Product Description

Siemens SIRIUS Power Contactor AC-3e/AC-3 95A, 45kW, 400V, 3-Pole, 230V AC, Size S3 – 3RT2046-1AL20

Product Description

The Siemens 3RT2046-1AL20 is a SIRIUS 3RT2 power contactor designed for reliable switching and control of three-phase motors in industrial applications. It has a rated operational current of 95 A in AC-3e/AC-3 and supports motor ratings up to 45 kW at 400 V. The contactor features a 3-pole main circuit and Size S3 construction.

This model operates with a 230 V AC control voltage at 50/60 Hz and includes 1 NO + 1 NC auxiliary contacts for control, feedback, signaling and interlocking functions. It uses screw terminals for electrical connections, providing a practical solution for industrial control panels and motor starters.

The 3RT2046-1AL20 is suitable for motor-control applications such as pumps, compressors, fans, conveyors, HVAC equipment, machinery and industrial automation systems.

Key Features

• Genuine Siemens SIRIUS 3RT2 Power Contactor

• Article Number: 3RT2046-1AL20

• Utilization Category: AC-3e/AC-3

• Rated Operational Current: 95 A

• Motor Power: 45 kW at 400 V

• Rated Operational Voltage: 400 V

• Number of Poles: 3-pole

• Main Contacts: 3 NO

• Auxiliary Contacts: 1 NO + 1 NC

• Control Voltage: 230 V AC

• Control Frequency: 50/60 Hz

• Connection Type: Screw Terminal

• Contactor Size: S3

• Main Circuit Insulation Voltage: 1,000 V

• Auxiliary Circuit Insulation Voltage: 690 V

• Main Circuit Surge Withstand Voltage: 8 kV

• Auxiliary Circuit Surge Withstand Voltage: 6 kV

• Suitable for three-phase motor switching

• Suitable for industrial automation and control panels

Applications

The Siemens 3RT2046-1AL20 can be used for:

• Three-phase motor control

• Direct-on-line motor starters

• Motor starting and stopping

• Motor Control Centers (MCC)

• Industrial automation systems

• Pump control panels

• Compressor control

• Fan and blower control

• Conveyor systems

• HVAC applications

• Machine-control panels

• Manufacturing machinery

• OEM control cabinets

• Industrial electrical panels

• Factory automation systems

Benefits

• High 95 A AC-3e/AC-3 switching capacity

• Suitable for motors up to 45 kW at 400 V

• 230 V AC, 50/60 Hz control supply

• Integrated 1 NO + 1 NC auxiliary contacts

• Robust 3-pole construction

• Secure screw-terminal connections

• Compact and durable S3-size design

• High insulation and surge withstand capability

• Suitable for demanding industrial motor-control applications

• Reliable Siemens SIRIUS technology

• Suitable for OEM, panel-building and maintenance applications

Frequently Asked Questions

What is Siemens 3RT2046-1AL20?

The 3RT2046-1AL20 is a Siemens SIRIUS 3RT2 3-pole power contactor rated at 95 A AC-3e/AC-3 and suitable for motors up to 45 kW at 400 V. It has a 230 V AC, 50/60 Hz control voltage and 1 NO + 1 NC auxiliary contacts.

What is the AC-3 rating?

The contactor is rated at 95 A for AC-3/AC-3e applications.

What motor power can it handle?

It is suitable for motor applications up to 45 kW at 400 V.

What is the control voltage?

The control coil operates at 230 V AC, 50/60 Hz.

How many poles does 3RT2046-1AL20 have?

It is a 3-pole power contactor with 3 NO main contacts.

What auxiliary contacts are included?

The contactor includes 1 NO + 1 NC auxiliary contacts.

What type of terminals does it use?

The 3RT2046-1AL20 uses screw terminals.

What is the contactor size?

The contactor is Size S3.

What is the insulation voltage?

The rated insulation voltage is 1,000 V for the main circuit and 690 V for the auxiliary circuit.

What is the surge withstand voltage?

The rated surge withstand voltage is 8 kV for the main circuit and 6 kV for the auxiliary circuit.

Is 3RT2046-1AL20 suitable for motor applications?

Yes. It is designed for AC-3e/AC-3 motor switching and is rated for 95 A and 45 kW at 400 V.

Where can Siemens 3RT2046-1AL20 be used?

It can be used in motor control centers, industrial automation panels, pumps, compressors, fans, conveyors, HVAC systems, manufacturing machinery and industrial motor-control applications.

Is this contactor suitable for industrial control panels?

Yes. Its 95 A rating, 45 kW motor capacity, 230 V AC coil, 1 NO + 1 NC auxiliary contacts and S3 construction make it suitable for industrial motor-control and automation panels.