IN Brief:
- RACM3000-M provides up to 3kW and delivers full rated power from a 180–264VAC input.
- CAN control, remote sense, active current sharing and optional OR-ing FETs support monitored and parallel power architectures.
- RECOM also plans RDC3000-M variants for systems using 400–800VDC input.
RECOM has introduced the RACM3000-M family of enclosed AC/DC power supplies, providing up to 3kW with CAN control, parallel operation and safety approvals for medical, industrial and energy equipment.
The supply accepts 90 to 264VAC and delivers its full 3kW output from 180 to 264VAC. RECOM also plans RDC3000-M variants for 400 to 800VDC input, extending the same general power platform towards systems that distribute energy on a higher voltage DC bus rather than feeding every load directly from AC mains.
System control is built around an integrated CAN interface that supports monitoring and adjustment from a host controller. The unit also provides a 5V/2A standby output, remote on and off control, remote sense and a DC-OK signal. Those interfaces allow the power supply to participate in the equipment control architecture instead of behaving as a fixed output block that can only be checked locally.
Remote sense compensates for voltage lost between the supply and the load. At several kilowatts, conductor resistance can produce a meaningful drop when current travels through cables, terminals or distribution bars. Sense connections measure the voltage closer to the load so the regulator can correct for that loss within its permitted adjustment range, helping the equipment receive the intended rail voltage under changing load.
Higher power can be obtained by operating several units in parallel. RECOM uses active load sharing so the connected supplies divide demand rather than allowing one unit to carry a disproportionate current. Optional OR-ing FETs can isolate parallel outputs and prevent reverse current into a supply whose output has fallen below the common bus, which is useful in redundant architectures or systems where individual power modules may be removed from service.
The same control features have different roles depending on the application. Medical diagnostic equipment may use standby power and remote status signals to manage how the system starts and shuts down. Industrial automation can use CAN data to monitor the supply alongside drives and controllers. Battery charging, communications infrastructure and energy systems can use parallel modules to increase capacity or provide redundancy without redesigning the complete conversion stage.
RECOM lists medical and ICT safety approvals for the range, together with requirements relevant to battery charging. The company also specifies two Means of Patient Protection isolation for medical applications. Those approvals define the insulation and safety characteristics of the power supply itself, but they do not certify the finished equipment. Creepage, clearance, protective earthing, enclosure design and the way the supply is integrated still have to be assessed as part of the end product.
Thermal management is handled by a fan whose speed is controlled by temperature. The fan can respond to operating conditions rather than running permanently at maximum speed, reducing unnecessary airflow and noise when the load or ambient temperature is lower. At 3kW, conversion losses still become a significant thermal load even at high efficiency, so the system designer has to provide enough inlet and exhaust clearance for the supply to remain within its specified temperature limits.
The planned 400 to 800VDC input version extends the architecture into equipment built around higher voltage DC distribution. Increasing the bus voltage reduces current for a given amount of transmitted power, which can reduce conductor losses and cable size over part of the distribution path. The downstream converter still has to provide the lower voltages required by the load, so the benefit depends on the architecture of the complete system rather than the supply in isolation.
RECOM identifies automated medical analysis, diagnostic equipment, cobots, machine control, battery charging, communications infrastructure, energy storage and data centres among the target applications. The common requirement is not simply 3kW of output. These systems increasingly need power modules that can be monitored, combined and controlled as part of a larger electrical system.
RACM3000-M combines that control layer with a high output power stage rather than treating power conversion as a sealed subsystem. Variant availability will determine how quickly designers can adopt the family, while the planned DC input versions will broaden the range once they move from roadmap to released products.
