Siemens 3MT70402AA100AL2 Power Contactor – AC-3, 40 A, 400 V

The Siemens 3MT70402AA100AL2 is a SINOVA 3MT7 power contactor designed for switching and controlling electrical loads in industrial motor control applications. The 3MT7 series is Siemens' 3-pole power contactor family, and the 40 A AC-3 version is intended for motor switching applications.

With an AC-3 operational current of 40 A at 400 V, this contactor is suitable for industrial motor starters, control panels, machinery and automation systems. The product configuration supplied for this SKU includes 3 main poles, 1 NO auxiliary contact and a 230 V AC, 50/60 Hz coil, with screw connections for the main and auxiliary circuits.

The contactor is designed for applications where reliable switching of three-phase motors and other compatible industrial loads is required. Its compact contactor construction makes it suitable for integration into motor control panels and machine-control assemblies.

Key Features

• Siemens 3MT70402AA100AL2 power contactor
• SINOVA 3MT7 series
• 3-pole power contactor
• AC-3 operational current: 40 A at 400 V
• 1 NO auxiliary contact
• 230 V AC, 50/60 Hz coil
• Screw connection for main circuit
• Screw connection for auxiliary circuit
• Suitable for industrial motor control
• Suitable for motor starter assemblies
• Suitable for electrical control panels

Applications

The Siemens 3MT70402AA100AL2 can be considered for:

• Three-phase motor control
• Industrial motor starters
• Electrical control panels
• Industrial machinery
• Conveyor systems
• Pumps and pumping equipment
• Fans and blowers
• Compressors
• Production machinery
• OEM machine control
• Industrial automation systems

Benefits

The 40 A AC-3 rating at 400 V makes this contactor suitable for switching compatible motor loads in industrial applications. Its 3-pole configuration provides switching of three-phase motor circuits, while the auxiliary contact can be used for control, interlocking or status-related functions.

The screw-terminal connection supports practical panel wiring and maintenance. The contactor can be integrated with suitable overload relays and other motor-protection components to create a complete motor starter solution.

Suitable for Customers Across India

SB Smart supplies industrial electrical and automation products across India, including Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Ghaziabad, Manesar, Mumbai, Pune, Ahmedabad, Vadodara, Surat, Jaipur, Chandigarh, Ludhiana, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Indore and Lucknow, along with other major industrial locations.

The Siemens 3MT70402AA100AL2 can be considered by panel builders, OEMs, electrical contractors, system integrators, machine manufacturers, maintenance teams and industrial automation companies looking for Siemens power contactors.

FAQs

1. What is Siemens 3MT70402AA100AL2?
It is a Siemens SINOVA 3MT7 power contactor for industrial switching and motor-control applications.

2. What is the AC-3 rating of 3MT70402AA100AL2?
The supplied specification indicates an AC-3 operational current of 40 A at 400 V. Siemens documentation also identifies the 40 A 3MT7 configuration as an AC-3 motor contactor.

3. What is the coil voltage?
The specified configuration has a 230 V AC, 50/60 Hz coil.

4. How many main poles does this contactor have?
The product is a 3-pole power contactor.

5. Does the contactor have an auxiliary contact?
Yes. This configuration includes 1 NO auxiliary contact.

6. Where can Siemens 3MT70402AA100AL2 be used?
It can be considered for compatible three-phase motor starters, control panels, industrial machinery, pumps, conveyors, fans, compressors and other motor-control applications.

7. Can I buy Siemens 3MT70402AA100AL2 from SB Smart?
SB Smart supplies Siemens industrial electrical products across India, subject to product availability and order confirmation.