The Siemens 3RT2535-1AF00 is a high-performance SIRIUS 3RT2 Series power contactor designed for reliable switching of motors and industrial loads in demanding automation environments. This 4-pole contactor features 2 Normally Open (NO) and 2 Normally Closed (NC) main contacts, making it suitable for a wide range of motor control, power switching, HVAC, and industrial automation applications. It is equipped with a 110V AC, 50 Hz operating coil and robust screw terminal connections for secure installation.
Rated for AC-3 operational current of 35 A and motor applications up to 18.5 kW at 400 V, the 3RT2535-1AF00 delivers dependable switching performance for three-phase motors, pumps, compressors, conveyors, and industrial machinery. Its compact S2 frame size allows efficient panel integration while maintaining high switching capacity.
The contactor includes 1 NO + 1 NC integrated auxiliary contacts, providing additional flexibility for control logic, signaling, interlocking, and monitoring functions. The integrated auxiliary contacts eliminate the need for additional accessories in many control panel applications, reducing installation time and space requirements.
Built according to Siemens SIRIUS quality standards, the 3RT2535-1AF00 offers a rated insulation voltage of 690 V, high switching durability, and a mechanical service life of up to 10 million operating cycles, ensuring long-term reliability in continuous-duty industrial environments.
Its screw-terminal connection technology provides secure wiring and easy maintenance, making it suitable for motor control centers (MCCs), industrial control panels, building automation systems, water treatment plants, manufacturing facilities, and process automation applications.
As part of the trusted Siemens SIRIUS 3RT2 contactor family, the 3RT2535-1AF00 delivers efficient motor switching, reliable control performance, and seamless compatibility with Siemens motor starters, overload relays, and automation systems.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Brand | Siemens |
| Series | SIRIUS 3RT2 |
| Model Number | 3RT2535-1AF00 |
| SKU | 3RT2535-1AF00 |
| Product Type | Power Contactor |
| Utilization Category | AC-3 |
| Rated Operational Current (AC-3) | 35 A |
| Motor Rating at 400 V | 18.5 kW |
| Number of Poles | 4 Pole |
| Main Contacts | 2 NO + 2 NC |
| Auxiliary Contacts | 1 NO + 1 NC Integrated |
| Coil Voltage | 110 V AC |
| Coil Frequency | 50 Hz |
| Frame Size | S2 |
| Terminal Type | Screw Terminals |
| Rated Insulation Voltage (Ui) | 690 V |
| Mechanical Life | Up to 10 Million Operations |
| Mounting | Panel Mounting |
| Application | Motor Control & Power Switching |
| Product Family | Siemens SIRIUS Contactors |
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