Siemens Circuit breaker for system protection, screw, size S0, 286A Part number 3RV2721-4CD10

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 22A and short-circuit release at 286A 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 Class 10 thermal overload protection, high breaking capacity, and rotary handle operation with lockout capability for enhanced safety and reliability.

Technical Specifications

• Frame Size: S0
• Thermal Overload Release: 22A (fixed)
• Short-Circuit Release: 286A
• Number of Poles: 3-pole (3P3d)
• Rated Current: 22A
• Rated Voltage: Up to 690V AC
• Operating Frequency: 50-60Hz
• Rated Impulse Voltage: 6kV
• Rated Insulation Voltage: 690V
• Trip Type: Thermomagnetic
• Connection Type: Screw-clamp terminals
• Control Element: Rotary knob/handle with ON/OFF operation and lockout
• Degree of Protection: IP20
• Weight: 0.516kg
• DIN Rail Width: 45mm

Power Ratings

• 5.5kW at 230V AC
• 11kW at 400V AC
• 11kW at 500V AC
• 18.5kW at 690V AC

Horsepower Ratings

• 1.5HP at 110V/120V AC (single-phase)
• 3HP at 230V AC (single-phase)
• 5HP at 200/208V AC (3-phase)
• 7.5HP at 220V/230V AC (3-phase)
• 15HP at 460V/480V AC (3-phase)

Breaking Capacity & Performance

• Ultimate Short-Circuit Breaking Capacity (Icu):
  • 100kA at 240V AC
  • 55kA at 400V AC
  • 10kA at 500V AC
  • 4kA at 690V AC
• UL/CSA Breaking Rating:
  • 50kA at 240V AC
  • 50kA at 480Y/277V AC
• Electrical Durability: Extended operational life with load
• Mechanical Durability: High-reliability switching mechanism
• Operating Temperature: -20°C to +60°C

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-clamp terminals for secure connections and rotary handle operation with lockout capability for enhanced safety during maintenance operations.

Applications

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

• Motor protection for industrial motors up to 22A
• System protection in UL-configured plants
• Load feeder protection with high current requirements
• Short-circuit protection of starter combinations
• Plant and equipment protection systems
• Industrial automation and control systems
• Power distribution in manufacturing facilities
• IE3/IE4 motor applications

Mounting & Installation

• Mounting: DIN rail mounting (45mm width)
• Installation: Fixed installation technology with snap-on capability
• Terminal Configuration: Screw-clamp connections for main circuit
• Wire Range: Standard industrial wire connections
• Mounting Position: Any mounting position suitable
• Panel Integration: Suitable for control panel installation

Compliance & Certifications

• Country of Origin: Germany
• EAN: 4011209767690
• UPC: 040892934878
• RoHS Compliance: Since 01.10.2009
• WEEE Compliance: Yes
• REACH Regulation: Compliant with current substance restrictions
• Product Class: A: Standard stock item

Operating Characteristics

• Thermal Overload Class: Class 10
• Trip Characteristic: Thermomagnetic protection
• Thermal Protection: Overload protection at 22A
• Magnetic Protection: Short-circuit protection at 286A
• Response Time: Fast-acting protection for system safety
• Reset Function: Manual reset after trip operation
• Indication: Visual trip indication for maintenance
• Lockout Feature: Rotary handle with lockout capability

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.

Performance & Reliability

• Low Heat Loss: Compact and climate-resistant design
• Direct Current Switching: Suitable for DC applications
• Hazardous Areas: ATEX or IEC Ex applications supported
• Worldwide Approvals: IEC and UL/CSA certifications
• Load Compatibility: Optimized for load feeders and motor applications

Download existing graphical data for this product:

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