Cutler Hammer, Div of Eaton Corp WMZ Technical Specifications
Technical Data
UL 489 DIN Rail Miniature Circuit Breakers
WMZ Circuit Breakers
TECHNICAL DATA
Miniature Circuit Breakers WMZ
Connection Diagrams
1-pole
2-pole
3-pole
Miniature Circuit Breakers WMZ
Description
Electrical
Design According to UL 489, CSA C22.2 No.5, IEC 60947-2
Rated Voltage WMZT
UL/CSA
UL/CSA
UL/CSA
IEC 947-2
Rated Voltage WMZD
UL/CSA 10 kAIC at 125 Vdc per pole (2 poles max)
Rated Voltage WMZH
UL/CSA
IEC 947-2
Rated Frequency 50/60 Hz
Rated Breaking Capacity WMZT
UL/CSA
IEC 947-2
Rated Breaking Capacity WMZH
UL/CSA
IEC 947-2
Technical Data
Characteristic C, D
Endurance ≥ 20,000 Operations
Line Voltage Connection Suitable for Reverse Feed
10 kAIC at 277/480V from 0.5A to 32A
10 kAIC at 240 Vac for 40A
10 kAIC at 48 Vdc per pole
15 kAIC at 240/415 Vac
10 kAIC at 250 Vdc with 2 poles connected
in series
14 kAIC at 277/480V at listed amperages
15 kAIC at 240/415 Vac
10 kA
15 kA
14 kA
15 kA
Mechanical
Frame Size 45 mm
Device Height 105 mm
Device Width 17.7 mm per Pole
Mounting Quick Fastening with Two Lock-In Positions
Upper and Lower Terminals Open Mouth/Lift Terminals
Terminal Capacity 1 Wire
Terminal Fastening Torque AWG 18-21: 21 lb-in
Mounting Independent of Position
Calibration Temperature
UL 489, CSA C22.2 No.5
IEC 60947-2
on IEC/EN 60715
2 Wires
AWG 10-8: 25 lb-in
AWG 6: 36 lb-in
40°C
30°C
AWG 18 – 6
AWG 18 – 10
Dimensions (mm)
5.5
105
4.7
3.4
3.9
4.3
3.6
4.3
5.6
3.5
4.3
4.2
5.3
7.1
5.6
6.4
8.7
9.3
9.0
10.2
11.0
12.1
44
60
1.6
0.8
1.0
1.0
1.2
1.4
1.5
1.2
1.4
1.2
1.5
2.0
1.5
1.7
1.8
2.6
2.7
3.1
3.8
3.9
17.7
Power Loss at l
Characteristic C Characteristic D
I
[A]
n
0.5
1
1.5
2
3
4
5
6
7
8
10
13
15
16
20
25
30
32
35
40
n
1-Pole 2-Pole 3-Pole 1-Pole 2-Pole 3-Pole
P [W] P [W] P [W] P [W] P [W] P [W
1.6
1.1
1.3
1.4
1.2
1.4
1.9
1.2
1.4
1.4
1.8
2.4
1.9
2.1
2.9
3.1
3.0
3.4
3.7
4.0
3.2
2.2
2.6
2.8
2.4
2.9
3.7
2.3
2.8
2.8
3.6
4.7
3.8
4.3
5.8
6.2
6.0
6.8
7.4
8.1
3.2
1.5
2.1
2.1
2.4
2.9
2.9
2.3
2.8
2.4
3.0
4.1
3.1
3.5
3.7
5.1
5.4
6.2
7.6
7.8
45
10
4.8
2.3
3.1
3.1
3.6
4.3
4.4
3.5
4.3
3.7
4.5
6.1
4.6
5.2
5.5
7.7
8.1
9.3
11.3
11.6
10
EATON CORPORATION UL 489 DIN Rail Miniature Circuit Breakers
UL 489 DIN Rail Miniature Circuit Breakers
Load Factor KT [I/I
]
WMZ Circuit Breakers
TECHNICAL DATA
Influence of Ambient Temperature T on Load Carrying Capacity
Device Market
Current Rating
I
(A) at 40°C
n
0.5
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
8.0
10.0
13.0
15.0
16.0
20.0
25.0
30.0
32.0
40.0
I
(A) at Higher Ambient Temperature
n
15°C 20°C 25°C 30°C 40°C 50°C 55°C 60°C
0.6
1.1
1.7
2.2
3.3
4.4
5.5
6.6
7.7
8.8
11.0
14.3
16.5
17.6
22.0
27.5
33.0
35.2
44.0
0.5
1.1
1.6
2.2
3.2
4.3
5.4
6.5
7.6
8.6
10.8
14.0
16.2
17.3
21.6
27.0
32.4
34.6
43.2
0.5
1.1
1.6
2.1
3.2
4.2
5.3
6.4
7.4
8.5
10.6
13.8
15.9
17.0
21.2
26.5
31.8
33.9
42.4
0.5
1.0
1.6
2.1
3.1
4.2
5.2
6.2
7.3
8.3
10.4
13.5
15.6
16.6
20.8
26.0
31.2
33.3
41.6
0.5
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
8.0
10.0
13.0
15.0
16.0
20.0
25.0
30.0
32.0
40.0
0.5
1.0
1.4
1.9
2.9
3.8
4.8
5.8
6.7
7.7
9.6
12.5
14.4
15.4
19.2
24.0
28.8
30.7
38.4
0.5
0.9
1.4
1.9
2.9
3.8
4.7
5.6
6.6
7.5
9.4
12.5
14.1
15.0
18.8
23.3
28.2
30.1
37.6
0.5
0.9
1.4
1.8
2.8
3.7
4.6
5.5
6.4
7.4
9.2
12.0
13.8
14.7
18.4
23.0
27.6
29.4
36.8
Technical Data
N
Maximum Load I
Ambient Temperature T [°C]
at ambient temperature T: IL (T) = IN KT(T)
L
12
eaton corporation UL 489 DIN Rail Miniature Circuit Breakers
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