Gleason Furnas Brand Series 54 Limit Switches
 |
|
Limit the travel of electrically operated doors, conveyors, hoists, machine tool work tables and similar devices.
Equipment having rotating mechanisms, or linear motion which can be translated into rotational motion, can be
controlled by these versatile switches. FURNAS SERIES 54 SWITCHES can be mounted in any position and are easy to
wire and adjust.
Features:
• Four Gear Ratios
• Standard, Long Dwell or Fine Adjustment Cams
• Right or Left Hand Shaft
• Easy to Wire and Adjust
• Mount in Any Position
• Rugged Die-cast Aluminum Housing
• Available for NEMA 1, NEMA 4, and NEMA 12
Applications
• Multi-use Shaft... Attach Drive Sprocket
using Woodruff Key, Pin or Setscrew
Gleason Furnas Brand Series 54 Limit Switches Information
|
Gleason Series 55 Rotary Limit Switches
  |
|
Series 55 Limit Switches for overtravel protection and other uses on material handling equipment, hoists, cranes, valves,
compacting equipment, machine tool lead screws, packaging machinery, powered doors, gates and windows, etc. Offers models
that are direct replacements for Hubbell Workplace Solutions Series 15 and G.E. Series CR115 switches.
Features:
• Choice of six gear ratios
• Two, Three or Four switch models
• Industrial duty S.P.D.T. or D.P.D.T. snap
switches are U.L.® and C.S.A.® listed
• Right hand, left hand or dual shaft models
• Easy, precision timing adjustment
• Rugged die cast enclosures
• Industrial grade bearings
• High strength steel multi-use shaft with
#404 Woodruff key slot, 0.19 dia. hole and
setscrew dimple
• NEMA 4 construction
Gleason Series 55 Rotary Limit Switches Information
|
|
EuclidTM Power Limit Switch, Type 4220
 |
|
The EuclidTM Power Limit Switch is a device well suited for crane hoist overtravel protection in
repetitively worked applications and under severe environmental conditions. Maintenance requirements
obviously will vary with service conditions. Even though the device has been carefully designed to
minimize maintenance due to wear and adverse environmental conditions, a periodic inspection and
maintenance program is mandatory in the interests of insuring maximum protection.
D-C Limit Switches are devices that are used to interrupt the main power circuit, setting up a
dynamic braking circuit that quickly stops hook travel with a minimum of drift.
A-C Limit Switches are similar in construction to D-C Limit Switches. The difference is in
operation. A-C Limit Switches disconnect two power lines to the hoist motor which then is
stopped by a magnetic brake.
Euclid Power Limit Switch - Type 4220 Specification
|
EuclidTM Quick Break Power Limit Switch, Type 4225
 |
|
EuclidTM quick break limit switches for hoists are normally closed by the weight of the striking lever.
The movement of the lever on its upward travel, when engaged by the hoist hook block on its upward travel,
causes the switch to quickly break the circuit to the motor with very little upward movement of the crane
hook. The switch is automatically reset by the weight of the striking level when the hook is lowered.
Features:
• NEMA & CEMA ratings 1, 3, 4, 9 general purpose,
weather proof, watertight, explosion-proof enclosures.
• Mill duty construction.
• Reversible finger tips and segments for longer life.
• Easy maintenance and access to fingers, contact tips,
drum segments and tension springs.
• Moving and stationary contacts are made from hard
drawn copper.
• Automatic reset.
Quick Break Power Limit Switch - Type 4225 Specifications
|
|
