Product Description

Siemens SIRIUS Power Contactor 51A, 22kW, 400V, 3-Pole, 20–33V AC/DC, Size S2 – 3RT2036-1NB30

Product Description

The Siemens 3RT2036-1NB30 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. Featuring a 51A AC-3e/AC-3 rating and suitable for motors up to 22 kW at 400V, this contactor provides dependable performance for demanding industrial motor-control applications. Its 20–33V AC/DC control voltage, 50/60 Hz frequency, and integrated varistor provide flexible coil operation and effective surge suppression. The contactor includes 1 NO + 1 NC auxiliary contacts and screw terminal connections, with a compact S2 size design.

The Siemens 3RT2036-1NB30 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 integrated varistor make it suitable for reliable installation in industrial control panels.

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: 3RT2036-1NB30

• Utilization Category: AC-3e/AC-3

• Rated Operational Current: 51A

• Motor Power: 22 kW at 400V

• Rated Operating Voltage: 400V

• 3-Pole Configuration

• Control Voltage: 20–33V AC/DC

• Control Frequency: 50/60 Hz

• Integrated Varistor

• Auxiliary Contacts: 1 NO + 1 NC

• Screw Terminal Connections

• Contactor Size: S2

• Main Circuit Insulation Voltage: 690V

• Auxiliary Circuit Insulation Voltage: 690V

• Surge Withstand Voltage: 6 kV

• Mechanical Service Life: Up to 10 million operating cycles

• Operating Ambient 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 51A AC-3e/AC-3 motor switching

• Suitable for motors up to 22 kW at 400V

• Flexible 20–33V AC/DC control voltage

• Integrated varistor helps suppress coil switching transients

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

• Robust 3-pole construction

• Secure screw terminal connections

• Compact and durable S2 design

• High insulation and surge withstand capability

• Long mechanical service life

• Suitable for demanding industrial applications

• Reliable Siemens SIRIUS performance

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RT2036-1NB30 used for?

The Siemens 3RT2036-1NB30 is a SIRIUS power contactor designed for switching and controlling three-phase motors and industrial electrical loads. It is rated at 51A AC-3e/AC-3 and supports motors up to 22 kW at 400V.

Q2. What is the rated current of 3RT2036-1NB30?

The contactor has a rated operational current of 51A in AC-3e/AC-3 applications at 400V.

Q3. What motor power can it handle?

The 3RT2036-1NB30 is suitable for motors up to 22 kW at 400V.

Q4. What is the control voltage?

The contactor operates with a 20–33V AC/DC control voltage and supports 50/60 Hz AC operation.

Q5. Does it have an integrated varistor?

Yes. The 3RT2036-1NB30 features an integrated varistor for coil surge suppression.

Q6. What auxiliary contacts are provided?

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

Q7. What type of terminals does it use?

The contactor uses screw terminal connections.

Q8. What is the contactor size?

The 3RT2036-1NB30 belongs to Size S2.

Q9. 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.

Q10. Where can Siemens 3RT2036-1NB30 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.

Q11. Why buy Siemens 3RT2036-1NB30 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.