HMS02.1N-W0028-A-27-NNNN by Bosch Rexroth Indramat

The HMS02.1N-W0028-A-27-NNNN inverter from Bosch Rexroth Indramat represents a high-performance member of the HMS Axis Inverters series engineered for demanding single-axis motion control. This unit accepts a rated input voltage (power) of DC 254-750V and delivers an output voltage of 3x AC 0-500V, ensuring compatibility with a wide range of motor types. With a rated input current of 18.4 A and a rated maximum current of 28 A, it provides ample headroom for continuous and dynamic operation. The inverter’s compact footprint—device height of 352 mm, device width of 50 mm, and device depth of 205 mm—facilitates mounting in standard control cabinets without compromising service access or airflow. Designed Version 1 and Line Version 2 identifiers confirm the current generation of this proven platform.

Technical capabilities of the HMS02.1N-W0028-A-27-NNNN inverter include an advanced Cooling Type: Internal Air with Integrated Blower that maintains optimal thermal performance, even under high ambient loads. The protection class is IP20, safeguarding internal electronics against solid ingress. Built for industrial environments, it meets both UL Standard Listing: UL 508 C and CSA Standard Listing: C22.2 No. 14-05 requirements, with certification files referenced under UL Files: E 134201. The inverter boasts a short circuit current rating of 42,000 A rms, ensuring system-level robustness when paired with compliant fuses or circuit breakers. A rated control voltage input of 24V ± 20% provides reliable logic-level power for auxiliary functions and external controls.

Operational features are tailored for reliability and ease of use. The unit’s ambient temperature range supports a nominal ambient temp of 40°C and a reduced-capacity rating up to 55°C, accommodating varied climate conditions. The absence of an Internal Power Supply simplifies integration with external DC sources and enhances system modularity. Maintenance is streamlined by the inverter’s fan-cooled design and easily removable blower assembly for service or cleaning. An integrated fault monitoring system provides real-time diagnostics, while CE marking and additional safety certifications ensure compliance with global standards.

Integration of the HMS02.1N-W0028-A-27-NNNN inverter into motion control systems is straightforward thanks to its standardized dimensions and industry-proven interface protocols. The unit pairs seamlessly with both synchronous and asynchronous motors, supporting a nominal DC bus voltage of 700 V for high-power installations. Control engineers benefit from compatibility with Bosch Rexroth Indramat’s parameterization software, enabling rapid commissioning and automated tuning. Applications span industrial automation sectors—including machine tools, packaging equipment, and robotics—where precision, reliability, and efficient thermal management are paramount.