Ex heating controller type FRB-1 series 1087

short description

the comprehensive solution for controlling and limiting the temperature incl. power function


    The heating control system consists of                 1 Ex- Temperature-Limiter                                    1 Ex- Temperature - Controller                             1 Ex- power unit (with a main relay 25A)


The Ex heating controll type FRBL-1, series 1087 in conjunction with a PTC resistance thermometer is used for the control , limitation and electric contact of the temperature of equipment in hazardous explosive ereas which require apparatus of category 2G/2D  Zone 1 / 21

FRBL-1 series 1087 are main part of an electrical heating control in the flame proof areas are installed and intrinsically safe electric circuit for the sensors has. Measured value processing via micro controller.


    Marking :   II 2 G Ex e ib [ib] mb IIC T4                                      II 2 Ex tb IIIC IP 6x T90°C Db

                                                                                                                   EC-Type Examination Certificate :                        TÜV 03 ATEX 2078

    Flame proof according to                                   ATEX Directive 94/9/EC, intrinsic safety             EN 60079-0, EN 60079-7, EN 60079-11,                EN 60079-18, EN60079-31 

Technical Data

 Supply voltage :  230V AC  +10%; -15%: 50/60 Hz    ( optional )              (254V AC )

 Power consumption             ca. 11VA (without load)

 Nominal current                     25A

 Degree of protection            IP 64

 Relais out controller             1n.c. 5 A, 250 V

 Ambient temperature           - 20...+ 40°C                         

 Indicate range                        actual value -99...460°C                                                       set point       - 4 ...460°C


  • The FRBL-1 contains the controller, limiter and a main relay 25A
  • Attitude of the temperature levels in the category 2 permits
  • connectiont to resistance temperature sensor   Pt100 DIN in 3- or 2-wire configuration
  • Signalling of sensor break and sensor    short-circuit signal
  • Greener-LEED-indication of the main contactor´s switching position
  • adjustment of switchpoint with tool only (screwdriver)
  • temperature sensor shortage or breakage shown by 7-segment LED display for controller and limiter
  • unlock at device or remote
  • no unlock necessary after breakdown of power supply

     complete Wiring and Operating Instructions                     PDF file uctions