The MS 450-40 is a robust thermal-magnetic manual motor starter designed to protect motors up to 18.5 kW. It combines overload, short circuit, and phase failure protection with manual ON/OFF control. This model is built for heavy-duty industrial applications requiring reliable motor protection and easy operation.

Application:
Used in industrial motor control panels, machinery, and standalone motors where high current ratings and dependable motor protection are essential.

Objective:
To safeguard motors against electrical faults such as overloads and short circuits, ensuring prolonged motor life and reducing downtime, while providing convenient manual switching.

✔️ Key Features:

• Current Range: 28.00 – 40.00 A

• Motor Power Rating: Up to 18.5 kW (400 V, AC-3)

• Trip Class: Class 10 – rapid overload response

• Short-Circuit Breaking Capacity: Up to 25 kA

• Phase Failure Protection: Integrated phase loss detection

• Manual ON/OFF Rotary Handle: Trip-free mechanism for safe operation

• Design: Compact and sturdy with DIN rail mounting capability

• Protection Class: IP20 with finger-safe terminals

• Mechanical Endurance: ≥ 100,000 operation cycles

• Optional Accessories: Auxiliary contacts, shunt trips, undervoltage releases for extended functionality