STRO7-63B RCBO B TYPE 2p 4p Residual Current Circuit Breaker

SONTUOEC are one of Chinese suppliers/ manufacturers STRO7-63B RCBO B TYPE 2p 4p Residual Current Circuit Breaker model is worked on type A and in addition for smooth DC residual currents, residual DC currents that may results from rectifying circuits and high frequency AC residual currents.It protects in the event of contunuous fault current on three phase networks. It usually is used in the field of Recharging Station, Medical Apparatus and Instruments, Controllers and Variable Speed Drives, Batter Charges and Inverters(DC)...STRO7-63B complys with IEC/EN61009-1 and IEC/EN62423 standard.It also has functions of leakage, overload, and short circuit protection

Model:STRO7-63B

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Product Description

Specifications:

Electrical Feature	Standard		IEC/61009-1 ; and IEC/EN62423
	Type(wave form of the earth leakage sensed)		B (Electronic type)
	Rated current In	A	6,10,16,20,25,32,40,63,80A
	Poles	P	1P+N,3P+N
	Rated voltage Ue	V	IP+N:230/240V;3P+N:400/415V
	Rated sensitivity I n	A	0.03,0.1,0.3
	Insulation voltage Ui	V	500
	Rated residual making and	A	500(In=25A/40A)
	breaking capacity I m	A	630(In=63A)
	Short-circuit current I c	A	10000
	SCPD fuse	A	10000
	Break time under I n	s	≤0.1
	Rated frequency	Hz	50
	Rated impulse withstand voltage(1.2/5.0)Uimp	V	4000
MechanicaI features	Dielectric test voltage at ind. Fred. for 1min	kv	2.5
	Pollution degree		2
	Electrical life		2000
	MechanicaI Iife		10000
	Fault current indicator		Yes
	Protection degree		IP20
	Ambient temperature(with daily average 35 )	ºC	-40~+55ºC
	Storage temperature	ºC	-40~+70ºC

Overload Protection: When STRO7-63B RCBO B TYPE 2p 4p Residual Current Circuit Breaker current in the circuit exceeds the rated value of the STRO7-63B RCBO, it will automatically cut off the circuit within a set period of time to prevent the circuit and equipment from overheating, thus avoiding fire and damage.

Short circuit protection: When STRO7-63B RCBO B TYPE 2p 4p Residual Current Circuit Breaker a short circuit occurs in a circuit, the STRO7-63B RCBO will quickly cut off the circuit to prevent the short circuit current from causing serious damage to the circuit and equipment.

Leakage Protection: The STRO7-63B RCBO is capable of detecting residual current (i.e., leakage current) in a circuit. When the residual current exceeds the set threshold, the RCBO B Model 2p 4p Residual Current Circuit Breaker will cut off the circuit in a very short period of time to prevent electrocution accidents and electrical fires.

Principle of operation of the STRO7-63B RCBO

The STRO7-63B RCBO contains an internal thermal magnetic trip detector (for overload and short circuit protection) and a residual current detector (for leakage protection). When the current or residual current in the circuit is abnormal, the corresponding striker triggers the tripping mechanism of the STRO7-63B RCBO, making it quickly cut off the circuit.

1.Thermal Magnetic Tripper: It utilizes the heat and magnetic field generated when the current passes through the conductor to trigger the tripping. When the current is too high, the conductor heats up and generates a magnetic field, causing the bimetal inside the thermal magnetic striker to bend or the magnet to attract the iron core, thus triggering the tripping mechanism.

2.Residual current detector: It utilizes a zero sequence current transformer to detect the residual current in the circuit. When the residual current exceeds the set threshold, the residual current detector will send a signal to the tripping mechanism to cut off the circuit.

Features of STRO7-63B RCBO

Multi-functional integration: The STRO7-63B RCBO integrates overload, short-circuit and leakage protection functions, simplifying the design and installation of electrical systems.

High sensitivity: STRO7-63B RCBOs can quickly detect and cut off abnormal and residual currents in the circuit, providing reliable protection.

Easy to install and maintain: STRO7-63B RCBOs are usually modularized for easy installation and maintenance.

High safety: STRO7-63B RCBOs are rigorously tested and certified for high safety and reliability to ensure the safe operation of electrical systems.

Application Scenarios of STRO7-63B RCBO

STRO7-63B RCBOs are widely used in electrical systems in the residential, commercial and industrial sectors, especially those that require simultaneous overload, short circuit and earth leakage protection. They are usually installed in distribution boxes, switchboards or control cabinets to protect circuits and equipment from damage caused by abnormal current and voltage, and to prevent electrocution.

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