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  • SYM3Z-250 DC Moulded Case Circuit Breaker
Low Voltage Switch Element & Switchgear

SYM3Z-250 DC Moulded Case Circuit Breaker

SYM3Z-250 DC...

  • Product Introduction
  • Product Features
  • Technical Parameters

Product Introduction

SYM3Z-250 DC moulded case circuit breaker (hereinafter referred to as MCCB) is used for DC power supply with rated voltage of 1000V and rated current of 250A and below. MCCB can distribute electric power and protect circuit and power supply device from overload, short circuit or other faults.

 

Product Features

SYM3Z-250 MCCB has the advantages of good arc extinguishing performance, high reliability and convenient operation and maintenance. It can guarantee the safe and reliable operation of the DC system.

 

Technical Parameters

产品型号含义

Note: SYM3Z-250 MCCB has four poles in appearance, and the internal series series wiringof 3+1 has been made. The wiring mode is shown in figure 1.

 

Essential Parameters of SYM3Z-250 MCCB

Essential parameters of SYM3Z-250 MCCB is shown in Table 1.

              Table 1 Essential parameters of SYM3Z-250 MCCB 

No. Item Unit Parameter
1 Rated Insulation Voltage Ui V 1000
2 Rated Operating VoltageUe DC 1000
Phase to Phase, Phase to Earth, Break
3 Rated Impulse Withstand Voltage Uimp 8000
3 Rated CurrentIn A 100、125、140、160、180、200、225、250
4 Rated Ultimate Short-circuit Breaking Capacity Icu kA DC 40
5 Rated Service Short-circuit Breaking Capacity Ics DC 20
6 Flashover Distance mm ≯50
7 Number of Pole / 4
4
8 Installation Method Horizontal Installation & Vertical Installation
9 Wiring Method Front-panel Wiring & Back-panel Wiring

 

 

附件代号及名称和安装位置见表2。

                    表2 附件代号