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Siemens 3RB2036-1UB0 Overload Relay - 12.5-50A, Size S2, Class 10

Siemens 3RB2036-1UB0 overload relay for motor protection.

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ManufacturerSiemens

Part number3RB2036-1UB0

Current Range 12.5-50 A

Size S2

Class 10

Reset Manual/Automatic

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Motor overload protection Adjustable current setting Class 10 tripping Contactor mounting Manual and automatic reset Screw terminals

Product description

The Siemens 3RB2036-1UB0 is a Class 10 overload relay designed for robust motor protection, covering a current range of 12.5 to 50 A within a size S2 frame. It features both manual and automatic reset capabilities and is designed for direct mounting onto compatible Siemens contactors. Both the main and auxiliary circuits are equipped with screw terminals for reliable connections.

This overload relay is engineered for demanding industrial applications, providing essential protection against overcurrents and phase loss for medium to large motors. It is widely used in sectors such as manufacturing, material handling, and process industries where motor durability is critical.

Stanlo Automation, a trusted veteran-owned surplus parts distributor, ensures you can source the Siemens 3RB2036-1UB0 and other essential automation components. We provide a reliable and economical solution for your MRO needs.

Technical specifications

Current Range	12.5-50 A
Size	S2
Class	10
Reset	Manual/Automatic
Mounting	Contactor Mounting
Main Circuit Terminals	Screw
Auxiliary Circuit Terminals	Screw

Common applications

Heavy-duty motor protection

Industrial machinery

Manufacturing automation

Conveyor systems

Pump stations

Fan systems

Compatible systems

Siemens 3RT2 contactors SIRIUS 3RB3 series

Also known as

Siemens 3RB2036-1UB0 SIRIUS 3RB20 Siemens S2 overload relay

Replaces / compatible with

This phased-out product has a preferred successor: Siemens 3RB3036-1UB0. It is designed to provide reliable motor protection in various industrial applications.

Technical note

Expert tip

This is a phased-out product with a preferred successor being the 3RB3036-1UB0. Ensure proper wiring for manual or automatic reset function as needed.

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Frequently asked questions

What is the tripping class of the Siemens 3RB2036-1UB0 overload relay?

The Siemens 3RB2036-1UB0 overload relay is a Class 10 device. This means it trips within 10 seconds when operating at six times the set current, offering faster response for certain motor protection scenarios.