Momentary ON (Normally Open) Toggle Switches
Description
Momentary ON (Normally Open) Toggle Switches are devices that control the flow of electrical current in a circuit. In their normal state, these switches have contacts that are open, meaning the circuit is interrupted and no current flows through. When actuated, the contacts close, allowing current to pass through the circuit temporarily.
Working Principle
Momentary ON toggle switches operate by closing the circuit only when the switch is actively pressed or toggled. This means that the switch remains in the open position until an external force is applied to the actuator, which closes the contacts and allows current to flow. Once the force is removed, the switch returns to its open state, interrupting the current flow again. This functionality is particularly useful for applications requiring temporary activation, such as signaling or controlling devices that should not remain continuously powered.
Applications
Momentary ON toggle switches are commonly used in applications where temporary activation is needed. For example, they are used in automotive applications for horn buttons, where the horn sounds only while the button is pressed. They are also used in industrial machinery for jog controls, allowing operators to manually control the movement of machine parts for short durations.
Advantages over other Toggle Switches
One of the primary advantages of Momentary ON toggle switches is their ability to provide temporary control, which is ideal for applications that require intermittent operation. Unlike maintained-contact switches, which remain in their last position until manually changed, momentary switches automatically return to their default state, reducing the risk of leaving a device unintentionally powered.
Limitations
A limitation of Momentary ON toggle switches is that they require continuous manual actuation to maintain the closed circuit. This can be a disadvantage in applications where sustained operation is needed, as it requires constant user interaction. Additionally, the mechanical nature of these switches may lead to wear and tear over time, potentially affecting their reliability and lifespan.
Considerations
When selecting Momentary ON toggle switches, several factors should be considered. Initial costs can vary based on the switch's design and materials, while operating expenses may include maintenance and potential replacement costs due to mechanical wear. Durability is an important consideration, as frequent use can lead to mechanical failure. Accuracy in terms of actuation force and response time should also be evaluated to ensure the switch meets the application's requirements. Replacement and maintenance costs should be factored into the overall cost of ownership, especially in high-use environments.
from Waytek, Inc.
Carling Technologies 6GA5B-D-2B-B/HDW ASSM Toggle Switches. Category: Toggle Switches. Manufacturer: Carling Technologies. Amp Rating: 10A @ 250VDC, 15A @ 125VDC. Sealed and unsealed actuators available. Includes face nut. Red = On, Clear = Off. #6 screws contacts. Mounting stem is 15/32" dia. Fits... [See More]
- Momentary Contact Switch Function: Momentary ON
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Single Throw
from DigiKey
Toggle Switch DPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from Waytek, Inc.
Carling Technolgoies 6FA53-78/TABS Toggle Switch. Category: Toggle Switches. Manufacturer: Carling Technologies. Contact Action: (On)-Off. Circuitry: SPST. 15A. 250VDC. Sealed [See More]
- Momentary Contact Switch Function: Momentary ON
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Single Throw
from DigiKey
Toggle Switch DPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from Waytek, Inc.
Carling Technologies 6FA54-78 Toggle Switches. Category: Toggle Switches. Manufacturer: Carling Technologies. Sealed and unsealed actuators available. Includes face nut [See More]
- Momentary Contact Switch Function: Momentary ON
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Single Throw
from DigiKey
Toggle Switch DPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch DPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Through Hole [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Through Hole [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Flat Anti-Rotation
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Through Hole [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch 4PDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Locking Lever
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Locking Lever
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch SPDT Through Hole, Right Angle [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Flat Anti-Rotation
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch DPDT Through Hole, Right Angle [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch DPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE SPDT 5A 28V [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE SPDT 0.4VA 20V [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
