SB20

SB20 Level controller or power interface module with alarm sounder Primary output can directly control motors up to 2HP cosF 0.4-0.5 single phase 2 SPCO relay outputs Alarm indicator LED and Beeper 1, 2 or 3 sensor inputs 240 or 415Vac supply DIN rail mounting Technical Specification Supply Voltage Sensor Voltage Sensor Inputs The SB20 is a versatile level control or interface module that can also be used in many other process control applications. One level switch can be connected for an alarm or two level switches to start and stop a submersible pump or a solenoid valve for emptying/filling function It works with all kind of level switches, including conductive probes, as well as pressure switches or other limit switches. The module can be used as a dry-running protection, with a pressure switch or filling level control switch, to start and stop a pump. V 240 or 415ac V 12Vac switch contacts or conductive probes Output ratings Contact Form Switching Power Max ac Switching Power Max dc Switching Voltage AC Max Switching Voltage DC Max Switching Current Max Resistive (n/o contact) (n/c contact) Switching Current Max Inductive Standard Parts SB20 VA W V V Output 1 SPCO 1500 560 250 28 Output 2 SPCO 750 not approved 250 not approved A A A 20 10 8 10 10 4 Inputs 1, 2 or 3 Outputs 2 Other versions can be made for particular applications. Please contact Cynergy3 with your requirements. Terminal Assignment Mechanical Diagram 24 23 22 21 20 19 18 17 16 15 14 13 Power supply 240/415 Vac. Two outputs: Main output SPCO 20(8) Amps 250V Secondary output SPCO 10(4) Amps 250V SB20 LED indicator and beeper for low level alarm CE ON - OFF 1 Cynergy3 Components Ltd. 7 Cobham Road Ferndown Industrial Estate Wimborne, Dorset BH21 7PE Telephone +44 (0) 1202 897969 2 3 4 5 6 7 53 mm 8 9 10 11 12 90 mm 1 3 4 9 10 11 13 14 15 19-20 21-22 23 24 Supply Neutral Supply Live 240Vac Supply Live 415Vac Output 1 nc contact Output 1 no contact Output 1 common Output 2 no contact Output 2 common Output 2 nc contact Low voltage input sensor Sensor common input Sensor minimum level Sensor maximum level Low voltage input 19-20 for pressure/float switch with contacts closed at minimum pressure or level switch with contacts closed when level low. NB These terminals must be bridged if no sensor is connected. Email:sales@cynergy3.com ISO9001 C E R T I F I E D www.cynergy3.com © 2012 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited. Level controller or power interface module with alarm sounder The SB20 can be used for many process control functions, including: Dry running control with 2 level switches Dry running control with 1 level switch Dry running control with conductive probes Pump control by pressure switch Pump control by level switch “No water” alarm and secondary control output Top tank switch (NC when level low) Example: Rainwater supply Filling a vented roof tank from a rainwater tank. The pump will operate when the roof tank level is not at max level and the water in the rainwater tank is above the low level. The red alarm LED will illuminate and the Beeper will sound (with switch in ON position), if the level in the rainwater tank drops to the low level, and the secondary relay opens a solenoid valve to supply water from the mains water supply, which will remain operated until the rainwater tank fills to the high level. The Beeper alarm will, if switch is ON, sound until the tank is full. High level switch (NC The illustration is for 240Vac supply, which is connected to terminals 0 (neutral) and 3 (live). when level high) Low level switch (NC when level high) Example: Process supply Maintaining a pressurised supply to a process. The pump will operate when the pressure switch is below the set level and the water in the supply tank is above the low level. The red alarm LED will illuminate and the Beeper will sound (with switch in ON position), if the level in the supply tank drops to the low level, and the secondary relay will operate. The alarm will remain operated until the tank fills to the high level. The Beeper alarm will, if switch is ON, sound until the tank is full. The illustration is for 240Vac supply, which is connected to terminals 0 (neutral) and 3 (live). Secondary or Alarm circuit NC 24 23 22 21 20 19 18 17 16 15 14 13 SB20 CE ON - OFF 1 2 3 4 5 6 7 8 9 10 11 12 Solenoid valve nc Common no Supply pipe X Mains water Pump Rainwater tank To process 24 23 22 21 20 19 18 17 16 15 14 13 SB20 CE ON - OFF 1 2 3 4 5 6 7 8 9 10 11 12 nc Common no High level switch (NC when level high) Low level switch (NC when level high) Pressure switch Expansion vessel Centrifugal pump Supply tank NB The diagrams shown above are simplified illustrations of how the module may be used and do not include any necessary safety devices, such as fuses or thermal cutouts, or statutory requirements for installation of such electrical equipment. ISO9001 C E R T I F I E D www.cynergy3.com © 2012 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited.