Siemens 3RB22

Elektronisches Überlastrelais 3RB22
Solid-state overload relay 3RB23
Relais de surcharge electronique
Relé electronico di sobrecarga
Relè elettronico di sovraccarica
Relé de sobrecarga electrónico
Betriebsanleitung / Operating Instructions /
Instructions de service / Instructivo /
Istruzioni operative/ Instruções de Serviço
Bestell-Nr. / Order No. / N° de réf. / Referencia / N. di ordinazione /
N.º de Referência: 3ZX1012-0RB22-1AA1
08/2006
GWA 4NEB 969 1645-10 DS 03 Last update: 24 August 2006
PTB 05 ATEX 3022 II (2) GD

Siemens 3RB22 Specifications

General

Brand	Siemens
Model	3RB22
Category	Relays
Language	English

Summary

Device Description

Overload Protection Overview

The relay compares momentary motor current with set value and releases if necessary.

Thermistor Protection Function

PTCs in motor winding measure temperature. Relay trips if temperature is exceeded.

Installation

Mounting Methods

Describes snap-on mounting to 35 mm rail and screw mounting with push-in lugs.

Connection

Connection Diagram and Details

Shows device circuit diagram and main current connection for single-phase operation.

Operation

Setting Current and Tripping Category

Adjusting motor current (Ie) and trip class (CLASS) using rotary buttons.

Thermistor Protection Operation

Details activation, deactivation, and status indication for thermistor protection.

Device Status Indicators

Explains status indications for ready, fault, thermistor, and overload conditions.

Error Codes and Troubleshooting

Lists error codes and their corresponding descriptions and remedies.

Testing Procedures

Describes LED test, configuration test, internal tests, and relay test phases.

Reset Functionality

Explains reset methods for overload, thermistor, and ground fault trips.

Technical Data

Regulations and EMC Compliance

Lists relevant regulations and electromagnetic compatibility standards.

Electrical and Environmental Specifications

Covers supply voltage, ambient temperature, storage temperature, and contact equipment.

Switching Capacity Details

Specifies AC-15 and DC-13 switching capacities and UL/CSA ratings.

Protection Features and Data

Details short-circuit, thermistor, and ground-fault protection parameters.

Optional Analog Output Specifications

Describes the analog output functionality, characteristics, and technical data.