CUS600M-24
600W medical-grade AC-DC power supply with 24V output, 96% efficiency, and 2xMOPP isolation for patient safety.
Product Overview
Description
The CUS600M-24 from TDK-Lambda is a high-efficiency 600W AC-DC power supply designed for medical and industrial applications requiring high reliability and safety. Featuring a universal 85-264VAC input and 24VDC output at 25A, this power supply achieves exceptional efficiency up to 96%, minimizing heat generation and energy costs. The medical-grade certification to IEC 60601-1 with 2xMOPP (Means of Patient Protection) isolation makes it suitable for patient-connected equipment. With an operating temperature range of -20°C to +70°C and comprehensive protection features including overvoltage, overcurrent, and overtemperature protection, the CUS600M-24 delivers reliable performance in demanding environments.
Product Series
CUS
Primary Application
Medical imaging equipment
Key Features
- 600W output power with 24V at 25A
- Medical-grade 2xMOPP isolation
- High efficiency up to 96%
- Universal 85-264VAC input
- Active PFC (power factor >0.95)
- Wide operating temperature range
- Comprehensive protection (OVP, OCP, OTP)
- 5-year standard warranty
Specifications
| outputPower | 600W |
|---|---|
| inputVoltage | 85-264VAC |
| outputVoltage | 24VDC |
| outputCurrent | 25A |
| efficiency | Up to 96% |
| operatingTemperature | -20°C to +70°C |
| safetyStandards | IEC 60601-1, IEC 62368-1 |
| isolation | 2xMOPP |
| mtbf | 700,000 hours |
| dimensions | 127mm x 76.2mm x 38.5mm |
| warranty | 5 years |
Applications
Medical imaging equipment
Medical electronics
Patient monitoring systems
Electronic system design
Diagnostic equipment
Electronic system design
Surgical equipment
Electronic system design
Laboratory instruments
Electronic system design
Industrial automation
Industrial automation and control
Test and measurement
Data acquisition and conversion
Telecommunications
Communication and interface
FAE Expert Insights
"The CUS600M-24 is my go-to recommendation for medical equipment requiring high power in a compact form factor. The 96% efficiency is exceptional for a medical-grade supply - I've seen it reduce thermal management requirements significantly compared to lower-efficiency alternatives. The 2xMOPP isolation provides peace of mind for patient-connected applications, and the 700,000-hour MTBF rating speaks to its reliability. I particularly appreciate the wide input voltage range which simplifies global deployment. For medical device manufacturers, the 5-year warranty and TDK-Lambda's reputation for quality make this a low-risk choice. I've successfully specified this supply for several imaging and monitoring applications with excellent field reliability."
Exceptional efficiency and medical-grade isolation for patient-connected applications
— Michael Chen, BeiLuo
Frequently Asked Questions
What does 2xMOPP isolation mean for medical applications?
2xMOPP (Means of Patient Protection) is the highest level of isolation required for medical equipment under IEC 60601-1. It provides two independent protection measures between the AC mains and any patient-connected parts. The CUS600M-24 achieves this through reinforced insulation and protective earth connections, ensuring that even if one protection measure fails, the second maintains safety. This allows the power supply to be used in Type B (body), Type BF (body floating), and Type CF (cardiac floating) medical equipment. The 2xMOPP rating is essential for devices that have direct patient contact, such as patient monitors, infusion pumps, and surgical equipment.
For medical devices with patient contact, verify the required isolation level in your risk analysis and select appropriately certified power supplies.
How does the 96% efficiency benefit my application?
The 96% efficiency of the CUS600M-24 provides multiple benefits: Reduced energy consumption - for a 600W output, input power is 625W instead of 750W at 80% efficiency, saving 125W; Lower operating costs - over 5 years at $0.12/kWh, this saves approximately $650 in electricity; Reduced heat generation - the 24W power loss generates less heat, simplifying thermal management and reducing cooling system requirements; Extended component lifetime - lower internal temperatures improve reliability and extend MTBF; Smaller enclosure requirements - less heat dissipation allows for more compact equipment designs. These benefits are particularly valuable in medical equipment where reliability and quiet operation are critical.
For energy-sensitive or thermally constrained applications, prioritize high-efficiency power supplies like the CUS600M-24.
Can the CUS600M-24 be used in parallel with other units?
The CUS600M-24 supports parallel operation for increased power capacity or redundancy. Up to 4 units can be paralleled using the current sharing feature to provide up to 2400W total output power. For parallel operation, all units must be set to the same output voltage using the onboard trim potentiometer. The current sharing accuracy is typically within ±5%, ensuring balanced load distribution. For true redundancy applications (N+1 configuration), external OR-ing diodes are recommended to prevent back-feeding during a unit failure. Parallel operation requires proper thermal management as multiple units in close proximity will generate combined heat. Consult the application note for detailed parallel connection guidelines.
For parallel operation, follow TDK-Lambda's application notes for proper wiring and thermal management.
What is the recommended derating for high temperature operation?
The CUS600M-24 is rated for full 600W output up to 50°C ambient temperature with natural convection cooling. Above 50°C, output power must be derated linearly to 50% at 70°C. For example, at 60°C ambient, maximum output power is 450W (75% of rated). Forced air cooling can extend the full-power range - with 200 LFM airflow, full power is maintained up to 60°C. When planning your thermal design, measure the actual ambient temperature inside your enclosure under worst-case conditions, not just room temperature. The power supply's internal temperature rise must also be considered - ensure adequate clearance around the unit for airflow. TDK-Lambda provides detailed derating curves in the datasheet for various cooling conditions.
Calculate thermal requirements based on worst-case ambient temperature and consider forced air cooling for high-temperature applications.
What is the power good signal and how is it used?
The CUS600M-24 includes a power good (PG) signal that indicates when the output voltage is within regulation. The PG signal is an open-collector output that pulls low when the output voltage is below 90% of nominal (21.6V for the 24V model). When the output reaches regulation, the PG signal goes high impedance and can be pulled up to an external voltage. This signal is useful for: Sequencing multiple power supplies in systems with specific startup requirements; Holding a system in reset until power is stable; Providing status indication to a microcontroller or monitoring system; Implementing power failure warning - the PG signal typically drops 5-10ms before the output voltage falls, allowing time for system shutdown. The PG signal can sink up to 10mA and withstand up to 30V.
Use the power good signal for system sequencing, reset control, or power monitoring in your application.