Accessories 149 Immersion wells ZT Immersion wells for thermostats and temperature transmitters Type Immersion Overall length Suitable for 2 depth L (mm) 1 L (mm) Nickel-plated brass, G 1/2 , permitted pressure 25 bar R1/Ms 135 151 TAM Immersion wells G 1/2 R2/Ms 220 236 R3/Ms 500 516 R10/Ms 135 151 TX/TP R20/Ms 220 236 Stainless steel (1.4571 + 1.4401) G 1/2 , permitted pressure 63 bar R1/Nst 135 151 TAM Immersion wells 1/2 NPT R2/Nst 220 236 R10/Nst 135 151 TX/TP R20/Nst 220 236 Nickel-plated brass, 1/2 NPT, permitted pressure 25 bar RN1/Ms 135 151 TAM RN2/Ms 220 236 RN10/Ms 135 151 TX/TP RN20/Ms 220 236 Stainless steel (1.4571 + 1.4401) 1/2 NPT, permitted pressure 63 bar RN1/Nst 135 151 TAM RN2/Nst 220 236 RN10/Nst 135 151 TX R6 R7 RN20/Nst 220 236 Immersion wells with fixing flange for air ducts Type Immersion depth of sensor Suitable for Material: chromated steel R6 135 mm TX R7 220 mm Immersion wells (screw-in thread G1/2 ) Type Immersion depth Connection Max. perm. press. (bar) (mm) G12-100 100 G1/2 100 G12-150 150 G1/2 100 G12-200 200 G1/2 100 G12-250 250 G1/2 100 R12-100 100 R1/2 100 R12-150 150 R1/2 100 R12-200 200 R1/2 100 R12-250 250 R1/2 100 1 N12-100 100 /2 NPT 100 1 N12-150 150 /2 NPT 100 1 N12-200 200 /2 NPT 100 1 N12-250 250 /2 NPT 100 Accessories Solenoid valves Flow monitors Temperature sensors Thermostats Pressure transmitters Pressure switchesAccessories 148 for thermostats and pressure monitors Type H1 H1 Wall bracket including fixing screws and plugs (6 mm ) included as standard with TRM type thermostats. Suitable for all switching devices of the 200 and 300 series. P2 Sealing device consisting of cover plate and capstan screw for covering and sealing the adjusting screws. Only suitable for switching P2 device 200 (plug connection) WLP1 Heat conducting compound WLP1 to improve the transfer of heat, e.g. for strap-on thermostats. 3 Approx. 1.5 cm in handy dispenser. R4 Capillary tube bushing for 3 mm capillary tube (not pressure-tight). Screw-in thread G 1/2 . Suitable for all TAM. R5 Capillary tube bushing Rubber plug for 3 mm capillary tube. Bore diameter 10 mm. R4 R5 Not pressure-tight (5 off packed in bag). Suitable for all TAM. ST5 Replacement plug to DIN ISO 4400 for 200 series switching devices, with seal and fastening screw, 3-pin + earth contact ST218 Plug connector with position indication via LEDs ST5 Operating voltage: 12240 V AC/DC Operating current: max. 2 A LED current consumption: max. 10 mA LED indication: green, if voltage present at contact pin 1 red, if voltage present at contact pin 3 Plug rotates through 270 , engaging at 45 intervals 2 Connection cables: 1.5 mm (finely stranded) Protection class: IP 65 Ambient temperature: 060 C Suitable for 200 series pressure and temperature switches ST218 (plug connection) which are equipped with a microswitch (standard version).