Cutler Hammer, Div of Eaton Corp WMZS Technical Specifications
UL 1077 DIN Rail Supplementary Protectors
WMZS Circuit Breakers
Technical Data
Description B Curve C Curve D Curve
Electrical
Approvals UR (UL 1077), CSA (CSA 22.2 No. 235), CE
Standards IEC/EN 60947-2
Short-Circuit Trip Response 3 x 5 I
n
Supplementary Protectors — UL / CSA
Current Range 6 – 63A 0.5 – 63A 0.5 – 40A
Maximum Voltage Ratings — UL / CSA
1-Pole
2-, 3-Pole
2 Poles in Series
277 Vac
48 Vdc
480Y/277 Vac
125 Vdc
Thermal Tripping Characteristics
Single-Pole
Multi-Pole
1.35 x I
@ 40°C
n
1.45 x In @ 40°C
Short-Circuit Ratings (at Max. Voltage)
1-Pole
2-, 3-Pole
1-Pole
2 Poles in Series
10 kA (5 kA for 40–63A Device)
10 kA (5 kA for 40–63A Device)
10 kA @ 48 Vdc
10 kA @ 125 Vdc
Miniature Circuit Breaker — IEC
Current Range 6 – 63A 0.5 – 63A 0.5 – 40A
Maximum Voltage Ratings — IEC 60947-2
1-Pole
2-, 3-Pole
230 Vac
48 Vdc
230/400 Vac
Maximum Voltage Ratings — IEC 60898
1-Pole
2-, 3-Pole
240 Vac
48 Vdc
240/415 Vac
Thermal Tripping Characteristics
Single-Pole
Multi-pole
> 1 Hour @ 1.05 x I
< 1 Hour @ 1.3 x I
n
n
Interrupt Ratings (at Max. Voltage)
IEC 60947-2
IEC 60898
Operational Switching Capacity
Max. Back-Up Fuse [gL/gG]
Rated Impulse Withstand—U
Rated Insulation Voltage—U
i
imp
15 kA
10 kA
7.5 kA
125A
4000 Vac
440 Vac
Environmental / General
Selectivity Class
Lifespan (Operations)
Shock (IEC 68-2-22)
Operating Temperature Range
Shipment & Short-Term Storage
Housing Material
3
> 10000 (1 operation = ON/OFF)
10g–120 ms
+23 – +104°F (-5 – +40°C)
-40 – +185°F (-40 – +85°C)
Nylon
Mechanical
Standard Front Dimension
Device Height
Terminal Protection
Mounting Width per Pole
Mounting
Degree of Protection
Terminals Top and Bottom
Supply Connection
Terminal Capacity [mm
2
Torque
Imperial Torque
]
80 mm
Finger and Back-of-Hand Proof to IEC 536
17.7 mm
IEC/EN 60715 Top-Hat Rail
IP20
Twin-Purpose Terminals
Line or Load Side
1 x 25 (AWG 4 – 18) / 2 x 10 (AWG 8 – 18)
2.4 Nm
21 lb-in (AWG 18 – 12), 25 lb-in
(AWG 10 – 8), 36 lb-in (AWG 6 – 4)
Thickness of Bus Bar Material
Mounting Position
0.8 – 2 mm
As Required
5 x 10 I
n
277 Vac
48 Vdc
480Y/277 Vac
125 Vdc
1.35 x In @ 40°C
1.45 x In @ 40°C
10 kA (5 kA for 40–63A Device)
10 kA (5 kA for 40–63A Device)
10 kA @ 48 Vdc
10 kA @ 125 Vdc
230 Vac
48 Vdc
230/400 Vac
240 Vac
48 Vdc
240/415 Vac
> 1 Hour @ 1.05 x I
< 1 Hour @ 1.3 x I
n
n
15 kA
10 kA
7.5 kA
125A
4000 Vac
440 Vac
3
> 10000 (1 operation = ON/OFF)
10g–120 ms
+23 – +104°F (-5 – +40°C)
-40 – +185°F (-40 – +85°C)
Nylon
80 mm
Finger and Back-of-Hand Proof to IEC 536
17.7 mm
IEC/EN 60715 Top-Hat Rail
IP20
Twin-Purpose Terminals
Line or Load Side
1 x 25 (AWG 4 – 18) / 2 x 10 (AWG 8 – 18)
2.4 Nm
