SUPPLEMENTARY
PROTECTORS
WMS Series
l 1, 2, 3 Pole Models
l 1 to 30 Amp Ranges
l 3 Different Trip Curves to
Choose From
l CSA 22.2
WMS1C20SP
WMS3C20SP
WMS2C20SP
All models shown
smaller than actual size.
Offering maximum reliability and accuracy,
the supplementary protectors fit various
applications where a fuse may have been
previously used. The advantage over fuses is
that it is resettable and the device’s status is
easily and clearly identified by the position of
the handle and the flag indicator. With easy
mounting of the device on a 35 mm (1.38")
DIN rail it is now easier for the customer to
select and apply this modular range, due
to the smaller modular width of the device
and accessories. The WMS supplementary
protector is a dual-rated product for both
AC and DC supplies, in accordance with
UL 1077, CSA 22.2 and IEC 898 standards
and is marked with CE in accordance with
the Low Voltage Directive. With this dual
standard product, you can include it within
your design, knowing that, in the vast
majority of cases wherever the equipment
is used, the product is in line with the local
UL, CSA or IEC (European) requirements.
This is very important as the different
areas of the world market draw closer
together and the need for breakers that meet
different standards is a common, everyday
occurrence. It is to be applied in conjunction
with a branch protector (if branch protection
is required) and can be a replacement for
similarly applied fuses. In addition to this,
you are able to select a device that provides
maximum reliability and accuracy to fit their
various applications (of which there are
many) due to the availability of a wide range
of current ratings from 0.5 to 60 amperes
and three different overcurrent characteristic
curves. With easy mounting of the device on
a 35 mm (1.38") DIN-rail and also the “Quick
3 Step” field mountable accessories, it is
now easier to select and apply this modular
range. In addition, utilizing the bus bar comb
to connect multiple devices from a single
power source, saves time as multiple wire
connections are no longer required. Due to
the smaller modular width of the device and
accessories, it enables them to save space
in their panel or equipment—which directly
leads to cost savings!
IEC RATING
AMPERE
RATING CURVE VOLTS AC IEC 898, I
0.5 to 5 C, D 240/415 10,000 10,000
50 to 60 B, C, D 240/415 10,000 10,000
SHORT CIRCUIT CAPACITY
IEC 947-2, I
CN
UL/CSA RATING
AMPERE NUMBER
RATING OF POLES CURVE VOLTS AC UL 1077 CSA 235
6 to 60 1 B 120 10,000 10,000
0.5 to 60 1 C, D 120 10,000 10,000
6 to 60 2, 3, 4 B 240 10,000 10,000
0.5 to 60 2, 3, 4 C, D 240 10,000 10,000
6 to 60 1 B 277 6000 6000
0.5 to 60 1 C, D 277 6000 6000
6 to 60 2, 3, 4 B 480 5000 5000
0.5 to 60 2, 3, 4 C, D 480 5000 5000
SHORT CIRCUIT CAPACITY (A)
CU
1
DC RATING
75°
(0.43)
11
7
(0.28)
15
(0.59)
62
(2.44)
44
(1.73)
85
(3.48)
45
(1.77)
18
(0.71)
7
7
(0.28)
15
(0.59)
68
(2.68)
54
(2.13)
31
(1.22)
44
(1.73)
4
(0.16)
75°
7
(0.43)
11
7
(0.28)
15
(0.59)
62
(2.44)
44
(1.73)
85
(3.48)
45
(1.77)
18
(0.71)
7
(0.28)
7
(0.28)
15
(0.59)
68
(2.68)
54
(2.13)
31
(1.22)
44
(1.73)
4
(0.16)
54
(2.13)
75°
7
(0.43)
11
7
(0.28)
15
(0.59)
62
(2.44)
44
(1.73)
85
(3.48)
45
(1.77)
18
(0.71)
7
(0.28)
7
(0.28)
15
(0.59)
68
(2.68)
54
(2.13)
31
(1.22)
44
(1.73)
4
(0.16)
36
(1.42)
54
(2.13)
75°
7
11
7
(0.28)
15
(0.59)
62
(2.44)
44
(1.73)
85
(3.48)
45
(1.77)
18
(0.71)
7
(0.28)
7
(0.28)
15
(0.59)
68
(2.68)
54
(2.13)
31
(1.22)
44
(1.73)
