SIEMENS 3RB2066-1GC2 Overload Relay E04

SIEMENS 3RB2066-1GC2 Overload Relay E04

Product Description

The SIEMENS 3RB2066-1GC2 is a high-performance SIRIUS electronic overload relay designed for reliable motor protection in industrial automation and motor control systems. This solid-state overload relay provides advanced protection against overload, phase failure, and phase imbalance for three-phase motors operating in demanding environments.

The relay features an adjustable current range from 55 A to 250 A and is suitable for contactor mounting or standalone installation. With Class 10E tripping characteristics, it ensures precise and dependable motor protection while minimizing downtime and improving operational safety. :contentReference[oaicite:0]{index=0}

Main Features

• Original SIEMENS SIRIUS electronic overload relay
• Model: 3RB2066-1GC2
• Adjustable current range: 55...250 A
• Size: S10 / S12
• Class 10E tripping characteristic
• Solid-state electronic protection technology
• Suitable for contactor mounting or standalone installation
• Main circuit: busbar connection
• Auxiliary circuit: screw terminal connection
• Manual and automatic reset function
• Integrated phase failure and phase imbalance protection
• Reliable protection for three-phase motors

Applications

The SIEMENS 3RB2066-1GC2 overload relay is widely used in industrial motor control applications where accurate and reliable motor protection is required.

• Industrial motor starters
• Conveyor systems
• Pumps and compressors
• Ventilation and HVAC systems
• Machine tools
• Production and automation equipment
• Power distribution panels
• Industrial control cabinets

Technical Specifications

• Manufacturer: SIEMENS
• Series: SIRIUS 3RB
• Part Number: 3RB2066-1GC2
• Product Type: Electronic overload relay
• Current Setting Range: 55...250 A
• Tripping Class: 10E
• Contactor Size Compatibility: S10 / S12
• Main Circuit Connection: Busbar connection
• Auxiliary Circuit Connection: Screw terminals
• Reset Mode: Manual / Automatic
• Protection Class: IP20
• Mounting Type: Contactor mounting or standalone installation
• Rated Insulation Voltage: 1000 V
• Net Weight: approx. 1.6 kg

Advantages

The SIEMENS 3RB2066-1GC2 offers precise electronic motor protection with improved reliability compared to traditional thermal overload relays. Its advanced solid-state technology reduces maintenance requirements, enhances protection accuracy, and helps increase the operational lifespan of industrial motors and control equipment. :contentReference[oaicite:1]{index=1}