Beckwith Electronics

Hamburg, Illinois 62045
(618) 232-1139

(618) 232-1172 fax

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EAO Switch

Series 71
Flush Mounting PCB Switching System-Oil & Watertight Switches and Indicators

Features:
Easy printed circuit board mounting, contact block mounts directly on PCB, no connector needed
Locking pins attach actuator to contact block
250 VAC/3 A to 5 VAC/10mA, 24 VDC/3 A
Minimum back of panel depth: 1.67"
Flush rectangular, square, and round bezels
Meet IP65 and NEMA 4 and 13 specifications

The new Series 71 switch line offers easy assembly, fast wiring, and a limited number of modular components that provide a broad range of products. The compact, flush mounting indicators, pushbuttons, rotary switches, and keylocks are available with rectangular, square, and round front bezels, plus a selection of lenses, rotary lens caps, and accessories. Legends can be engraved or in the form of film inserts. Actuators are connected to the front panel with a mounting nut; the contact block is soldered directly to the PCB. A locking pin connects the contact block to the actuator. There is no need tor PCB connectors or spacers between the PCB and the front panel. The locking pin (one supplied with each contact block) allows easy assembly and disassembly without special tools. Series 71 switches and indicators typically consist of the basic modular components as shown below. The keylock does not have a lens or rotary knob.

To order: New universal actuators and flush mounting bezels simplify assembling and ordering Series 71 switches and indicators. Simply select a pushbutton, indicator, rotary, or keylock actuator. Then combine the selected actuator with one of the flush mount bezels depending on front appearance (square, rectangular, or round; material; and color). Finish off the assembly by selecting a lens or lens cap, a lamp (if required), and a contact block.

Lamps, Lenses and Contact Blocks Not Included.

Order Lamps Seperately.

Specifications
Contact block Self-cleaning, double-break, snap-action, 2 x 0.6mm contact opening, gold-plated silver contacts, supplied with one or two 1 N.O., 1 N.C. contact elements
Rating min: 5 VAC/10 mA
max: 250 VAC/3A
24 VDC/3 A
Contact resistance (new) <50 m ohms
Insulation resistance >1012ohms
Electric Strength 2500 VAC, 50 Hz, 1 min. between all terminals and ground
Operations (Cycles) Pushbutton 2-million
Rotary 100,000
Keylock 50,000
Sealing Front: IP 65, contact block: IP 40
Ambient temperature -25 to 55°C (-12 to 131°F)
Storage temperature -40 to 85°C (-40 to 185°F)
Soldering heat manual: 300°C (572°F)/10sec
flow: 260°C (500°F)/5 sec
Actuating force pushbutton: 2-3 N
Actuating torque rotary and keylock: 2.5-10 Ncm
Travel pushbutton: 3 mm
Rebound time <1 msec
Shock proof according to IEC 68-2-29 and -27
Eb 6-250-3000/3
Ea 18-300-18/3
Vibration resistance according to IEC 68-2-6
Ec 10'500-0.35/50-30/3
Climatic rating according to IEC 68-2-3


Momentary pushbutton actuator plus rectangular flush mount bezel and lens

2-position maintained rotary switch actuator plus flush mount round bezel and lens cap

3-position momenatry keylock actuator plus square flush mount bezel and key

2PST 1 N.O./1 N.C. contact block

Order Lamps Separately.

Series 71 Illuminated Pushbutton & Indicator Actuators
Order flush mount bezel, lens, lamp, and contact block or lamp element
Universal Actuator Part Number
Momentary pushbutton 71-611.0
Maintained pushbutton 71-612.0
Indicator sleeve 71-600.0

Square, Rectangular, and Round Flush Mounting Bezels
(Use with Series 71 Actuators)
Description Material Color Part Number
24 x 30 mm Rect. Plastic Black 61-9931.0
Plastic Chromium 61-9931.4
24 x 24 mm Square Plastic Black 61-9930.0
Plastic Black 61-9936.0*
Plastic Chromium 61-9930.4
25 mm diam. Round Aluminum Natural anodized 61-9933.0
Aluminum Natural anodized 61-9932.0*
Aluminum Black anodized 61-9933.1
Aluminum Black anodized 61-9932.1*
Plastic Black 61-9933.10
Plastic Black 61-9932.10*+

*Required for use with Series 71 rotary switch, no rectangular bezel available.
+Also for keylock
NOTE: Contact Beckwith Electronics for flush mounting panel cutouts
Protective Cover for Pushbuttons & Indicators
Black plastic
protective cover
Part Number
Rectangular Square Round
61-9922.0 61-9921.0 na

