Datasheet

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3
3120-N... Thermal Circuit Breaker
1846
1
3120-N... Thermal Circuit Breaker
Order numbering code
Type No.
3120 thermal rocker-actuated circuit breaker
Mounting method
N3 snap-in, mounting cut-out 50.5 x 21.5 mm
N5 snap-in, mounting cut-out 44.5 x 22 mm
Number of poles
1 1-pole switching, 1-pole protected
2 2-pole switching, 2-pole protected
5 2-pole switching, 1-pole protected
Style
4 with water splash protection (IP65)
Terminal design
PT push-in terminals
P7 blade terminals
H7 as P7, terminals 11 and 21 with flat head
screws M3.5 - standard for units with
undervoltage release module
N7 as P7, with additional shunt terminals 12(i)
and 22(i)
G7 as N7, terminals 11 and 21 with additional flat
head screws M3.5
Trip curve
T1 thermal trip
Actuator
W rocker
Rocker colour and illumination
01 . black without illumination
02 . white without illumination
04 . red without illumination
12 . Y white with illumination
14 . R red with illumination
15 . Y orange with illumination
16 . T blue with illumination
19 . G green with illumination
Marking of rocker actuator
D
F
K
L
X
Illumination voltage range
(= operating voltage)
1 DC 12 V
2 DC 24 V
3 AC 115 V
4 AC 230 V
5 DC 48 V
Rated current
0.1 ... 20 A
3120-N5 2 4 - PT T1-W 19 D G 4 - 16 A ordering example
Please observe our minimum ordering quantities.
Cut-out for mounting style -N3.4
Mounting style
Cut-out for mounting style -N5.4
-0.2
-0.4
1-5
±0.05
±0.05
-0.2
-0.4
+1
min. 49
min. 55
+1
44.5
+0.2
+0.5
22
+0.3
50.5
+0.3
+0.5
21.5
+0.3
1-3.5
Schematic diagrams
Mounting method
11
21
line
12(i)
12(k)
22(i)
22(k)
load
12(k)
load
11
line
12(i)
12(k)
22(i)
load
11
21
line
12(i) 22(i)
2-pole,
thermally protected
2-pole,
1-pole thermally protected
1-pole,
thermally protected
D F K L X
Custom designed versions
Looking for a version you cannot find in our ordering number code?
Please get in touch. We will be pleased to find a solution for you.