Overview
The Siemens 3RT2036-3NB30 is a high-performance power contactor designed for industrial and commercial applications. Engineered for durability and efficiency, this 3-pole contactor delivers reliable switching for motors and electrical circuits up to 22 kW at 400 V. Its integrated varistor protects the system against voltage spikes, ensuring long-lasting operation.
Key Benefit
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High Current Capacity: Handles up to 51 A and motor loads of 22 kW at 400 V.
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Integrated Protection: Built-in varistor safeguards equipment from voltage surges.
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Versatile Control: Compatible with 20-33 V AC/DC control voltage at 50/60 Hz.
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Flexible Installation: Screw terminals for main circuit and spring-loaded terminals for control and auxiliary circuits simplify wiring.
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Reliable Operation: 1 NO + 1 NC auxiliary contacts provide additional control options.
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Compact Design: Size S2 makes it suitable for space-constrained electrical panels.
Functionality
The Siemens 3RT2036-3NB30 contactor is ideal for controlling AC motors and other heavy electrical loads. It provides smooth switching, energy efficiency, and protection from transient voltages, making it a dependable component for industrial automation, manufacturing machinery, and electrical distribution systems.
Technical Specification
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Type: Power Contactor
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Poles: 3
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Current Rating: 51 A
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Power Rating: 22 kW / 400 V
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Control Voltage: 20-33 V AC/DC
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Frequency: 50/60 Hz
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Auxiliary Contacts: 1 NO + 1 NC
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Protection: Integrated varistor
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Terminals: Screw (main), spring-loaded (control & auxiliary)
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Size: S2
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