TKDM1E series electronic moulded-case circuit breaker (MCCB)-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDM1E series electronic moulded-case circuit breaker (MCCB)

The TKDM1E series electronic molded-case circuit breaker (MCCB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz circuits with a rated insulation voltage of 1000V and a rated voltage of 690V or less, and a rated working current of up to 2000A. It is generally used for power distribution, protecting lines and power equipment from damage caused by overloads, short circuits, and undervoltage faults. It is used in places with infrequent line switching and infrequent motor starting.

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Moulded-case circuit-breaker (MCCB)

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TKDM1E series electronic moulded-case circuit breaker (MCCB)

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Product Details

Scope of Application and Main Features

The TKDM1E series electronic moulded-case circuit breaker (MCCB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz circuits with a rated insulation voltage of 1000V and a rated voltage of 690V or less, and a rated working current up to 2000A. It is generally used for power distribution, protecting lines and power equipment from damage caused by overloads, short circuits, and undervoltage faults. It is used in locations with infrequent line switching and infrequent motor starting.

This series of Circuit-breakers features a compact structure, small size, high breaking capacity, and complete internal and external accessories.

The Circuit-breaker has overload long-delay, short-circuit short-delay, and short-circuit instantaneous functions. The protection current and time are adjustable on-site, facilitating the implementation of full selective protection.

With a built-in MCU microprocessor controller and using current transformer self-generated power, reliable protection can be achieved when the three-phase load is greater than 0.2In or the single-phase load is greater than 0.5In.

The Circuit-breaker can be optionally equipped with an intelligent communication module to achieve fieldbus communication.

It has an intelligent controller trip test function.

The Circuit-breaker has an isolation function, and its corresponding symbol is:

The Circuit-breaker has pre-alarm indication and overload indication.

Model and Meaning

TKD
1

M
2

1
3

E
4

250
5

M
6

P
7

4
8

300
9

A
10

丄
11

□
12

□
13

□
14

Serial Number	Description	Model Meaning
1	Enterprise code	TKD: Shandong Taikai Electrical Appliance Co., Ltd.
2	Product Category	M: Moulded-case circuit breaker (MCCB)
3	Design SN	1
4	Trip unit code	E: Electronic trip unit
5	frame size	100, 250, 400, 630, 800, 1250, 1600, 2000
6	Breaking level code	Breaking level code: M, H
7	Operation mode code	No code: Direct manual operation; P: Electric operating mechanism; Z: Rotary handle operating mechanism
8	Pole number	3: 3 poles; 4: 4 poles
9	Internal accessory code	300: No accessories; Others see the Trip method and internal accessories table
10	Neutral pole form	Neutral pole (N pole) form in four-pole Circuit-breaker: Type A, Type B, Type C, Type D ①
11	Overload alarm without tripping	Blank: Standard configuration; I: Overload alarm without tripping ②
12	Cabling type	Blank: Front panel wiring; Optional: Plug-in front panel wiring, plug-in rear panel wiring, connecting block
13	Controller function	Blank: Conventional protection function (long delay, short-circuit short delay, instantaneous protection); Optional: Ground fault protection
14	Communication function	Blank: No communication function; Optional: 485 communication, "four remote" communication function (communication protocol defaults to Modbus)

Note:

①Neutral pole code explanation:

A: The N pole does not install an overcurrent trip unit, and the N pole is always connected, not switching with the other three poles;

B: The N pole does not install an overcurrent trip unit, and the N pole switches with the other three poles (the N pole closes later and opens earlier);

C: The N pole installs an overcurrent trip unit, and the N pole switches with the other three poles (the N pole closes later and opens earlier);

D: The N pole installs an overcurrent trip unit, and the N pole is always connected, not switching with the other three poles;

②Overload alarm without tripping function explanation:

Circuit-breakers with this optional function require an additional function module on the right side of the Circuit-breaker, with a thickness of 25mm.