21 lb-in (AWG 18 – 12), 25 lb-in
(AWG 10 – 8), 36 lb-in (AWG 6 – 4)
0.8 – 2 mm
As Required
10 x 20 I
277 Vac
48 Vdc
480Y/277 Vac
125 Vdc
1.35 x In @ 40°C
1.45 x In @ 40°C
5 kA
5 kA
10 kA @ 48 Vdc
10 kA @ 125 Vdc
230 Vac
48 Vdc
230/400 Vac
240 Vac
48 Vdc
240/415 Vac
> 1 Hour @ 1.05 x I
< 1 Hour @ 1.3 x I
15 kA
10 kA
7.5 kA
125A
4000 Vac
440 Vac
3
> 10000 (1 operation = ON/OFF)
10g–120 ms
+23 – +104°F (-5 – +40°C)
-40 – +185°F (-40 – +85°C)
Nylon
80 mm
Finger and Back-of-Hand Proof to IEC 536
17.7 mm
IEC/EN 60715 Top-Hat Rail
IP20
Twin-Purpose Terminals
Line or Load Side
1 x 25 (AWG 4 – 18) / 2 x 10 (AWG 8 – 18)
2.4 Nm
21 lb-in (AWG 18 – 12), 25 lb-in
(AWG 10 – 8), 36 lb-in (AWG 6 – 4)
0.8 – 2 mm
As Required
TECHNICAL DATA
n
n
n
Technical Data
eaton corporation UL 1077 DIN Rail Supplementary Protectors
11
UL 1077 DIN Rail Supplementary Protectors
WMZS Circuit Breakers
TECHNICAL DATA
Technical Data
Description
Electrical
Contact Function
Rated Operational Voltage U
n
Voltage Range WMZSST110 — 12 – 110 Vac
Voltage Range WMZSST415 — 110 – 415 Vac
Closing Threshold [x U
Tripping Threshold [x U
] — — 0.8
n
] — — 0.5
n
Rated Frequency ƒ 50/60 Hz 50/60 Hz 50/60 Hz
General Use (UL / CSA)
AC—230/240 Vac
DC—110/120 Vdc
Pilot Duty A600 / Q600 — —
Conventional Free Air Thermal Current I
th
Rated Operational current
AC-13 I
AC-15 I
DC-13 I
Rated Insulation Voltage U
Minimum Operating Voltage per Contract U
Rated Impulse Withstand Voltage (1.2/50μ) U
e
e
e
i
min
imp
Rated Conditional Short-Circuit Current with 6A Back-Up Fuse I
Max. Admissible Back-Up Fuse 4A gL — —
Mechanical
Standard Front Dimension 45 mm 45 mm 45 mm
Technical Data
Device Height 80 mm 80 mm 80 mm
Mounting Width 8.8 mm 17.6 mm 17.8 mm
Mounting On MCB IEC/EN 60715 Top-Hat Rail IEC/EN 60715 Top-Hat Rail
Degree of Protection
Enclosed IP40 IP40 IP40
Terminal Protection Protection Against
Terminals Lift Terminals Twin-Purpose Terminals Twin-Purpose Terminals
Terminal Capacity
Solid
Flexible
Tightening Torque of Terminal Screws 0.8 – 1.0 Nm (7 – 9 lb-in) 2.4 Nm (21 lb-in) 0.8 Nm (7 lb-in)
WMZSAUX
WMZSAUXTRIP WMZSST WMZSUVR
1A + 1B
2 C/O
—
—
—
—
250 Vac — 115 Vac — WMZSUVR115
230 Vac — WMZSUVR230
400 Vac — WMZSUVR400
—
12 – 60 Vdc
—
110 – 230 Vdc
2 / 2A
0.5 / 0.5A
—
—
—
—
4A — —
3A (250 Vac)
2A (250 Vac)
0.5A (110 Vdc)
—
—
—
—
—
—
250 Vac — —
5 Vdc — —
2.5 kV — —
1 kA — —
SC
Electric Shock to IEC 536
0.5 – 2.5 mm
0.5 – 2.5 mm
2
2
Protection Against
Electric Shock to IEC 536
1 – 2.5 mm
1 – 2.5 mm
2
2
Protection Against
Electric Shock to IEC 536
2 x (1 – 2.5) mm
2 x (1 – 2.5) mm
2
2
12
eaton corporation UL 1077 DIN Rail Supplementary Protectors
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