Controllers in this category govern the operation of chain hoists and motors used for rigging trusses, lighting, video and scenic elements above stage and studio spaces. Units range from 4-channel to 8-channel configurations, with models covering Chainmaster and NextHoist protocols alongside general-purpose LLT control. Power input is typically 32A 3-phase, with output distributed via Harting, Soca or CEE4 connectors to 16A 4-pin loads, allowing multiple hoists to be run and monitored from a single control point.
These units are used wherever motorised lifting needs coordinated, safe operation rather than isolated on/off switching, such as multi-point flying of trusses or scenery. Channel count and connector type determine how many motors can be addressed and which hoist brands are compatible, making selection dependent on the rigging plan and the motors already specified for a given production.