Distribution by
Mouser
View component in product
Assembly settings
Front
Front form
Round

Round

choose ...
  • Rectangular
  • Round
  • Square
Front dimension
Ø 24,5 mm

Ø 24,5 mm

choose ...
  • 14 mm x 9 mm
  • 18 mm
  • 18 mm x 18 mm
  • 18,4 mm x 18,4 mm
  • 18,8 mm x 18,8 mm
  • 19 mm x 19 mm
  • 20 mm x 23,5 mm
  • 24 mm x 18 mm
  • 24 mm x 23,5 mm
  • 24 mm x 24 mm
  • 26 mm x 26 mm
  • 26,4 mm x 29 mm
  • 29,8 mm x 29,8 mm
  • 30 mm x 24 mm
  • 30 mm x 30 mm
  • 35 mm x 35 mm
  • 36 mm x 24 mm
  • 48 mm x 24 mm
  • 58 mm x 29 mm
  • 58 mm x 30 mm
  • 58 mm x 35 mm
  • 85 mm x 85 mm
  • 9 mm x 9 mm
  • Ø 16 mm
  • Ø 18 mm
  • Ø 18,3 mm
  • Ø 19 mm
  • Ø 22 mm
  • Ø 24 mm
  • Ø 24,5 mm
  • Ø 25 mm
  • Ø 27 mm
  • Ø 29 mm
  • Ø 29,5 mm
  • Ø 30 mm
  • Ø 32 mm
  • Ø 34 mm
  • Ø 34,75 mm
  • Ø 35 mm
  • Ø 37 mm
  • Ø 38 mm
  • Ø 39 mm
  • Ø 40 mm
  • Ø 42 mm
  • Ø 50 mm
  • Ø 60 mm
  • Ø 7 mm
  • Ø 9 mm
  • Ø 9,5 mm
  • Ø 90 mm
Mounting
Design
Raised

Raised

choose ...
  • Flush
  • PCB
  • Raised
Mounting type
Panel mounting

Panel mounting

choose ...
  • For sticking or snapping in place
  • Panel mounting
  • adhesive
  • for snapping in place
  • pole mounting Ø35mm
  • pole mounting Ø38mm
  • wall mounting
Operating-/Indication part
Lens shape
Mushroom-head

Mushroom-head

choose ...
  • Concave
  • Convex
  • Flush
  • Mushroom-head
  • Raised
Lens colour
Red

Red

choose ...
  • Amber
  • Black
  • Black-black
  • Black-red
  • Blue
  • Blue-blue
  • Blue-white
  • Colourless
  • Colourless-colourless
  • Gold
  • Green
  • Green-blue
  • Green-green
  • Green-red
  • Green-white
  • Grey
  • Light green
  • Nature
  • Olive green
  • Orange
  • Red
  • Red-blue
  • Red-green
  • Red-red
  • Red-white
  • Red-yellow
  • Silver
  • Smokey black
  • White
  • White-Black
  • White-white
  • Yellow
  • Yellow-green
  • Zinc yellow
Lens material
Plastic

Plastic

choose ...
  • Aluminium
  • Plastic
  • Plastic metalised
  • Plastic, according to UL 94 HB
  • Plastic, according to UL 94 V0
  • Stainless steel
  • Stainless steel 316L
Lens illumination
Non illuminated

Non illuminated

choose ...
  • Illuminated
  • Non illuminated
  • Optional illuminated
Electrical characteristics
Contacts
2 NC

2 NC

choose ...
  • 1 C
  • 1 NC
  • 1 NC / 1 FS
  • 1 NC / 1 MC
  • 1 NC / 1 NO
  • 1 NC / 2 NO
  • 1 NO
  • 2 C
  • 2 NC
  • 2 NC / 1 NO
  • 2 NC / 2 NO
  • 2 NO
  • 3 NC
  • 3 NC / 3 NO
  • 3 NO
  • 4 NC / 4 NO
Switching rating
42 V AC @ 0,1 A

