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Siemens 3SB02-K7R Motor Contactor — 7.5kW 230V

Siemens 3SB02-K7R 3-pole motor contactor.

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ManufacturerSiemens

Part number3SB02-K7R

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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3-pole configuration 7.5kW switching capacity 230V AC coil Integrated auxiliary contacts Robust design for industrial use Reliable motor switching

Product description

The Siemens 3SB02-K7R is a 3-pole motor contactor designed for switching three-phase loads, typically electric motors. It is rated for a power output of 7.5kW and operates with a 230V AC coil voltage. This contactor often includes auxiliary contacts for control circuit integration.

Motor contactors like the 3SB02-K7R are fundamental components in industrial motor control applications, providing reliable switching for starting, stopping, and protecting motors in various machinery. They are essential in manufacturing, material handling, and other industrial automation systems.

Stanlo Automation, a veteran-owned surplus parts distributor, carries the Siemens 3SB02-K7R. Source your industrial control components from Stanlo Automation for competitive prices and dependable service, ensuring your projects stay on schedule.

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
Standards	IEC, UL, CSA

Common applications

Motor control

Industrial machinery

Manufacturing equipment

Pump control

Fan control

Conveyor systems

Compatible systems

Standard motor control circuits Overload relays for thermal protection PLC control systems

Also known as

Siemens Motor Starter 3SB02-K7R Contactor Siemens 3-Phase Contactor

Replaces / compatible with

This contactor replaces older Siemens 3SB series contactors or other brands with similar ratings (7.5kW, 230V coil, 3-pole). Compatible with standard motor control circuits.

Technical note

Expert tip

Ensure the coil voltage of the 3SB02-K7R matches the control circuit voltage (230V AC) to prevent damage or malfunction.

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Frequently asked questions

What is the typical power rating and coil voltage for the Siemens 3SB02-K7R contactor?

The Siemens 3SB02-K7R motor contactor is rated for a power output of 7.5 kW (at AC-3 utilization category) and operates with a 230V AC coil voltage. This makes it suitable for controlling medium-sized three-phase motors.