Siemens SIRIUS Power Contactor 17A, 7.5kW, 400V, 3-Pole, 110V AC, Size S0 – 3RT2025-1AG20

Product Description

The Siemens 3RT2025-1AG20 is a SIRIUS 3RT power contactor designed for reliable switching and control of three-phase motors and industrial electrical loads. It has an AC-3e/AC-3 rating of 17A and is suitable for motors up to 7.5 kW at 400V. The contactor features a 110V AC control voltage at 50/60 Hz, 3 main poles, 1 NO + 1 NC auxiliary contacts, screw terminal connections, and a compact S0 size. Siemens currently lists this exact model as an active product (PM300).

The 3RT2025-1AG20 is suitable for motor starters, MCC panels, industrial automation systems, pumps, compressors, conveyors, HVAC equipment, manufacturing machinery, OEM control panels, and other applications requiring a 110V AC control circuit.

Key Features

• Brand: Siemens

• Product family: SIRIUS 3RT

• Model: 3RT2025-1AG20

• Utilization category: AC-3e/AC-3

• Rated operational current: 17A

• Motor rating: 7.5 kW at 400V

• Rated operating voltage: 400V

• Main contacts: 3-pole

• Control voltage: 110V AC

• Control frequency: 50/60 Hz

• Auxiliary contacts: 1 NO + 1 NC

• Terminal type: Screw terminal

• Contactor size: S0

• Main-circuit surge withstand: 6 kV

• Suitable for industrial motor switching

• Siemens product status: Active Product (PM300)

Applications

• Three-phase motor control

• DOL motor starters

• Motor Control Centers (MCC)

• Industrial automation panels

• Pump control panels

• Compressor systems

• Conveyor systems

• HVAC equipment

• Manufacturing machinery

• OEM control panels

• Machine automation

• Factory electrical systems

Benefits

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

• Suitable for motors up to 7.5 kW at 400V

• 110V AC, 50/60 Hz control supply

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

• Secure screw-terminal connections

• Compact S0 design for efficient panel installation

• Suitable for DOL motor starter assemblies

• Designed for industrial switching applications

• Reliable Siemens SIRIUS technology

Frequently Asked Questions

Q1. What is Siemens 3RT2025-1AG20 used for?

The 3RT2025-1AG20 is a Siemens SIRIUS power contactor used for switching and controlling three-phase motors and industrial electrical loads. It is rated 17A AC-3e/AC-3 and supports motors up to 7.5 kW at 400V.

Q2. What is the rated current of 3RT2025-1AG20?

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

Q3. What motor power can it handle?

It is suitable for motors up to 7.5 kW at 400V.

Q4. What is the control voltage?

The contactor operates with a 110V AC control voltage at 50/60 Hz.

Q5. How many auxiliary contacts are provided?

The contactor 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 3RT2025-1AG20 uses screw terminal connections.

Q7. What is the contactor size?

The contactor is Size S0.

Q8. Can it be used in a DOL starter?

Yes. It can be incorporated into a DOL motor starter together with a suitably selected motor protection device.

Q9. Is Siemens 3RT2025-1AG20 an active product?

Yes. Siemens Industry Mall currently identifies 3RT2025-1AG20 as PM300: Active Product.

Q10. Why choose the Siemens 3RT2025-1AG20?

It combines a 17A AC-3e/AC-3 rating, 7.5 kW motor capacity, 110V AC control voltage, 3-pole switching, 1 NO + 1 NC auxiliary contacts, screw terminals, and S0 construction, making it suitable for a wide range of industrial motor-control applications.