800E-3X10 | Allen-Bradley Ser. A Contact Block 690V, 10A

The 800E-3X10 is a single normally open (1 NO) contact block designed for use in control circuits of industrial machines and panels. It serves as an interface between operator devices—such as push buttons or pilot lights—and the control logic. This contact block ensures reliable electrical signaling when actuated. It is commonly used in start/stop stations, emergency stops, and control enclosures. Its robust electrical ratings make it suitable for demanding industrial environments. The design supports secure operation under vibration or mechanical stress.

The 800E-3X10 is built for 22.5 mm operator device assemblies, following the industry-standard panel-mounting size. It’s designed to latch onto the rear of compatible push buttons or selector switches. The compact dimensions allow easy stacking of multiple contact blocks in tight enclosures. The small form factor ensures optimal use of panel space. Its footprint aligns with global standards, enabling use across various machine types. Installation and layout planning are streamlined thanks to its standard sizing.

The Allen-Bradley 800E-3X10 has been discontinued, and customers are advised to use a functional replacement from the same 800E contact block series. In most cases, a direct substitute would be another 1 NO contact block with the same electrical ratings (690V, 10A) and latch-mount mechanism, such as 800E-1A or 800E-3X01, depending on the application and availability. It is important to verify that the replacement maintains identical performance and fits the same mounting footprint. For applications with special certifications or contact materials, consulting the Rockwell Product Compatibility and Download Center (PCDC) is recommended. The new contact blocks are fully compatible with 800E operator devices and preserve the modular stackable format.

The 800E-3X10 uses a latch mount system to attach securely to compatible operator devices. This ensures a strong mechanical connection without requiring tools for standard assembly. The latch mechanism allows quick attachment or replacement, reducing maintenance time. It also ensures correct alignment of contacts during installation. The mounting design supports multi-block configurations without interfering with adjacent modules. This helps when customizing control stations.

This unit features a 1 Normally Open (1 NO) contact configuration. It closes the electrical circuit only when actuated by the associated operator device. This makes it ideal for initiating commands like motor starts, relay triggers, or system enable signals. NO contacts are essential in safety and logic circuits that depend on positive user action. The contact surfaces are made for long-life operation under both AC and DC loads. The simplicity of the 1 NO design supports reliable system control.