DUK Conveyor Belt Misalignment (Off-Track) Switch LHPEw-18/2-L50
NEW Item
Manufacturer Part Number: LHPEw-18/2-L50
Variant:
| Prewarning contacts |
NC x 2, N0 x 0 |
| switching angle |
8° |
| Stop contacts |
NC x 2, N0 x 0 |
| switching angle |
15° |
| latching |
YES |
| Contacts |
Silver |
Conveyor Belt Misalignment (Off-Track) Switch
- 50mm diameter roller
- optional latching
- Up to 4 contacts NC + 4 NO
- Snap-action, direct opening
- Silver or Gold contacts
- Stepless adjustable gap between lever and belt
- Enclosure of BMC (FRP)
- IP67
The design of these misalignment switches considerates heavy duty service. Enclosures made of most stable, impact resistant, thick-walled and strong corrosion resistant fibreglass-reinforced polyester (BMC) or made of cast iron in junction with their high degree of protection of at least IP67 as well as at least IK08 are best guarantors. The 50mm diameter ballbeared roller on the actuation arm facilitates a long lasting reliable service alongfast belt conveyors.
Misalignment switches are for pair-wise installation, left and right of the belt. If the belt gets off-track, 1 of these 2 rollers will be touched by the edge of the belt and shifted against a resetting force. If the shifting angle oversteps an individually adjustable threshold the contacts get snap action operated. 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 the latching mechanism (resting in actuated position, with manual reset).
The contacts are made of silver, optionally they are gold coated. For reduction of the electrical transition resistance, the contact surfaces perform with each operation a wiping action. The NC-contacts are direct opening (positive drive). Each micro switch is certified by VDE and CCC and bears their signs For the Eurasian market these switches bear the EAC sign.
For adjustment of the gap between edge of the belt and the roller the roller arm can be adjusted and clamped in any angle on its shaft. The smooth running roller made of stainless steel is twin ball beared. With its diameter of 50mm this roller is best seasoned for fast conveyors.
Technical Data
- Conforms to standard EN60947-5-1, EN 60529, EN 60204, with latching EN 60947-5-5
- Approval EAC Eurasian Conformity
- Switch point fix adjusted, see selection table below (travel)
- Roller lever
- roller body 50mm diameter
- angle on the switch shaft stepless adjustable
- roller body and axis and twin ball bearing of stainless steel
- hub: Alloy of Nickel Aluminium Bronce
- Max. shifting of lever 75° out of neutral
- Micro switches Direct opening of the NC’s, snap action, wiping
- I th (thermical current) 10A
- Rating Silver: 400VAC 6A / 230VAC 8A / 24VDC 10A / 80VDC 3A
- Minimum Current Gold: 1mA @ 6VDC
- Utilization Category
- Silber: AC-15 230V 1A DC-13 110V 0,5A
- Gold: AC-12 230V 250mA DC-12 110V 250mA
- Ui Rated Insul. Voltage 400V
- Uimp Rated Impulse 4kV
- Approval of microswitches
- Terminals Screw, each terminal clamp 1 or 2 cables, each max 2,5mm²
- Protection enclosure at least IP67 / EN 60529, at least IK08 / EN 62262
- Cable Entries 2 x M25, closed by IP67-protecting plugs
- Enclosure Material
- BMC (Fibreglass Reinforced Polyester)
- Cast Iron
- Colours standard: yellow RAL 1003, optional: red RAL 3000
- Weight / Mass approx.
- 2.9 kg (BMC),
- 6.5 kg (cast iron)
- Mounting direction enclosure: free / lever: roller above hub
- Ambient temperature for operation: - 40°C up to +85°C (-55°C on request)
- Safety values acc. EN ISO 13849-1
- Without consideration of the wear of the roller (this wear can be detected very easily, thus this wear can be covered by the DC by nearly 100%)
- B10d with latching 80000 cycles, without latching 500000 cycles
- TM with latching 20 years, without latching max 25 years
