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Siemens 3RB1036-1UB0 Overload Relay - 13-50A

Siemens 3RB1036-1UB0 overload relay for motor protection (13-50A, Size S2).

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ManufacturerSiemens

Part number3RB1036-1UB0

Current Range 13-50 A

Class 10

Size S2

Mounting Contactor Mount

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Motor protection Adjustable current Size S2 Class 10 tripping Contactor mountable Manual/Automatic reset

Product description

The Siemens 3RB1036-1UB0 is a Size S2 thermal overload relay for motor protection, covering an adjustable current range from 13 to 50 A with a Class 10 tripping characteristic. It is designed for direct mounting onto Siemens contactors, providing a compact motor starter solution. The relay features screw terminals for both main and auxiliary circuits and includes manual or automatic reset functionality.

This overload relay is essential for protecting larger industrial motors against overcurrents, phase unbalance, and other thermal stresses. It is commonly applied in heavy-duty industrial applications such as large pumps, crushers, industrial fans, and machine tools.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3RB1036-1UB0. We ensure availability of critical components, providing cost-effective solutions for your motor control needs.

Technical specifications

Current Range	13-50 A
Class	10
Size	S2
Mounting	Contactor Mount
Reset	Manual/Automatic
Main Circuit Terminals	Screw
Aux Circuit Terminals	Screw
Manufacturer	Siemens

Common applications

Large motor control

Industrial pumps

Crushers

Heavy-duty fans

Machine tools

Manufacturing equipment

Compatible systems

Siemens 3RB contactors (Size S2)

Also known as

Siemens 3RB1036 overload relay Siemens S2 overload relay

Replaces / compatible with

This Size S2 overload relay is designed for compatibility with specific Siemens 3RB contactors for robust motor protection. Refer to Siemens documentation for precise compatibility details.

Technical note

Expert tip

When installing the 3RB1036-1UB0, ensure it is correctly coupled with the specified Siemens contactor size to prevent damage and ensure accurate operation for motor protection.

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Frequently asked questions

What is the size designation for the Siemens 3RB1036-1UB0 overload relay?

The Siemens 3RB1036-1UB0 overload relay is designated as Size S2. This size rating indicates its physical dimensions and its capacity to be paired with appropriately sized Siemens contactors for motor protection.