First, the scope

DZ15LE leakage circuit breaker , is a neutral earth leakage protection device, suitable for AC 50Hz, rated voltage 380V, rated current up to 63A (100A) circuit, for leakage protection, also it is used to prevent fire hazard due to the sub-equipment insulation damage, resulting in ground fault currents caused. It can overload and short circuit protection circuit and the electric motor is used, may be used as infrequent line conversion and infrequent start motor used. Rated leakage operating value leakage circuit breaker according to the actual requirements can toggle adjustment.
DZ15LE leakage circuit breakers comply GB14048.2 standards.

two, DZ15LE leakage circuit breaker models and their specifications

Note: A type N pole not installed overcurrent tripping element, and N pole is always connected, not division and with other three poles;
B Type N pole not installed overcurrent tripping element, and N-pole switching, together with the other three poles.
Protections: Distribution Protection overcurrent trip; motor protection overcurrent release.

three, DZ15LE leakage circuit breakers normal operating conditions and installation conditions

◆ installation site altitude of not more than 2000 meters.
◆ The ambient air temperature
◇ maximum ambient air temperature does not exceed + 40 ℃;
◇ ambient air temperature 24h average does not exceed + 35 ℃;
◇ ambient air temperature limit is not lower than -5 ℃.
◆ atmospheric conditions
◇ atmospheric relative humidity, at around + 40 ℃ maximum temperature does not exceed 50%, at lower temperatures can have a higher relative humidity, the wettest month of the average minimum temperature is + 25 ℃, the monthly mean maximum relative humidity of 90%, taking into account the temperature changes on the surface of condensation.
◆ installation conditions
◇ installed without shock and vibration and no rain hit areas, the terminals connected to the supply side, under the terminals connected to the load side, and the vertical gradient of not more than 5 °.
◇ installation category Ⅲ class.
◇ Pollution levels for three.
Dang ◇ external magnetic leakage circuit breakers installed near the place in any direction does not exceed five times the Earth's magnetic field. & Nbsp;

Fourth, the main technical parameters and technical performance
DZ15 leakage circuit breakers

★ leakage circuit breakers basic specifications and parameters

Type	rated voltage Un (V)	frame degree Rated current (A)	Poles	rated current (A)	Rated ultimate short Path analysis capabilities Icu (kA)	rated running short Path analysis capabilities Ics (kA)	Rated residual pick Common denominator breaking capacity IΔm (kA)	Rated residual Operating current I △ n (mA)	Rated residual non Operating current I △ no (mA)	arcing Distance
DZ15LE -40	220	40	2	6, 10,16, 20,25, 32,40	3	1.5	1.0	15	8	≤50
								30	15
								50	25
	380		3					75	40
								100	50
			4					200	100
								300	150
DZ15LE -100	220	100	2	10,16, 20,25, 32,40, 50,63, 80,100	5	2.5	1.5	30	15	≤70
								50	25
								75	40
	380		3					100	50
								200	100
			4					300	150
								500	250

★ general residual current leakage circuit breaker breaking capacity table

Residual current	I △ n	2I △ n	5I △ n * a	10I △ n * b
The maximum breaking time (s)	0.3	0.15	0.04	0.04
a. For I △ n≤0.03 leakage breaker, 5I △ n available 0.25A replaced.
b. When you press a note using 0.25A, then 10I △ n is 0.5A.

★ general type residual current leakage circuit breaker breaking time Table & nbsp;

delay time (s)	biggest when I △ n Breaking time (S)	2I △ n		biggest when 5I △ n Breaking time (S)
		not driving time limits (S)	maximum breaking time (S)
0.1	0.3	0.08	0.27	0.14
0.2	0.4	0.18	0.37	0.24
0.3	0.5	0.28	0.47	0.34
0.4	0.6	0.38	0.57	0.44
0.5	0.7	0.48	0.67	0.54
1	1.2	0.98	1.17	1.04

★ leakage circuit breaker operating cycles and experimental parameters in line with Table 5 provides

protected species	load operating conditions			frame degree Rated Current (A)	operating cycles			operating hour Cycles
	ON	Breaking	cosφ		load	no-load	The total number of
motor protection	Un 6In	0.17Un 6In	0.35	40, 100	1500	8500	10000	120 times
Distribution Line	Un In	Un In	0.8	40, 100	1500	8500	10000	120 times

★ main circuit does not cause a malfunction of the overcurrent limit
☆ leakage circuit breaker when the multi-phase unbalanced load and balance the load, does not lead to malfunction of the overcurrent limit is 6In.
★ overcurrent trip protection features
Distribution Protection Features ★ leakage protection circuit breaker overcurrent trip in Table
Within 1h tripping

ambient air temperature	test current/rated current of	test time		initial state
		In & gt; 63A	In≤63A
	1.05	within 2h Not trip	not trip within 1h	cold start
+ 30 ± 2 ℃	1.30	within 2h trip		Hot start

★ motor protection circuit breaker overcurrent trip leakage protection performance Table

ambient air temperature	test current / rated current of	test time	initial state
+ 20 ± 2 ℃	1.05	within 2h Not trip	cold start
	1.20	within 2h trip	Hot start
- 5 ± 2 ℃	1.05	within 2h Not trip	cold start
	1.30	within 2h trip	Hot start
+ 40 ± 2 ℃	1.00	within 2h Not trip	cold start
	1.20	within 2h trip	Hot start

★ instantaneous overcurrent release current setting
☆ distribution circuit breaker instantaneous overcurrent trip current setting is 10In, motor protection circuit breaker instantaneous overcurrent trip current setting is 12In, its accuracy is ± 20%.

five, DZ15LE breaker structure and working principle

DZ15LE leakage circuit breaker Department of electronic leakage circuit breakers, mainly by the zero-sequence current transformer, electronic control leakage release with overload and short circuit protection circuit breaker components. All parts packed in a plastic housing.
When the protection circuit leakage or physical shock, as long as the leakage current reaches the operating current value, the secondary winding zero sequence transformer outputs a signal and allows through leakage circuit breakers tripping, thereby cutting off the power play leakage and shock protection.
When the protection circuit overload or short circuit, the hydraulic release completion delay or instantaneous tripping leaving leakage circuit breaker action. Thereby cutting off the power play or short circuit overload protection.

Six, shape and installation dimensions

Type	Poles	Dimensions				dimensions
		A	B	C	D	a	b	mounting holes
DZ15L-40	3	78	194	88	73.5	25	180	4-5
	4	103	194	88	73.5	50	180	4-5
DZ15L-63	3	96	227	95	80	30	210	4-7
	4	126	227	95	80	60	210	4-7
DZ15LE-100	3	96	227	95	80	30	210	4-7
	4	126	227	95	80	60	210	4-7

Seven, ordering instructions

When ordering indicate the following points:
Product type and name: If DZ15LE MCCB
Instantaneous tripping Current Rating: such as 315A.
Breaker attachment names, specifications, combination code, adopted when the undervoltage release and shunt trip, should indicate the operating voltage (or control supply voltage) value;
Poles: 3P
Order number: as 380.
Ordering example: DZ15L -400/3300,4P, AC380V, 250A, 3500 只.