6SE9112-0CA13 - Inverter - SIEMENS

MICROMASTER JUNIOR MMJ37/2 6SE9112-0CA13, 370 W 230 V single-phase inverter for asynchronous motors

Intended for maintenance managers, system integrators and machine builders, the SIEMENS MICROMASTER JUNIOR MMJ37/2 drive, reference 6SE9112-0CA13, meets the need for simple and robust control of asynchronous motors in industrial environments. With a rated power of 370 W and a 230 V single-phase supply, it integrates easily into existing installations, particularly during upgrades or preventive replacements. The version without an internal filter allows the EMC strategy to be tailored to the control cabinet layout and the site's regulatory requirements using appropriate external filters. Renowned for its reliability, the MICROMASTER JUNIOR range is a proven solution to stabilise speed, smooth start-ups and reduce mechanical stress on production equipment. In addition, SEI supports you with supply options, standard exchange or repair services to control total cost of ownership and minimise downtime.

Key operational benefits

• Production continuity – Smooth starting and speed regulation that reduce jerks, limit unplanned stops and protect downstream equipment.
• Integration flexibility – 230 V single-phase supply convenient for workshops and standalone machines, useful for retrofits on existing installations.
• Energy consumption control – Adjusting motor speed to actual demand can help reduce power drawn on variable loads.
• Control quality – Asynchronous motor control with essential frequency variation functions for a stable, repeatable process.
• Asset longevity – Solution from a widely deployed range, favourable for maintenance and service availability throughout its lifecycle.

Key features and design quality

The 6SE9112-0CA13 corresponds to the MICROMASTER JUNIOR MMJ37/2. Verified information confirms a rated power of 370 W, a 230 V single-phase supply and a version without an internal filter. This technical positioning makes it a suitable choice for light or basic industrial applications where the primary requirement is reliable speed variation on an asynchronous motor. The MICROMASTER JUNIOR family is designed for operational simplicity and robustness, with clear adjustment of essential parameters and an architecture intended for industrial control cabinets. The absence of a built-in filter allows selection of the most appropriate external EMC component for the site context, which eases compliance across multiple environments. Backed by SIEMENS expertise, the drive benefits from controlled build quality and functional consistency that secure commissioning and day-to-day operation.

Typical uses and application environments

The 6SE9112-0CA13 naturally fits conveyors, small pumps and fans, mixers or feed mechanisms—where simple speed variation improves the process. Maintenance teams use it for rapid replacement of ageing drives, while integrators deploy it in compact machines, standalone stations or light production lines requiring stable motor control. It is aimed at industrial sectors looking for a rational and reliable solution for moderate loads.

Differentiation, reliability and support

The strength of the MICROMASTER JUNIOR range lies in its wide field deployment and the recognised reliability of SIEMENS. To minimise equipment downtime, SEI offers short lead times, standard exchange solutions, supply of new or refurbished units, and repair services. This multi-service approach allows budgets to be adapted to the context while securing functional availability. SEI warranties, from 6 to 24 months depending on the chosen service, add peace of mind to your technical and financial decisions.

Whether you need to accelerate a restart or plan a retrofit while controlling total cost of ownership, the 6SE9112-0CA13 variable speed drive is a reliable solution for your asynchronous motors. Contact our teams for a quote, availability within 24 to 72 h depending on stock, or to discuss standard exchange and repair options tailored to your installed base.