Product Description

Siemens SIRIUS Power Contactor 12A, 5.5kW, 400V, 3-Pole, 110V AC, Size S0 – 3RT2024-1AG20

Product Description

The Siemens 3RT2024-1AG20 is a SIRIUS 3RT2 power contactor designed for reliable switching and control of three-phase motors and industrial electrical loads. It is rated 12A for AC-3e/AC-3 applications and is suitable for motors up to 5.5kW at 400V. The contactor features a 110V AC control voltage at 50/60Hz, 3 main poles, 1 NO + 1 NC auxiliary contacts, screw terminal connections, and a compact S0 size. Siemens officially lists this exact model as an active product (PM300).

The 3RT2024-1AG20 is suitable for DOL motor starters, MCC panels, pump control systems, compressors, conveyors, HVAC equipment, industrial machinery, OEM control panels, and factory automation applications requiring a 110V AC control supply.

Key Features

• Brand: Siemens

• Product family: SIRIUS 3RT

• Model: 3RT2024-1AG20

• Utilization category: AC-3e/AC-3

• Rated operational current: 12A

• Motor rating: 5.5kW at 400V

• Main circuit: 3-pole

• Control voltage: 110V AC

• Control frequency: 50/60Hz

• Auxiliary contacts: 1 NO + 1 NC

• Terminal type: Screw terminal

• Contactor size: S0

• Rated operating voltage: up to 690V AC

• Main-circuit surge withstand: 6kV

• Auxiliary-circuit surge withstand: 6kV

• Typical mechanical service life: 10 million operating cycles

Applications

• Three-phase motor control

• DOL motor starters

• Motor Control Centers (MCC)

• Industrial automation panels

• Pump control systems

• Compressor systems

• Conveyor systems

• HVAC equipment

• Manufacturing machinery

• OEM electrical panels

• Machine automation

• Factory electrical systems

Benefits

• Reliable 12A AC-3e/AC-3 motor switching

• Suitable for motors up to 5.5kW at 400V

• 110V AC, 50/60Hz control supply

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

• Secure screw-terminal connections

• Compact S0 construction

• 6kV surge withstand capability

• Long mechanical service life

• Suitable for DOL starter assemblies

• Reliable Siemens SIRIUS technology

• Easy integration into industrial control panels

Frequently Asked Questions

Q1. What is Siemens 3RT2024-1AG20 used for?

The 3RT2024-1AG20 is a Siemens SIRIUS power contactor used for switching and controlling three-phase motors and industrial electrical loads.

Q2. What is the rated current?

The contactor has an AC-3e/AC-3 rated operational current of 12A at 400V.

Q3. What motor power can it handle?

It is suitable for three-phase motors up to 5.5kW at 400V.

Q4. What is the control voltage?

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

Q5. How many auxiliary contacts are provided?

It provides 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 3RT2024-1AG20 uses screw terminal connections.

Q7. What is the contactor size?

The contactor is Size S0.

Q8. What is the surge withstand capability?

The specified surge withstand voltage is 6kV for the main circuit and 6kV for the auxiliary circuit.

Q9. Can it be used in a DOL starter?

Yes. It can be used as the main contactor in a DOL motor starter when paired with an appropriately selected motor-protection device.

Q10. Is Siemens 3RT2024-1AG20 an active product?

Yes. Siemens Industry Mall currently identifies 3RT2024-1AG20 as PM300: Active Product.