Product Description

Siemens Power Contactor, AC-3, 16 A, 7.5 kW / 400 V, 1 NO Auxiliary Contact, AC 110V 50Hz / 120V 60Hz Coil, 3-Pole, Screw Terminals, S00 Size - 3RT2018-1AK61

Product Description

The Siemens 3RT2018-1AK61 is a reliable SIRIUS power contactor designed for switching and controlling three-phase motors in industrial and commercial electrical systems. It is rated for AC-3e/AC-3 applications at 16 A and is suitable for motor loads up to 7.5 kW at 400 V. The contactor features a 110 V AC control coil at 50 Hz / 120 V AC at 60 Hz, 3 main poles, 1 NO auxiliary contact, screw terminal connections, and a compact S00 size. These specifications are confirmed by Siemens.

The Siemens SIRIUS 3RT2018-1AK61 is suitable for DOL motor starters, motor control panels, pumps, compressors, conveyors, HVAC equipment, machine tools, industrial automation, and factory electrical systems. Its compact S00 construction helps optimize panel space while providing dependable switching for three-phase motor control applications.

The 110 V AC / 120 V AC control coil allows integration with suitable industrial AC control circuits. When paired with a suitably rated Siemens thermal overload relay or motor protection device, the contactor can form part of a complete motor starter and protection solution.

Key Features

• Brand: Siemens

• Product Family: SIRIUS 3RT

• Model: 3RT2018-1AK61

• Utilization Category: AC-3e/AC-3

• Rated Operational Current: 16 A

• Motor Rating: 7.5 kW at 400 V

• Main Poles: 3-Pole

• Control Coil: 110 V AC at 50 Hz / 120 V AC at 60 Hz

• Auxiliary Contact: 1 NO

• Terminal Connection: Screw Terminal

• Contactor Size: S00

• Product Type: Power Contactor

• Application: Three-phase motor switching and control

Applications

The Siemens 3RT2018-1AK61 is suitable for:

• Three-phase motor control

• DOL motor starter applications

• Industrial motor control panels

• Pump control systems

• Compressor systems

• Conveyor systems

• HVAC equipment

• Machine tools

• Industrial automation

• Factory electrical panels

• OEM control panels

• Motor switching applications

Benefits

• Reliable 16 A AC-3e/AC-3 motor switching

• Suitable for motors up to 7.5 kW at 400 V

• 110 V AC / 120 V AC control coil

• 1 NO auxiliary contact for control and signalling

• Secure screw-terminal connections

• Compact S00 construction

• Suitable for industrial automation and control panels

• Easy integration with compatible Siemens motor protection devices

• Space-efficient solution for motor starter applications

• Reliable Siemens SIRIUS technology

Why Choose Siemens 3RT2018-1AK61?

The Siemens SIRIUS 3RT2018-1AK61 provides dependable switching for industrial motor-control applications. Its 16 A AC-3 rating, 7.5 kW motor capacity at 400 V, 110 V AC / 120 V AC coil, 3-pole configuration, 1 NO auxiliary contact, screw terminals, and S00 compact design make it suitable for a wide range of motor starter, electrical panel, and automation requirements. Siemens identifies this model as a SIRIUS power contactor.

At SB Smart, Faridabad, we supply genuine Siemens SIRIUS power contactors, thermal overload relays, motor protection relays, motor protection circuit breakers, soft starters, MCCBs, MCBs, and industrial automation products at competitive prices. We provide GST invoices, technical assistance, bulk-order support, secure packaging, and delivery across Faridabad, Delhi NCR, and major cities throughout India.

Whether you are sourcing a Siemens contactor for a motor starter, electrical control panel, industrial automation project, replacement requirement, or bulk procurement, SB Smart provides product assistance and nationwide supply support.

Frequently Asked Questions

Q1. What is Siemens 3RT2018-1AK61?
It is a Siemens SIRIUS power contactor designed for switching and controlling three-phase motors and industrial electrical loads.

Q2. What is the rated current?
The contactor is rated at 16 A for AC-3e/AC-3 applications.

Q3. What motor power can it handle?
It is suitable for motor applications up to 7.5 kW at 400 V.

Q4. What is the control coil voltage?
It uses 110 V AC at 50 Hz and 120 V AC at 60 Hz.

Q5. How many main poles does it have?
It has 3 main poles for three-phase motor switching.

Q6. Does it have an auxiliary contact?
Yes. It has 1 NO auxiliary contact.

Q7. What type of terminals does it use?
The Siemens specification lists screw terminal connections.

Q8. What is the contactor size?
It is a compact S00-size Siemens SIRIUS contactor.

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 a suitably rated motor-protection device.

Q10. Where can I buy Siemens contactors in India?
SB Smart, Faridabad supplies Siemens SIRIUS contactors and industrial electrical and automation products with GST billing, technical assistance, bulk-order support, secure packaging, and delivery across India.