MT0350B

Power Transformers Overview

The Siemens MT0350B is a Class MT control power transformer designed for domestic applications. It features a 350 VA power rating and operates on a single phase at 50/60 Hz. The primary voltage supports 240 V or 240 x 480 V configurations, while the secondary output provides a stable 24 VAC. Constructed with slotted windings, the unit adheres to a Class 130 deg C temperature rating. The device includes two jumpers, a secondary fuse clip rated for 50 to 500 VA, and a primary fuse kit (KCCFPX2R) to ensure comprehensive circuit protection and installation readiness.

Power Transformers Feature Summary

• Provides isolated 24 VAC secondary power from standard 240 V or 480 V primary sources
• Includes integrated secondary fuse clip and primary fuse kit for immediate circuit protection
• Features slotted winding construction for enhanced thermal management and durability

Power Transformers Applications

• Industrial control panel power distribution
• Domestic electrical system isolation
• Machine tool control circuit supply

Power Transformers Procurement Notes

Verify that the required primary voltage configuration matches the installed wiring, as the unit supports both 240 V and 240 x 480 V inputs via jumper settings. Confirm that the secondary load does not exceed the 350 VA rating to prevent overheating. Ensure the included KCCFPX2R primary fuse kit and the 50 to 500 VA secondary fuse clip are compatible with the specific circuit breakers or fuses used in the target application to maintain safety compliance.

Power Transformers Selection Notes

Select this model when a dedicated control transformer is needed to step down line voltage to 24 VAC for sensitive control components. The 350 VA capacity suits moderate-load industrial panels. Consider the chassis mount form factor and IP20 enclosure rating for indoor panel integration. Verify that the Class 130 deg C insulation class meets the ambient temperature requirements of the installation environment.

Power Transformers Part Context

This component belongs to the Siemens Class MT series of control power transformers. These units are engineered for reliable voltage transformation in industrial automation environments. The MT series emphasizes robust construction and standardized dimensions to facilitate easy replacement and integration into existing control architectures without requiring extensive panel modifications.

Power Transformers Replacement Considerations

Direct replacements must match the 350 VA rating, 240/480-24V specifications, and chassis mount style. Verify that any substitute part offers equivalent insulation class and includes comparable protective accessories.