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Siemens 3RB3036-1UB0 12.5-50A Electronic Overload Relay (S2)

Siemens 3RB3036-1UB0 Electronic Overload Relay (12.5-50A)

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ManufacturerSiemens

Part number3RB3036-1UB0

Current Range 12.5-50A

Class 10E

Size S2

Mounting Contactor Mount

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Electronic overload protection Adjustable 12.5-50A range Class 10E tripping Direct contactor mounting (S2) Screw terminals Manual/Automatic reset

Product description

The Siemens 3RB3036-1UB0 is a powerful electronic overload relay designed for robust motor protection in demanding industrial environments. It offers an adjustable current range from 12.5 to 50 A and features a Class 10E tripping characteristic for effective protection against overloads, phase unbalance, and phase failure. This model is equipped with screw terminals for main and auxiliary circuits and supports both manual and automatic reset operations.

Designed for direct mounting on Siemens 3RT2 size S2 contactors, this relay is ideal for safeguarding larger motors and machinery. Its advanced electronic design provides superior accuracy and reliability, minimizing downtime and maintenance costs.

As a veteran-owned distributor, Stanlo Automation is your trusted source for surplus industrial automation parts, including the Siemens 3RB3036-1UB0. We are committed to providing quality components and dependable service.

Technical specifications

Current Range	12.5-50A
Class	10E
Size	S2
Mounting	Contactor Mount
Terminals	Screw
Reset	Manual/Automatic
Functions	Overload, Phase Loss, Phase Unbalance

Common applications

Heavy-duty motor control

Industrial machinery

Pump stations

Manufacturing equipment

Large fans

Compatible systems

Siemens 3RT2 Size S2 Contactors

Also known as

3RB30361UB0 Siemens 12.5-50A Overload Relay SIRIUS 3RB30 Overload

Replaces / compatible with

This overload relay is designed for direct mounting on Siemens 3RT2 size S2 contactors.

Technical note

Expert tip

The internal power supply eliminates the need for a separate control voltage source for the overload relay, simplifying wiring.

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Frequently asked questions

Can the Siemens 3RB3036-1UB0 be used with different starting conditions?

Yes, the tripping class of the Siemens 3RB3036-1UB0 can be adjusted to Class 10E, which is suitable for motors with normal to heavy starting requirements. This flexibility ensures optimal protection across various operational scenarios.