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Siemens 3SB023MKB Motor Contactor — 7.5kW 230V

Siemens 3SB023MKB 3-pole motor contactor.

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ManufacturerSiemens

Part number3SB023MKB

Number of Poles 3

Coil Voltage 230V AC

Power Rating 7.5 kW (AC-3)

Auxiliary Contacts Typically 1 NO + 1 NC

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12-month warranty

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Veteran-owned

CAGE: 9NK75

3-pole design for 3-phase loads 7.5kW power rating 230V AC coil voltage Integrated auxiliary contacts Durable construction Reliable motor switching

Product description

The Siemens 3SB023MKB is a 3-pole motor contactor designed for switching three-phase loads, primarily electric motors. It is rated for 7.5kW of power and features a 230V AC coil. This model typically includes auxiliary contacts necessary for integration into control circuits.

As a key component in industrial power distribution and motor management, this contactor ensures safe and reliable operation of machinery. It's widely employed in automation systems, machine tools, and HVAC applications requiring robust motor control.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3SB023MKB. Secure essential control components from Stanlo Automation, benefiting from our competitive pricing and efficient delivery.

Technical specifications

Number of Poles	3
Coil Voltage	230V AC
Power Rating	7.5 kW (AC-3)
Auxiliary Contacts	Typically 1 NO + 1 NC
Mounting	DIN Rail / Screw Mount
Series	3SB

Common applications

Motor control applications

Industrial machinery

Manufacturing

HVAC systems

Pump and fan control

Machine tools

Compatible systems

Standard motor control circuits 230V AC control power Thermal overload relays PLC control systems

Also known as

Siemens Motor Starter 3SB023MKB Contactor Siemens 3-Phase Contactor

Replaces / compatible with

This contactor serves as a direct replacement for other Siemens 3SB series contactors or equivalent components rated for 7.5kW with a 230V AC coil. Compatible with standard motor control circuits.

Technical note

Expert tip

Ensure the correct auxiliary contact configuration (NO/NC) is selected based on your control logic requirements before installation.

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Frequently asked questions

What is the application for the Siemens 3SB023MKB motor contactor?

The Siemens 3SB023MKB is a 3-pole motor contactor designed for switching three-phase loads up to 7.5kW. It is commonly used in industrial settings for starting, stopping, and controlling electric motors in machinery and automation systems.