Product Description

 DC Circuit Breaker MR11-63 Series    MR11-63 DC circuit breaker is used in rated DC voltage to 1000V, rated current to 63A line, which plays the role of overload and short circuit protection, and can be used as the infrequent on-off of the line under normal circumstances.
Compliance with standards :GB/T 14048.2, IEC 60947-2, EU ROHS environmental requirements, CCC, CE, EAC, TUV certification.

Ambient Temperature: -35°C ~ +60°C
 Relative Humidity: ≤95%
Altitude: ≤2000m
Overcurrent Protection Characteristics (Reference Temperature 30°C)

 

Technical Parameter Item	Parameter Value
Rated Voltage (Ue)	DC 125V/250V(1P), DC 250V/500V(2P), DC 500V/1000V(4P)
Rated Current (In)	1A, 2A, 3A, 4A, 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Rated Insulation Voltage (Ui)	1000V
Rated Impulse Withstand Voltage (Uimp)	4kV
Number of Poles	1P, 2P, 4P
Instantaneous Trip Type	C(7~10)In
Rated Ultimate Short-circuit Breaking Capacity (Icu)	6kA(1P 250V/2P 500V/4P 1000V), 10kA(1P 125V/2P 250V/4P 500V)
Overcurrent Protection Characteristics	See Table 2, Figure 1
Mechanical and Electrical Life	Mechanical Life: 20000 cycles, Electrical Life: 1500 cycles
Current Correction Factor at Different Temperatures	Table 3
Current Correction Factor at Different Altitudes	Table 4
Connecting Conductor	Table 5
Tightening Torque	2.0N·m
Power Consumption	Table 6
Wiring Diagram	Figure 2
Outline and Installation Dimensions	Figure 3, Figure 4
Pollution Degree	Class 2
Protection Degree	IP20
Installation Category	Class II, Class III

Current Correction Values at Different Ambient Temperatures(Table 3)
 Current Correction Coefficients at Different Altitudes(Table 4)
Trip Characteristic Curve (Figure 1)Wiring: Suitable for copper conductors up to 25mm² (Table 5). Wiring method is screw tightening with a torque of 2.0N·m.
Power Consumption per Pole (Table 6)Application Wiring Diagram ( Figure 2)

Wiring diagram description:
1), +: circuit breaker positive pole, -: circuit breaker negative pole.
2),L+:Positive pole of power supply, L-:Negative pole of power supply.
3), : load.
4) DC power supply usually "L-" grounded, positive and negative power system polarity "M" grounded.
4.11 Product characteristics:
4.11.1 Excellent breaking capacity.
4.11.2 Dual wiring function of conductor and busbar.
4.11.3 Energy storage operation, fast closing, long life.
4.11.4 Easy installation and removal.
4.11.5 Contact on-off indication, higher safety.
4.11.6 Green environmental protection and energy saving.
5. It is strictly prohibited to remove the sealing plug of the four-pole product for wiring operation