A/C units.
The soft start ramp-up time is fixed to ensure
lubrication and optimal start current reduction.
Features • Control voltage 208-240 V AC
• Automatic detection of missing phases
• LED Status indication
• Automatic adaptation to 50/60 Hz
• Easy and quick installation
• Built in varistor protection
• IP 20 protection
• Compact modular design
• DIN rail mountable
• Ramp-up time max 0.2 s (factory set-up)
• EN 60947-4-2
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Data sheet | CI-tronic™soft starters, Type MCI 12CH/15CH/25CH
Technical data
Output specifications
Features MCI 12CH MCI 15CH MCI 25CH
Operational voltage V AC 380 – 415 380 – 415 380 – 415
Operational current (AC-58b) max. 12 A 15 A 25 A
Ramp up time (preset) max. 0.2 s 0.2 s 0.2 s
Leakage current max. 5 mA 5 mA 5 mA
Operational current min. 50 mA 50 mA 50 mA
Overload relay trip class Class 10 Class 10 Class 10
Semiconductor protection fusing
Type 1 1) co-ordination 35 A gL/gG 50 A gL/gG 63 A gL/gG
Type 2 2) co-ordination Pt (t=10 ms) 610 A2s 1800 A2s 6300 A2s
Rating index
AC-58b: Hermetic refrigerant compressor
motor with bypass )
1
) Type 1 co-ordination require that, under short-circuit conditions, the device shall cause no danger to persons or installation and may
not be suitable for further use without repair and replacement of parts
2
) Type 2 co-ordination require that, under short-circuit conditions, the device shall cause no danger to persons or installation and shall
be suitable for further use
3
) 12 A: AC-58b: 6-2:300 means max. load 6 x 12 A for 2 seconds: Min. 300 seconds between starts
12 A: AC-58b:
6-2:300
15 A: AC-58b:
6-2:360
25 A: AC-58b:
6-2:600
© Danfoss | DCS (az) | 2018.02
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Data sheet | CI-tronic™soft starters, Type MCI 12CH/15CH/25CH
Technical data
(continued)
Control circuit specifications
Control voltage range 208-240 V AC
Pick-up voltage (max.) 177 V AC
Drop-out voltage (min.) 50 V AC
Control current for no operation (max.) 1.5 mA AC
Control current / power (max.) 3 VA
Response time (max.) 100 ms
Fuse (max.) 10 A gL/gG
EMC immunity Tested acc. to Art. 9.3.5 EN 60947-4-2
Insulation
Rated insulation voltage Ui 660 V AC
Rated impulse withstand voltage Uimp 4 kV
Installation category III
Thermal specification
Cooling method Natural convection
Storage temperature range –20°C – 80°C
Ambient temperature –20°C – 40°C
Enclosure degree / pollution degree IP 20/ 3
Power dissipation, continuous duty (max.) 4-5 W
power dissipation, intermittent duty (max.) 4-5 W x duty cycle
Materials
Housing self extinguishing PC/ ABS
MCI CH soft starter selection
Type Max. load Amp I2t for fusing Code no.
MCI 12 CH 12 610 As 037N0095
MCI 15 CH 15 1800 As 037N0096
MCI 25 CH 25 6300 As 037N0097
Functional description Start
During ramp-up the controller will gradually
increase the voltage to the motor from the
present initial torque value until it reaches full
line voltage. The actual ramp time is digitally
calculated and will not be influeced by net
frequency or load varition.
LED status indication
LED
Ramp up Full on Line or
0.2 s load error
© Danfoss | DCS (az) | 2018.02
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Dimensions
Application examples When the control voltage is applied to A1-A2, the
soft starter will start the motor, according to the
fixed ramp-up time. When the control voltage is
switched OFF, the motor will switch OFF
instantaneously.
oss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
vided that such alterations can be made without subsequential changes being necessary eady agreed.
tive companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
© Danfoss | DCS (az) | 2018.02
DKRCC.PD.LB0.A2.02 | 4
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