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First, the scope

YDM1 series molded case circuit breaker ( CM1 MCCB ), is adopting international advanced design and manufacturing technology research and development of new circuit breakers. Its rated insulation voltage is 690V, suitable for AC 50Hz, rated working voltage 400V and below, rated current 800A and below the circuit for frequency conversion and infrequent start motor used, the circuit breaker with overload, short circuit and undervoltage protection means to protect the circuit and power equipment from damage.
CM1 MCCB its rated limit short-circuit breaking capacity (lcu) level is divided into: C type (economy), L-type (standard), M-type (high breaking type), H type (high breaking type) four categories. CM1 molded case circuit breaker has small size, high breaking, short flying fox, anti-vibration and other characteristics, is ideal for land and marine use.
The molded case circuit breakers can be installed vertically (ie, vertical loading), it can also be installed horizontally (ie horizontal installation).
The product complies with IEC60947-2 and GB14048.2 standards.

Second, model and specification

Note:
1. handle direct operation no code, rotating operation in Z, electrically operated with P expressed;
2. only do isolated without tripping the circuit breaker to 000 means;
3. Motor protection circuit breaker 2, said power distribution with no code;
The four-pole circuit breaker neutral pole (N pole) structure code;
Type A: N pole not installed overcurrent tripping element, and N pole is always connected not with the other three poles combined points;
Type B: N pole not installed overcurrent tripping element, and the N pole and the other three poles combined points;
Type C: N pole installed current trip element, and the N pole and the other three poles combined points;
Type D: N pole installed current trip element, and N pole is always connected not with the other three poles combined points;

Third, the application environment

■ altitude of two thousand meters and below
■ ambient temperature is not higher than the positive forty degrees Celsius (for marine products is positive forty-five degrees Celsius), not less than minus five degrees Celsius.
■ able to withstand the impact of moist air;
■ can tolerate salt spray, impact of oil pollution;
■ can withstand the impact of mold;
■ able to withstand the effects of nuclear radiation;
■ The maximum angle of inclination of five past ten p.m. degree;
■ to work reliably in normal vibrations when subjected to the ship;
■ In case of an earthquake by (4g) can work reliably;
■ In the absence of explosive medium, the medium does not enough to corrode metal and damage the insulation of gas and conductive dust areas can work reliably;
■ In the absence of rain and snow erosion place to work reliably;  

Fourth, the main parameters and technical performance

frame degree rated current lnm (A)		100
Type		YDM1-100C	YDM1-100L	YDM1-100M	YDM1-100H
rated current ln (A)		16,20,25,32,40,50,63,80,100
Poles		3	3	4	3
Rated insulation voltage Ui		AC800V
rated voltage Ue		AC400V/AC690V
nominal frequency		50Hz
arcing distance		≤50mm
Rated ultimate short-circuit breaking capacity lcu (kA)		25	35	50	85
rated short-circuit breaking capacity lcs (kA)		18	22	35	50
operating performance (times)	electrical life	1500
	Mechanical life	8500
Accessories (optionally)	shunt release	●	●	●	●
	undervoltage release	●	●	●	●
	auxiliary contacts	●	●	●	●
	alarm contacts	●	●	●	●
	electric operating mechanism	●	●	●	●
	turn the handle operating mechanism	●	●	●	●
Dimensions	A	92	92	122	92
	B	150
	C	86		104
	D	68		86
installation dimensions	a	30	30	60	30
	b	129
	φd	5

frame degree rated current lnm (A)		225
Type		YDM1-225C	YDM1-225L	YDM1-225M	YDM1-225H
rated current ln (A)		100,125,140,160,180,200,225
Poles		3	3	4	3
Rated insulation voltage Ui		AC800V
rated voltage Ue		AC400V/AC690V
nominal frequency		50Hz
arcing distance		≤50mm
Rated ultimate short-circuit breaking capacity lcu (kA)		25	35	50	85
rated short-circuit breaking capacity lcs (kA)		18	22	35	50
operating performance (times)	electrical life	1500
	Mechanical life	8500
Accessories (optionally)	shunt release	●	●	●	●
	undervoltage release	●	●	●	●
	auxiliary contacts	●	●	●	●
	alarm contacts	●	●	●	●
	electric operating mechanism	●	●	●	●
	turn the handle operating mechanism	●	●	●	●
Dimensions	A	107	107	142	107
	B	165
	C	110		127
	D	86		103
Installation dimensions	a	35	35	70	35
	b	126
	φd	5

frame degree rated current lnm (A)		400
Type		YDM1-400C	YDM1-400L	YDM1-400M	YDM1-400H
rated current ln (A)		200,250,315,350,400
Poles		3	3	4	3
Rated insulation voltage Ui		AC800V
rated voltage Ue		AC400V/AC690V
nominal frequency		50Hz
arcing distance		≤100mm
Rated ultimate short-circuit breaking capacity lcu (kA)		35	50	65	100
rated short-circuit breaking capacity lcs (kA)		25	35	42	65
operating performance (times)	electrical life	1000
	Mechanical life	4000
Accessories (optionally)	shunt release	●	●	●	●
	undervoltage release	●	●	●	●
	auxiliary contacts	●	●	●	●
	alarm contacts	●	●	●	●
	electric operating mechanism	●	●	●	●
	turn the handle operating mechanism	●	●	●	●
Dimensions	A	150	150	198	150
	B	150
	C	155		146.5
	D	105		106.5
Installation dimensions	a	44	44	94	44
	b	194
	φd	7

frame degree rated current lnm (A)		630
Type		YDM1-630C	YDM1-630L		YDM1-630M	YDM1-630H
rated current ln (A)		250,315,350,400,500,630
Poles		3	3		4	3
Rated insulation voltage Ui		AC800V
rated voltage Ue		AC400V/AC690V
nominal frequency		50Hz
arcing distance		≤50mm
Rated ultimate short-circuit breaking capacity lcu (kA)		35	50		65	100
rated short-circuit breaking capacity lcs (kA)		25	35		42	65
operating performance (times)	electrical life	1000
	Mechanical life	4000
Accessories (optionally)	shunt release	●	●		●	●
	undervoltage release	●	●		●	●
	auxiliary contacts	●	●		●	●
	alarm contacts	●	●		●	●
	electric operating mechanism	●	●		●	●
	turn the handle operating mechanism	●	●		●	●
Dimensions	A	182	182	240	182	210
	B	270				280
	C	160				155
	D	110				115.5
dimensions	a	58	58	116	58	70
	b	200				243
	φd	7

frame degree rated current lnm (A)		800
Type		YDM1-800M	YDM1-800H
rated current ln (A)		630,700,800
Poles		33	3
Rated insulation voltage Ui		AC800V
rated voltage Ue		AC400V/AC690V
nominal frequency		50Hz
arcing distance		<100mm
Rated ultimate short-circuit breaking capacity lcu (kA)		75	100
rated short-circuit breaking capacity lcs (kA)		50	65
operating performance (times)	electrical life	1000
	Mechanical life	2500
Accessories (optionally)	shunt release	●	●
	undervoltage release	●	●
	auxiliary contacts	●	●
	alarm contacts	●	●
	electric operating mechanism	●	●
	turn the handle operating mechanism	●	●
Dimensions	A	275	275
	B	210	210
	C	107	107
	D
dimensions	a
	b
	φd

 

V. Order Information

When ordering indicate the following points:
Product type and name: If YDM1-225M ( CM1 MCCB )/YDM1-100H MCCB instantaneous trip rated current: as 225A.
Poles: 3P
Order Number: as 1000.
Ordering example: CM1 MCCB , 1P + N, 32A, 6110 只.