RTNA4 - RTAA4 Industrial temperature switch with capillary Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm Capillary 1 to 20 meters Applications Power generation safety equipment Technical Data Temperature range -46 ... 0°C to 200 ... 270°C Case Black Zamak Temperature Process : Ambient : Storage : Mounting Wall mounting braket Ground connection Via internal terminal block Electrical connection Terminal block with plastic cable gland for Ø 7 to 10.5 mm Electrical function See ordering code details on page 5 Adjustment 2 external adjustment screws on top of the case for set point and dead band -46 ... +270°C -30 ... +55°C -40 ... +55°C Repeatability ± 1% F.S. @ constant temperature cycle CE conformity Low Voltage Directive LVD 2006/95/EC Protection rating IP 66 (EN 60529) Process connection RTA : Copper alloy RTN : Stainless steel 1.4404 (316L) RTA : Copper alloy RTN : Stainless steel 1.4404 (316L) RTA : Copper alloy RTN : Stainless steel 1.4404 (316L) For types of protection see ordering details on page 5 Bulb Capillary Scale Internal. Accuracy on reading ± 5% FS Cover Zamak blue painted Captive stainless steel screws Code SETP Mounting on 2" pipe Code 0407 Stainless steel tag plate and wire Code 9941 Lead seal of the adjustment screws Code 8990 Nuclear cleanliness (RTN only) Code 0838 Electrical connection : stainless steel connector (Souriau) Code 2298 Mobile plug for stainless steel connector (Souriau) Code 2249 2015-04-21 Customer specific set point adjustment Design and specifications subject to change without notice Options www.baumer.com Data sheet B31.13 Page 1 / 6 RTNA4 - RTAA4 Industrial temperature switch with capillary Principle A vapour filled flexible sensing element actuates a microswitch by means of a lever. The set point is adjusted by means of a compressible spring installed in opposition. NC NC NC C C C NO NO NO Set point and reset point must be between 10% and 90% of the selected scale. Standard factory adjustment Setpoint at 50% of the scale on falling temperature NC C NC NC C C NO Customer specific factory adjustment (option SETP) The following specifications have to be given with the order: • Setpoint value • Adjustment on falling or raising temperature • Dead band value when using an adjustable dead band switch NO NO Electrical connections 2 SPDT NC Blue COM Red NO White NC Blue COM Red NO Yellow / green NC COM NO White Blue Red White Design and specifications subject to change without notice 1 SPDT 2015-04-21 Yellow / green www.baumer.com Data sheet B31.13 Page 2 / 6 RTNA4 - RTAA4 Industrial temperature switch with capillary Micro switches characteristics Switch code N (T) A (B) M (K) C (W) E (F) H D (V) J Type Tropicalized Standard Gold contact Hermetic Ultra sensitive Manual reset Ultra sensitive Hermetic Manual reset 6 Vdc 0.1 ... 8 A 0.4 ... 10 A 10 ... 50 mA 5 mA ... 4 A 0.4 ... 1 A N/A 0.4 ... 4 A N/A 12 Vdc 0.1 ... 8 A 0.4 ... 10 A 10 ... 50 mA 5 mA ... 4 A 0.4 ... 1 A N/A 0.4 ... 4 A N/A 24 Vdc 0.1 ... 8 A 0.4 ... 6 A 10 ... 50 mA 5 mA ... 4 A 0.4 ... 1 A 0.1 ... 8 A 0.4 ... 4 A 0.1 ... 8 A 30 Vdc 0.1 ... 8 A 0.4 ... 6 A 10 ... 50 mA 5 mA ... 3 A 0.4 ... 1 A 0.1 ... 8 A 0.4 ... 2 A 0.1 ... 8 A 48 Vdc 0.1 ... 8 A 0.4 ... 6 A 10 ... 50 mA 5 mA ... 3 A N/A 0.1 ... 8 A N/A 0.1 ... 8 A 110 Vdc N/A 0.1 ... 0.5 A 10 ... 50 mA 5 mA ... 1 A N/A N/A N/A N/A 220 Vdc N/A 0.1 ... 