A microwave door switch changes electrical contact states as the door latch moves. For reliable door detection, the switches must change state in the correct order, with enough actuator travel to operate and release consistently. This guide focuses on common mechanical microwave interlocks. It explains how contact timing and assembly variation affect door signals and […]
A mechanical interlock uses physical parts to block conflicting actions. An electrical interlock uses contacts or control logic to prevent conflicting commands. Both prevent incompatible functions from operating together, but they act on different parts of the system. Motor starters, transfer switches, and foot controls show how these methods work and where their limits lie. […]
For industrial switches and relays, RoHS directive compliant means that the materials meet the applicable EU limits for ten restricted substances or qualify for valid exemptions. Each material is assessed separately. A low average concentration across the device cannot compensate for a material that exceeds its limit. For original equipment manufacturers (OEMs), this means confirming […]
A heavy duty toggle switch’s current rating applies only under specified voltage and load conditions. A 20A marking alone cannot confirm whether it can start a motor or interrupt a DC load. Its ratings must cover both normal operation and the stresses of switching. Similar-looking switches can have different electrical limits. Comparing those limits with […]
A tilt switch changes its electrical state when it reaches a specified orientation. In mechanical designs, gravity moves a ball or conductive liquid to make or break contact. Electronic designs sense inclination and change their output when the angle reaches a set threshold. Tilt switches can detect tipping, trigger alarms, or provide simple control inputs. […]
An electromechanical switch opens, closes, or redirects an electrical circuit through physical contact movement. A person, machine part, or magnetic field can trigger that movement, giving equipment a control command or position signal. This guide compares common switch forms and explains how their contact action supports industrial tasks. It also outlines the electrical and mechanical […]
A TRIAC (“triode for alternating current”) is a three-terminal semiconductor switch that conducts current in either direction when triggered. Inside a TRIAC-output solid state relay (SSR), it switches AC load current without moving contacts. Although SSRs are built with several different output technologies, a standard optically isolated TRIAC-output AC relay illustrates the core switching mechanics: […]
The MTS-102 toggle switch commonly has three terminals and two positions. Its single-pole, double-throw (SPDT) contacts connect one common terminal to either of two paths. It can select between circuits or control a single load using two terminals. The dimensions below apply to the illustrated solder-terminal MTS-102. Several manufacturers use the same base model name, […]
A safety limit switch detects a machine part or guard position and signals the safety control system. Before ordering, confirm that its safety features, electrical ratings, and operating travel match the machine’s requirements. Mechanically actuated industrial limit switches can look alike while requiring different wiring or movement. Use the exact model’s datasheet and drawings to […]
CNC limit switches detect axis positions for homing and travel limits. Choose a mechanical switch when a cam can press it reliably, or an inductive sensor for non-contact metal detection. Reliable performance depends on matching your enclosure rating, controller interface, and mounting layout. This guide covers how to select, wire, mount, and test your switches […]