Cutler Hammer, Div of Eaton Corp E22 Series, EM22 Series Technical Specifications

March 2008

Pushbuttons & Indicating Lights

22.5 mm Heavy-Duty Watertight/Oiltight

E22 and EM22 Series, Technical Data and Specifications

47-29

Product Description

Eaton’s Cutler-Hammer® 22.5 mm
Industrial Heavy-Duty Pushbutton line
offers a wide array of functional,
smartly styled illuminated and non­illuminated pushbuttons, selector
switches, push-pulls, alternate action
and twist-to-release operators. The
complete line also includes trans­former, full voltage, resistor, LED or
neon light units.

E22 operators are available with either a
traditional chrome or matte black front­of-panel appearance. The space-saving
design and modular construction of the
E22 line makes on-the-job assembly
fast and simplifies the stocking of both
components and complete devices.

Eaton’s Cutler-Hammer EM22 Metal
Series is a rugged line of metal con­struction 22.5 mm pushbutton devices.
They are an extension of the industri­ally proven E22 Heavy-Duty Double
Insulated 22.5 mm pushbutton family.

EM22 operators are heavy-duty zinc
die-cast construction plated with a
corrosion resistant chromate finish.
Operators are complete with a very dura­ble chrome plated metal bezel. Indicating
light units in the EM22 Series feature
smartly styled round lenses that enhance
their appearance and brightness.

All EM22 operators are compatible
with existing E22 contact blocks, light
units, accessories and enclosures.

EM22 metal operators and indicating
lights are grounded when mounted to
metal panels through the toothed
mounting nut. They are not grounded
when mounted to plastic panels.

Features

E22 Operators:

■ Heavy-duty oiltight construction

■ Chrome metal or black nylon bezels

■ Snap-lock contact block mounting

EM22 Operators:

■ Heavy-duty zinc die-cast

construction

■ Metal mounting nut doubles as

grounding and anti-rotation device

■ Chrome-plated metal bezel (matte

black not available)

Common E22 & EM22 Features:

■ Reliability nibs on contact blocks

■ Plain or notched hole mounting

■ Direct opening action

normally closed contacts

■ Fingerproof terminals

Benefits

Plastic Devices

■ Modular construction makes assem-

bly fast and simplifies stocking of
components and complete devices

■ Reliability nibs provide positive con-

tact through light, medium or heavy
loads

■ Chrome finish and plastic construc-

tion are corrosion resistant

Metal Devices

■ EM22 is backwards compatible with

E22 operators

■ Metal mounting nut cuts through

painted surfaces to provide proper
grounding

■ Hands-free front of panel mounting

reduces installation cost

■ Mounting flexibility reduces installa-

tion cost, time and inventory

■ Stands up well in corrosive

environments

■ E22 and EM22 compatibility lowers

parts count and inventory
requirements

Contact Block Operation

Linear make and break. All normally
closed (NC) contacts are Direct Opening
Action, i.e., NC contacts are physically
forced open by direct linkage with the
pushbutton operator in the unlikely
event of contact weld.

The contact block contacts are provided
with “Reliability Nibs.” The precisely
shaped point of the nib, coined on the
silver contact alloy, penetrates dust,
film oxide layers and other contami­nants. This improves contact reliability
even under dry circuit and fine dust
conditions.

Logic level contact blocks are available
for low power switching — minimum
1 mA @ 5V DC.

Standards and Certifications

■ CE EN 60947-5-1

■ UL 508 — File No. E131568

■ CSA — File No. LR68551

Additional Certifications for
Trigger Action E-Stop Devices

■ UL Listed E-Stop Device — File No.

E217948

■ Machinery Safety Directive — EN418

■ Semiconductor Manufacturing

Equipment — SEMI S2-0200

■ DEMKO Third Party Certification —

Certificate Nos. 129648-01 and
129648-02

Technical Data and
Specifications

Ingress Protection

■ UL (NEMA) Type 1, 2, 3, 3R, 4, 4X, 12

and 13

■ IEC IP65

Note: Ratings apply when mounted in
enclosures with the same ratings.

Mechanical Endurance Ratings

■ Frequency of operation
❑ Pushbuttons – 6,000 operations/hr

❑ Push-Pulls – 3,000 operations/hr.
❑ Push-Push – 1,800 cycles/hr.
❑ Selector Switches – 3,000

operations/hr.

❑ Trigger-Action E-Stop – 360

cycles/hr.