Toggle Switch DPDT Panel Mount [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Locking Lever
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE SP 120VAC 3A [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE 4PDT 5A 120V [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Flat Anti-Rotation
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE DPDT 5A 120V [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE SPDT 5A 120V [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from DigiKey
SWITCH TOGGLE SPDT 0.4VA 20V [See More]
- Momentary Contact Switch Function: Momentary ON
- Toggle Actuator: Standard Toggle Handle
- Switch Type: Toggle
- Switch Function: Momentary
from Selecta Products
". HEAVY DUTY TYPE. 1.312 INCH W X 1.062 INCH D X 4.093 INCH H SIZE. SPDT CONTACT CONFIGURATION. MOMENTARY ON/MOMENTARY OFF OPERATION TYPE. COMMERCIAL BUILDING, INSTITUTE, SCHOOL, WAREHOUSE APPLICATION. 24 VAC/VDC VOLTAGE RATING. 3 AMPERE CURRENT RATING. SCREW TERMINAL TYPE. COLOR BROWN. " [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Double Throw
from WorldWide Electric Corporation
Heavy duty rated NEMA A600 contacts. Bifurcate movable contacts. Octagonal mounting nuts. Boots not required for NEMA 4. Heavy duty plastic buttons resist oils and corrosion. Meets type 1, 3, 4, 12, 13 and automotive standards (oil and dust tight). Building block construction of contact blocks make... [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Toggle Actuator: Short Toggle Handle
- Switch Type: Toggle
- Switch Function: Maintained
from NSI Industries LLC
BAT HANDLE TYPE. 0.67 INCH D SIZE. 0.687 INCH TOGGLE LENGTH. SPST CONTACT CONFIGURATION. MAINTAINED OFF/MOMENTARY ON OPERATION TYPE. UL, CSA APPROVAL. MOTOR EQUIPMENT CONTROL APPLICATION. 125 TO 250 VAC VOLTAGE RATING. 0.465 INCH L BUSHING MOUNTING. 15 AMPERE AT 125 VAC, 10 AMPERE AT 250 VAC CURRENT... [See More]
- Momentary Contact Switch Function: Momentary ON
- Switch Function: Maintained; Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Single Throw
from Selecta Products
". HEAVY DUTY TYPE. 1.312 INCH W X 1.062 INCH D X 4.093 INCH H SIZE. SPDT CONTACT CONFIGURATION. MOMENTARY ON/MOMENTARY OFF OPERATION TYPE. COMMERCIAL BUILDING, INSTITUTE, SCHOOL, WAREHOUSE APPLICATION. 24 VAC/VDC VOLTAGE RATING. 3 AMPERE CURRENT RATING. SCREW TERMINAL TYPE. COLOR IVORY. " [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Double Throw
from NSI Industries LLC
BAT HANDLE TYPE. 0.75 INCH W X 0.778 INCH D X 1.308 INCH H SIZE. 0.687 INCH TOGGLE LENGTH. DPST CONTACT CONFIGURATION. MAINTAINED OFF/MOMENTARY ON OPERATION TYPE. UL, CSA APPROVAL. MOTOR EQUIPMENT CONTROL APPLICATION. 125 TO 250 VAC VOLTAGE RATING. 15/32 INCH-32 TPI X 0.465 INCH L BUSHING MOUNTING. [See More]
- Momentary Contact Switch Function: Momentary ON
- Switch Function: Maintained; Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Double Pole, Single Throw
from Selecta Products
". HEAVY DUTY TYPE. 1.312 INCH W X 1.062 INCH D X 4.093 INCH H SIZE. SPDT CONTACT CONFIGURATION. MOMENTARY ON/MOMENTARY OFF OPERATION TYPE. COMMERCIAL BUILDING, INSTITUTE, SCHOOL, WAREHOUSE APPLICATION. 24 VAC/VDC VOLTAGE RATING. 3 AMPERE CURRENT RATING. SCREW TERMINAL TYPE. COLOR GRAY. " [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Double Throw
from NSI Industries LLC
BAT HANDLE TYPE. 0.75 INCH W X 0.778 INCH D X 1.308 INCH H SIZE. 0.687 INCH TOGGLE LENGTH. DPDT CONTACT CONFIGURATION. MAINTAINED ON/MAINTAINED OFF/MOMENTARY ON OPERATION TYPE. UL, CSA APPROVAL. MOTOR EQUIPMENT CONTROL APPLICATION. 125 TO 250 VAC VOLTAGE RATING. 15/32 INCH-32 TPI X 0.465 INCH L... [See More]
- Momentary Contact Switch Function: Momentary ON
- Switch Function: Maintained; Momentary
- Switch Type: Toggle
- Maintained Contact Switch Function: ON/OFF
from Selecta Products
". HEAVY DUTY TYPE. 1.312 INCH W X 1.062 INCH D X 4.093 INCH H SIZE. SPDT CONTACT CONFIGURATION. MOMENTARY ON/MOMENTARY OFF OPERATION TYPE. COMMERCIAL BUILDING, INSTITUTE, SCHOOL, WAREHOUSE APPLICATION. 24 VAC/VDC VOLTAGE RATING. 3 AMPERE CURRENT RATING. SCREW TERMINAL TYPE. COLOR LIGHT ALMOND. " [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Double Throw
from Selecta Products
". HEAVY DUTY TYPE. 1.312 INCH W X 1.062 INCH D X 4.093 INCH H SIZE. SPDT CONTACT CONFIGURATION. MOMENTARY ON/MOMENTARY OFF OPERATION TYPE. COMMERCIAL BUILDING, INSTITUTE, SCHOOL, WAREHOUSE APPLICATION. 24 VAC/VDC VOLTAGE RATING. 3 AMPERE CURRENT RATING. SCREW TERMINAL TYPE. COLOR RED. " [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Double Throw
from Selecta Products
". HEAVY DUTY TYPE. 1.312 INCH W X 1.062 INCH D X 4.093 INCH H SIZE. SPDT CONTACT CONFIGURATION. MOMENTARY ON/MOMENTARY OFF OPERATION TYPE. COMMERCIAL BUILDING, INSTITUTE, SCHOOL, WAREHOUSE APPLICATION. 24 VAC/VDC VOLTAGE RATING. 3 AMPERE CURRENT RATING. SCREW TERMINAL TYPE. COLOR WHITE. " [See More]
- Momentary Contact Switch Function: Momentary ON; Momentary OFF
- Switch Function: Momentary
- Switch Type: Toggle
- Pole & Throw Specifications: Single Pole, Double Throw