Product Details

SCHNEIDER A203G is a heavy-duty magnetic motor starter and reliable motor controller built for three-phase industrial motors, acting as a robust switching device to manage motor start, stop and emergency cut-off for legacy automation systems. This integrated unit combines contactor and thermal overload protection elements into one compact assembly, delivering direct on-line starting and continuous overcurrent monitoring to safeguard motor windings against overload, locked rotor and phase failure. It supports frequent cyclic switching for production machinery and carries stable load capacity under standard industrial AC power supply. Clear mechanical status indicators show whether the starter is energized or tripped, allowing maintenance staff to judge operating state rapidly on site. Built-in arc suppression structure reduces contact erosion during switching cycles and extends service life under heavy use. EMI filtering and surge suppression circuits protect the control coil from voltage spikes and electromagnetic interference generated by nearby variable frequency drives and heavy power equipment. It can be wired with local push-buttons, PLC dry contacts or remote control signals to realize automatic or manual motor operation. As an obsolete industrial spare part, this magnetic motor starter is widely adopted for replacement and renovation of old motor control centers and production panels. Direct drop-in replacement keeps the original power wiring, control circuit and protection setting unchanged, cutting commissioning labour and minimizing production downtime.

Basic Parameters

Product type: magnetic motor starter

Part number: A203G

Brand: Schneider Electric

Frame size: size 5

Phase: three phase

Function: motor switching plus thermal overload protection

Control mode: automatic or manual control

Structure: integrated contactor and protection assembly

Mounting: cabinet base mounting

Rated supply: industrial three-phase AC

Cooling: natural convection

Operating temperature: 0°C ~ +60°C

Protection grade: IP20

Supported Functions

Controlled energization and de-energization for three-phase motors

Thermal overload and phase imbalance trip protection

Visual status and trip indication for field inspection

Accept remote control signals from PLC or control switches

Arc suppression for long contact service life

Noise filtering and surge protection for control coil circuits

Core Functions

Serve as a dependable magnetic motor starter for industrial drives

Visual mechanical indicator for fast field troubleshooting

Act as a stable motor controller for continuous production lines

Function as a heavy-duty switching device for motor control loops

Modular replacement for aging starters inside motor control cabinets

Provide complete start-stop and protective control for factory machinery

Hardware Specifications & Environmental Features

Construction: flame retardant housing with silver alloy contacts

Storage temperature: -25°C ~ +70°C

Relative humidity: 5% to 95% non-condensing

Condition: obsolete original spare part, available stock

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm three-phase rated voltage, motor full load current and cabinet installation space before ordering.

This is from our current stock.

available stock.xlsx