Momentary Switches
Waterproof Momentary Contact Switches, Hand Actuated
Our waterproof momentary contact switches are totally submersible and are designed to preserve seal integrity even during activation over a long life. Our switch design utilizes an extremely robust snap-action contact mechanism protected by Mil-Grade Neoprene or industrial grade Santoprene casings. This basic waterproof momentary switch design is incorporated into our E Series limit switch brackets and actuators, and it can also be ordered as a stand-alone waterproof pushbutton switch (a “pendant style” switch).Momentary Switch Product Types
Our momentary contact switches come in a variety of form factors and contact options allowing them to be used in a tremendous variety of military and industrial applications. We’re proud of how tough these switches are, they last, they’re reliable, and they are 100% designed and manufactured in the USA..
And our momentary switches are truly waterproof, not “water resistant”, or “moisture immune”. Our exclusive Santoprene and Neoprene sealing process produces switches of ultra-high seal integrity along with a wide dynamic operating temperature range that has been certified to commonly required industrial and military specifications.
How To Purchase
directly form the Websites of
our major distributors
For quotes on production
quantities or special orders please
contact factory sales directly at
(973) 264-4208
Momentary Switches – Pendant Style
Pendant Switches – Momentary Contact
- B5 Series– standard actuation
- B7 Series– light-touch actuation
- B9 Series– low-temp Santoprene (ideal for E1 Limit Brackets)
- B2 Series– MIL-grade Neoprene, overmolded
Internal Lever Pendant Switches
Really a specialized type of pendant switch, this switch family was developed to meet the needs of welders. These switches are sealed in Neoprene and feature a larger actuator and a “v-back” for easy mounting on pipes and tubing. K1 Series– MIL-C rated, Neoprene V-Back, for pipe mount
Waterproof Plunger Switches
Our panel mount waterproof plunger switches use any of our B series momentary switch types which are then mounted into an all-stainless steel casing with a thermoplastic mounting bushing and plunger. D1 Series– panel-mount plunger switch.
Momentary Switch Design Parameters
If you have a high performance application that requires use of a momentary switch for a tough outdoor environment with potential extremes of high or low temperature, then you are probably going to need more than just switch waterproofing. CPI’s design team is experienced at trading off the many conflicting design requirements necessary to achieve an overall goal for MTBF, cost, and electrical parameters that meets almost any momentary switch operating specification.
Some of the design considerations for our switches include the following:
- Operating Temperature Range. CPI has engineered our switches to avoid contact “freezing” at operating temperatures down to -20F.
- Contact travel and pre-travel – These critical parameters affect MTBF directly and must be adjusted to achieve the specified cycle lifetime
- Mechanical Endurance – CPI has achieved MTBF of over 1 million cycles rated for high dynamic temperature environments, with careful design of mechanical switch parameters, and new manufacturing techniques for sealing.
- Actuator Style – The actuator used for our momentary switch configurations can be specified: either plunger, lever, roller ball, or hand actuated pendant style switches. All with unique engineering challenges to achieve an overall requirement.
- Circuit type – Normally Open/Closed and current requirements can be specified for any switch we build, including the challenge of designing for high startup loads.
- Mounting & Packaging. CPI provides a wide variety of packaging options with any switch. Each present unique challenges for design and operation.
At CPI our engineering team has made and manufactured custom switches for industrial, aerospace and military environments, for over 40 years. Our partnership with OEM’s goes beyond just design but carries through to the manufacturing and field qualification of our units to achieve all program goals.
Make the Switch to CPI
If your momentary switch application demands high performance, we think you should demand CPI.
Please call us today to speak with our engineering team about your needs.