42 V AC @ 0,1 A

choose ...
  • 150 V AC/DC @ 3 A
  • 150 V AC/DC @ 5 A
  • 24 V DC @ 0,2 A
  • 240 V
  • 240 V @ 3 A
  • 240 V AC @ 3 A
  • 250 V
  • 250 V @ 3 A
  • 250 V @ 5 A
  • 250 V AC @ 1,5 A
  • 250 V AC @ 3 A
  • 250 V AC @ 6 A
  • 250 V AC/DC
  • 250 V AC/DC @ 5 A
  • 30 V DC @ 0,1 A
  • 35 V @ 3 A
  • 35 V AC/DC @ 0,6 A
  • 36 V AC/DC @ 0,6 A
  • 400 V @ 10 A
  • 42 V
  • 42 V @ 0,1 A
  • 42 V AC @ 0,1 A
  • 42 V AC/DC @ 0,1 A
  • 42 V DC @ 0,1 A
  • 48 V DC @ 0,5 A
  • 5 A
  • 50 V @ 0,1 A
  • 50 V @ 0,8 A
  • 50 V AC/DC @ 0,2 A
  • 50 V AC/DC @ 0,3 A
  • 500 V @ 10 A
  • 500 V AC @ 10 A
  • 500 V AC @ 6 A
  • 600 V AC @ 1,2 A
Mechanical Characteristics
Release type
Twist to unlock

Twist to unlock

choose ...
  • Key release to unlock
  • Pull unlock
  • Twist / Pull to unlock
  • Twist to unlock
Terminal
Universal terminal, 2 x 0.5 mm

Universal terminal, 2 x 0.5 mm

choose ...
  • 1.5 Series AMP Superseal 3 Pin Connector
  • Cable 200 mm, 180°
  • Cable 200 mm, 180°, Conntector M12
  • Cable 200 mm, 90°
  • Cable 200 mm, 90°, Connector M12
  • Connector M12
  • Connector M12 (5 pins)
  • Double plug-in terminal, 6.3 x 0.8 mm
  • Flat ribbon cable
  • Flat ribbon cable 300 mm
  • PCB terminal
  • Plug-in terminal
  • Plug-in terminal, 2 x 0.5 mm
  • Plug-in terminal, 2.8 x 0.5 mm
  • Plug-in terminal, 2.8 x 0.8 mm
  • Plug-in terminal, 6.3 x 0.8 mm
  • Push-in terminal
  • Ring cable lug screw terminal
  • Screw terminal
  • Soldering terminal
  • Soldering terminal, 2.8 x 0.5 mm
  • Spring-type terminal
  • USB 3.0 socket type A-A
  • USB 3.0 socket type C-A
  • Universal soldering terminal
  • Universal terminal, 2 x 0.5 mm
Switching system
Low-level element

Low-level element

choose ...
  • Capacitive
  • Low-level element
  • Short-travel element
  • Slow-make switching element
  • Snap-action switching element
Contact material
Gold

Gold

choose ...
  • Gold
  • Gold-plated silver
  • Palladium
  • Rhodium/Silver
  • Silver
Switching action
Maintained

Maintained

choose ...
  • Maintained
  • Maintained (a) - Maintained
  • Maintained (a) - Rest (a) - Maintained
  • Maintained (a) - Rest (a) - Maintained (a)
  • Maintained (a) - Rest (a) - Momentary
  • Maintained (a) - Rest - Maintained
  • Maintained (a) - Rest - Maintained (a)
  • Maintained (a) - Rest - Momentary
  • Maintained - Maintained
  • Maintained - Maintained - Maintained - Maintained
  • Maintained - Maintained - Maintained - Momentary
  • Maintained - Maintained - Momentary - Momentary
  • Maintained - Momentary
  • Maintained - Momentary - Momentary - Momentary
  • Maintained - Rest
  • Maintained - Rest (a)
  • Maintained - Rest (a) - Maintained
  • Maintained - Rest (a) - Maintained (a)
  • Maintained - Rest (a) - Momentary
  • Maintained - Rest - Maintained
  • Maintained - Rest - Maintained (a)
  • Maintained - Rest - Momentary
  • Maintained or momentary
  • Momentary
  • Momentary - Rest
  • Momentary - Rest (a) - Maintained
  • Momentary - Rest (a) - Maintained (a)
  • Momentary - Rest (a) - Momentary
  • Momentary - Rest - Maintained
  • Momentary - Rest - Momentary
  • Momentary / maintained
  • Rest (a) - Maintained
  • Rest (a) - Maintained (a)
  • Rest (a) - Momentary
  • Rest - Maintained
  • Rest - Maintained (a)
  • Rest - Maintained - Maintained - Maintained - Maintained
  • Rest - Momentary
Ambient Condition
IP front protection
IP65, according to DIN EN 60529

