Siemens Arc fault detection device, 230V, 1-16A Part number 5SM6021-2

Product Overview

The Siemens 5SM6021-2 is an arc-fault detection device (AFDD) block designed for installation with circuit-breakers or RCBOs in single-phase + neutral (1 P + N) configurations. It is rated for 1-16 A in a 230 V network and forms part of Siemens’ SENTRON protection-component range, providing early detection of hazardous arcing faults and disconnection before fire risk arises.

Key Features

• Arc-fault detection unit block (AFDD) compatible with MCBs and RCBOs
• Dedicated for 1 P + N installation in 230 V AC systems
• Rated current range: 1 A up to 16 A
• Designed to detect series and parallel arcing faults and disconnect to prevent fire hazards
• Installable supplementary device (block) for use with SENTRON MCBs or RCBOs
• Width: 1 modular unit (18 mm), suitable for DIN-rail mounting
• Halogen-free and silicon-free housing for safer installations

Technical Specifications

• Product Series: SENTRON Arc-Fault Detection Device
• Article Number: 5SM6021-2
• Poles: 2 (1 P + N)
• Rated Supply Voltage: 230 V AC, 50 Hz
• Rated Current Range: 1 … 16 A
• Installation Depth: approx. 70 mm
• Width: 18 mm (1 module)
• Ambient Operating Temperature: –25 °C … +45 °C
• Protection Class: IP20 when installed with conductors

Compliance & Certifications

• Manufactured by Siemens as part of the SENTRON protective-component portfolio
• Developed for compliance with fire-safety and electrical-installations standards for arc-fault detection
• Designed to expand standard overcurrent and earth-leakage protection with arc or fire hazard detection

Applications

Ideal for enhancing protection of residential or commercial branch circuits by adding arc-fault detection to standard circuit-breakers or RCBOs. Commonly used in installations where risk of insulation damage, loose contacts, or cable faults may lead to dangerous arcing and fire—such as lighting circuits, outlet circuits, consumer-unit upgrades, and retrofit protection solutions.