Overview
The Siemens SIRIUS 3RT2036-1NB34-3MA0 is a high-performance power contactor designed for reliable switching of motors and other industrial loads. This robust 3-pole contactor is rated for 51A at 400V (AC-3e/AC-3) and is engineered for demanding applications. It features a unique wide-range control voltage of 20-33V AC/DC, making it highly versatile for various control systems. With integrated varistor protection, this contactor offers enhanced surge suppression for a longer service life.
The convenient screw terminals ensure a secure and straightforward electrical connection, while the two normally open (NO) and two normally closed (NC) auxiliary contacts provide excellent flexibility for control and signaling circuits. The compact S2 size and captive auxiliary switch further streamline installation and maintenance.
Benefit
- High Reliability: Built with Siemens’ renowned quality, ensuring long-term, dependable operation in critical industrial processes.
- Versatile Control: The wide-range 20-33V AC/DC control voltage simplifies inventory and is compatible with a broad range of PLC and control panel outputs.
- Enhanced Circuit Protection: The integrated varistor effectively suppresses voltage spikes, protecting both the contactor and connected equipment from electrical damage.
- Space-Saving Design: The compact S2 size allows for efficient panel design, maximizing space and reducing overall enclosure size.
- Easy Installation: Screw terminals and a captive auxiliary switch simplify wiring, reducing installation time and effort.
- Flexible Functionality: The 2 NO + 2 NC auxiliary contacts enable a wide array of control, interlocking, and status feedback applications.
Key Function & Features
- Product Number: 3RT2036-1NB34-3MA0
- Product Type: Power Contactor (SIRIUS 3RT2)
- Rated Operational Current (AC-3e/AC-3): 51 A
- Rated Power (AC-3): 22 kW at 400 V
- Number of Poles: 3
- Control Voltage: 20-33 V AC/DC (50/60 Hz) with integrated varistor
- Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)
- Terminal Type: Screw Terminals
- Frame Size: S2
- Special Feature: Captive auxiliary switch for secure and reliable operation.
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