Electrical Ratings 28VDC / 120VAC 5A resistive, 3A inductive
Endurance: (12VDC / 120VAC Resistive) | |
2A, 5A | 100,000 cycles |
10A, 15A | 25,000 cycles |
*Extended life versions available up to 5 million cycles. (load dependent) | |
Operating Temperature: | |
Santoprene Seal | -40°F to 221°F |
Neoprene Seal | -65°F to 165°F |
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Hi-Endurance Waterproof Switch – SPDT, Simulated Roller Actuator
$20.75 /ea Add to cart -
Hi-Endurance Waterproof Switch – SPDT, Roller Lever Actuator, E1117
$22.00 /ea Add to cart -
E1134 bracket with SPDT waterproof switch, 24″ wires, 16AWG
$31.00 /ea Add to cart -
High Endurance Waterproof Switch, SPDT Extended Lever Actuator, E1264
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Waterproof Pendant Switch, High Endurance B7151-18
$14.00 /ea Add to cart -
B5111 Normally Open, Low Pushbutton Switch
$10.00 /ea Add to cart -
B5112 Normally Closed, Low Pushbutton Switch
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B5113 SPDT, Low Pushbutton Switch
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B5114 Normally Open, Low Pushbutton Switch
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B5115 Normally Closed, Low Pushbutton Switch
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B5116 SPDT, Low Pushbutton Switch
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B5131 Normally Open, Medium Pushbutton Switch
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B5132 Normally Closed, Medium Pushbutton Switch
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B5133 SPDT, Medium Pushbutton Switch
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B5134 Normally Open, Medium Pushbutton Switch
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B5135 Normally Closed, Medium Pushbutton Switch
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B5136 SPDT, Medium Pushbutton Switch
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B5151 Normally Open, High Pushbutton Switch
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B5152 Normally Closed, High Pushbutton Switch
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B5153 SPDT, High Pushbutton Switch
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B5154 Normally Open, High Pushbutton Switch
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B5155 Normally Closed, High Pushbutton Switch
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B5156 SPDT, High Pushbutton Switch
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B7111 Normally Open, Low Pushbutton, Low Force
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B7112 Normally Closed, Low Pushbutton, Low Force
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B7113 SPDT, Low Pushbutton, Low Force
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B7114 Normally Open, Low Pushbutton, Low Force
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B7115 Normally Closed, Low Pushbutton, Low Force
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B7116 SPDT, Low Pushbutton, Low Force
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B7131 Normally Open, Medium Pushbutton, Low Force
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B7132 Normally Closed, Medium Pushbutton, Low Force
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B7133 SPDT, Medium Pushbutton, Low Force
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B7134 Normally Open, Medium Pushbutton, Low Force
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B7135 Normally Closed, Medium Pushbutton, Low Force
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B7136 SPDT, Medium Pushbutton, Low Force
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B7151 Normally Open, High Pushbutton, Low Force
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B7152 Normally Closed, High Pushbutton, Low Force
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B7153 SPDT, High Pushbutton, Low Force
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B7154 Normally Open, High Pushbutton, Low Force
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B7155 Normally Closed, High Pushbutton, Low Force
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B7156 SPDT, High Pushbutton, Low Force
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B9111 Normally Open, Low Pushbutton, Low Temp
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B9112 Normally Closed, Low Pushbutton, Low Temp
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B9113 SPDT, Low Pushbutton, Low Temp
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B9114 Normally Open, Low Pushbutton, Low Temp
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B9115 Normally Closed, Low Pushbutton, Low Temp
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B9116 SPDT, Low Pushbutton, Low Temp
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B2002 Normally Open, Low Pushbutton Switch, MIL grade
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B2003 Normally Closed, Low Pushbutton Switch, MIL grade
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B2004 SPDT, Low Pushbutton Switch, MIL grade
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B2005 Normally Open, Low Pushbutton Switch, MIL grade
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B2006 Normally Closed, Low Pushbutton Switch, MIL grade
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B2007 SPDT, Low Pushbutton Switch, MIL grade
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B2030 Normally Open, High Pushbutton Switch, MIL grade
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B2031 Normally Closed, High Pushbutton Switch, MIL grade
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K1006 Normally Open Internal Lever Switch
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K1009 Normally Closed Internal Lever Switch
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K1008 Normally Open Internal Lever Switch
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K1032 Normally Closed Internal Lever Switch
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HS002 Pipe Mount Bracket for Momentary Switches
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E1008 Surface Bracket for Momentary Switches
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E1005 Surface Bracket for Momentary Switches
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E1128 Pendant With Hook Handle
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E1057 Mounting Bracket Maintained Contact Rocker Waterproof Switches
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Make The “Switch” to CPI
If your momentary switch application demands high performance, we think you should demand CPI. Please call us today to speak with our engineering team about your needs.