ALSTOM MAVS01L1AB0501D

Product Description

The ALSTOM MAVS01L1AB0501D is a critical electromechanical or solid-state switching device from Alstom’s specialized range of contactors and power control components. Designed for demanding industrial and infrastructure applications, this model functions as a robust contactor or a power switching module, responsible for reliably making and breaking electrical circuits under load. The primary role of the ALSTOM MAVS01L1AB0501D is to provide safe and controlled switching of motors, heaters, transformers, or capacitor banks within automation panels and power distribution systems. Incorporating the MAVS01L1AB0501D into a design ensures compatibility with Alstom’s broader protection and control schemes, offering a validated solution for high-current applications.

Product Parameters

• Manufacturer / Brand: Alstom

• Product Type: Power Contactor / Heavy-Duty Switching Module

• Model: MAVS01L1AB0501D

• Series: Part of the MAVS or similar contactor series for industrial control.

• Rated Operational Current (Ie): Likely designed for a significant current rating, potentially in the range of 50A to 150A or higher, as indicated by the numerical codes.

• Rated Operational Voltage (Ue): Suitable for standard low-voltage three-phase systems (e.g., up to 690V AC, 50/60Hz).

• Coil Control Voltage: Available in various standard AC or DC voltages (e.g., 24V DC, 110V AC, 230V AC) as specified by the order code suffix.

• Poles: Typically a 3-pole main contact configuration for three-phase power switching, with optionally integrated auxiliary contacts (NO/NC) for control signaling.

• Mounting: Designed for panel mounting, often on a DIN-rail or a dedicated mounting plate.

• Enclosure / Protection Degree: Features an industrial housing with a protection rating such as IP20 for panel mounting.

Advantages and Features

• High Breaking Capacity: Engineered to safely interrupt high fault currents, protecting downstream equipment and personnel.

• Long Electrical Life: Utilizes durable contact materials and arc quenching technology to ensure a high number of operational cycles under rated load.

• Mechanical Durability: Robust construction withstands mechanical shock and vibration, making it suitable for heavy industrial and transportation environments.

• Modular Design: Often allows for easy addition of auxiliary contact blocks, mechanical interlocks, or pneumatic timers to expand functionality.

• Clear Status Indication: Features a visible mechanical flag or window to indicate the ON/OFF status of the main contacts.

• Thermal Management: Designed with efficient heat dissipation to maintain performance and reliability during continuous operation.

Application Cases in Key Fields

• Industrial Motor Control: Used as the main contactor in Direct-On-Line (DOL) or star-delta starters for controlling pumps, fans, compressors, and conveyor drives in manufacturing plants.

• Power Factor Correction (PFC) Systems: Employed to switch capacitor banks in and out of the circuit to manage reactive power and improve efficiency in electrical networks.

• Railway Auxiliary Power Circuits: Controls heavy loads such as heating, ventilation, air conditioning (HVAC) systems, or battery chargers on board trains and trams.

• Infrastructure and Building Management: Used in control panels for large HVAC systems, water treatment plant equipment, and automated material handling systems.

Comparison with Competing Products

When compared to general-purpose contactors from global suppliers like Schneider Electric (TeSys), Siemens (Sirius), or ABB, the ALSTOM MAVS01L1AB0501D offers comparable core switching performance. Its primary distinction is its provenance and validation within Alstom’s own system designs, particularly in the rail and heavy industry sectors. Competing products may offer a wider range of accessories, broader availability, and more integration options with their respective PLC ecosystems. However, for maintaining an existing Alstom-designed panel or meeting strict project specifications that call for OEM components, the ALSTOM MAVS01L1AB0501D is the assured choice, eliminating compatibility and approval risks.

Selection Suggestions and Precautions

• Verify Electrical Ratings Precisely: Confirm the exact rated operational current and voltage for your specific load. Do not assume based on the model series alone; the full code MAVS01L1AB0501D defines the specific variant.

• Match Coil Voltage: Ensure the control coil voltage (specified in the suffix, e.g., AB0501D) matches your panel’s control circuit supply voltage (AC or DC) to ensure proper operation.

• Consider the Load Type: Account for the inrush current of the load (especially for motors or transformers). The contactor must be rated to handle the starting current without contact welding.

• Check for Required Accessories: Determine if you need auxiliary contacts for feedback, a mechanical interlock for another contactor, or a surge suppression module for the coil.

• Install with Adequate Clearance: Follow manufacturer guidelines for minimum electrical clearance and creepage distances around the device to ensure safe operation and prevent arcing.