M8 Moulded Case Circuit Breaker

XUCKY Electric is a leading China manufacturer and exporter specializing in M8 Moulded Case Circuit Breaker widely known as ABN series MCCB. We have a wide range of products to meet the different needs of our customers worldwide. Our commitment to superior quality, innovative technology and excellent customer service makes us stand out in our industry.

M8 Moulded Case Circuit Breaker can be used for conversion of line and infrequent starting motor. It can also be attached to install the accessories which have protection function for avoiding loss voltge, under voltage. The product can install connection line with front board and back board, it also can equip hand operating apparatus or motor operating apparatus to control in a remote distance.

AF		50AF	100AF	250AF
Type		N-type	N-type	N-type
Type and Pole	3-Pole	ABN53C	ABN103C	ABN203C
Rated current,In	A	15.20.30.40.50	15.20.30.40.50.60.75.100	100.125.150.175.200.225.250
Rated operational voltage,Ue	AC(V)	690	690	690
	DC(V)	500	500	500
Rated insulation voltage,Ui	V	750	750	750
Rated impulse withstand voltage,Uimp	kV	8	8	8
Rated short-circuit breaking capacity(Icu) kA (Sym),KSC8321,IEC 60947-2
AC	690V	2.5	5	8
	480/500V	7.5	10	18
	415/460V	14	18	26
	380V	18	22	30
	220/250V	30	35	65
DC	500V(3P)	5	10	10
	250V(2P)	5	10	10
Ics=%xIcu		100	100	100
Dimensions(mm)	WxHxD	75x130x60mm	75x130x60mm	105x165x60mm
	a	75	75	105
	b	130	130	165
	c1	60	60	60
	c2	64	64	64
	d	82	82	87
Weight,kg	Standard	0.7	0.7	1.2

Molded Case Circuit Breaker Ratings

Molded case circuit breakers (MCCBs) have a variety of ratings that determine their performance and suitability for different applications. Some of the main molded case circuit breaker ratings include:

• Rated Current (In) is the exceeding value when the overload protection reaches its tipping point. You can modify these values in MCCB.
• Rated Frame Current (Inm) is the maximum capacity value of the MCCB and dictates its physical form.
• Rated Insulation Voltage (Ui) is the maximum current MCCBs can handle as evidenced by the conducted tests. It is greater than the rated working voltage to give an allocated safety margin while in use.
• Rated working voltage (Ue) is the uninterrupted operating voltage of MCCB. This is usually equal to or near the standard level of system voltage.
• Operating short-circuit breaking capacity (Ics) is the maximum fault current that MCCB can trip without permanent damage. You can continue using the MCCB after a fault interruption, provided it doesn't go beyond the limits.
• Mechanical life is the number of times you can operate the device manually before it dysfunctions. Electrical life is the estimated number of times the MCCB can trip before it completely becomes unusable.

Advantages:

● High Performance: The M8 ABN series is known for its high breaking capacity, ensuring reliable performance even under severe fault conditions.

● Durability: Made with high-quality materials and advanced manufacturing processes, these circuit breakers offer long service life and robust construction.

● Safety: They comply with international safety standards, providing users with peace of mind knowing their electrical systems are protected.

● Versatility: Suitable for a wide range of applications, including industrial, commercial, and residential settings.

● Cost-Effective: Efficient design and reliable operation help reduce overall costs associated with electrical system maintenance and downtime.