Thermal cut-out Thermostat 27 28 29 R Applications - Household appliances - Electronics - Machinery Benefits - Up to 100,000 cycles - Various terminals on-hand - Small tolerances and hysteresis available - Response temperatures from 0C up to 260CTechnical data control type 1) 11EN 03EN 52N 60EN 05EN 15N 23EN ratings function automatic manual version normally closed / normally open normally closed rated current at 250 Vac ( cos 0,95 ) 16 A 16 A 16 A 10 A 16 A 16 A 16 A VDE switching cycles 10,000 10,000 10,000 100,000 3,000 6,000 3,000 2) max. temperature T ( steps in 5 K ) 150 C 150 C 230 C 150 C 150 C 40 C ... 250 C 150 C a rated current at 240 Vac ( cos 1,0 ) 10 A 10 A 10 A 10 A 16 A 10 A UL switching cycles 100,000 100,000 100,000 6,000 6,000 6,000 max. temperature T ( steps in 5 K ) 150 C 150 C 230 C 150 C 250 C 150 C a tolerance T <100C: 3 K / T >100C: 4 K / T >140C: 5 K a a a contact resistance < 30 m hysteresis / reset temperature T <100C: 10 K 4 K / T >100C: 15 K 5 K / T >140C: 20 K 5 K customer-specific a a a degrees of protection provided by enclosures (EN 60529) IP00 ( 60EN IP54 ) suitable for use in protection class I, II VDE EN 60730-1 / -2-9 4) certifications UL (E43273 / E201152) UL873 / UL60730-1A / -2-9 3) CSA C22.2 No. 24 1) 2) 3) 4) no certification type 55H up to 260C different ratings type 15N Standard types drawing technical type nc no code illustration dimensions ( mm ) description terminals 6.3 x 0.8, standard housing thermosetting R28 11EN 1 3 plastic 9mm, dielectric strength moving bracket small, 2,000 Vac cap aluminium terminals 6.3 x 0.8, standard housing thermosetting R28 03EN 1 3 plastic 12mm, dielectric strength moving bracket small, 2,000 Vac cap aluminium terminals 6.3 x 0.8, standard housing ceramic 12mm, R28 52N 1 3 dielectric strength moving bracket small, 2,000 Vac cap aluminium terminals 6.3 x 0.8, manual housing thermosetting plastic, R27 05EN 1 moving bracket small, dielectric strength cap aluminium, 1,800 Vac reset pin terminals 6.3 x 0.8, manual housing ceramic, R27 15N 1 moving bracket small, dielectric strength cap aluminium, 1,800 Vac reset pin ceramic terminals 6.3 x 0.8, manual housing thermosetting plastic, R29 23EN 1 moving bracket small, dielectric strength cap aluminium, 2,000 Vac reset pin 2 , lead wire 1.25mm tight against humidity housing thermosetting plastic, R28 60EN 1 3 fix bracket, dielectric strength cap aluminium, 1,800 Vac degree of protection IP54