Pushbutton & Indicator Lenses
Material Rectangular
24 x 30 mm
Square
24 x 24 mm
Round
24 mm diam
Plastic
(former part no.)
61-9681.1 Solar Black
61-9681.2 Red
61-9681.3 Orange
61-9681.4 Yellow
61-9681.5 Green
61-9681.6 Blue
61-9681.7 Clear

61-9381.1 Solar Black
61-9381.2 Red
61-9381.3 Orange
61-9381.4 Yellow
61-9381.5 Green
61-9381.6 Blue
61-9381.7 Clear

61-9671.1 Solar Black
61-9671.2 Red
61-9671.3 Orange
61-9671.4 Yellow
61-9671.5 Green
61-9671.6 Blue
61-9671.7 Clear

61-9371.1 Solar Black
61-9371.2 Red
61-9371.3 Orange
61-9371.4 Yellow
61-9371.5 Green
61-9371.6 Blue
61-9371.7 Clear

61-9642.1 Solar Black
61-9642.2 Red
61-9642.3 Orange
61-9642.4 Yellow
61-9642.5 Green
61-9642.6 Blue
61-9642.7 Clear
Aluminum     61-9841.0 Opaque Black
61-9841.2 Red
61-9841.4 Yellow
61-9841.5 Green
61-9841.6 Blue
61-9841.8 Opaque Gray

Select color of lens: 2=Red, 4=Yellow, 5=Green, 7=Clear, 8=Natural anodized
Note: Clear available only in plastic; Natural anodized available only in aluminum.

Series 71 Contact Blocks
Description Contacts Part Number
Lamp element
for use with indicator
71-680.006
2 PST, 1 N.O./1 N.C.
for use with:
pushbutton
2-position rotary
2-position keylock
71-681.026
2 PST, 2 N.O./2 N.C.
for use with:
pushbutton
3-position rotary
3-position keylock
71-682.026

Series 71 Lighted Two- and Three-
Position Rotary Actuators

(Order lens cap, lamp, and contact block separately)
Description Positions Part Number
2-position
Momentary
71-641.0
2-position
Maintained
71-642.0
3-position
Momentary
at C & B
71-651.0
3-position
Maintained
at C & B
71-652.0
3-position
C Maintained
B Momentary
71-656.0
3-position
C Momentary
B Maintained
71-658.0

Rotary Lens Cap
Add color digit
Lens Cap with Transparent
Colored Window
Part Number
Black Lens Cap Gray Lens Cap
With indicating dot 52-9028.0 52-9029.0

Select color of transparent window: 0=Black, 2=Red, 3=Orange, 4=Yellow, 5=Green, 6=Blue, 8=Gray, 9=White. Black, Gray, and White are opaque.
Black cap not available with Gray window. Gray cap not available with Black window.
Do not use zero ("0") at end of part number for Black, Gray, or White.

Series 71 Accessories & Tools
Description Part Number
Panel plug, black plastic
rectangular
square
round
61-9452.0
61-9451.0
704-960.0
Mushroom cap, 32 mm diam., for round bezel 61-9593.0 Opaque Black
61-9593.2 Red
61-9593.4 Yellow
61-9593.5 Green
Legend plate, transparent plastic, 0.776" diam. 61-9707.7
Spare keys, Master key
Spare key, number 311
Spare Key, no. 312-445
31-989.300
31-989.311
31-989.
Mounting tool, brass
Lens remover, plastic
Lamp remover, plastic
Lens dismantling tool,plastic
01-907
61-9730.0
61-9740.0
61-9712.0
Select color: 0=Black, 2=Red, 4=Yellow, 5=Green
Select key number between 312 and 445

Two-Position Keylock Actuators

Momentary

Maintained
Switch
Action
Key
Removable
Part Number
Momentary A 71-621.0/D
Maintained A 71-622.0/D
Maintained C 71-623.0/D
Maintained A&C 71-624.0/D

Three Position Keylock Actuators

Action 1
Momentary
C & B

Action 2
Maintained
C & B

Action 3
Maintained C
Momentary B

Action 4
Momentary C
Maintained B

Key
Removable
Switch
Action
Part Number
A 1
2
3
4
71-631.0/D
71-632.0/D
71-636.0/D
71-638.0/D
C 2 71-633.0/D
A & B 4 71-639.0/D
A & C 3 71-637.0/D
B & C 2 71-634.0/D
A, B & C 2 71-635.0/D

Key Cover
Black Plastic
Key Cover
Part Number
Rectangular Square Round
61-9230.0 61-9220.0 61-9210.0