E000175 – HEATER JUNCTION BOX, ENCLOSURE, ELEC, FOR NC CHAMBERS

Description

E000175 – Heater junction box, ENCLOSURE, ELEC, FOR NC CHAMBERS – Works with all Harshaw, Engelhard, Atotech USA, Atlas and Auto Technology Company fog and cyclic corrosion test chambers.    PURPOSE:  The purpose of the Cabinet Heater Junction Box is to provide a termination for the ends of the rod heater  that exit the exposure chamber wall. There are 2 of these boxes on each cabinet. Inside these boxes, the  electrical leads on each end of the heater are connected to the lead wires. These junction boxes protect  the ends of the heaters, and keep personnel and other objects away from high voltage contact.    LOCATION:  These boxes are located along the front bottom section of the chamber, behind the gray access panels.  The boxes are found by  removing the gray  access panels, and  looking at the outside  base of the exposure  chamber.  NOTE!  These boxes are made of plastic – care should be taken when removing and installing these  screws to prevent cracking or breaking.  One of these boxes has only one wire to connect to a heater end. The  other box has a pass-through wire (as shown to the left) to the second  box, as well as a primary wire and a green ground wire.  Additionally, there is a “strain relief” in the chamber wall that the rod  heater passes through. This strain relief seals around the heater to  keep the exposure zone conditions inside the chamber.  FUNCTION:  Protection device for terminating the end of the chamber rod heaters outside of the exposure zone.  HIGH VOLTAGE !  Prior to opening these boxes, ensure that all power to the instrument is turned off. Failure to  do so will expose the operator to electric shock due to high voltage levels.