447-K-H-FN-125A E-T-A, 447-K-H-FN-125A Datasheet - Page 2

• Manufacturer Part Number: 447-K-H-FN-125A
• Description: CIRCUIT BREAKER THERM 125A PNLMT
• Manufacturer: E-T-A
• Series: 447r

Specifications of 447-K-H-FN-125A

• Breaker Type: Thermal
• Voltage: 28VDC
• Current - Trip (it): 125A
• Number Of Poles: 1
• Actuator Type: Push to Reset
• Mounting Type: Panel Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 447-K-H-FN-125AMP; 447KHFN-125A; 447KHFN-125A; 447KHFN-125AMP; Q1504821C

4
This is a metric design and millimeter dimensions take precedence ( mm )
4 - 32
447-…
Circuit breakers with remote disconnection facility will trip 10% faster.
Dimensions
10000
0.001
blade terminal DIN 46244-C-MS-S
flat head screw ISO 1580-M3.5x5
tightening torque max. 0.55 Nm
1000
0.01
100
0.1
10
1
+167 °F
+75 °C
1
N/O 6/7
N/C 4/5
2
… times rated current
current rating in A
4 6 8 10
High Performance Thermal-Magnetic Circuit Breakers 446/447/449
.433
AUS OFF
11
+73.4 °F
+23 °C
20
EIN ON
2.36
4.17
6.69
43.5
1.02
1.38
3.94
1.71
ø26
106
100
170
140
5.51
60
35
40
60 80 100
AUS OFF
DC
.787
ø20
hex nut M8 or 5/16"-18-NC
14 mm/.551 in. usable thread length
tightening torque max. 3.5 Nm
-55 °C
-67 °F
.472
12
hex screw
ISO 4017-M12x30-Cu2-E1P
Typical time/current characteristics
FA-terminal (8)
hex nut
ISO 4032-M12-Cu2-E1P
tightening torque
max. 4.5 Nm
449-…
inch
10000
0.001
1000
0.01
lock washer
DIN 137-B12-
X12CrNi 177
100
0.1
10
1
125 … 400 A
1
www.e-t-a.com
2
… times rated current
4 6 8 10
Internal connection diagrams
Typical time/current characteristics at +23 °C/+73.4 °F
446-...
10000
0.001
20
1000
0.01
100
0.1
10
1
40
1
60 80 100
line 1
DC
I >
2
2
… times rated current
4 6 8 10
449-…
10000
8
0.001
1000
0.01
100
0.1
20
10
FA
1
500 A (50% ON duty/60 min) DC
1
40
60 80 100
line 1
DC
2
I >
… times rated current
2
4 6 8 10
5
4
Si
7
20
6
recommended
link for FA coil
protection
40
Issue B
60 80100