IP65, according to DIN EN 60529

choose ...
  • IP20
  • IP20 / IP66 with cap closed (IEC-EN60529)
  • IP40
  • IP40, according to IEC 60529
  • IP44
  • IP65
  • IP65, IP66
  • IP65, IP66, IP67, according to DIN EN 60529
  • IP65, IP67
  • IP65, according to DIN EN 60529
  • IP66
  • IP66, IP67, IP69K
  • IP67
  • IP67 (ISO 20653)
  • IP67, according to DIN EN 60529
  • IP69K
Back
View detailed product overview
Distribution by
Mouser
https://mouser.eao.com/component/51-252.026/e...

Actuator

  • 51-252.026

51-252.026 Actuator, Ø 24,5 mm, Mushroom-head, Non illuminated, Red, Plastic, opaque, Round, 2 NC, Maintained, Universal terminal, 2 x 0.5 mm, IP65, according to DIN EN 60529, Twist to unlock
51-252.026
Component for 37.61 USD
Add to Cart
Your product:
51-252.026

51-252.026

Actuator

37.61 USD19 in stock
Front
Front dimension:
Ø 24,5 mm
Front form:
Round
Mounting
Design:
Raised
Mounting type:
Panel mounting
Operating-/Indication part
Lens colour:
Red
Lens material:
Plastic
Lens illumination:
Non illuminated
Lens shape:
Mushroom-head
Lens optics:
opaque
Electrical characteristics
Switching voltage and switching current:
100 mA at 42 VAC/VDC
Contacts:
2 NC
Switching rating:
42 V AC @ 0,1 A
Mechanical Characteristics
Terminal:
Universal terminal, 2 x 0.5 mm
Contact material:
Gold
Switching action:
Maintained
Switching system:
Low-level element
Switching system:
This low-level switching element was designed for switching low powers in electronic circuits. The mechanism assures reliable switching of loads ranging from a few μA/μV up to 100 mA/ 42 VAC/DC.
Single-break momentary contact, as normally open or normally closed with 4 independent points of contact. 2 momentary contactsper switching element; combination of normally open and normally closed is possible.
Special features are the long life, extremely short rebound time and stable contact resistance.
Release type:
Twist to unlock
Mechanical lifetime:
1 Mil. cycles of operation (RCC/RPB)
Operating force:
18 … 21 N (depending on the switching element)
Operating Travel:
3 mm
Tightening torque:
Fixing nut max. 0.5 Nm
Terminal details 1:
The universal terminals permit these units to be mounted on printed circuit boards (PCB). These terminals can also be used as soldering or plug-in terminals.
For these terminals we can also supply a plug-in base which, when soldered on to the board, enables the switch to be plugged in.
Weight:
0.015 kg
Ambient Condition
IP front protection:
IP65, according to DIN EN 60529
Operating temperature:
– 25 °C … + 55 °C
Storage temperature:
– 40 °C … + 85 °C
Certificate
REACH:
REACH compliant
RoHS:
RoHS compliant
Other
Short Description:
Actuator, Ø 24,5 mm, Mushroom-head, Non illuminated, Red, Plastic, opaque, Round, 2 NC, Maintained, Universal terminal, 2 x 0.5 mm, IP65, according to DIN EN 60529, Twist to unlock
Housing colour:
Black
Hints:
Marking arrows
Wiring diagrams:
Wiring diagrams
Mounting cut-outs:
Mounting cut-outs
Dimension drawings:
Dimension drawings
A = Solder terminal
B = Plug-in terminal 2.8 mm x 0.5 mm
C = Universal terminal 2.0 mm x 0.5 mm
Download files
Component for 37.61 USD
Add to Cart
Cookie consent
Our website uses cookies. For more information about cookies on this website, please see our Privacy Policy and learn more about us in the Legal Notice. You may change the setting in the Privacy Policy.
Accept all
Reject non-required
Manage Settings