Siemens Residual current device, 4-pole, 0.3 - 5A

Product Overview

The Siemens 3VA9114-0RL21 is a professional residual current device (RCD520B) designed for 3VA11 series molded case circuit breakers. This Type B/B+ RCD provides comprehensive ground fault protection with adjustable residual current settings from 0.03 to 5A and timing delay from 0 to 10,000ms. The 4-pole, load-side mounted configuration ensures reliable protection against dangerous shock currents and electrical faults in industrial applications.

Key Features

• Type B/B+ Protection: Advanced RCD technology for comprehensive fault current detection
• Adjustable Current Range: Residual current settings from 0.03A to 5A for flexible protection levels
• Variable Time Delay: Adjustable timing from 0 to 10,000ms for selective coordination
• 4-Pole Configuration: Complete protection for 3-phase plus neutral applications
• Load-Side Mounting: Professional installation configuration for circuit breaker integration
• Wide Voltage Range: Operating voltage 127-690V for diverse electrical systems

Technical Specifications

• Product Type: Residual current device (RCD520B Basic)
• RCD Type: Type B or B+ ground fault protection
• Residual Current Range: 0.03 to 5A (adjustable)
• Time Delay: 0 to 10,000ms (adjustable)
• Configuration: 4-pole, load-side mounted
• Rated Current: 160A
• Operating Voltage: 127-690V
• Compatibility: 3VA11 series circuit breakers
• Article Number: 3VA9114-0RL21
• Net Weight: 0.933 kg
• Packaging Dimensions: 121.00 x 203.00 x 114.00 mm
• Country of Origin: China
• EAN: 4042949019909

Applications

• Industrial electrical systems requiring ground fault protection
• Commercial installations with 3VA11 circuit breaker systems
• Manufacturing facilities with sensitive electronic equipment
• Healthcare facilities requiring enhanced electrical safety
• Data centers and telecommunications installations
• Process industries with critical safety requirements

Safety and Protection Features

• Shock Protection: Prevents dangerous electrical shock currents
• Fire Prevention: Detects ground faults that could cause electrical fires
• Selective Coordination: Adjustable timing allows for proper circuit coordination
• Comprehensive Detection: Type B/B+ technology detects AC, DC, and pulsating fault currents
• Professional Grade: Designed for demanding industrial and commercial applications

Installation Features

• Load-Side Mounting: Integrates seamlessly with 3VA11 circuit breaker systems
• Adjustable Settings: Field-adjustable current and time parameters
• Robust Construction: 0.933 kg weight indicates substantial build quality
• Professional Installation: Designed for qualified electrical personnel
• System Integration: Compatible with SENTRON protection system architecture

Compliance & Certifications

• RoHS Compliance: Since January 1, 2018
• WEEE Directive: Subject to take-back obligations
• REACH Regulation: Contains lead, lead monoxide, and tetrabromobisphenol A (safe for intended use)
• Export Control: AL: N / ECCN: N

Download existing graphical data for this product:

• Technical Datasheet (PDF)
• RCD520B Delivery Release Document
• Residual Current Protective Devices Manual
• 3VA Series Manual - SENTRON 3VA
• RCD Product Information Page
• Siemens Support Portal