Technical Data (R27 R28 R29)
| ratings \ control type | R28 | R27 | R29 | |||||
| 11EN | 03EN | 52N | 60EN1) | 05EN | 15N | 23EN | ||
| function | automoatic | manual | ||||||
| version | normally closed / normally open | normally closed | ||||||
| VDE | rated current at 250 Vac (cos 0,95) | 16 A | 10 A | 10 A | 10 A | 16 A | 16 A | 16 A |
| switching cycles | 10,000 | 100,000 | 100,000 | 100,000 | 6,000 | 6,000 | 3,000 | |
| temperature range Ta (steps in 5 K) | 0 °C … 150 °C | 0 °C … 150 °C | 0 °C … 230°C2) | 0 °C … 150 °C | 0 °C … 150 °C | 0 °C … 250°C | 0 °C … 150 °C | |
| UL | rated current at 250 Vac (cos 0,95) | 15A/10A | 15A/10A | 15A/10A | – | 15A/10A | 16A/16A | 15A/10A |
| switching cycles | 100,000 | 100,000 | 100,000 | – | 6,000 | 6,000 | 6,000 | |
| temperature range Ta ( steps in 5 K ) | 0 °C … 150 °C | 0 °C … 150 °C | 0 °C … 230 °C | – | 0 °C … 150 °C | 0 °C … 250 °C | 0 °C … 150 °C | |
| tolerances | TA <100°C: ± 3 K / TA >100°C: ± 4 K / TA >140°C: ± 5 K | |||||||
| contact resistance | < 30 mΩ | |||||||
| hysteresis / reset temperature | TA <100°C: 10 K ± 4 K / TA >100°C: 15 K ± 5 K / TA >140°C: 20 K ± 5 K | customer-specific | ||||||
| degrees of protection provided by enclosures ( EN 60529 ) | IPOO (R28 60EN IP54) | |||||||
| suitable for use in protection class | I, II | |||||||
| approval | VDE/ENEC | EN versions have VDE approvals: EN 60730-1 / -2-9 plus UL/CSA listings | ||||||
| UL | N versions have UL and CSA listing: UL 873 | |||||||
| CSA | N versions have UL and CSA listing: C22.2 No. 24 3) | |||||||
| 1) not approved 2) type R28 55H up to 260°C 3) different approved ratings |
||||||||
Standard Types
| type | nc | no | code | illustration | drawing dimensions (mm) |
tech description | approvals |
| R28 11EN | 1 | 3 | 11EN=Plastic 10EN=ceramicdielectric strength 2,000 Vac |
 |
 |
terminals 6.3 x 0.8 housing thermosetting plastic 9mm, moving bracket, small cap aluminum |
VDE, UL, CSA |
| R28 03EN | 1 | 3 | standard
dielectric strength |
 |
 |
terminals 6.3 x 0.8, housing thermosetting plastic 12mm, moving bracket small, cap aluminium |
VDE, UL, CSA |
| R28 52N | 1 | 3 | plastic<170†C or ceramic>170†Cdielectric strength 2,000 Vac |
 |
 |
terminals 6.3 x 0.8, housing ceramic 12mm, moving bracket small, cap aluminium |
VDE, UL, CSA |
| R27 05EN | 1 | manual
dielectric strength 1,800 Vac |
 |
 |
terminals 6.3 x 0.8, housing thermosetting plastic, moving bracket small, cap aluminium, reset pin |
VDE, UL, CSA | |
| R27 15N | 1 | manual
dielectric strength 1,800 Vac |
 |
 |
terminals 6.3 x 0.8, housing ceramic, moving bracket small, cap aluminium, reset pin ceramic |
VDE, UL, CSA | |
| R29 23EN | 1 | manual
dielectric strength 2,000 Vac |
 |
 |
terminals 6.3 x 0.8, housing thermosetting plastic, moving bracket small, cap aluminium, reset pin |
VDE, UL, cUL | |
| R28 60EN | 1 | 3 | tight against humidity dielectric strength 1,800 Vac |
 |
 |
lead wire 1.25mm2, housing thermosetting plastic, fix bracket, cap aluminium, degree of protection IP54 |
VDE |
Brackets
| code | used in type | illustration | drawing dimensions (mm) |
tech description | approvals |
| 4 | R27, R28, R29 |  |
 |
aluminum loose bracket,
small use with T cap |
VDE, UL, CSA |
| 3 | R27, R28, R29 |  |
 |
stainless steel loose
bracket use with V cap |
VDE, UL, CSA |
| S | R27, R28, R29 |  |
 |
stud of
M5 x 6 brass,SW17 (S5 shown, other variations available) |
VDE, UL, CSA |
| B (+ angle) | R27, R28, R29 |  |
 |
fix bracket
possible angles: 0 / 45 / 90 / 135 deg |
VDE, UL, CSA |
Terminals
| code | used in type | illustration | drawing dimensions (mm) |
tech description | approvals |
| brass: 03 (0°)
brass: 09 (45°) brass: 04 (90°) steel: 93 (0°) steel: 94 (90°) |
R27, R28, R29 |  |
 |
terminals 6.3 x 0.8
brass nickel plated up to TA max. 150°C >150°C steel nickel plated also available: angle 45 / 90 deg |
VDE, UL, CSA |
| brass: 05 (0°)
brass: 10 (45°) brass: 06 (90°) steel: 95 (0°) steel: 96 (90°) |
R27, R28, R29 |  |
 |
terminals 4.8 x 0.5
brass nickel plated up to TA max. 150°C >150°C steel nickel plated also available: angle 45 / 90 deg |
VDE, UL, CSA |
| 00 | R27, R28 |  |
 |
solder terminals | VDE, UL, CSA |
| SA | R27, R28 |  |
 |
PCB terminals
solder terminals |
VDE, UL, CSA |
| 41 (0°)
42 (90°) |
R27, R28, R29 |  |
 |
solder terminals,
nickel plated, also available: angle 90 deg |
VDE, UL, CSA |
| brass: 45 (0°) brass: 46 (90°) | R27, R28, R29 |  |
 |
terminals 4.8 x 0.8
brass nickel plated up to TA max. 150°C also available: angle 90 deg |
VDE, UL, CSA |
Caps
 |
Standard cap, material aluminium (code T) Use with bracket #4 Stainless steel cap (code V) for large loose bracket #3 or fixed bracket B +angle |
|
Deviations from standard controls (caps, terminals, fixings) on request. Especially for electronic applications with voltage 6…120 Vac / 6…30 Vdc and current 10…100 mA, there are switches with crossbar- contacts available. (code P) Controls as single operation device (SOD) up to 150°C and reset temperature -35°C are available (type 81ES). |
|
Ordering & Marking Example
| Cantherm Ordering Example [ R2803EN15T03450+/-340+/-4 ] | ||||||||||
| R28 | 03 | E | N | 1 | 5 | T | 03 | 4 | 50+/-3 | 40+/-4 |
| type | base type | European version | type of contact (N normal contact / P low current) | contact execution (1 normally closed / 3 normally open) | housing plastic 1=UL/CSA; 5=UL/CSA/VDE (Use w/ E) 2=ceramic | cap code | terminal code | fixing code | response temperature | reset temperature |
| Marking |
| A100 norm. closed (B norm. open) response temperature 03EN XXXX type manufacture code XXXX date of manufacture |