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INTRODUCTION

TXM1B DC Circuit Breaker is used for low-voltage power generation, transmission and distribution lines of rated voltage of DC 12~500V, , rated current of 60A-600A to provide isolation, overload and short circuit protection, DC MCCB can also be used for infrequent making and breaking of circuits under normal circumstances.
The DC Circuit Breaker are widely used in photovoltaic power generation systems, wind power generation systems, roof building power generation systems, rail transit power distribution systems and infrastructure construction and other low-voltage DC generation.
TXM1B DC circuit breaker can be mounted vertically (upright) or horizontally (transverse).
TXM1B DC circuit breaker meets the standard: IEC60947-2 "low-voltage switchgear and control equipment, Part 2: circuit breakers.”

Voltage DC
Poles 1P 2P
Breaking Capacity 25kA
Withstand Voltage DC 12~500V DC 12~500V
Wiring Diagram

Remarks: ①The circuit breaker has no polarity, and the positive and negative poles can be switched.
②Cable wiring can be entered at the bottom and exit at the top, and can be entered at the top and exit at the bottom

ELECTRICAL TECHNICAL PARAMETERS

Rated Current 80A,100A,125A,160A,200A,250A,300A,350A,400A,500A,600A
Poles 1P / 2P
Rated Voltage Ue DC12V-500V
Insulation Volage Ui 800V
Rated Impulse Withstand Voltage
(1.2/50)Uimp
6kV
Rated Breaking Capacity (lcs) 15kA
Rated Operating Short-circuit Breaking Capacity Icu (kA) 100% Icu
Protection Class IP20
Thermo-Magnetic Release Characteristic A-Curve (8-12In)
Electrical Life 2000
Mechanical Life 4000
Installation Panel Screw Installation
Ambient Temperature -5°C ~ +70°C
Terminal Connection Type Hexagon Screw
Tightening Torque 5.0N.m
Adapter Cable 10-200mm² 7-4/0AWG
International Standard IEC60947-2
Arcing Distance ≤50MM
Use Category A

NORMAL OPERATING CONDITIONS

● Ambient air temperature: -5~+40°C, and average temperature in 24h is below +35°C.
● Altitude: The altitude of the installation site is not more than 2000m.
● Atmospheric conditions: The air relative humidity in the highest temperature +40°C is not more than 50%; In the low temperature can have higher relative humidity. The maximum average relative humidity is 90%, while the average monthly minimum temperature is +25°C, and consider the temperature changes in product on the surface of the gel.
● Pollution Degree: 3.

TRIPPING CHARACTERISTIC CURVE

TEMPERATURE COMPENSATION

When the ambient temperature is not a benchmark of 30 degrees , the reference correction factor is as folows .

Ambient Temperature -20°C -10°C 0°C 10°C 20°C 30°C 40°C 50°C 60°C
Current Correction Coefficient 1.25 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85

CONNECTION

Rated Current Minimum Adapter Copper Wire
100A 35 MM² / 2AWG
125A 50 MM² / 0AWG
160A 70 MM² / 00AWG
200A / 225A 95 MM² / 000AWG
250A 120 MM² / 0000AWG
300A / 350A 185 MM² / 2×000AWG
400A 240 MM² / 2×0000AWG
500A 2×150 MM² / 3×000AWG
600A 2×185 MM² / 4×000AWG

DIMENSION

Model H (MM) H1 (MM) W (MM) L (MM)
TXM1B-100A-1P 86 62 38 150
TXM1B-100A-2P 86 67 65 150
TXM1B-125A-1P 86 62 38 150
TXM1B-125A-2P 86 67 65 150
TXM1B-160A-1P 108 85 43 166
TXM1B-160A-2P 108 85 74 164
TXM1B-200A-1P 108 85 43 166
TXM1B-200A-2P 108 85 74 164
TXM1B-225A-1P 108 85 43 166
TXM1B-225A-2P 108 85 74 164
TXM1B-250A-1P 108 85 43 166
TXM1B-250A-2P 108 85 74 164
TXM1B-300A-1P 108 85 43 166
TXM1B-300A-2P 108 85 74 164
TXM1B-350A-1P 108 85 43 166
TXM1B-350A-2P 108 85 74 164
TXM1B-400A-1P 108 85 43 166
TXM1B-400A-2P 108 85 74 164
TXM1B-500A-1P 153 105 80 256
TXM1B-500A-2P 153 105 148 260
TXM1B-600A-1P 153 105 80 256
TXM1B-600A-2P 153 105 148 260

OUTLINE AND INSTALLATION DIMENSIONS

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