DW17D series universal circuit breaker

Function and use

DW17D series universal circuit breakers are suitable for power distribution networks with AC voltages of 400V (380V), 690V (660V), 50Hz, and rated operating currents up to 3900A. They are used to distribute power and protect lines and power supply equipment from overload, undervoltage, short circuit, etc. Under normal conditions, they can also be used for infrequent conversion of lines.

Detailed parameters

Parameter table 1

Parameter classification	Parameter item	Parameter value
4.1 Continuous current changes of the circuit breaker at different ambient temperatures (see Table 1)	Frame rating rated current Inm (A)	630, 800, 1000, 1250, 1600, 1900, 2000, 2500, 2900, 3200, 3900
	Continuous current changes under different ambient temperatures A (protection level is IP00)	Fixed type: 40℃, 45℃, 50℃ Drawer type: 40℃, 45℃, 50℃
		40℃: 630, 800, 1000, 1250, 1600, 1900, 2000, 2500, 2900, 3200, 3900 45℃: 630, 800, 1000, 1250, 1530, 1900, 2000, 2500, 2900, 3200, 3900 50℃: 630, 800, 1000, 1250, 1460, 1810, 2000, 2500, 2900, 3200, 3900 40℃: 630, 800, 1000, 1250, 1600, 1900, 2000, 2500, 2900, 3200, 3900 45℃: 630, 800, 1000, 1250, 1530, 1720, 2000, 2400, 2900, 3200, 3900 50℃: 630, 800, 1000, 1250, 1460, 1620, 2000, 2300, 2770, 3200, 3750
4.2 Breaking capacity of circuit breaker:	Frame rating rated current Inm (A)	1900, 2900, 3900
	Rated working voltage	400, 690, 400, 690, 380
	Rated insulation voltage Ui(V)	1000, 1000, 660
	Rated impulse withstand voltage Uimp(V)	8, 8, 8
	Rated operating short-circuit breaking capacity (kA)/COSΦ Rated ultimate short-circuit breaking capacity (kA)/COSΦ	690V~: 50/0.25, 80/0.2, 80/0.2
	Rated connection capacity (kA) 690V~ (peak value)	105, 176, 176
	Full breaking time ms	About 30, about 30, about 30
Note:	Manually operated circuit breakers should not be used in circuits with expected current peaks exceeding 10kA. When the short-circuit delay is greater than 300ms, the making and breaking capability data is determined through negotiation.	-

Parameter table 2

< td>500< tr>< td>DC starting power (W)31.5

Parameter classification	Parameter item	Parameter value
4.3 Mechanical life and electrical life times of the circuit breaker (see Table 3)	Frame rating rated current Inm (A)	1900
	Mechanical life (times)	20000
	Electrical life (times)	1000
	Mechanical life of drawer-type insertion device (times)	200×8
	Shell frame Level rated current Inm (A)	2900, 3900
	Mechanical life (times)	10000
	Electrical life (times)
	Mechanical life of drawer-type insertion device (times)	200×10
Note: a. The mechanical life of DW17D-1900 is 10,000 times when the motor is pre-charged.
b. The mechanical life of the drawer-type insertion device mainly includes the contact knife, the contact knife holder, the secondary circuit control contact guide rail, the interlocking mechanism, etc.
4.4 Performance of shunt release, undervoltage release, locking electromagnet, energy-releasing electromagnet and operating motor (see Table 4).	Name	Shunt release
	AC voltage (V)	380, 220
	AC starting power (VA)	510
	DC voltage (V)	220, 110
	DC starting power (W)	220
	Name	Undervoltage release
	AC voltage (V)	380, 220
	AC starting power (VA)	30
	DC voltage (V)	220, 110
	DC starting power (W)	10
	Name	Latching electromagnet
	AC voltage (V)	380, 220
	AC starting power (VA)	3 0
	DC voltage (V)	220, 110
	10
	Name	Energy release electromagnet
	AC voltage (V)	380, 220
	AC starting power ( VA)	510
	DC voltage (V)	220, 110
	DC starting power (W)	220
	Name	Motor
	AC voltage (V)	380, 220
	AC starting power (VA)	700
	DC voltage (V)	220, 110
	DC starting power (W)	400, 550
4.5 Protection characteristics of overcurrent release.
4.5.1 Long-time delay action characteristics of overload release (see Table 5).	Serial number	1
	Ambient air temperature	+30℃±5℃
	Passed Carrying current/release setting current	1.05
	Time	No tripping within 2h (cold state)
	Serial number	2
	Ambient air temperature	+30℃±5℃
	Overload current/release unit Constant current	1.3
	Time	<1h trip (hot state)
	Serial number
	Ambient air temperature	+30℃±5℃
	Overload current/release setting current
	Time	<2min trip (hot state)
	Serial number	4
	Ambient air temperature	+30℃±5℃
	Overload current/release setting current	3
	Time	Can return to >8s cold state
Note: The number 2 action current of a three-phase circuit breaker is allowed to increase by 10% when it is under two-phase load, and it is allowed to increase by 20% when it is under single-phase load.