0.25 A 10 ... 50 mA 5 mA ... 0.5 A N/A N/A N/A N/A 115 Vac 0.1 ... 10 A 0.4 ... 10 A 10 ... 50 mA 50 mA ... 3 A 0.4 ... 10 A 0.1 ... 10 A N/A 0.1 ... 10 A 250 Vac 0.1 ... 5 A 0.2 ... 10 A 10 ... 10 mA 50 mA ... 2.5 A 0.2 ... 10 A 0.1 ... 5 A N/A 0.1 ... 5 A 2000 V 2000 V 2000 V 1500 V 2000 V 2000 V 1000 V 2000 V Dielectric rigidity between contacts and ground Adjustable ranges Micro-switch dead band 1) TMax Scale accidential Adjustable dead band Code N (T*) 10% °C A (B*) M (K*) 90% Fixed dead band C (W*) 10% E (F*) 90% 10% H 90% D (V*) J 10% 90% 2.5 °C 0 40 400 4-9 2-9 8 - 12 4 - 12 1.5 0.8 5 -20 ... 20 60 401 3-8 1.5 - 6 6 - 10 4 - 10 1 0.5 4 2 0 60 402 4-9 2-9 7 - 12 4 - 12 1.5 0.7 5 2.5 -46 ... ... 45 40 ... 120 145 403 5 - 16 3 - 16 10 - 20 6 - 20 2 1.2 6 4 100 ... 160 180 414 5 - 12 3 - 12 9 - 15 5 - 15 2 1 6 3 20 ... 80 100 415 5 - 12 3 - 12 9 - 15 5 - 15 2 1 6 3 160 ... 250 290 406 6 - 18 4 - 18 11 - 22 7 - 22 2.5 1.2 8 4.5 70 ... 150 175 408 5 - 16 4 - 16 10 - 20 6 - 20 2 1 6 4 130 ... 190 210 412 5 - 12 3 - 12 9 - 15 5 - 15 2 1 6 3 200 ... 270 290 413 5 - 12 3 - 12 9 - 15 5 - 15 2 1 6 3 (*) For version with 2 microswitches lower values of the dead band must be multiplied x 1.5 The value of the dead band is depending on the value of the set point. This table contains the dead band values for set point adjustment at 10% and 90% of the selected scale. For adjustable dead band the lower value corresponds to the dead band spring totally released and the higher corresponds to the dead band spring fully tensed. For other set points the dead band value can be calculated by linear interpolation between the values at 10% and 90%. 2015-04-21 Design and specifications subject to change without notice 1) www.baumer.com Data sheet B31.13 Page 3 / 6 RTNA4 - RTAA4 Industrial temperature switch with capillary Dimensions (mm) 76.5 130 = 125 = Minimum additional stem length (Amin/mm) 58 Connection 144 139 5 TD2 TD3 Without 0 0 0 G1/2 0 18 18 1/2 NPT 0 21 21 64 100 28.5 TD1 45° K ±2% K ±2% S Ø8 Ø 2,6 Ø8 P±3 S S Ø 9,5 = Bulb length (temperature sensitive part, see tables below) A = A P Additional stem length Minimum additional length Amin depends on type of capillary and process connection (see table above) For version TD1 there is no additional stem length (A=0). The sliding connection is mounted on the capillary. = Immersion length (P = S + A) Pmin = Minimum immersion length (Pmin = S + Amin) TD1 TD2 TD3 K = Capillary length Bulb Ø 14 mm K = 0 ... 2 m Code 400 401 402 403 408 412 413 414 415 S / mm 80 80 80 80 80 80 80 80 80 K = 3 ... 7 m S / mm 100 100 100 100 100 100 100 100 100 K = 8 ... 16 m S / mm 150 150 150 150 150 150 150 150 K = 17 ... 20 m S / mm 180 180 180 180 180 180 150 _ 180 180 Code 400 401 402 403 408 412 413 414 415 K = 0 ... 2 m Bulb Ø 9.5 mm S / mm 155 155 155 155 155 155 155 155 155 K = 3 ... 7 m S / mm 200 200 200 200 200 200 200 200 200 300 _ 300 300 370 370 K = 8 ... 16 m S / mm 300 300 300 300 300 300 K = 17 ... 