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Siemens 3RB2383-4AA1 Electronic Overload Relay

Siemens 3RB2383-4AA1 Solid-State Overload Relay.

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ManufacturerSiemens

Part number3RB2383-4AA1

Rated Current 0.3-630A (adjustable)

Trip Class 5-30

Poles 3

Auxiliary Contacts 2NO+2NC

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Veteran-owned

CAGE: 9NK75

Full Motor Protection Bistable Operation Adjustable Current and Trip Class Manual/Automatic Reset 2NO+2NC Auxiliary Contacts DIN Rail Mount

Product description

The Siemens 3RB2383-4AA1 is a bistable, electronic overload protection relay designed for full motor protection. It supports adjustable current ratings from 0.3A to 630A and offers selectable trip classes from 5 to 30. This relay features manual or automatic reset and includes 2NO+2NC auxiliary contacts.

This device is crucial for protecting electric motors from damage due to overloads, phase loss, and phase unbalance. It is widely used in industrial applications across various sectors, including manufacturing, material handling, and pump systems.

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Technical specifications

Rated Current	0.3-630A (adjustable)
Trip Class	5-30
Poles	3
Auxiliary Contacts	2NO+2NC
Reset	Manual/Automatic
Mounting	DIN Rail
Series	SIRIUS 3RB23

Common applications

Motor Protection

Industrial Automation

Machine Control

Pump Systems

Conveyor Systems

Compatible systems

Contactor Sizes S00-S12 SIRIUS Motor Starters

Also known as

Siemens SIRIUS 3RB23 Overload Relay Siemens EOR Relay 3RB2383

Replaces / compatible with

This relay is designed to provide comprehensive motor protection and can replace older electromechanical overload relays or other electronic variants within the SIRIUS series.

Technical note

Expert tip

This electronic overload relay offers bistable operation and adjustable trip classes, providing flexible protection for a wide range of motor applications.

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Frequently asked questions

What is the adjustable current range for the Siemens 3RB2383-4AA1 Overload Relay?

The Siemens 3RB2383-4AA1 Overload Relay features an adjustable current response value ranging from 0.3A to 630A, allowing for precise motor protection settings. It also offers selectable trip classes from 5 to 30.