4
(0.16)
35
(1.38)
35
(1.38)
9
(0.35)
9
(0.35)
35
(1.38)
35
(1.38)
9
(0.35)
9
(0.35)
AMPERE NUMBER
RATING OF POLES CURVE VOLTS DC UL 1077 CSA 235
0.5 to 63 1 B, C, D 65 10,000 10,000
0.5 to 63 2 B, C, D 130 10,000 10,000
SHORT CIRCUIT CAPACITY (A)
CABLE SIZE AND TORQUE SETTING - WMS SERIES
AMPERE
RATING mm2 AWG Nm lb/in
0.5 to 60 1 to 25 14 to 6 2.8 24.8
CABLE SIZE TIGHTENING TORQUE
Dimensions: mm (inch)
18
(0.71)
Standards and Certifications
UL recognized under UL 1077
l
lCSA 22.2
lIEC 898
lIEC 60947-2
Product Description
Dual standard breaker: recognized by
l
UL and CSA under UL 1077 and CSA 22.2
lThird-party approved by KEMA
according to IEC 898
lCE marked in accordance with Low
Voltage Directive (LVD) (73/23/EEC)
lUsed to provide overcurrent protection
where branch protection
(for example UL 489 MCCB) is already
provided or not required
lInstalled as a component within or part
of an appliance or a piece of electrical
equipment
lIdeal replacement for fuses that are
applied as a supplementary protector,
i.e., in addition to branch protection
(if required)
l 35 mm (1.38") DIN-rail mountable,
utilizing metallic “extra strength”
spring clip
2
36
(1.42)
54
(2.13)
lLight gray case with gray handle, that is
marked “O” for OFF and “I” for ON
lUL file number E162396
lCSA file number LR105508-2
Application Description
Cutler-Hammer supplementary protectors
are ideal for providing protection in a
multitude of applications, including:
lMotor control circuits
lControl power transformers
lRelays
lContactor coils
lPLC I/O points
lLighting circuits
Features, Benefits and Functions
Current limiting design provides fast
l
short circuit interruption that reduces
the let-through energy which can
damage the circuit.
lThermal-magnetic overcurrent protection:
Three levels, categorized by B, C and D
curves in direct relation to continuous
rating of device
–B Curve—3 to 5X: Suited for applications
where maximum protection is required for
control circuits from low level short circuit
faults that could damage the wiring.
45
(1.77)
–C Curve—5 to 10X: Is positioned for
medium inrush startup currents, to provide
protection for small transformers, pilot
devices, etc.
–D Curve—10 to 20X: Provides a magnetic
range to allow for higher inrush levels during
startup, that are usually seen with motors,
transformers and other high inductive
systems.
lColor-coded status indicator
window—Red = ON or Green = OFF
lIP20 finger protection.
lProvision for dual connection—
line and load:
–Fork or pin bus bars
–Cable direct into terminal
–Cable utilizing ring tung connector
l 35 mm (1.38”) DIN-rail mountable,
utilizing “extra strength” spring clip
Field-Mountable Accessories
Quick 3-step process
l
lNo tools required
lAuxiliary switch
lCombined auxiliary switch and bell alarm
lShunt trip
62
(2.44)
(1.73)
44
85
(3.48)
1-Pole
2-Pole
3-Pole
To Order Visit omega.com/wms_protectors for Pricing and Details
1-POLE
AMPERE MODEL NO. MODEL NO. MODEL NO.
RATING CURVE B CURVE C CURVE D
1 WMS1C01SP N/A
2 WMS1C02SP WMS1D02SP
3 N/A WMS1C03SP WMS1D03SP
4 WMS1C04SP WMS1D04SP
5 WMS1C05SP WMS1D05SP
6 WMS1B06SP WMS1C06SP WMS1D06SP
7 WMS1B07SP WMS1C07SP WMS1D07SP
8 WMS1B08SP WMS1C08SP WMS1D08SP
10 WMS1B10SP WMS1C10SP WMS1D10SP
13 WMS1B13SP WMS1C13SP WMS1D13SP
15 WMS1B15SP WMS1C15SP WMS1D15SP
16 WMS1B16SP WMS1C16SP WMS1D16SP
20 WMS1B20SP WMS1C20SP WMS1D20SP
25 WMS1B25SP WMS1C25SP WMS1D25SP
30 WMS1B30SP WMS1C30SP WMS1D30SP
2-POLE
AMPERE MODEL NO. MODEL NO. MODEL NO.
