Images are representations only.
MCI 25B CI-Tronic Soft Start Motor Controller
Brand: DanfossMCI 25B motor controller with brake is designed for soft starting and braking of 3 phase ac motors.
The digital controlled soft starter features accurate settings and several monitoring functions. Acceleration time and initial torque are along with the braking torque easily adjusted.
During braking the MCI 25B will apply ac/dc current to all the windings of the motor, thus providing a powerful brake function.
The automatic stop detection ensures a safe operation. For positioning applications the unique slow speed function can be applied.
The MCI 25B controller is typically applied on demanding braking applications such as saws, cranes, automatic doors, etc.
Features- Adjustable acceleration time, 0 to 10 seconds
- Initial torque adjustable from 0 to 85%, with or without kick start (break-away)
- Adjustable DC injection brake, 0-50 A DC
- Fast acting brake mode with automatic motor field reduction
- Automatic stop detection
- Universal control voltage 24-480 V AC/DC
- Slow speed function, 7.5% or 10% of nom. speed
- SCR aux. contacts for external control of by-pass, I-O and mechanical brake
- Automatic detection of missing phase(s)
- Automatic adaptation to 50/60 Hz
- Unlimited start and stop per hour
- IP 20 protection
- Compact DIN rail mountable design
- EN 60947-4-2
- CE, C-tick
Specifications
Brand
Ambient Temperature Range
- -5° to 40° C (23° to 104° F)
- 60° C (140° F) - Max.
Approvals & Certifications
- C-Tick
- CE Marked According to EN 60947-4-2
- EMC Directive: EN 50082-1 & EN 50082-2
Current
- 1 mA - Max.
- Brake Current: Adjustable from 0-50 A
- Leakage Current, Max.
- Minimum Operational Current: 50 mA
- Operational Current, Max.
Dissipation
- Maximum
Duty Cycle
- 25 A with 65 % Duty Cycle, Max.
- 25 A with 80 % Duty Cycle, Max.
Electrical Rating
- Asynchronous Motors: 25 A AC-53a: 8-3: 100-3,000
- Control Current/Power, Max.
- SCR Auxillary Contacts, Voltage/Current, Max.
- Slip Ring Motors: 25 A AC-52a: 4-13: 100-3,000
Enclosure, Body Material
- Self Extinguishing Polyphenylene Oxide UL 94V1
Environmental Protection
- IP20
- IP23
Frequency
- 50/60 Hz
Function
- Slow Speed Function, 7.5 % or 10 % of Nominal Speed
Indication
- LED for Status & Error Indication
Input
- 24-480 Vac/dc
Materials of Construction
- Aluminum Black Anodized - Heatsink
- Electro-Plated Steel - Base
Mounting
- Compact DIN Rail Mountable Design
- Horizontal
- Vertical at ± 30° C (54° F)
Output
- 0.7-7.5 KW (1-10 hp) - Motor Size At: 208-240 Vac
- 1-11 KW (1.5-15 HP) - Motor Size At: 380-480 Vac
- 24-480 Vac
- Maximum
Power
- 0.5 A - SCR Auxillary Contacts for Current
- 2 VA
- Continuous Operation: 15-20 A
Response Time
- Maximum
Storage Temperature
- -20° to 80° C (-4° to 176° F)
Supply Voltage
- 28-480 Vac - SCR Auxillary Contacts for Voltage
- Drop-Out Voltage: 5 Vac/dc
- Pick-Up Voltage: 20.4 Vac/dc
- Rated Impulse Withstand Voltage: 4 kV
- Rated Insulation Voltage: 660 Vac
- Universal Control Voltage: 24-480 Vac/dc
