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Danfoss MCD500 — Advanced Soft Starters for Demanding Applications
The Danfoss MCD500 series is a range of industrial soft starters engineered for demanding and mission-critical applications. The MCD500 provides full control over motor starting and stopping for motors from 7.5 to 800 kW with rated currents from 21 to 1600 A. The series supports two supply voltage classes: 200-440 V and 380-690 V, making it a versatile solution for diverse industrial power networks.
Unlike the basic Danfoss MCD200 series, the MCD500 features advanced capabilities: multiple start profiles (adaptive acceleration torque, voltage ramp, current-limited start), built-in bypass contactor in compact models, cascade control for up to 4 pumps, industrial network interfaces (Modbus RTU, Profibus DP, DeviceNet), and comprehensive motor protection.
Danfoss MCD500 Product Range
The MCD500 catalogue includes 92 models, spanning from compact soft starters for small motors to high-power units for heavy industrial machinery. Below are the key frame sizes (200-440 V voltage class):
| Part Number | Power Rating | Rated Current | Supply Voltage |
|---|---|---|---|
| MCD5-0021B-T5 | 7.5 kW | 21 A | 200-440 V |
| MCD5-0053B-T5 | 22 kW | 53 A | 200-440 V |
| MCD5-0105B-T5 | 55 kW | 105 A | 200-440 V |
| MCD5-0245C-T5 | 132 kW | 245 A | 200-440 V |
| MCD5-0927C-T5 | 500 kW | 927 A | 200-440 V |
| MCD5-1600C-T5 | 800 kW | 1600 A | 200-440 V |
Every model is available in two control voltage variants: CV1 (24 V DC) and CV2 (110-440 V AC), as well as in the T7 version for 380-690 V networks. The complete catalogue of 92 items is available on this page.
Key Advantages of the MCD500 Series
The MCD500 series combines reliability with advanced functionality:
- Adaptive start profiles — choose between voltage ramp, current-limited start, and adaptive acceleration torque for different load types.
- Cascade pump control — built-in rotation of up to 4 pumps with automatic alternation, ideal for water supply and HVAC systems.
- Communication interfaces — Modbus RTU, Profibus DP, DeviceNet, and Ethernet support for seamless automation integration.
- Comprehensive motor protection — overload, phase loss, current imbalance, overheating (via PTC/PT100 thermistors), and locked rotor protection.
- Energy saving — voltage optimisation to reduce no-load losses in lightly loaded motors.
- Built-in bypass — low-power models include an integrated bypass contactor to minimise heat dissipation during operation.
How to Choose a Danfoss MCD500
To select the right MCD500 soft starter, determine the following:
- Supply voltage — T5 for 200-440 V networks (standard 380 V) or T7 for 380-690 V networks (industrial high-voltage systems).
- Motor power — from 7.5 to 800 kW. The MCD500 part number indicates rated current after the hyphen (e.g., MCD5-0053B = 53 A).
- Control voltage — CV1 (24 V DC) for low-voltage control systems or CV2 (110-440 V AC) for direct connection to the control network.
- Application type — for pumps choose a model with cascade control, for compressors — one with current-limited start profile.
Other Soft Starter Series
In addition to the MCD500, we offer other soft starter series:
- Danfoss MCD200 — cost-effective series for standard applications (18-200 A)
- Schneider Electric ATS48 — torque-controlled soft starters for heavy-duty starts
- Schneider Electric ATS22 — compact soft starters for pumps and fans
Warranty and Support
All Danfoss MCD500 soft starters purchased from us come with an official warranty. Our engineers can assist with model selection, start parameter configuration, and commissioning. Contact us via the enquiry form or by phone for expert consultation.
