Product Description

Siemens SIRIUS Traction Contactor 17A, 7.5kW, 400V, 3-Pole, 110V DC, Size S0 – 3RT2025-2XF400LA2

Product Description

The Siemens 3RT2025-2XF400LA2 is a reliable Traction Contactor from the SIRIUS 3RT2 series, designed for switching and controlling three-phase motors and demanding 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 110V DC control voltage over an extended 0.7–1.25 × Uc operating range, with an integrated varistor and electronic operating mechanism. It provides 1 NO + 1 NC auxiliary contacts, 3 main poles, spring-loaded terminal connections, and a compact S0 size design. Siemens specifies an upright mounting position for this version.

The Siemens 3RT2025-2XF400LA2 is suitable for traction applications, industrial motor control, Motor Control Centers (MCC), DOL starters, conveyor systems, machinery, automation panels, and other applications requiring reliable DC-controlled switching. Its extended control-voltage range and integrated varistor provide dependable operation in industrial environments with variable DC control supply conditions.

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 Traction Contactor

• Model: 3RT2025-2XF400LA2

• 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: 110V DC

• Control Voltage Range: 0.7–1.25 × Uc

• Integrated Varistor

• Electronic/Solid-State Operating Mechanism

• Auxiliary Contacts: 1 NO + 1 NC

• Spring-Loaded Terminal Connections

• Contactor Size: S0

• Upright Mounting Position

• Rated Insulation Voltage: 690V

• Surge Withstand Voltage: 6 kV

• Mechanical Service Life: Up to 10 million operating cycles

• Suitable for demanding traction and industrial applications

Applications

• Traction Systems

• Industrial Motor Control

• Motor Control Centers (MCC)

• DOL Motor Starters

• Industrial Automation Panels

• Conveyor Systems

• Manufacturing Machinery

• Pump Control Systems

• OEM Electrical Panels

• Machine Control Panels

• Factory Automation

• Industrial Switching Applications

Benefits

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

• Suitable for motors up to 7.5 kW at 400V

• Extended 110V DC control range

• Integrated varistor helps suppress switching voltage peaks

• Electronic operating mechanism supports reliable switching

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

• Spring-loaded terminals provide secure connections

• Compact S0 design saves panel space

• High 690V insulation voltage

• 6kV surge withstand capability

• Long mechanical service life

• Suitable for demanding traction and industrial applications

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RT2025-2XF400LA2 used for?

The Siemens 3RT2025-2XF400LA2 is a SIRIUS traction contactor designed for switching 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 3RT2025-2XF400LA2?

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

Q3. What motor power can it handle?

The 3RT2025-2XF400LA2 is suitable for motors up to 7.5 kW at 400V.

Q4. What is the control voltage?

The contactor operates with a 110V DC control voltage and supports an extended operating range of 0.7–1.25 × Uc.

Q5. Does it have an integrated varistor?

Yes. The 3RT2025-2XF400LA2 features an integrated varistor for suppression of voltage peaks during coil switching.

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 spring-loaded terminal connections.

Q8. What is the contactor size?

The 3RT2025-2XF400LA2 belongs to Size S0.

Q9. Is it suitable for traction applications?

Yes. It is specifically designated by Siemens as a traction contactor, making it suitable for traction and other demanding industrial switching applications.

Q10. Why buy Siemens 3RT2025-2XF400LA2 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.