Product Description

Siemens SIRIUS Power Contactor 41A, 18.5kW, 400V, 3-Pole, 24V AC, Size S2 – 3RT2035-1AC20

Product Description

The Siemens 3RT2035-1AC20 is a premium Power Contactor from the trusted SIRIUS 3RT2 series, designed for reliable switching and control of three-phase motors and industrial electrical loads. It features an AC-3e/AC-3 rating of 41A and is suitable for motors up to 18.5 kW at 400V. The contactor operates with a 24V AC control voltage at 50/60 Hz and provides 1 NO + 1 NC auxiliary contacts for control, feedback, signaling, and electrical interlocking. It uses screw terminal connections and has a compact S2 size design.

The Siemens 3RT2035-1AC20 is suitable for three-phase motor control, Motor Control Centers (MCC), DOL starters, pump control systems, compressors, conveyor systems, HVAC equipment, industrial machinery, OEM control panels, and factory automation. Its robust SIRIUS construction and reliable screw-terminal connections make it suitable for demanding industrial motor-control applications.

At SB Smart, Faridabad, we supply 100% genuine Siemens SIRIUS contactors, motor protection circuit breakers, overload relays, soft starters, MCCBs, MCBs, and industrial automation products at competitive prices. We provide GST invoices, expert technical support, bulk order assistance, secure packaging, and fast delivery across Faridabad, Delhi NCR, and all major cities in India, making SB Smart a trusted supplier for industries, OEMs, panel builders, and electrical contractors.

Key Features

• Genuine Siemens SIRIUS 3RT2 Power Contactor

• Model: 3RT2035-1AC20

• Utilization Category: AC-3e/AC-3

• Rated Operational Current: 41A

• Motor Power: 18.5 kW at 400V

• Rated Operating Voltage: 400V

• 3-Pole Configuration

• Control Voltage: 24V AC

• Control Frequency: 50/60 Hz

• Auxiliary Contacts: 1 NO + 1 NC

• Screw Terminal Connections

• Contactor Size: S2

• Rated Insulation Voltage: 690V

• Surge Withstand Voltage: 6 kV

• Front Protection: IP20

• Mechanical Service Life: Up to 10 million operating cycles

• Ambient Operating Temperature: -25°C to +60°C

• Suitable for three-phase motor switching

• Suitable for industrial automation and motor-control applications

Applications

• Motor Control Centers (MCC)

• Industrial Automation Panels

• DOL Motor Starters

• Three-Phase Motor Control

• Pump Control Panels

• Compressors

• Conveyor Systems

• HVAC Systems

• Manufacturing Machinery

• OEM Electrical Panels

• Machine Control Panels

• Factory Automation

Benefits

• Reliable 41A AC-3e/AC-3 motor switching

• Suitable for motors up to 18.5 kW at 400V

• Reliable 24V AC, 50/60 Hz control operation

• 1 NO + 1 NC auxiliary contacts for control and signaling

• Secure screw-terminal connections

• Compact and durable S2 design

• High 690V insulation voltage

• 6kV surge withstand capability

• Long mechanical service life

• Suitable for demanding industrial applications

• Reliable Siemens SIRIUS performance

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RT2035-1AC20 used for?

The Siemens 3RT2035-1AC20 is a SIRIUS power contactor designed for switching and controlling three-phase motors and industrial electrical loads. It is rated at 41A AC-3e/AC-3 and supports motors up to 18.5 kW at 400V.

Q2. What is the rated current of 3RT2035-1AC20?

The contactor has a rated operational current of 41A in AC-3 applications at 400V.

Q3. What motor power can it handle?

The 3RT2035-1AC20 is suitable for motors up to 18.5 kW at 400V.

Q4. What is the control voltage?

The contactor operates with a 24V AC control voltage at 50/60 Hz.

Q5. What auxiliary contacts are provided?

It includes 1 NO + 1 NC auxiliary contacts, which can be used for control, feedback, signaling, and electrical interlocking.

Q6. What type of terminals does it use?

The contactor uses screw terminal connections for electrical wiring.

Q7. What is the contactor size?

The 3RT2035-1AC20 belongs to Size S2.

Q8. Is it suitable for DOL motor starters?

Yes. The contactor can be used in DOL motor starter assemblies with an appropriately selected motor protection device.

Q9. Where can Siemens 3RT2035-1AC20 be used?

It can be used in MCC panels, industrial automation systems, pumps, compressors, conveyors, HVAC equipment, manufacturing machinery, OEM panels, and factory automation applications.

Q10. Why buy Siemens 3RT2035-1AC20 from SB Smart Faridabad?

SB Smart, Faridabad supplies 100% genuine Siemens industrial products with competitive pricing, expert technical support, GST invoices, bulk order assistance, secure packaging, and fast delivery across Faridabad, Delhi NCR, and throughout India.