Design Number

  • DC non-polarized
  • Low temperature rise
  • VO (UL94) flame-retardant materials used for the case
  • All current-carrying parts are copper
  • ROHS compliant
  • Versatile accessory options
  • Instrumentation parts are all made of stainless steel

Function And Scope Of Application

Suntree DC MCB SL7N-63 series PV miniature circuit breaker is a current limiting circuit breaker with overload and short circuit protection, overload and short circuit protection for DC systems with voltage DC1200V and below.

Widely used in DC panels, DC distribution cabinets, DC convergence boxes, distribution box systems for energy storage, PV and wind power stations, and communication distribution box protection systems.

It can also be used for infrequent on/off conversion of lines under normal conditions.

Product Model

ModelAppearanceCharacteristicCurrent AVoltage VWiring MethodOptional accessoriesAccessory nameAccessory name
SL7N-631PI:15–OF
20F
SD
OF+SD
SL7N-631PII:24–
SL7N-631PIII:48–
SL7N-631PIV:60–
SL7N-631P6V:100
SL7N-631P10VI:180H
SL7N-631P16Default:250H
SL7N-632P20II:24HMX
MX+OF
OF+MX+OF
20F+MX+OF
SD+MX+OF
OF+SD+MX+OF		I:DC12V
II:DC24V-48V
III:DC110V-400V
IV:AC220V-380V
SL7N-632P25III:48H
SL7N-632PB\C32IV:125H
SL7N-632P40V:375G
SL7N-632P50Default:250G
SL7N-632P63VI:550G
SL7N-632PVII:600G
SL7N-632PVIII:800G
SL7N-633PDefault:750H
SL7N-633PI:900H
SL7N-634PDefault:1000GOF+MN
SD+MN
OF+SD+MN		AC230V
AC400V
SL7N-634PI:1200G

Main Technical Parameters

ItemsTechnical parameters
Rated insulation voltage (U1)1250V
Rated operati0nal voltage (Ue)DC(1P):15V, 24V, 48V, 60V, 100V, 180V, 250V;
DC(2P):24V, 48V, 125V, 375V, 500V, 550V, 600V, 800V
DC(3P): 750V, 900V; DC(4P): 1000V, 1200V
Frame rated current63A
Different current of the same frame (In)6A. 10A, 16A. 20A, 25A. 32A, 40A, 50A, 63A
Number of poles1P, 2P, 3P. 4P
Rates service short-circuit breaking capacity (Ics)6kA (2P 800V 4P 120oV) 2kA
Rates ultimate short-circuit breaking capacity (Icu)6kA (2P 800V 4P 120oV) 2kA
Mechanical life20000 times
Electrical life10000 times (≤DC125V/1P, ≤DC250V/2P), 1500 times (other voltage specifications)
Cert1ficateCE, IEC, CB, TUV
Suitable for fishbone connector wiring and wire wiringSuitable for fishbone connector wiring and wire wiring
Rated impulse with stand voltage (Uimp)6kV
Tripping characteristicsB/C
Release typeThermomagnetic
Overvoltage levelIII
Pollution degree3
Protection DegreesIP40:IP20 for wiring port
Moisture resis1anceClass II
Relative humidity≤95%
Standards compliantIEC60749-2 GB/T14048.2
Shock resistanceAccording to I EC60068-2-6
Anti-mechanical shock parametersAccording to IEC60068-2-27
Operating ambient temperature-30°C~70°C
Heat & humidity resistant (IEC 60068-4)Db type (temperature 55°C, 6 cycles}
Storage ambient temperature-40°C~85°C
Installation methodDIN
Altitude≤2000m
Weight0.12kg/P
AccessoriesOF/SD/MX/MN/MX+OF
MX control voltage UsDC: 12V. 24V, 220V, AC: 110V, 220V, 3380V power supply recommended not less than 75W
MN rated voltage UnAC220V

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