Mach-1™ DC solid-state contactors (SSC’s) are built on a compact, versatile, and rugged platform designed for switching medium to high DC power up to 1500V, 500A.
Mach-1 SSCs utilize semiconductor designs with much higher power density, thus reducing the number of independent chips in an array. This significantly enhances reliability during both operation and construction. Furthermore, by implementing strict control protocols, Mach-1 SSCs deliver one of the most reliable switching operations.
Compared to conventional electromechanical DC contactors or power relays, solid state contactors can hot switch at much higher voltage, while improving lifespan by 100's of times.
Need bi-directional capabilities? Click here to view Mach-1 bi-directional models.
Need to switch above 500A and 1500V? Click here to view MAX-Q models.
Features & Selection Guide
- General Purpose Switch for High/Low Side
- No Moving Parts, Arc-Free, and Noise-Free
- Strict Control Protocols, Optimal Semiconductor Performance
- Derived from 12+ Iterations, Proven Field Operations
- 2.5kV Optically Isolated
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Made in Canada; UL semiconductors from the USA
| Load Type | Suggested Rated Voltage | Suggested Rated Current |
| General Resistive | ≥2x | ≥2x |
| Inductive Loads (coils, inductive heaters) |
≥3x (BEMF suppressed), ≥4x (BEMF unsuppressed) |
≥2.5x (BEMF suppressed), ≥4x (BEMF unsuppressed) |
| DC Motors (brushed or BLDC) |
≥3x (BEMF suppressed), ≥5x (BEMF unsuppressed) |
≥5x, or ≥1.5x peak inrush current |
| Capacitive Load | ≥3x | ≥3x, or ≥1.5x peak inrush current |
| Electromagnets | ≥5x | ≥10x |
Specifications & Downloads
For product recommendations, please complete the technical survey here.
M1DS-Series Datasheet
M1DS-Series Important Information
| Part# |
Rated Voltage | Rated Continuous Current | Surge/Inrush Current | Typical ON Resistance, or Voltage Drop |
Notes |
| M1D01-250A | 100 VDC | 250 A | 750 A (200ms) |
0.85 mOhm | High surge current option, suitable as DC motor starter |
| M1D01-500A-HP | 100 VDC | 500 A | 1,100 A (200ms) | 0.45 mOhm | High surge current option, suitable as DC motor starter |
| M1D01A-200A | 150 VDC | 200 A | 300 A (200ms) | 2 mOhm | |
| M1D01A-400A | 150 VDC | 400 A | 520 A (200ms) |
1 mOhm | |
| M1D06-120A | 600 VDC |
120A | 150 A (200ms) | 1.2V @100A |
Recommended for line voltages <500V |
| M1D06-200A | 600 VDC | 200 A |
275 A |
1.3V @200A |
Recommended for line voltages <500V |
| M1DS10-100A-LL | 1,000 VDC | 100 A | N/A | 1.25V @100A | Low Loss Option, Recommended for line voltages <900V |
| M1D10-150A | 1,000 VDC | 150 A |
N/A | 1.7V @100A |
Recommended for line voltages <900V |
| M1D10-250A | 1,000 VDC | 250 A |
N/A |
1.8V @200A |
Recommended for line voltages <900V |
| M1D15-150A-HV | 1,500 VDC | 150 A | N/A | 2.35V @100A |
High voltage option, recommended for line voltages <1,200V |
| M1DS20-60A-HV | 2,000 VDC | 60 A | N/A | ~30 mOhm | High voltage option, recommended for 1,500V PV, or line voltages <1,800V |
Sample Applications
- Mechanical contactor/solenoid retrofit
- DC motor starters
- Dynamic PWM braking
- PWM power control
- Divert load/dump load contactor
- Timer interrupt cathodic protection
- Battery management systems
- Instantaneous transient protection
- Battery charge/discharge
- Load test
- Scientific research
FAQ
For General FAQ, please visit: Solid State Contactor FAQ
Why does the 'Standard Model' only support PWM of up to 10Hz?
In typical applications where solid-state contactors are used to retrofit mechanical DC contactors, high switching frequency is not a priority. Thus, to maximize reliability, we have implemented multiple protocols to ensure optimal semiconductor performance.
What's the Difference Between the 'Standard Model' and the 'Advanced Model' of Your DC Solid State Contactors?
The 'standard model' is controlled by just a set of DC signal wires, 1 for the positive, 1 for the negative. It is most commonly used in electromechanical contactor retrofit applications where the switching frequency is not more than 10Hz.
The 'advanced model', in addition to the DC signal wires, requires a 12-24VDC power supply in order to run a central processing circuitry. However, it offers significantly more capabilities than the 'standard model', such as supporting auxiliary contacts, responding to ON/OFF command within 15μs, and modulating at a frequency up to 100 kHz with TTL/CMOS/logic signal. (Ask us about switching 100 kHz).