Siemens Circuit breaker system protection, screw, size S0

Product Overview

The SIRIUS 3RV2 circuit breaker is a high-performance, thermal-magnetic motor protection circuit breaker designed for system protection with full UL 489 and CSA C22.2 No. 5-02 approval. This frame size S0 circuit breaker features thermal overload release at 20A and short-circuit release at 260A with screw terminal connections and standard switching capacity.

Key Features

This circuit breaker is optimized for system protection according to UL 489/CSA C22.2 No. 5 standards for comprehensive protection of systems and loads in UL-configured plants. Features thermomagnetic trip protection with high breaking capacity and extended operational life for reliable motor and system protection in demanding industrial applications.

Technical Specifications

• Frame Size: S0
• Thermal Overload Release: 20A (fixed)
• Short-Circuit Release: 260A
• Number of Poles: 3-pole
• Rated Current: 20A
• Rated Voltage: Up to 690V AC
• Operating Frequency: 50-60Hz
• Power Rating: 15kW
• Interrupt Rating: 4kA
• Trip Type: Thermomagnetic
• Connection Type: Screw terminal
• Control Element: Toggle switch operation
• Degree of Protection: IP00/IP20
• Weight: 0.518kg
• Dimensions: 144 x 45 x 97mm (H x W x D)
• Wire Range: 14 to 10 AWG

Breaking Capacity & Performance

• Short-Circuit Breaking Capacity: 4kA interrupt rating
• Electrical Durability: 100,000 operations with load
• Mechanical Durability: 100,000 operations at no load
• Operating Temperature: -20°C to +60°C
• Vibration Resistance: Industrial grade construction
• Switching Capacity: Standard switching capacity for reliable operation

Approvals & Standards

• UL 489: Circuit breaker approval for system protection
• CSA C22.2 No. 5-02: Canadian standards approval
• IEC 60529: Enclosure protection standards
• IEC 61140: Protection against electric shock
• IEC 60068-2-27: Environmental testing standards
• IEC 81346-2: Industrial systems structuring principles
• SN 31920: Swiss national standards
• IEC 61508: Functional safety standards
• UL Approved: Listed for North American markets

Design & Construction

Features robust S0 frame construction with thermomagnetic protection combining thermal overload and magnetic short-circuit protection. The device includes screw terminals for secure connections and toggle switch operation for reliable switching in industrial environments.

Applications

This circuit breaker is designed for comprehensive system protection in industrial applications, including:

• Motor protection for industrial motors up to 20A
• System protection in UL-configured plants
• Load feeder protection with medium-high current requirements
• Short-circuit protection of starter combinations
• Plant and equipment protection systems
• Industrial automation and control systems
• Power distribution in manufacturing facilities

Mounting & Installation

• Mounting: DIN rail mounting, snap-on, and threaded mounting options
• Installation: Fixed installation technology with multiple mounting options
• Terminal Configuration: Screw terminals for main circuit
• Wire Range: 14 to 10 AWG wire compatibility
• Mounting Position: Any mounting position suitable
• Panel Integration: Suitable for control panel installation

Compliance & Certifications

• Country of Origin: Germany
• EAN: 4011209767683
• UPC: 040892934861
• RoHS Compliance: Since 01.10.2009
• WEEE Compliance: Yes
• REACH Regulation: Compliant with current substance restrictions
• Product Class: A: Standard stock item

Operating Characteristics

• Trip Characteristic: Thermomagnetic protection
• Thermal Protection: Overload protection at 20A
• Magnetic Protection: Short-circuit protection at 260A
• Response Time: Fast-acting protection for system safety
• Reset Function: Manual reset after trip operation
• Indication: Visual trip indication for maintenance

Environmental Considerations

The device is designed for industrial environments and includes environmental product declarations. It meets WEEE take-back obligations and complies with RoHS substance restrictions for safe disposal and environmental protection.

Power & Load Specifications

• Maximum Power: 15kW at rated voltage
• Load Types: Suitable for motor loads, resistive loads, and mixed loads
• Starting Current: Capable of handling motor starting currents
• Coordination: Suitable for coordination with other protection devices
• Selectivity: Designed for selective protection coordination

Download existing graphical data for this product:

• Technical Datasheet (PDF)
• CAD Models and Technical Drawings
• Product Documentation
• Environmental Product Declaration