20 m S / mm 370 370 370 370 370 370 Stainless steel sliding male connection (TD1) Thread and sizes A Clamping nut B Tightness fittings L Process connection H Thread and sizes A F G 1/2 1/2 NPT H 18 21 L 43 46 A 27/flat 27/flat B 27/flat 27/flat Waterproof after tightening mounted on the capillary. Clamping nut Process connection Clamping ring F B L H F G 1/2 1/2 NPT H 18 21 L 36 40 A 17/flat 17/flat B 23/flat 23/flat After tightening of the clamping nut, the stem is fixed in the process connection. Tight up to 40 bar. 2015-04-21 F Stainless steel sliding male connection (TD2/3) Design and specifications subject to change without notice Bulb length (S) according to the capillary length (K) and the temperature range (code) www.baumer.com Data sheet B31.13 Page 4 / 6 RTNA4 - RTAA4 Industrial temperature switch with capillary Ordering details RTNA4 - RTAA4 Temperature range (°C) -46... 0 -20 ... 20 0 ... 45 40 ... 120 100 ... 160 20 ... 80 160 ... 250 70 ... 150 130 ... 190 200 ... 270 RT A – . 4xx . – A N Deadband Adjustable Adjustable Adjustable Adjustable Fix Fix Fix Fix Adjustable Adjustable Adjustable Adjustable Fix Fix A A B C W E F D V M K N T H J . 400 401 402 403 414 415 406 408 412 413 . Type of capillary TD1 Stainless steel capillary without protection 1 TD2 Stainless steel capillary with stainless steel protection 2 TD3 Stainless steel capillary with stainless steel protection and PVC coating 3 Capillary length (K) 1 meter 1 2 meters 2 3 meters 3 4 meters 4 5 meters 5 6 meters 6 7 meters 7 8 meters 8 9 meters 9 10 meters A 11 meters B 12 meters C 13 meters D 14 meters E 15 meters F 16 meters G 17 meters H 18 meters J 19 meters K 20 meters L Immersion length (P) = Bulb length (S) + additional stem length (A) Immersion length (P) (Amin depends on type of capillary and process connection, for S and Amin see tables on page 4) P = S + Amin P = 150 mm (not for TD1) P = 160 mm (not for TD1) P = 250 mm (not for TD1) P = 400 mm (not for TD1) P = 600 mm (not for TD1) P = 1000 mm (not for TD1) Bulb diameter Ø 14 mm (standard) Ø 9.5 mm Process connection Without G1/2 1/2 NPT Options to be added behind the / (see example below) www.baumer.com / Data sheet B31.13 Design and specifications subject to change without notice Type of the bulb Copper alloy bulb and capillary Stainless steel bulb and capillary Approval Standard version without ATEX approval Type of micro switches 1 SPDT standard changeover switch 2 SPDT standard changeover switch 1 SPDT hermetically changeover switch 2 SPDT hermetically changeover switch 1 SPDT ultra sensitive changeover switch 2 SPDT ultra sensitive changeover switch 1 SPDT hermetically, ultra sensitive changeover switch 2 SPDT hermetically, ultra sensitive changeover switch 1 SPDT gold contact changeover switch 2 SPDT gold contact changeover switch 1 SPDT tropicalized changeover switch 2 SPDT tropicalized changeover switch 1 SPDT changeover switch, manual reset, opening on raising pressure 1 SPDT changeover switch, manual reset, opening on falling pressure RT 0 3 2 4 5 6 D E C 0 3 6 / Page 5 / 6 2015-04-21 Model Industrial temperature switch RTNA4 - RTAA4 Industrial temperature switch with capillary Ordering example with options RT – A A A . 400 . 1 1 2 E 3 / 0407 _ 9941 Industrial temperature switch Copper alloy bulb and capillary Without ATEX approval 1 SPDT standard changeover switch Temperature range -46 ... 0 °C TD1 stainless steel capillary without protection 1 meter capillary Immersion length P = 160 mm Bulb diameter Ø 14mm Process connection G1/2 Option : Mounting on 2" pipe 2015-04-21 Design and specifications subject to change without notice Option : Stainless steel tag plate and wire www.baumer.com Data sheet B31.13 Page 6 / 6