Omega Products WMS1B07SP User Manual

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

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)

DC RATING

75°

(0.43)

(0.28)

(0.59)

(2.44)

(1.73)

(3.48)

(1.77)

(0.71)

(0.28)

(0.59)

(2.68)

(2.13)

(1.22)

(1.73)

(0.16)

75°

(0.43)

(0.28)

(0.59)

(2.44)

(1.73)

(3.48)

(1.77)

(0.71)

(0.28)

(0.59)

(2.68)

(2.13)

(1.22)

(1.73)

(0.16)

(2.13)

75°

(0.43)

(0.28)

(0.59)

(2.44)

(1.73)

(3.48)

(1.77)

(0.71)

(0.28)

(0.59)

(2.68)

(2.13)

(1.22)

(1.73)

(0.16)

(1.42)

(2.13)

75°

(0.28)

(0.59)

(2.44)

(1.73)

(3.48)

(1.77)

(0.71)

(0.28)

(0.59)

(2.68)

(2.13)

(1.22)

(1.73)

(0.16)

(1.38)

(0.35)

(1.38)

(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)

(0.71)

Standards and Certifications

UL recognized under UL 1077

l lCSA 22.2 lIEC 898 lIEC 60947-2

Product Description

Dual standard breaker: recognized by

l

UL and CSA under UL 1077 and CSA 22.2

lThird-party approved by KEMA

according to IEC 898

lCE marked in accordance with Low

Voltage Directive (LVD) (73/23/EEC)

lUsed to provide overcurrent protection

where branch protection (for example UL 489 MCCB) is already provided or not required

lInstalled as a component within or part

of an appliance or a piece of electrical equipment

lIdeal 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

(1.42)

(2.13)

lLight gray case with gray handle, that is

marked “O” for OFF and “I” for ON

lUL ﬁle number E162396 lCSA ﬁle number LR105508-2

Application Description

Cutler-Hammer supplementary protectors are ideal for providing protection in a multitude of applications, including:

lMotor control circuits lControl power transformers lRelays lContactor coils lPLC I/O points lLighting 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.

lThermal-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.

(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.

lColor-coded status indicator

window—Red = ON or Green = OFF

lIP20 ﬁnger protection. lProvision 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 lNo tools required lAuxiliary switch lCombined auxiliary switch and bell alarm lShunt trip

(2.44)

(1.73)

(3.48)

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