Main Technical Performance Indicators of Circuit-breaker

Model		TKDM1E-100				TKDM1E-250			TKDM1E-400
Rated current In (A)		32	63	100		250			400
Setting current (adjustable) Ir (A)		16, 20, 25, 32	32, 36, 40, 45, 50, 55, 60, 63	63, 65, 70, 75, 80, 85, 90, 95, 100		100, 125, 140, 160, 180, 200, 225, 250			200, 225, 250, 280, 315, 350, 400
Rated voltage Ue (V)		AC400
Rated insulation voltage Ui (V)		AC1000
Rated impulse withstand voltage Uimp		8000
Breaking Capacity Code		M		H		M		H	M		H
Pole number		3	4	3	4	3	4	3	3	4	3
Rated ultimate breaking capacityIcu（kA）		50		80		50		85	65		100
Rated operating breaking capacityIcs（kA）		35		50		35		50	42		65
Rated short-time withstand currentIcw（kA）/1s		2				2			5
Usage Category		A				A			B
Mechanical life (times) *		8000				8000			7500
Mechanical life (times) *	Maintenance-free	20000				20000			10000
Mechanical life (times) *	With maintenance	40000				40000			20000
Dimensions (mm)	L	150				165			257
	W	92	122	92	122	107	142	107	150	198	150
	H	93				92			107.5
Arcing distance		≤50				≤50			≤100
Neutral (N) Rated current		Same as Circuit-breaker Rated current

★According to GB/T 14048.1, the term "life" refers to the probability of the number of operations that an electrical appliance can complete before repair or replacement of parts.

Model		TKDM1E-630				TKDM1E-800
Rated current In (A)		630				800
Setting current Ir (A)		400、420、440、460、480、500、530、560、600、630.				630、640、660、680、700、720、740、760、780、800
Rated impulse withstand voltage Uimp		8000
Rated insulation voltage Ui (V)		AC1000
Rated voltage Ue (V)		AC400
Breaking Capacity Code		M		H		M		H
Pole number		3	4	3	4	3	4	3	4
Rated ultimate breaking capacityIcu（kA）		65		100		65		100
Rated operating breaking capacityIcs（kA）		42		65		42		65
Rated short-time withstand currentIcw（kA）/1s		8				10
Usage Category		B				B
Mechanical life (times) *		7500				7500
Mechanical life (times) *	Maintenance-free	10000				10000
Mechanical life (times) *	With maintenance	20000				20000
Dimensions (mm)	L	280
	W	210（3P）、280（4P）
	H	116.5
Arcing distance		≤100
Neutral (N) Rated current		Same as Circuit-breaker Rated current

★According to GB/T 14048.1, the term "life" refers to the probability of the number of operations that an electrical appliance can complete before repair or replacement of parts.

Model		TKDM1E-1250			TKDM1E-1600			TKDM1E-2000
Rated current In (A)		1250			1600			2000
Setting current Ir (A)		500、630、700、800、900、900、1000、1100、1200、1250			630、800、900、1000、1100、1250、1400、1500、1600			800、1000、1250、1400、1500、1600、1800、1900、2000
Rated impulse withstand voltage Uimp		8000
Rated insulation voltage Ui (V)		AC1000
Rated voltage Ue (V)		AC400 AC415				AC690
Breaking Capacity Code		M		H		H			M
Pole number		3	4	3	4	3	4		3	4
Rated ultimate breaking capacityIcu（kA）		85		100		25			25
Rated operating breaking capacityIcs（kA）		50		85		25			25
Rated short-time withstand currentIcw（kA）/1s		25
Usage Category		B
Mechanical life (times) *		500
Mechanical life (times) *	Maintenance-free	3000
Mechanical life (times) *	With maintenance	5000
Dimensions (mm)	L	340		340		340			340
	W	210	280	210	280	210	280		210	280
	H	152		152		152			152
Arcing distance		≤100
Neutral (N) Rated current		Same as Circuit-breaker Rated current

★According to GB/T 14048.1, the term "life" refers to the probability of the number of operations that an electrical appliance can complete before repair or replacement of parts.