YCB9RL-63B RCCB Type B

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YCB9RL-63B RCCB Type B

General

YCB9RL-63-B is a complete upgrade residual circuit breaker of the existing A type residual circuit signal detection, it can not only have an effective protection to the AC (AC type) and pulsating DC (A type) and may produce compound residual current (F type) , but also have an effective protection to smooth DC and high frequency residual current (1kHz). In the circuit composed of rectifier, inverter, frequency converter, etc., the Leakage current generated by DC loop can be effectively detected and protected.

The products are widely used in industry, medical treatment, charging pile, elevator and other fields.

The residual current type: AC+A+ Smooth DC +F+ High frequency signal (1kHz)

Product Details

General

Technical data

Item	Parameter	Data
Electrical features	Rated voltage Ue (V)	240V~1P+N,415V~3P+N
	Rated current In (A)	16A,25A,32A,40A,63A
	Rated sensitivity I∆n (A)	0.03A,0.1A,0.3A
	Poles	1P+N,3P+N
	Wave form of the earth leakage sensed	B(AC+A+ Smooth DC +F+ High frequency signal (1kHz))
	Rated short circuit capacity Icn (A)	6 000
	Rated making and breaking capacity Im(A)	1000
	Rated residual making and breaking capacity I∆m (A)	1000
	Rated insulation voltage Ui (V)	500V
	Rated impulse withstand voltage Uimp (V)	4000V
	Pollution degree	2
Mechanical features	Electrical life	1000
	Mechanical life	20000
	Protection degree	IP20
	Ambient temperature (℃)	-25~+40
	Storage temperature (℃)	-25~+70
Installation	Tightening torque (N.m)	3
	Terminal size for cable (mm2)	16
	Installation category	Ⅱ

Overall and mounting dimensions(mm)

B Type RCCB FAQ

Frequently asked questions about B Type RCCBs for EV chargers, inverters, VFD systems, and other applications requiring advanced residual current protection.

1. What is a Type B RCCB?

A Type B RCCB is a residual current circuit breaker designed to detect AC residual current, pulsating DC residual current, smooth DC residual current, and high-frequency leakage current. It is suitable for advanced electrical systems such as EV chargers, inverters, and variable frequency drives.

2. What is the difference between Type B RCCB and Type A RCCB?

Type A RCCBs can detect AC and pulsating DC leakage currents, while Type B RCCBs can also detect smooth DC leakage currents and high-frequency residual currents. This makes Type B RCCBs more suitable for applications involving power electronics.

3. When should a Type B RCCB be used?

A Type B RCCB should be used where smooth DC leakage current may occur, such as in EV charging stations, photovoltaic inverter systems, variable frequency drives, elevators, medical equipment, and industrial automation systems.

4. Why are Type B RCCBs required for EV chargers?

EV chargers may generate smooth DC leakage currents because of their internal power electronic components. Standard RCCBs may not detect these currents properly, while Type B RCCBs provide more reliable protection in this situation.

5. Can a Type A RCCB replace a Type B RCCB?

No. Type A RCCBs are not designed to reliably detect smooth DC leakage currents. In applications where DC leakage may occur, a Type B RCCB should be used to ensure proper protection.

6. What applications typically require a Type B RCCB?

Typical applications include EV charging stations, solar inverter systems, variable frequency drives, UPS systems, elevators, medical equipment, and industrial automation equipment.

7. What residual currents can a Type B RCCB detect?

A Type B RCCB can detect AC residual current, pulsating DC residual current, smooth DC residual current, and high-frequency leakage current. This wide detection range makes it suitable for complex modern electrical systems.

8. What sensitivity ratings are available for Type B RCCBs?

Common sensitivity ratings include 30mA, 100mA, and 300mA. A 30mA device is generally used for personal protection, while higher ratings are used for equipment protection or fire prevention.

9. Is a Type B RCCB required for solar inverter systems?

In many photovoltaic systems, especially those using transformerless inverters, smooth DC leakage currents may occur. In these cases, a Type B RCCB is often recommended or required.

10. How do you choose the right Type B RCCB?

You should consider the rated current, number of poles, residual current sensitivity, installation environment, and the type of connected equipment. The right selection helps ensure safe and reliable protection.