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Siemens 3RB3036-1WB0 SIRIUS Electronic Overload Relay

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ManufacturerSiemens

Part number3RB3036-1WB0

Current Range 20-80 A

Trip Class 10E

Size S2

Mounting Contactor Mounting

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Electronic Overload Protection Adjustable Current Setting Manual/Automatic Reset Direct Contactor Mounting Class 10E Tripping Phase Loss Protection

Product description

The Siemens 3RB3036-1WB0 is a high-capacity electronic overload relay designed for demanding motor protection applications. It features an adjustable current range of 20 to 80 A and a Class 10E tripping characteristic, ensuring rapid protection for motors with heavy starting loads. This relay is designed for direct mounting onto Siemens 3RT2 Size S2 contactors, utilizing screw terminals for both main and auxiliary circuits.

This overload relay is suitable for a wide range of industrial applications, including large motor control systems, industrial machinery, and heavy-duty equipment. It provides essential protection against overload, phase imbalance, and phase failure.

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Technical specifications

Current Range	20-80 A
Trip Class	10E
Size	S2
Mounting	Contactor Mounting
Main Circuit Terminals	Screw
Auxiliary Circuit Terminals	Screw
Reset	Manual/Automatic
Poles	3
Voltage Rating	690V AC

Common applications

Large Motor Control

Industrial Machinery

Heavy-Duty Equipment

Manufacturing

Automation Systems

Compatible systems

Siemens 3RT2035 Siemens 3RT2036 Siemens 3RT2037 Siemens 3RT2038

Also known as

Siemens SIRIUS Overload Relay 3RB3036-1WB0

Replaces / compatible with

Compatible with Siemens 3RT2 Size S2 contactors.

Technical note

Expert tip

This Size S2 overload relay is designed for direct mounting on Siemens 3RT2 Size S2 contactors, offering robust motor protection.

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Frequently asked questions

What is the current range and trip class for the Siemens 3RB3036-1WB0 overload relay?

The Siemens 3RB3036-1WB0 overload relay has an adjustable current range of 20 to 80 Amps. Its Class 10E tripping characteristic ensures it responds quickly to overcurrent situations, protecting motors with heavy starting requirements.