RATING CURVE B CURVE C CURVE D
1 WMS2C01SP N/A
2 WMS2C02SP WMS2D02SP
3 WMS2C03SP WMS2D03SP
4 WMS2C04SP WMS2D04SP
5 WMS2C05SP WMS2D05SP
6 WMS2B06SP WMS2C06SP WMS2D06SP
7 WMS2B07SP WMS2C07SP WMS2D07SP
8 WMS2B08SP WMS2C08SP WMS2D08SP
10 WMS2B10SP WMS2C10SP WMS2D10SP
13 WMS2B13SP WMS2C13SP WMS2D13SP
15 WMS2B15SP WMS2C15SP WMS2D15SP
16 WMS2B16SP WMS2C16SP WMS2D16SP
20 WMS2B20SP WMS2C20SP WMS2D20SP
25 WMS2B25SP WMS2C25SP WMS2D25SP
30 WMS2B30SP WMS2C30SP WMS2D30SP
3-POLE
AMPERE MODEL NO. MODEL NO. MODEL NO.
RATING CURVE B CURVE C CURVE D
1 WMS3C01SP N/A
2 WMS3C02SP WMS3D02SP
3 WMS3C03SP WMS3D03SP
4 WMS3C04SP WMS3D04SP
5 WMS3C05SP WMS3D05SP
6 WMS3B06SP WMS3C06SP WMS3D06SP
7 N/A WMS3C07SP N/A
8 N/A WMS3C08SP WMS3D08SP
10 WMS3B10SP WMS3C10SP WMS3D10SP
13 N/A WMS3C13SP N/A
15 WMS3B15SP WMS3C15SP WMS3D15SP
16 N/A WMS3C16SP WMS3D16SP
20 WMS3B20SP WMS3C20SP WMS3D20SP
25 WMS3B25SP WMS3C25SP WMS3D25SP
30 WMS3B30SP WMS3C30SP WMS3D30SP
N/A
N/A
N/A
3
WST220A, shown
actual size.
WAX1A1B shown
actual size.
WPKEY shown
slightly smaller
than actual size.
WAL1A1B shown
actual size.
WPLK shown slightly smaller
than actual size.
ACCESSORIES
MODEL DESCRIPTION
WAL1A1B Alarm 1A/1B, 240V, 6A
WAX1A1B Auxiliary 1A/1B, 240V, 6A
WIDL-120PK Identification label (120 per carton)
WPKEY Padlock and keys
WPLK Padlock provision
WST220A Shunt trip, 120 to 220 Vac
WST415A Shunt trip, 240 to 415 Vac
WST48D Shunt trip, 12 to 48 Vdc
WMS SERIES ACCESSORY TECHNICAL DATA
MODEL AUXILIARY AUXILIARY SHUNT ELECTRICAL CABLE SIZE TIGHTENING TORQUE
NUMBER SWITCH ALARM TRIP UVR CHARACERISTICS MM2 AWG NM LB-IN
WAL1A1B 1 changeover contact
No Yes No No 240V ~ 6 A 0.5 to 4 18 to 12 0.8 7.1
WAX1A1B 2 changeover contact
Yes No No No 240V ~ 6 A 0.5 to 4 18 to 12 0.8 7.1
WST415A No No Yes No 230 to 415V/110 to 130V 0.5 to 4 18 to 12 0.8 7.1
WST48D No No Yes No 9 to 48V/48V 0.5 to 4 18 to 12 0.8 7.1
WST220A No No Yes No 110V/220V 0.5 to 4 18 to 12 0.8 7.1
WUVR240A No No No Yes 240V~ /110 to 130V 0.5 to 4 18 to 12 0.8 7.1
WUVR48D No No No Yes 48V/24 to 48V 0.5 to 4 18 to 12 0.8 7.1
Ordering Examples: WMS1B06SP, one pole, curve B, 6 A supplementary protector.
WMS3D30SP, three pole, curve D, 30 A supplementary protector and WAL1A1B, alarm.
4
10,000
1000
100
10
1
0.1
0.01
110
Current in Multiple of Rated Current
sdnoceS ni emiT
Supplementary Protectors — WMS
Data Sheet Number — 66C1235
100
10,000
1000
100
10
1
0.1
0.01
110
Current in Multiple of Rated Current
sdnoceS ni emiT
Supplementary Protectors — WMS
Data Sheet Number — 66C1236
100
10,000
1000
100
10
1
0.1
0.01
110
Current in Multiple of Rated Current
sdnoceS ni emiT
Supplementary Protectors — WMS
Data Sheet Number –— 66C1237
100
Curve B Time/Current Characterisitc
Curve D Time/Current Characterisitc
Curve C Time/Current Characterisitc
WMS3C20SP,
shown actual size.
5
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