U2 ROCKORSCYCLE SEALED ROCKER SWITCHES

Category: Electronics, OTTO Engineering Inc, Switches

Overview

The U2-277 and U2-278 models, part of the U2 ROCKORSCYCLE SEALED ROCKER SWITCHES series, are robust momentary action rocker switches. They are meticulously engineered to endure extreme environmental conditions and are suitable for demanding applications such as material handling, heavy equipment, off-road, and construction equipment. These switches are characterized by their extended mechanical lifecycle of at least one million cycles and their adaptability to harsh outdoor environments.

Key Features

High Durability: These ON-OFF-ON switches are rated for over one million mechanical cycles, demonstrating their long-term reliability.

Environmental Resistance: All switches in this series are moisture-proof and dust-tight, adhering to IP64 standards, ensuring their performance in various conditions. Upgrades to an IP68S watertight seal are available, providing additional protection from direct water spray.

Tactile Feedback: Users experience crisp tactile feedback, making operation clear and decisive.

Vibration and Shock Resistance: The switches are constructed to resist shocks and vibrations, attributes necessary for use in their targeted applications.

Logic Level Switching: With the ability to handle logic level switching up to 10 amps, these switches are versatile and conform to RoHS environmental standards.

Standard Characteristics and Ratings

The electrical rating is specified for loads at sea level, with voltage conditions of 28VDC or 115VAC. Under these conditions, the switches can handle resistive loads of 10A, inductive loads, and lamp loads of 10MA at 5VDC. The electrical life of the switches is assured to be 100,000 cycles, which is impressive compared to the promised 1,000,000 mechanical cycles. The sealing effectiveness is covered by the IP64 standard, with an option to upgrade to IP68S for improved water resistance.

Operational Specifications

The operating temperature range of the switches spans from -55°C to +85°C. The design stipulates an operating force of 2.5+0.5/-1.0 lb and a reset force of a minimum of 0.75 lb. Additionally, the travel is restricted to a maximum of 0.140 inches, with a mandatory overtravel of at least 0.012 inches.

Materials and Dimensions

Material specifications include a nylon black button, stainless steel bracket, and silver contacts which are standard, with gold contacts available for logic level variants. Terminal and mounting hardware specifications are not provided in the content.

The datasheet also contains a note that specifications are subject to change without notice, and it references the Otto full line catalog with a page number indicating where additional information can be found.