Siemens 3MT8300-1AC27 Power Contactor 300A, 160kW, 400V, 24V AC Coil, S10 Size Original Brand New

Overview

Siemens 3MT8300-1AC27 Power Contactor is a robust, high-performance switching device specifically engineered for heavy-duty industrial motor control applications. As a core component of the globally recognized Siemens SIRIUS 3RT series, this 3-pole contactor is built to deliver exceptional reliability, superior operational performance, and an extended service life, even in the most demanding industrial environments found across Indonesia and beyond.

Functions

The primary function of the 3MT8300-1AC27 Contactor is to safely and efficiently switch high-power electrical circuits, particularly for starting and stopping large asynchronous motors and other inductive loads. Operating under the AC-3 utilization category, it is perfectly suited for managing the high inrush currents typical of motor starting. It acts as a crucial interface between the control circuit (low voltage) and the power circuit (high voltage/current), enabling automated and remote control of industrial machinery.

Key Features:

• Model: Siemens 3MT8300-1AC27 Power Contactor
• Poles: 3-pole
• Series: Siemens SIRIUS 3RT
• Utilization Category: AC-3 (for switching asynchronous motors)
• Rated Current (AC-3): 300A
• Rated Power (AC-3): 160 kW at 400V
• Control Coil Voltage: 24V AC, 50/60Hz
  • Note on Coil Voltage: The 24V AC coil voltage offers enhanced safety and is commonly used in control circuits where a low operating voltage is preferred for personnel protection or system design flexibility. This is particularly relevant for diverse industrial setups in Indonesia.
• Size: S10
  • Note on Size S10: This indicates a substantial and robust physical size, designed to handle the high current and power ratings, while still maintaining the modularity inherent to the SIRIUS family for easier panel integration.
• Terminal Type: Screw terminals (for secure and reliable main and auxiliary circuit connections)
• Auxiliary Contacts: 4 Normally Open (NO) + 4 Normally Closed (NC) (integrated)
  • Note on Aux Contacts: This extensive configuration (4NO+4NC) provides unparalleled flexibility for complex control logic, precise interlocking with other components, real-time status monitoring, and advanced diagnostic capabilities within sophisticated automation architectures.
• Reliability: Engineered for high contact reliability, ensuring long mechanical and electrical service life even under frequent operation.
• Application: Ideal for heavy industrial motor control, large inductive loads, process automation, mining, power generation, and heavy manufacturing machinery.

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