General
YCB7LE-63Y series integrated residual current operated circuit breaker is mainly used in AC50/60Hz rated voltage 230V rated current up to 63A lines,as a load line for leakage (electricshock),overload and short circuit protection.It can also be used for infrequent connection,disconnection,and switching.
Standard:|EC/EN 61009-1

General
YCB7RL-100 series electromagnetic residual current operated circuit breaker (RCCB)  is mainlysuitable for AC distribution networks with a rated working voltage of 230V or 400V at 50Hzand a rated current of 63A.Used for indirect contact protection of people,and can also beused to prevent fire hazards caused by insulation damage to circuits and equipment,resulting in ground fault currents.

A modular DIN rail-mounted safety device designed for residential electrical systems, combining overload, short-circuit, and earth fault protection. Compliant with IEC/EN 61009-1 standards, it features a compact design, flame-retardant housing, and user-friendly functions like monthly test requirements, contact position indicators (red=ON, green=OFF), and a non-slip handle for reliable operation.

Voltage and current display relay is a microprocessor-based voltage monitoring device for sinale-phase AC networks to protect electrical equipment from surge voltage. The device analyzes the main voltage and displays its curent value on a digital indicator. Load is switched by electro magnetic relay. The user can set the current voltage value and delay time through the button.The value is stored in non-volatile memory. Aluminum wires and copper wires can be used for connection.

General
YCH7-125 series isolating switch is suitable in the resistive circuit of AC 50/60HZ,rated voltage 230/400V,rated current up to 125A.
It’s used primarily for circuit’s turning on or off in non-loadedsituation.And it functions on connection and isolation between lines and power,especially suitable to isolate power effectively and prevent circuit breaker from closing acidentally when maintain the circuit in order to ensure the safe operation of maintainer.
Standard:IEC600947-3

General
1.Protection against overload and short-circuit currents
2.Protection against the effects ofsinusoidal alternating earthfault currents
3.Protection against indirectcontacts and additional protection against direct contacts.
4.Protection against fire hazard caused by insulation faults
5.Used in residential building
6.According tothe type of instantaneous release classified as follows:type B(3-5)In,type C(5-10)In,type D(10-20)In

Function

1.  Personnel and fire protection

2.  Cable and line protection against overload and short-circuits.

Selection

1.  I∆n ≤ 30 mA: additional protection in the case of direct contact.

2.  I∆n ≤300 mA: preventative fire protection in the case of ground fault currents.

3.  AC class – Tripping is ensured for sinusoidal, alternating currents, whether they be quickly applied or slowly increase.

YCS7N series Surge Protection Device (SPD) is suitable for TT, IT, TN-S, TN-C and TN-C-S, the power supply system with the rated voltage up to 230/400V and AC 50/60Hz. Its design corresponds to IEC61643-1. The product is usually installed in the incoming line low voltage distribution box of the building, and it can release 80kA lightning stroke current.

YCB6-63 miniature circuit breaker(circuit breaker) is applicable to the circuit with AC50Hz/60Hz, rated voltage of no more than 400V， rated current up to 63 A for overload protection and short circuit protection. This product can be applied to various places such as industrial, commercial, tall buildings,and residential houses.

Standard: IEC60898-1

Ideal for industrial, commercial, and building applications, the YCB9NZF-40 IoT miniature circuit breaker delivers smart, reliable power protection. Monitor 10+ electrical parameters (voltage, current, temperature, leakage, etc.) in real time, with 13 customizable protection functions (over-voltage, under-voltage, overload, high-temperature, etc.) that trigger alarms or trips. Built to IEC standards, it boasts 6kA short-circuit breaking capacity and 15,000+ mechanical operations for long-term durability. Connect via RS485/Wi-Fi, manage up to 16 devices through a gateway, and customize ratings (20A/40A) to fit your load needs. Streamline operations, reduce downtime, and enhance safety—your smart distribution partner.

YCB9LZF-80AP series IoT miniature circuit breakers are used in low-voltage terminal distribution networks in industrial, commercial, civil and infrastructure fields in indoor buildings and similar places. IoT miniature circuit breakers are used with intelligent gateways to monitor key electrical parameters of power lines, such as voltage, current, power, temperature, leakage,energy consumption, etc. in real time, and have functions such as remote control, abnormal warning, accident tripping alarm, power metering statistics, and fault location.