A3SA-90B1-24SO

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Pushbutton switches are simple control devices to automate various functions in modern day machines. A3SA-90B1-24SO miniature pushbutton switches are manufactured by a leading Japanese industrial automation parts manufacturer, Omron.

The A3SA-90B1-24SO is a single-pole single-throw contact pushbutton switch rated for 20A at 250V AC. It is a momentary contact type, SPDT non-illuminated pushbutton switch. The switch is encapsulated in a small 4 pole package of dimensions 15.6 (L) x 22.5 (W) x 11.2(H) mm, with a 9.5mm rough and bright surface actuator.

The A3SA-90B1-24SO can be used in wide range of applications in mechanical and electrical systems. Most typical applications include:

• Electrical systems in domestic and commercial machines, such as emergency stop buttons in lifts, alarm systems, kitchen equipment, freezers, ovens, air-conditioners, water pumps, and compressors
• Instrumentation control systems such as automatically switching between different measuring instruments for testing, and controlling switching between different control channels in a multi-channel control system
• Measuring systems in medical instruments like X-Ray machines, MRI systems, Ultrasound systems and infusion pumps
• Industrial production and safety systems such as controlling run/stop signals for assembly lines, operating manual operating switches for product function testing, and operating interlock switches for safety doors and gates
• Automatic mechanisms such as pushing buttons for changing modes in CD players, interacting with interactive displays, and pressing buttons for security access control systems

The A3SA-90B1-24SO has also been designed to survive accidental pressures which might be encountered in factory environments while delivering precise long-term performance. The button components are made from a mixture of resins to not just make the device more durable but also to meets high demands for quality and reliability.

The pushbutton switch utilizes a dual action mechanism which creates an ON/OFF connection when pressed. Where high current/voltage is required in applications such as motor management, air conditioning, and production line control, the use of A3SA-90B1-24SO can help to provide extra safety to operators.

The A3SA-90B1-24SO features a life expectancy of up to 500,000 cycles and a maximum contact resistance of 100mΩ. Its contact rating provides a surge capability of up to 2kV. The contact bounce is minimized with a suitable vibration and shock resistance as per standard specifications.

It also features N.O and N.C contacts for SPDT configuration. The operating temperature range is from -20 to + 55 degrees Celsius. With an IP67 protection degree, the A3SA-90B1-24SO is endures harsh environments and an ideal choice for heated and dusty areas. The A3SA-90B1-24SO is available in various colors for easy identification and compatibility with other equipment.

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