Conveyor Belt Misalignment Switch LHP-L50, LHPE-10/2-L50
- Stepless adjustable space between roller and belt
- Double ball beared roller
- Up to 4 Kontakte NC plus 4 NO
- Silver- oder gold contacts
- Snap action with positive opening
- Impact resistant enclosure of BMC
- 2 cable entries
- IP 67
Off-track switches are used along belt conveyors to reduce the risk of damage or destruction of the belt by misalignment of the belt.
The design of these misalignment switches considerates heavy duty service. Enclosures made of most stable, impact resistant, thick-walled and strongly corrosion resistant fibre-glass-reinforced polyester (BMC) or made of cast iron as well as the roller levers made of best components available, such as roller bodies, shafts and ball bearings all made of stainless steel, are the best guarantees for long years of reliable service.
Both types of enclosure are IP67 protected (water- and dust proof).
With an increasing value of misalignment of the conveyor belt the roller lever of the switch will be displaced out of his rest position. If the travel of the displacement oversteps a threshold the changing over of the contacts happens with snap action. The secure opening the NC-contacts is guaranteed by the direct opening system (positive drive). Optional is the version for 2-stage- switching, first stage for pre-warning and the second for shutting down. If the value of misalignment should be reduced, the resetting of the contacts effects automatically. Optional is a latching mechanism (resting in actuated position, only manual reset with direct access on the switch).
The contacts are made of silver, optionally they are coated by gold.
For a reliable restart of the conveyor after a stoppage it is essential that the contacts will close with a very low electrical transition resistance. Therefore all contacts perform with every opartion a self cleaning action. Each micro switch is certified by VDE and CCC and is signed by:
RegNr. 6671 or 6827 or 40026213
For the Russian market these misalignment switches are GOSTR certified.
The angle of the roller lever on the switch shaft is adjustable stepless. It facilitates the stepless adjustment of the tolerated misalignment. The roller is made of stainless steel and is twin ball beared. The large diameter of the roller of 50mm seasons the switch for reliable service on fast conveyors.