ETZM PV Molded Case DC Circuit Breaker

Scope of Application

The ETZM-PV Series PV DC Circuit Breaker is suitable for DC power grid circuits with ratedvoltage up to DC1,500V and rated current up to 800A. The DC Circuit Breaker features suchfunctions as long delay overload protection and short-circuit instantaneous protection,which is used to distribute electrical energy and protect lines and power equipment fromoverload, short circuit and other faults.The actuator of the DC Circuit Breaker has fast closing and fast breaking functions, with acompact structure, a small size, and user-friendliness.

Working Environment

The altitude shall be 2,000m or below, and reduced capacity is required for use if above2,000m. For other special requirements,please contact the manufacturer;It can withstand the influence of humid air (Anti-moisture, anti-salt spray, and anti-moldtype) 1;

It can withstand the influence of salt or oil mist (Anti-moisture, anti-salt spray, and anti-mold type);

It can withstand the influence of mold (Anti-moisture, anti-salt spray, and anti-moldtype);

Used in media which have neither explosion risks nor contain any gas or conductivedust that is sufficient to corrode metals anddamage insulation.

Note: 1 Please indicate “TH” for an anti-moisture, anti-salt spray, and anti-mold type.

Electrical Technical Parameters

Model		ETZMDC-250	ETZMDC-320	ETZMDC-400	ETZMDC-630	ETZMDC-800
Rated Continuous Current Inm		250	320	400	630	800
Rated Current In (A)		63、125、140、190、180、200、225、250	280、315、320	250、280、315、320、350、400	400、500、630	630、700、800
Rated Current In (A)		63、125、140、190、180、200、225、250	280、315、320	250、280、315、320、350、400	400、500、630	630、700、800
Rated Working Voltage Ue (V) DC		250V、500V、750V、1000V、1250V、1500V	250V、500V、750V、1000V、1250V、1500V	250V、500V、750V、1000V、1250V、1500V	250V、500V、750V、1000V、1250V、1500V	250V、500V、750V、1000V、1250V、1500V
Rated Insulation Voltage Ui (V)		1250V(2P)、1500V(3P)	1250V(2P)、1500V(3P)	1500V	1500V	1500V
Rated Impulse Withstand Voltage Uimp (V)		8kA(2P)、12kA(3P)	8kA(2P)、12kA(3P)	12kA	12kA	12kA
Limit Short Circuit Breaking Capacity (kA)Icu=Ics	250V	40kA/2PExternal Type	40kA/2PExternal Type	(H)70kA、(R)85kA/2PExternal Type	(H)70kA、(R)85kA/2PExternal Type	(H)70kA、(R)85kA/2PExternal Type
	500V	40kA/2PExternal Type	40kA/2PExternal Type	(H)70kA、(R)85kA/2PExternal Type	(H)70kA、(R)85kA/2PExternal Type	(H)70kA、(R)85kA/2PExternal Type
	750V	20kA/2PExternal Type	20kA/2PExternal Type	(H)30kA、(R)40kA/2PExternal Type	(H)30kA、(R)40kA/2PExternal Type	(H)30kA、(R)40kA/2PExternal Type
	1000V	20kA/3PExternal Type	20kA/3PExternal Type	(H)30kA、(R)40kA/2PExternal Type	(H)30kA、(R)40kA/2PExternal Type	(H)30kA、(R)40kA/2PExternal Type
	1250V	20kA/3P External Type Connected to 2P in Series	20kA/3P External Type Connected to 2P in Series	(H) 15kA / (R) 20kA/2P External Type Connected to 2P in Series	(H) 15kA / (R) 20kA/2P External Type Connected to 2P in Series	(H) 15kA / (R) 20kA/2P External Type Connected to 2P in Series
	1500V	20kA/3P External Type Connected to 2P in Series	20kA/3P External Type Connected to 2P in Series	(H)15kA、(R)20kA/2P External Type	(H)15kA、(R)20kA/2P External Type	(H)15kA、(R)20kA/2P External Type
				(H)15kA / (R) 25kA/3P External Type Connected to 3P in Series	(H)15kA / (R) 25kA/3P External Type Connected to 3P in Series	(H)15kA / (R) 25kA/3P External Type Connected to 3P in Series
				(H) 20kA / (R) 25kA/3P External Type Connected to 3P in Series	(H) 20kA / (R) 25kA/3P External Type Connected to 3P in Series	(H) 20kA / (R) 25kA/3P External Type Connected to 3P in Series
Mechanical Life	Total Number of Operations	10000	10000	8000	8000	6000
Electrical Life	Total Number of Operations	8000	8000	6000	6000	3000
Total Breaking Time (ms)		15	15	15	15	15
Installing Position		Anywhere
Does it have isolation characteristics		Yes
Standard		IEC60947-2 / IEC60947-1 / GB14048.1 / GB14048.2
Permissible Ambient Temperature (℃)		-25℃~+50℃
Protection Rating		IP20
Attachment Available		Auxiliary / Alarm / Shunt / Manual actuator / Electrical actuator / Mechanical interlocking
Flashover Distance (mm)		≥50
Instantaneous Action Value		12In
Installation Method		Fixed / Plug-in

Attachment Code

Attachment Name	Without Attachment	Alarm Contact	Shunt Tripper	Auxiliary Contact	Undervoltage Tripper	Auxiliary Contact of Shunt Tripper	Undervoltage/Shunt Tripper	Two Sets of Auxiliary Contacts	Auxiliary Contact of Undervoltage Tripper	Alarm Contact of Shunt Tripper	Alarm Contact of Auxiliary Contact	Alarm Contact of Undervoltage Tripper	Auxiliary/Alarm Contact of Shunt Tripper	Two Sets of Auxiliary/Alarm Contacts	Auxiliary Contact/Alarm Contact/Undervoltage Tripper
Code	00	08	10	20	30	40	50	60	70	18	28	38	48	68	78

Overall Dimension Chart (mm)

Dimension Category	Dimension Code	ETZM3DC-320HU (DC1000V 2-pole)	ETZM3DC-320HU (DC1500V 3-pole)	ETZM3DC-400/630/800HU (DC1500V 2-pole)
Shell Dimension	L	180	180	250
	L1	160	160	218
	L2/L3	90	65/90	65/100
	W	76	107	124
	W1	35	35	58
	E	24	24	56
	F	50.5	50.5	76
	H	97.5	97.5	123
	H1	126	126	163
	H2	29.5	29.5	60
	H3	29.5	29.5	60
	H4	1	1	1.5
	H5	6	6	6.5
Installing Dimension	A	141	141	200
	B	35	35	58
	Φd	4.2	4.2	6.5

Overall Dimension Diagram (mm)