Overview: Siemens 3RT2035-1AM20 SIRIUS Power Contactor
The Siemens 3RT2035-1AM20 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT20 series, specifically engineered for switching electric motors and other industrial loads. As a robust and reliable Size S2 contactor, it is an essential component in control systems, motor starters, and load feeders. This model is rated for an operational current of 41 A (AC-3e/AC-3) and a power rating of 18.5 kW at 400 V.
Designed for exceptional durability and space efficiency, the 3RT2035-1AM20 features a control coil voltage of 208 V AC (50/60 Hz) and incorporates 1 NO + 1 NC auxiliary contacts for seamless integration into control circuits. The secure and reliable screw terminal connections make installation and maintenance straightforward.
Benefits and Features
- High Performance: Rated for up to 41 A for reliable switching of 18.5 kW motors at 400V.
- Space-Saving Design: Compact Size S2 footprint for efficient panel design.
- Integrated Auxiliary Contacts: Built-in 1 NO and 1 NC contacts simplify wiring for signaling and interlocking.
- Universal Motor Application: Suitable for switching motors under AC-3 and AC-3e utilization categories.
- Global Standard: Part of the proven Siemens SIRIUS industrial controls platform, ensuring quality and availability of accessories.
- Easy Installation: Features robust screw terminals for secure and easy wiring connection.
- Wide Compatibility: Fully compatible with other SIRIUS components like overload relays and circuit breakers for building complete motor feeders.
Function / Application
The Siemens 3RT2035-1AM20 power contactor is primarily used as a robust switching device in low-voltage industrial electrical systems. Its main function is to remotely switch ON and OFF electric motors, heaters, lighting systems, and other high-current loads. It is the ideal component for:
- Direct-on-Line (DOL) Starters for 3-phase AC motors.
- Motor Control Panels and distribution boards.
- Load Feeders in automated machinery and production lines.
- Switching resistive and highly inductive loads in various industrial and commercial environments.
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