❑ Twist-to-Release – 1,200 cycles/hr

■ Mechanical Life
❑ Contact Blocks – 3 million

operations

❑ Pushbuttons – 5 million opera-

tions

❑ Push-Pulls – 300,000 operations
❑ Push-Push – 300,000 operations
❑ Selector Switches – 500,000

operations

❑ Trigger-Action E-Stop – 100,000

operations

❑ Twist-to-Release – 300,000

operations

❑ Joysticks — 500,000 operations

■ Vibration (IEC 68-2 [BS 2011])
❑ Vibration – 5g/0.7 mm peak to

peak, 10 sweeps, 10 – 500 Hz

❑ Shock – 30g, 18 ms
❑ Bump – 25g, 6 ms for 1,000 cycle

47

CA08102001E For more information visit: www.eaton.com

47-30

21

Pushbuttons & Indicating Lights

22.5 mm Heavy-Duty Watertight/Oiltight

March 2008

E22 and EM22 Series, Technical Data and Specifications

47

Environmental Conditions

■ Operating temperature:

-4° to +140°F (-20° to +60°C)

■ Storage temperature:

-40° to +176°F (-40° to +80°C)

■ Altitude: Up to 6562 feet (2000m)

■ Pollution degree (IEC 947-1): 3

■ Humidity: Maximum 95% RH @ 60°C

Terminal Markings

All rear of panel devices are marked with the circuit configu­ration per CENELEC 50013 standards.

Table 47-29. Contact Blocks

Circuit Configuration Description Plunger

21

43

21

43

4A 3A

43

43

1NC Red

1NO Green

1NO-1NC White

2NO Green

1NO
Early Make

1NC
Late Break

Table 47-30. Lights Units

Circuit Configuration Description

X1 X2

X1 X2

Color

Black

Gray

Full Voltage

Resistor

Transformer

Electrical Ratings

Table 47-31. Contact Block

Meet or Exceed NEMA Contact Rating Designations A600 and Q600

Description A600 (AC) Volts Q600 (DC) Volts

Make and emergency
interrupting capacity
(Amp)

Normal load break (Amp) 6 3 1.5 1.2 0.55 0.27 0.1 0.1
Thermal current (Amp) 10 10 10 10 2.5 2.5 2.5 2.5



Ratings do not apply to rotary cam switches, see Ratings Page 47-95.

A600, Q600 per UL 508

■

■ AC15, DC13 per IEC 60947-5-1



120 240 480 600 125 250 440 600

60 30 15 12 0.55 0.27 0.1 0.1

Logic level contact blocks are UL A600, Q600 and IEC AC15,
DC13 rated and also have a minimum rating of 1 mA @ 5V DC.

■ Impulse withstand voltage (Uimp): 4 kV

Short Circuit Coordination to IEC/EN 60947-5-1

■ Rated conditional short circuit current: 1 kA

■ Fuse type: GE Power Controls TIA 10, Red Spot Type

gG, 10A, 660V AC, 460V DC, BS88-2, IEC 60269-2-1

Electrical Life

■ AC15 durability
❑ 120V, 6A – 1 x 10

■ DC13 durability
❑ 24V, 4A – 0.15 x 10

❑ 660V, 0.1A – 0.5 x 10

6

operations

6

operations

6

operations

Material

■ Housing, bezel, mounting rings: Glass filled nylon

■ Metal bezels: Chrome plated brass

■ Internal seal: Nitrile rubber

■ Panel gasket: Nitrile rubber

■ Illuminated lenses: Polycarbonate

■ Buttons: Polyester or polycarbonate

■ Contacts: Silver

■ Terminals: Brass

X2 X1

■ E22CB1, E22CB11, E22CB1E, E22B1 and E22B11 contact

blocks are marked with Direct Opening Action (DOA) Sym­bol “ “ per IEC 60947-5-1, Annex K and NEMA ICS 5, Part

6. For Mechanical Operating Parameters, see Page 47-69.

■ E22CB1, E22CB11 and E22CB1E contact blocks will be

marked as Suitable for Isolation per IEC 60947-5-1.

Contact Block Terminal Clamps

■ Clamp type: Self-lifting

■ Screw type: Plus/minus, captive

■ Wire range: 18 to 12 AWG (0.75 to 4.0 mm

■ Fingerproof protection: IP2X

■ Tightening torque: 7 lb-in (0.8 Nm)

2

)

For more information visit: www.eaton.com CA08102001E