Technical Documentation

SINOTIMER WCB103 WiFi Smart Switch

• Brand: SINOTIMER
• Model: WCB103
• Type: WiFi smart switch
• Configuration: 3 poles + N (three-phase)
• Trip Curve: C
• Rated Current: 100 A
• Rated Voltage: 400 V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 6000 A
• Standard: IEC 60898-1
• Installation: DIN 35 mm rail

The SINOTIMER WCB103 switch is a three-phase switch with remote control via WiFi, designed for modern electrical installations that require both circuit protection and smart power control. The switch allows you to turn the circuit on and off via a mobile app, monitor its status, and integrate it into smart home systems, while maintaining conventional overload and short-circuit protection functions.

• Remote ON/OFF control via mobile application
• Monitoring circuit status (active/inactive)
• Integration with compatible smart home systems
• Mechanical local control via toggle switch
• LED indicators for status and WiFi connection

Electrical Protection:

• Overload protection
• Short-circuit protection
• C Curve, suitable for general circuits and moderate inductive loads
• Protection functions operate independently of WiFi

Main Electrical Parameters:

• Rated current: 100 A
• Curve: C
• Rated voltage: 400 V AC
• Frequency: 50/60 Hz
• Breaking capacity: 6 kA
• Number of poles: 3P+N

Installation:

• Designed for DIN 35 mm rail mounting
• Installation in three-phase electrical panels
• Requires WiFi 2.4 GHz connection for smart functions
• Installation by qualified personnel is recommended

Important Notes:

• The WiFi functionality does not replace the classic electrical protection, which remains active at all times.
• The device is not residual current device (RCD) and does not detect leakage currents.
• A stable WiFi signal is required for remote control.
• If WiFi connection is lost, the switch functions normally as a conventional switch.