4 Minute, Double Pole Single Throw (DPST), Screwmount Applications: Battery chargers, ultrasonic cleaners, saunas, tanning beds, medical equipment, dryers, small appliances, and food service equipment. Standard Features 15 amps per pole rating 120/240V, 1/4 HP 1000W Tungsten Approvals UL, CSA, BSI, VDE, OVE, SEV, KEMA, SEMA, NEMKO, UTE This timer has 4 terminals. Poltik manufactured the series 600/601 for Diehl under the brand name of Diehl, Diehl got out of the spring wound business about 2012, so now Poltik is selling them under their own brand, nothing has changed with any of the units except the name. The timer you receive may say Diehl or Poltik, depending on our stock, the the specifications will be the same