Versitle, Rugged, Proven - Nuclear grade time delay versions of the popular 219 series. On-Delay and Off-Delay timing is available. Contacts can be configured up to 4PDT or 6PST. Blow out magnets can be added to increase DC switching capability. Time ranges are adjustable over a 1:100 range. Locking shaft potentiometer and integral hold down clip on plug is standard. A large option list makes this product easily customized for special applications.