The Siemens 3RT2535-1AF00 is a high-performance Siemens SIRIUS 3RT25 Power Contactor designed for reliable switching and control of electrical loads in industrial applications. This 4-pole contactor is rated for 35 A in AC-3 utilization category and is suitable for switching three-phase motors and other industrial loads up to 18.5 kW at 400 V. The contactor features a 110 V AC, 50 Hz control coil, making it suitable for industrial motor control panels and automation systems.
The 3RT2535-1AF00 Siemens contactor features 2 normally open (NO) and 2 normally closed (NC) main contacts, providing a flexible 4-pole switching configuration. It also includes 1 NO + 1 NC auxiliary contact, supporting control, interlocking, signaling and automation functions within motor starter and control circuits. The main and auxiliary connections use screw terminals for secure and practical wiring.
With its Size S2 construction, the Siemens SIRIUS 3RT2535-1AF00 is designed for industrial control cabinets, motor control centers, machine automation systems and electrical switching applications. Siemens specifies the 3RT25 family for applications involving pole-changing arrangements and the product is designed for screw and snap-on mounting on TH 35 DIN rail.
The contactor provides a robust solution for motor starters, industrial automation panels, machine control systems, MCC panels, HVAC equipment, pumps, compressors, conveyors and other industrial electrical applications requiring dependable contactor switching.
The Siemens SIRIUS contactor family is designed for long service life and reliable switching performance. For the 3RT2535-1AF00, Siemens documentation specifies a typical mechanical service life of up to 10 million switching cycles and an operating ambient temperature range of -40°C to +70°C.
Genuine Siemens SIRIUS Power Contactor
Article Number: 3RT2535-1AF00
Product Family: SIRIUS 3RT25
Contactor Type: Power Contactor
Utilization Category: AC-3
Rated Operational Current: 35 A
Motor Rating: 18.5 kW at 400 V
Number of Poles: 4-pole
Main Contacts: 2 NO + 2 NC
Auxiliary Contacts: 1 NO + 1 NC
Control Voltage: 110 V AC
Control Frequency: 50 Hz
Connection Type: Screw Terminal
Contactor Size: S2
Suitable for industrial motor control applications
Screw and snap-on mounting capability
Designed for reliable industrial switching
Typical mechanical service life up to 10 million switching cycles
Operating ambient temperature: -40°C to +70°C
The Siemens 3RT2535-1AF00 power contactor is suitable for a wide range of industrial electrical applications, including:
Three-phase motor control
Motor starter panels
DOL motor starter applications
Industrial automation systems
Motor Control Centers (MCC)
Machine control panels
Factory automation
Pump control systems
Conveyor systems
Compressor control
HVAC control systems
Industrial machinery
OEM control cabinets
Manufacturing equipment
Electrical switching panels
Pole-changing motor applications
Reliable 35 A AC-3 motor switching
Suitable for motors up to 18.5 kW at 400 V
4-pole configuration provides flexible circuit switching
Integrated 1 NO + 1 NC auxiliary contacts support control and signaling functions
110 V AC coil suitable for compatible industrial control circuits
Screw terminals provide secure electrical connections
Compact S2-size industrial design
Suitable for motor control and automation panels
Designed for demanding industrial environments
Long mechanical service life
Genuine Siemens SIRIUS product for dependable industrial applications
The 3RT2535-1AF00 is a Siemens SIRIUS 3RT25 four-pole power contactor rated at 35 A AC-3 and 18.5 kW at 400 V, with a 110 V AC, 50 Hz control coil.
The contactor is rated for 18.5 kW at 400 V under AC-3 motor switching conditions.
The 3RT2535-1AF00 has an AC-3 operational current rating of 35 A.
The control coil is rated for 110 V AC at 50 Hz.
This model has 4 main contacts: 2 normally open (NO) and 2 normally closed (NC).
The contactor includes 1 NO + 1 NC auxiliary contact, which can be used for control, interlocking and signaling functions.
The Siemens 3RT2535-1AF00 is Size S2.
The product uses screw terminals for its electrical connections.
It can be used in motor control panels, industrial automation systems, MCC panels, machine control cabinets, pumps, compressors, conveyors, HVAC systems and industrial machinery requiring a 4-pole AC-3 contactor.
Siemens documentation specifies a typical mechanical service life of up to 10 million switching cycles for the contactor.
The specified ambient operating temperature range is -40°C to +70°C.
Yes. Its AC-3, 35 A and 18.5 kW at 400 V ratings make it suitable for compatible motor-switching applications and industrial motor control 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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