Description

ALSTOM MC1AB37 4022.437.1856 contactor

It is an industrial contactor produced by Alstom with a rated current of about 37A. It belongs to the classic TeSys MC1 series and is used to control the remote on and off of power loads such as motors.

Model Number Breakdown

This long model number can be broken down into several parts, each representing a key characteristic of the product:

1. MC1:

   • This is the classic series designation for an Alstom contactor. The TeSys MC1 series is a very well-known and widely used product line in the market.

   • It represents the basic design framework, form factor, and performance range of the contactor.

2. AB37:

   • A: Typically indicates a Standard AC Coil.

   • B37: This is the current rating code. In the TeSys MC1 series, B37 usually corresponds to a 37 Amp rated operational current. This means the contactor is designed to control loads with a rated current not exceeding 37A.

3. 4022.437.1856:

   • This is the full order number / material number for this specific variant. It precisely defines all the configuration details of the contactor, including:

     • Coil Voltage and Frequency (e.g., common versions like 24V AC/DC, 110V AC, 220V AC, 380V AC, 50/60Hz, etc.). This is the control signal voltage that drives the contactor to open and close.

     • Contact Configuration: Typically 3 main poles (for connecting the main power, e.g., for a three-phase motor) plus auxiliary contacts (often 1 Normally Open + 1 Normally Closed or more, for control circuit signaling).

     • Mounting Style (e.g., standard rail mounting).

     • Other Optional Accessories (like mechanical interlocks, pneumatic timers, etc.).

   • To find the exact coil voltage and other details for the specific material number 4022.437.1856, it is necessary to consult the official Alstom product catalog or use Schneider Electric’s product selection tools.

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Key Technical Characteristics (Based on generic MC1 series features)

• Rated Operational Current (Ie): Approximately 37A (under AC-3 duty, e.g., for controlling three-phase squirrel-cage motors).

• Rated Insulation Voltage (Ui): Typically 690V or 1000V.

• Suitable Loads: Primarily used for controlling three-phase AC motors, but also suitable for resistive loads (e.g., heaters), lighting loads, etc.

• Mechanical Life: Very high, up to several million operations.

• Electrical Life: Typically several hundred thousand operations under rated load.

• Standards Compliance: Conforms to international standards such as IEC/EN 60947-4-1.

• Mounting: Typically mounted on a 35mm standard top-hat rail (DIN rail).

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Typical Applications

This type of contactor is widely used in industrial environments that require automatic control of motor start/stop, for example:

• Industrial Machinery: Machine tools, conveyor belts, packaging machines, pumps, compressors, fans, etc.

• Building Automation: Control of fans and pumps in HVAC (Heating, Ventilation, and Air Conditioning) systems.

• Power Distribution and Control Panels: Serves as the actuating component in automatic control circuits.

 

 

Sales of the brand:

ABB、EPRO、GE、FOXBORO、Schneider、Rexroth、Honeywell、Bently、YASKAWA other global DCS system and PLC system, servo system of famous industrial brand.

 

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