>TM1 Series MCCB

APPLICATION

●TM1 series moulded case circuit breaker (named as MCCB in the following ) is a new type breaker which is applied with rated insulating voltage 800V(500V forTM1-63),rated working voltage 690V for TM1-63 and used for infrequent exchange and startup in AC(60)Hz condition. The MCCB is of protecting functioin in overloading, short-circuit, and under voltage situation to protect circuit system and power device from damage.

●The MCCB can be devided into L; M; H types according to their rated limit short-circuit breaking capacity.

●The MCCB is advantageous for its compact body,high breaking capacity (some even on flying arc), short arc-casting and superior aseismatic function.

●The MCCB has function of insulation with its mark" "

●The product complies with IEC60947-2、 GB14048.2.

TYPE CODE & SIGNIFICATION

1.N-P type from 4-P has 3 types:

A type: N-P without current tripper (normally open);

B type: N-P without current tripper working together with other 3P;

C type: N-P without current tripper working together with other 3P;

2.No code for distribution type breakers,2 for motor-protection type;

3.No-code for distribution type breakers,2 for motor-protection type;

4.It can be divided into L(common)type,M(standard)type and H(high) type.L type with connecting current equal to relevant frame level and M type with breaking capacity equaling to their frame level according to their rated limited short-circuit breaking capacity(Icu).

NORMAL WO RKING SITUATION

●Altitude 2000m and below;

●Ambient temperature no higher than+40℃

  (45C for watercraft) no less than-5℃;

●Stand moist air;

Stand salty&oil mildew;

●Most gradient 22.50;

●Atmosphere without corrupt&electric air and; 

no danger of explosion;

●Without rain effect.

TRIPPING CHARACTER                                                                                                                                                              Table 1:tripping characteristic

POWER LOSS

                                                                                                     Table 2:MCCB power loss reference

DERATING FACTOR

                                                                                            Table 3: shipcraft type MCCB derating factor

Note: The above derating factors are got by rated frame level current

MAIN TECHNIQU E DATA OF MCCB

Mark4:MCCB main technique data reference

TYPE				TM1-63L TM1-63M				TM1-100L TM1-100M				TM1-225L  TM1-225M		TM1-250L TM1-250M
Rated frame level  current Inm(A)				63				100				225
Rated current In(A)				10、 12、16、 20、25、32、 40、50、63				16、20、25、 32、40、50、 63、80、100				125、160、 180、 200、 225、 (250)
Rated insulated voltage Ui(AC V)				500				800				800
Rated impulse-stand  voltage Uimp(V)				8000				8000				8000
Rated working  voltage Ue(AC V)				400/415				400/415				400/415
Poles				3		4		3		4		3		4
Rated limited shout-circuit  breaking capacity level				L	M	L	M	L	M	L	M	L	M	L	M
Rated limited short-circuit  breaking capacity Icu(KA)		400V/415V		20	30	20	30	30	50	30	50	35	50	35	50
Rated working short circuit breaking capacity Ics(KA)		400V/415V		15	22.5	15	22.5	22.5	37.5	22.5	37.5	26.25	37.5	26.25	37.5
Operation  characteristic (Times)		Connected		2000				2000				1500
		Break		10000				10000				8500
Outlook  dimension			L	135				150				165
			W	78		103		92		122		107		142
			H	73.5		81.5		72		88		86		103
Weight (g)				735	849	1464	1952	1257	1493	1493	1900	1714	2014	1900	2014
Arcing distance ( mm)				0、≤50				0、≤50				0、≤50

ANNEX SERIES

1.Annex code comparison table

Table4: Annex code comparison table

2.Auxiliary contact

Table 5: Auxiliary contact and assemblies

In the position of“open”or“free trip”for breaker	Double auxiliary contact
	Single auxiliary contact
In the position of“close”for breaker	“close”turn to“disconnect”、“disconnect" turn to“close”A

3.Auxiliary contact technical parameter

Table 6: Auxiliary contact current parameter

Table 7: Auxiliary contact electric life

Table 8: Auxiliary contact connecting and breaking capacity 

4.Auxiliary contact wiring diagram

5.Alarming contact

Table 9: Alarming contact and assemblies

Alarming contact conventional thermal current is 3A,rated working current is 0.3A for rated working voltage AC400V

6.Alarming contact wiring diagram

The contact will not act when breaker is in the working condition, contact will not change his original position untill breaker trip freely,it means normal open turn to close,normal closing turn to open,it will recover to original position after breaker trip again

7.Undervoltage tripper

UVT should act reliable and push breakers to off when voltage reach 35%-70%rated supply voltage.When with less than 35% rated voltage, UVT should prevent breakers from closing,UVT ensure that breakers are closing when power supply voltage equals or surpass 85% rated voltage.

Controlling voltage: AC 50Hz 230V     400V

                                 DC          110V     250V

P.S: Breaker can trip again and close on condition that UVT galvawize,otherwise will be broken

Table 10: Under-volt tripping instantaneous current and loss

8.Shunt tripping device

SHT is installed in A phase of breaker SHT should push breaker trip reliable at all requirements when

voltage is within 70%-110% of rated controlling voltage

Controlling voltage: AC 50Hz 230V      400V

                                 DC            24V      250V

P.S:It is recommended for DC 24V controlling power to design circuit according to the right picture

KA:Means DC 24 middle relay contact current capacity 1A .

Table 11: Shunt tripping device instantaneous current and loss

Interlock mechanism and relevent dimension picture1、marks13