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All Categories > Single Plunger Push Button Switches > Item # 01920-001  
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Item # 01920-001, 1.00 inch Push Button with Key Lock

List Price $307.20


The following switch is a hand operated, key lockable, control circuit device, rated ‘Heavy Duty’ normally for use with electromagnetic equipment.  The black cover, painted with a dry powder paint, is made from die-cast zinc.  The black flat style plastic head is solid color throughout. 


  • Gold plated contacts eliminate high resistance tarnishing
  • Nema 12/13, IP 65 

Each captive terminal will accept (2) #14 AWG stranded wires.  Each switch is supplied with all mounting hardware and a solid neoprene rubber gasket which provides an oil tight seal upon installation.  The mechanical life of this device is 500,000 operations. 


This switch can be found on a variety of machines such as punch presses and press brakes as “RUN”, “START” or “STOP” buttons.  The rugged construction and long term reliability of this switch makes it extremely well suited to function within various industrial/commercial environments.


Electrical Ratings

“HEAVY DUTY – A600 / N300”

Listed under UL 508 – File # E 58589

Certified under CSA C22.2 – File # LR 3648

CE Compliant IEC/EN 60947-5-1

Third party certified under DEMKO File # FI-17205


Environmental Temperature Range

Operating:  +32oF to +131oF (0oC to +55oC)

Storage:  -40oF to +185oF (-40oC to +85oC)

Note:  Operating temperatures at 0oC are based on the absence of freezing moisture and liquids.


Normal Potential

Normal Current

Inrush Current

110-120 aca volts

6.0 amp.

60.0 amp.

220-240 aca

3.0 amp.

30.0 amp.

440-480 aca

1.5 amp.

15.0 amp.

550-600 aca

1.2 amp.

12.0 amp.

115-125 dcb

2.2 amp.


230-250 dcb

1.1 amp.


a  Power factor 0.35 or less

b  Inductive loads as specified in Section 125 of Industrial

   Control Devices, Controllers and Assemblies, ANSI /

   NEMA ICS 2-1988


These products should only be used where point-of-operation guarding devices have been properly installed & maintained so that appropriate OSHA and ANSI B11.1 regulations & standards are met.  Misapplication of the products on machinery lacking effective point-of operation safeguards can cause serious injury to the operator of that machinery.



Ces produit doivent seulement être utilisés sur des postes à risque correctement sécurisés et entretenus afin d’être conforme aux standards et régulations en vigueur (CSA, CLC). Un mauvais usage de ces produits sur des machines et des postes de travail non sécurisés de manière efficace peut causer des blessures graves au technicien maniant ces machines.


Plunger Style, Color

1.00" Flat, Black

Plunger Color


Cover Color


Operating Force

2.2 lb

Key/Plunger Operation Key Removeable Locked/Unlocked

Key locks plunger in depressed position ONLY

Positive Opening Contact

Contact Arrangement

#09 NO + NC

Contact Type

Slow Make / Slow Break

Operating Type


Approx. Shipping Weight

1.55 lb

Old Catalog Number



·  Dimensional Drawing

·  Contact Arrangement

·  Back View


Warning - Danger
(PDF, 77KB)

Glossary of Common Terms
(PDF, 234KB)

Single Plunger Product Line Review
(PDF, 419KB)

Rating Codes
(PDF, 28KB)

Single Plunger Installation Instructions
(PDF, 174KB)


Standard and Large Enclosures 1
Standard and Large Enclosures

Ring Guards 1
Ring Guards

more available ..

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