Betagard Residual Current Breaker Operator, Type AC with C characteristic – 5SU1344-8RC63

Product Description

Betagard Residual Current Breaker Operator, Type AC with C Characteristic – 5SU1344-8RC63

The Siemens 5SU1344-8RC63 is a high-performance Betagard Residual Current Breaker Operator (RCBO) designed to provide reliable protection against overload, short-circuit, and earth leakage faults in low-voltage distribution systems.

It combines Type AC residual current protection (sensitive only to sinusoidal AC leakage currents) with a C-characteristic tripping curve, making it ideal for circuits with moderate inrush currents such as lighting systems, socket outlets, HVAC loads, and small motor applications.

With a 63A rated current, this RCBO is suitable for heavy-load residential, commercial, and light industrial installations where higher current capacity and dependable protection are required.

Key Features

• Siemens Betagard 5SU1 series RCBO
• Part Number: 5SU1344-8RC63
• Type AC residual current detection (sinusoidal AC only)
• C-curve tripping characteristic for moderate inrush loads
• Rated current: 63 A
• High breaking capacity for reliable fault protection
• Integrated protection against overload, short circuit & earth leakage
• Compact modular design for DIN rail mounting
• Touch-safe construction for operator safety
• Suitable for 3-phase distribution systems
• Long electrical and mechanical service life
• Complies with IEC 61009-1 / IEC 60947-2 standards