Datasheet
Thermal Overcurrent Circuit Breaker 3120-F...
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Issue D
2 - 68
2
0
I
I
0
ON
OFF
ADFX
Type No.
3120  rocker switch/circuit breaker
  Mounting
 F  snap in frame
 Size of frame
 3  to fit mounting cut-out 50.5 x 21.5 mm       
      panel thickness: 1-6.35 mm (.039-.250 in)
 5  to fit mounting cut-out 44.5 x 22 mm       
      panel thickness: 1-4 mm (.039-.157 in)
 7  to fit mounting cut-out 45 x 33.7 mm       
      panel thickness: 1.2-2.4 mm (.047-.094 in)
  Number of poles
   0  2-pole, unprotected, switch only
  1 1-pole, thermally protected
  2  2-pole, thermally protected
  5 2-pole, 1-pole thermally protected
   Mounting frame design (F3 & F5)
   1  collar height 1 mm
   3  collar height 9 mm
   4  collar height 2 mm with water splash protection (IP54)
   Mounting frame design (F7)
   R 
black
   T  black with snap-on splash cover
    Terminal configuration
    P7 
blade terminals, standard for curve T1   
      (thermal circuit breaker)
    H7 as P7, terminals 11 and 21 with flat head screws M3.5 
            – standard for units with undervoltage release module
    N7 as P7, but with additional shunt terminals 12(i) and 22(i) – 
            standard for version Q1 (switch only)
      Characteristic curve
      T1  thermal 1.01 - 1.4 x I
N
      Q1 switch only
        Actuator style
        W
 standard rocker (F3 & F5)
        A  specially designed rocker (F7)
         Colour and Illumination
         01 . 
rocker black opaque  
          without illumination
         02 . 
rocker white opaque  
          without illumination
         04 . 
rocker red opaque without illumination
         14 . R  rocker red translucent with   
          LED-illumination
         15 . Y  rocker orange translucent with 
          LED-illumination
         19 . G  rocker green translucent with  
          LED-illumination
          Rocker markings for F3 and F5
          A 
          D
          F
          Q
          X       
           Rocker markings for F7
          Q  
 »I« and »O« moulded in
           Illumination voltage range 
           1  10 - 14 V DC 
           2  20 - 28 V DC 
           3  90 - 140 V AC 
           4  185 - 275 V AC
           Current ratings
           0.1...20 A
3120 - F  7  2  R -  P7 T1 - A  14 Q R 4 - 10 A ordering example
3120 - F  .  0  . -  N7 Q1 - W ..  . . . - 20 A (switch)
Ordering information
Q: as D, but   
moulded in
X: without markings
Preferred types 
F7/2-pole 
protected
Standard current ratings (A)
0.511.52345681012151620
3120-F72R-P7-
T1-A14QQR4-
xxxxxx xxxxxxxx
Dimensions
33
1.30
.453
15.5
15.5
25
44.2
-0.2
flat head screw ISO1580 M3.5x5-MS
tightening torque max. 0.8 Nm
blade terminals DIN 46244-C-Ms-S
(QC 2 x .110)
8.9
33
10.7
21
10
3
3.5
41
12(i) 12(k) 11
48
±0.2
3
LINE
34
44.8
10
12(i) 12(k) 11
11.5
LINE
18.6
60
.984
.610
1.89
±.008
1.74
-.008
.118
1.30
.350
.421
.827
.118
.138
.394
.610
1.61
1.76
2.36
1.34
.732
.394
.827
blade terminals DIN 46244-C-Ms-S
(QC 2 x .110)
10.7
21
.421
15.5
3
41
.118
.138
.610
1.61
3.5
Style F7.R
Style F7.T
flat head screw ISO1580 M3.5x5-MS
tightening torque max. 0.8 Nm
Preferred types Standard current ratings (A)
Preferred types 
F3/1-pole protected
0.512345681012151620
3120-F311-P7T1-
W02D-
x x xxxx x x
Preferred types 
F3 /2-pole protected
0.512345681012151620
3120-F321-P7T1-
W01D-
xxxxx xxxxxxxx
Preferred types 
F5/2-pole protected
0.512345681012151620
3120-F521-P7T1-
W01D-
xxxx xxxxxxxx
Preferred types
Preferred types
WE
N
WE
N





