Product Description

Siemens SIRIUS Power Contactor 17A, 7.5kW, 400V, 3-Pole, 24V DC, Size S0 – 3RT2025-1BB40

Product Description

The Siemens 3RT2025-1BB40 is a reliable Power Contactor from the SIRIUS 3RT2 series, designed for switching and controlling three-phase motors and industrial electrical loads. It features an AC-3e/AC-3 rating of 17A and is suitable for motors up to 7.5 kW at 400V. The contactor operates with a 24V DC control voltage and provides 1 NO + 1 NC auxiliary contacts for control, feedback, signaling, and electrical interlocking. It features 3 main poles, screw terminal connections, and a compact S0 size design. Siemens lists the 3RT2025-1BB40 as an active SIRIUS power contactor.

The Siemens 3RT2025-1BB40 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 24V DC control voltage makes it suitable for industrial automation and control circuits using a 24V DC supply.

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: 3RT2025-1BB40

• Utilization Category: AC-3e/AC-3

• Rated Operational Current: 17A

• Motor Power: 7.5 kW at 400V

• Rated Operating Voltage: 400V

• 3-Pole Configuration

• Control Voltage: 24V DC

• Auxiliary Contacts: 1 NO + 1 NC

• Screw Terminal Connections

• Contactor Size: S0

• Rated Insulation Voltage: 690V

• Surge Withstand Voltage: 6 kV

• Front Protection: IP20

• Mechanical Service Life: Up to 10 million operating cycles

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

• Active Siemens SIRIUS product

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 17A AC-3e/AC-3 motor switching

• Suitable for motors up to 7.5 kW at 400V

• Reliable 24V DC control operation

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

• Secure screw-terminal connections

• Compact and durable S0 design

• High 690V insulation voltage

• 6kV surge withstand capability

• Long mechanical service life

• Easy integration into industrial automation systems

• Suitable for DOL starter applications

• Reliable Siemens SIRIUS performance

• Suitable for demanding industrial applications

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RT2025-1BB40 used for?

The Siemens 3RT2025-1BB40 is a SIRIUS power contactor designed for switching and controlling three-phase motors and industrial electrical loads. It is rated at 17A AC-3e/AC-3 and supports motors up to 7.5 kW at 400V.

Q2. What is the rated current of 3RT2025-1BB40?

The contactor has a rated operational current of 17A in AC-3e/AC-3 applications.

Q3. What motor power can it handle?

The 3RT2025-1BB40 is suitable for motors up to 7.5 kW at 400V.

Q4. What is the control voltage?

The contactor operates with a 24V DC control voltage.

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 3RT2025-1BB40 uses screw terminal connections.

Q7. What is the contactor size?

The 3RT2025-1BB40 belongs to Size S0.

Q8. What is the insulation voltage?

The contactor has a rated insulation voltage of 690V and a 6kV surge withstand capability.

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. Why buy Siemens 3RT2025-1BB40 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.