5SU1646-6FP25

The Siemens 5SU1646-6FP25 is a 4-pole Residual Current Operated Circuit Breaker with Overcurrent Protection (RCBO), offering reliable dual protection by combining earth leakage protection and overcurrent protection in a single device. With a B-characteristic tripping curve, it is tailored for use in circuits with low inrush currents. The 300mA residual current sensitivity enhances fire safety, while the Energy Limiting Class 1 rating ensures fast fault clearing in demanding installations.

Key Features and Specification

• Rated Current (In): 25 A
• Rated Voltage (Un): 400 V AC
• Breaking Capacity: 6 kA
• Poles: 4
• Tripping Curve: B Characteristic (optimized for resistive loads with low inrush current)
• Residual Current Type: Type A (sensitive to AC and pulsating DC leakage currents)
• Rated Residual Current: 300 mA
• Energy Limiting Class: 1 (check for normative use limitations)

Technical Information

• Number: 5SU1646-6FP25
• EAN: 4001869578262
• Commodity Code: 85362010
• Catalog Reference: LV10
• Product Group: 5532
• Group Code: P310
• Lifecycle Status: PM300 – Active Product

Applications

• Suitable for residential, commercial, and industrial power systems with 4-pole configurations
• Designed for resistive load applications such as lighting, heating systems, or control circuits
• Ensures protection from overload, short circuit, and fire hazards caused by earth leakage
• Ideal for circuits where higher rated current (25A) is required along with fire prevention measures

Summary:

The Siemens 5SU1646-6FP25 RCBO delivers comprehensive protection for 4-wire systems with a 25A rated current and 300mA leakage current threshold. Its B-curve tripping profile is optimized for low inrush current applications, while the Energy Limiting Class 1 rating supports quick disconnection during fault conditions. This RCBO is a robust and efficient solution for ensuring electrical safety and regulatory compliance in demanding environments.