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Siemens 3RU2126-4PB1 SIRIUS Thermal Overload Relay - 30-36A

Siemens 3RU2126-4PB1 Thermal Overload Relay for motor protection.

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ManufacturerSiemens

Part number3RU2126-4PB1

Adjustable Current 30-36 A

Size S0

Class 10

Mounting Stand-alone

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Thermal overload protection Phase failure sensitivity Manual or automatic reset Stand-alone installation Class 10 tripping Screw terminals

Product description

The Siemens 3RU2126-4PB1 is a versatile thermal overload relay designed for motor protection. It offers an adjustable current range from 30 to 36 Amps and operates with Class 10 tripping characteristics, ensuring protection against overloads and phase failures. This model is configured for stand-alone installation and features screw terminals for both main and auxiliary circuits, with manual or automatic reset options.

This overload relay is suitable for various industrial applications where standalone motor protection is required, such as in control panels and specialized machinery. Its design focuses on reliability and ease of installation in systems that do not utilize direct contactor mounting.

Stanlo Automation, a veteran-owned provider of surplus industrial automation parts, is your go-to source for the Siemens 3RU2126-4PB1. We offer competitive pricing and ensure quality surplus parts are available for your critical applications.

Technical specifications

Adjustable Current	30-36 A
Size	S0
Class	10
Mounting	Stand-alone
Main Circuit Terminals	Screw
Auxiliary Circuit Terminals	Screw
Reset	Manual/Automatic
Max Rated Operation Voltage	690 V AC

Common applications

Industrial control panels

Standalone motor protection

Control cabinets

Machine automation

Compatible systems

General industrial control circuits

Also known as

Siemens SIRIUS 3RU2126-4PB1 3RU21264PB1 Motor overload relay S0 stand-alone

Replaces / compatible with

This is a stand-alone overload relay and is compatible with various motor control circuits where direct contactor mounting is not used.

Technical note

Expert tip

This relay's screw-type terminals for both main and auxiliary circuits ensure a secure and reliable electrical connection in stand-alone configurations.

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Frequently asked questions

Can the Siemens 3RU2126-4PB1 overload relay be mounted directly onto a contactor?

No, the Siemens 3RU2126-4PB1 is designed for stand-alone installation, meaning it is not intended for direct mounting onto a contactor. It is ideal for applications where separate mounting is preferred or required.