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Siemens 3RU2146-4KB0 Thermal Overload Relay - 57-75A, Size S3

Siemens 3RU2146-4KB0 Thermal Overload Relay

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ManufacturerSiemens

Part number3RU2146-4KB0

Type Thermal Overload Relay

Manufacturer Siemens

Part Number 3RU2146-4KB0

Current Setting 57...75 A

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Adjustable current setting Class 10 tripping Manual/automatic reset Contactor mountable Screw terminals Motor protection

Product description

The Siemens 3RU2146-4KB0 is a Size S3 thermal overload relay designed for motor protection. It offers adjustable current settings from 57 to 75 Amps with a Class 10 tripping characteristic. This relay features manual or automatic reset options and screw terminals for both main and auxiliary circuits, ensuring secure connections.

Ideal for various industrial applications, this overload relay provides essential protection against overcurrents and phase failures in motor control systems. It is commonly used in manufacturing plants, pump stations, and conveyor systems where reliable motor safeguarding is crucial.

Source your Siemens 3RU2146-4KB0 from Stanlo Automation, a veteran-owned business. We specialize in providing high-quality surplus industrial automation parts, ensuring you get the components you need with excellent service and value.

Technical specifications

Type	Thermal Overload Relay
Manufacturer	Siemens
Part Number	3RU2146-4KB0
Current Setting	57...75 A
Size	S3
Trip Class	Class 10
Reset	Manual/Automatic
Mounting	Contactor Mounting
Main Circuit Terminals	Screw
Auxiliary Circuit Terminals	Screw

Common applications

Motor control centers

Pump control

HVAC systems

Conveyor systems

Industrial machinery

Manufacturing automation

Compatible systems

Compatible with Siemens 3RT contactors

Also known as

Siemens 3RU2146-4KB0 relay 3RU2146-4KB0 overload protector Siemens S3 overload relay

Replaces / compatible with

This overload relay is designed for use with compatible Siemens contactors and motor protection systems.

Technical note

Expert tip

Ensure proper wiring of both main and auxiliary circuits using screw terminals for reliable operation and safety.

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Frequently asked questions

What is the current setting range for the Siemens 3RU2146-4KB0 overload relay?

The Siemens 3RU2146-4KB0 overload relay has an adjustable current setting range of 57 to 75 Amps. This allows for precise protection tailored to the specific motor's requirements.