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◆Technical parameter
■Electric parameter
    a.Conforms to standards of:
                                                 
    b.Rated voltage (Ue): 230/400V;50/60Hz
    c.Rated breaking capacity Icu: 10kA (1-63A)
    d.short circuit breaking capacity: maximum 48V(M-L7…,10kA) single pole
                                                       maximum 250V(M-L7-DC,6kA) single pole
    e.Trip character istic: B.C.D characteristic curve
    f.100A gL(>10kA)Maximum connecting fuse: 100A gL (>10kA)
    g.3 Selectivity level: 3
    h.Working ambient temperature: -5℃~+40℃
    i.Case protection level: (after installation)
    j.Electrical life,is more than 8000 times of on-off operation
      Machine life is more than 20000 times of on-off operation
■Machinery parameter
    a.45mm exposed face length: 45mm
    b.80mm Case height: 80mm
    c.Case width:17.5mm each pole (single pole)
    d.Installation mode: use IEC standard guide 35mm
    e.Terminal mode: double function terminal can connect with busbar block and conductor
    F.Terminal connecting capacity: busbar 1-25mm2; busbar thickness 0.8-2mm

◆Outline size

■Besides the other announcement, two-pole switch width is two modules; four-pole switch width is four modules.

Having protection for over load and short circuit and power isolation function.
1pole 
2pole 
3pole 
4pole
Rated current In (A) Model Model Model Model
C characteristic curve
■5~10In Instantaneous trip 5~10In
■Mainly used in lighting or some motor circuits		 1 M-L7-1/1/C M-L7-1/2/C M-L7-1/3/C M-L7-1/4/C
2 M-L7-2/1/C M-L7-2/2/C M-L7-2/3/C M-L7-2/4/C
3 M-L7-3/1/C M-L7-3/2/C M-L7-3/3/C M-L7-3/4/C
4 M-L7-4/1/C M-L7-4/2/C M-L7-4/3/C M-L7-4/4/C
6 M-L7-6/1/C M-L7-6/2/C M-L7-6/3/C M-L7-6/4/C
10 M-L7-10/1/C M-L7-10/2/C M-L7-10/3/C M-L7-10/4/C
16 M-L7-16/1/C M-L7-16/2/C M-L7-16/3/C M-L7-16/4/C
20 M-L7-20/1/C M-L7-20/2/C M-L7-20/3/C M-L7-20/4/C
25 M-L7-25/1/C M-L7-25/2/C M-L7-25/3/C M-L7-25/4/C
32 M-L7-32/1/C M-L7-32/2/C M-L7-32/3/C M-L7-32/4/C
40 M-L7-40/1/C M-L7-40/2/C M-L7-40/3/C M-L7-40/4/C
50 M-L7-50/1/C M-L7-50/2/C M-L7-50/3/C M-L7-50/4/C
63 M-L7-63/1/C M-L7-63/2/C M-L7-63/3/C M-L7-63/4/C
D characteristic curve
■10~15In Instantaneous trip 5~10In
■Mainly used in motor or other high inductive circuits.		 2 M-L7-2/1/C M-L7-2/2/C M-L7-2/3/C M-L7-2/4/C
4 M-L7-4/1/D M-L7-4/2/D M-L7-4/3/D M-L7-4/4/D
6 M-L7-6/1/D M-L7-6/2/D M-L7-6/3/D M-L7-6/4/D
10 M-L7-10/1/D M-L7-10/2/D M-L7-10/3/D M-L7-10/4/D
16 M-L7-16/1/D M-L7-16/2/D M-L7-16/3/D M-L7-16/4/D
20 M-L7-20/1/D M-L7-20/2/D M-L7-20/3/D M-L7-20/4/D
25 M-L7-25/1/D M-L7-25/2/D M-L7-25/3/D M-L7-25/4/D
32 M-L7-32/1/D M-L7-32/2/D M-L7-32/3/D M-L7-32/4/D
40 M-L7-40/1/D M-L7-40/2/D M-L7-40/3/D M-L7-40/4/D
50 M-L7-50/1/D M-L7-50/2/D M-L7-50/3/D M-L7-50/4/D
63 M-L7-63/1/D M-L7-63/2/D M-L7-63/3/D M-L7-63/4/D

◆Product performance
■Conforms to standards of and ;
■Veracious current trip setting;
■Breaking capacity 10kA;
■High current limiting capacity and high selectivity;
■Two sides terminal is suitable for busbar block and single-core conductor
■Two sides all can use busbar block;
■Multifunctional accessory series;  
■Combined slot binding screw with big torque, binding quickly and firmly;
■Free power incoming line direction;
■DC products can be used in telecommunication or electric locomotive.
◆Scope of application
Used for DC circuit over load and short circuit protection. Especially for communication, electric power and locomotive industry.           
Rated current In(A) Model Model

Rated breaking capacity:

C characteristic curve
■Instantaneous trip 5~10In

 

Note: Don't misconnect power
positive-negative pole. Or it
can not break fault current.

 1 M-L7-1/1/C-DC M-L7-1/2/C-DC
2 M-L7-2/1/C-DC M-L7-2/2/C-DC
3 M-L7-3/1/C-DC M-L7-3/2/C-DC
4 M-L7-4/1/C-DC M-L7-4/2/C-DC
6 M-L7-6/1/C-DC M-L7-6/2/C-DC
10 M-L7-10/1/C-DC M-L7-10/2/C-DC
13 M-L7-13/1/C-DC M-L7-13/2/C-DC
16 M-L7-16/1/C-DC M-L7-16/2/C-DC
20 M-L7-20/1/C-DC M-L7-20/2/C-DC
25 M-L7-25/1/C-DC M-L7-25/2/C-DC
32 M-L7-32/1/C-DC M-L7-32/2/C-DC
40 M-L7-40/1/C-DC M-L7-40/2/C-DC
50 M-L7-50/1/C-DC M-L7-50/2/C-DC

1 pole rated voltage

2 poles rated voltage


◆ Load capacity
■For 1 pole L7 series
■In relevant temperature and n switches working state allowed load: IDL=InKT (T)KN (N)

◆Energy consumption
■ Conforms to standards of ()

■M-L7, fuse D0 and NH short breaking capacity
■1.4 high selectivity can be more than 1.4kA: □no selection function
Fuse wire D01, D02, D03 selectivity

Fuse wire NH-00 selectivity

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