Parameter table 3

Parameter classification	Parameter item	Parameter value
4.5.2 The error of the operating current of the short-circuit release is ±20% of the setting value.
Note: Using clock delay mechanism (ZZ), the delay range is (0-300)ms (continuously adjustable), and the error is ±40ms.
4.6 The setting current adjustment range of the circuit breaker overcurrent release and the weight of the circuit breaker (see Table 6).
Item	Model	630 800 1000 1250 1600 1900 2000 2500 2900 3200 3900 Remarks
Overload long-time delay release setting current adjustment range (A)	200-300-400	√/△ √/△ Choose any one
	350-500-630	○√/△ √/△ √/△
	500-650-800	○/△
	500-750-1000	○/△ √/△ √/△
	750-1000-1250	○/△ √/△
	900-1200-1600	○/△ √/△
	900-1400-1900	○/△ √/△
	1000-1500-2000	○/△ √/△
	1500-2000-2500	○/△ √/△
	1900-2400-2900	○/△ √/△
Short-circuit short-time delay release setting current adjustment range (kA)	3-4-5	Choose one
	5-6-5-8	√/△ √/△ √/△ √/△ √/△ √/△ △
	8-10-12	√/△ √/△ √/△ √/△ √/△ √/△ √/△
	8-12-16	√/△ √/△ √/△ √/△ √/△ √/△ √/△
	10-15-20	√/△ √/△ √/△ √/△ √/△ √/△ √/△
Short-circuit instantaneous release setting current adjustment range (kA)	1.5-2-3	△ △ △
	2-3-4	√/△ √/△ √/△ √/△ √/△ √/△ √/△
	4-6-8	√/△ √/△ √/△ √/△ √/△ √/△ √/△
	6-9-12	√/△ √/△ √/△ √/△ √/△ √/△ √/△
	8-12-16	√/△ √/△ √/△ √/△ √/△ √/△ √/△
	10-15-20	√/△ √/△ √/△ √/△ √/△ √/△ √/△
No bs release fixed type	Fixed type / Drawer type	28 28.5 29 31.5 34.5 38.7 61 64 73 109 122 Not suitable for four poles
		38/58 39.5/59.5 40/61 42.5/63.5 45.5/66.5 49.7/71.7 76/116 79/119 88/132 113/160 126/179
4.7 Circuit breaker safety distance (including arcing distance) (see Table 7).
Circuit breaker model	Fixed horizontal connection and drawer-type safety distance (mm)	A B C D Fixed vertical connection safety distance (mm) A B C D
DW17D-1900		250 100 100 120 250 100 100 120
DW17D-2900		350 100 100 120 500 100 100 120
DW17D-3900		350 100 100 120 500 100 100 120
4.8 The auxiliary switch has a mechanical life of 20,000 times and an electrical life of 10,000 times.
Power supply type	Rated control capacity Pe	Rated operating voltage Ue Making and breaking conditions Agreed heating current Ith Test cycle (times) Interval time s Power-on time ms
		U/Ue I/Ie CosΦ or T(℃)
AC	300VA	(220-380)V 1.1 1.1x10 0.7 6A 50