LIMIT SWITCHES
Furnas Brand Series 54 Rotary Limit Switches
Limit the travel of electrically operated doors, conveyors, hoists, machine tool work tables and similar devices. Equipment having rotating mecha- nisms, 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.
Switches Feature
•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
•Available for NEMA 1, NEMA 4, and NEMA 12 Applications
•Multi-use Shaft…Attach Drive Sprocket using
Woodruff Key, Pin or Setscrew
Application
Furnas Series 54 switches are designed to serve as pilot controls for magnetic reversing starters and contactors which in turn make and break full voltage between line and load. Contacts in the switch are operated when the external shaft is rotated. For the switch to perform a pilot control function, the contact must be wired in series with the coil circuit of a magnetic reversing starter or contactor.
The shaft may rotate in either direction. When tripped, if rotation direction is reversed, the contacts will reset in 1/4 to 1 1/2 turns, depending on
Fine adjustment cams are also available. This feature increases accuracy in setting the number of turns to cause the contact to operate.
Gear |
|
| Turns of Drive Shaft to Trip Contacts |
| Contact | Circuits |
| NEMA 1 & 12 | NEMA 4 | ||||
|
|
|
|
|
|
|
|
|
| Industrial Use | Watertightse | ||
Ratio |
| Min. |
| Min. | Overtravel |
| Reset | Blocks | NO |
| NC | ||
|
|
|
| Model No. | Model No. | ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Standard Cams |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54BB23FE | 54BB23EE |
18 to 1 |
| 16 |
| 1 | 1.75 |
| 0.25 | 3 | 3 |
| 3 | 54BB33FE | 54BB33EE |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54BB43FE | 54BB43EE |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54BB23FB | 54BB23EB |
36 to 1 |
| 32 |
| 1 | 3.5 |
| 0.5 | 3 | 3 |
| 3 | 54BB33FB | 54BB33EB |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54BB43FB | 54BB43EB |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54BB23FC | 54BB23EC |
72 to 1 |
| 64 |
| 1.5 | 7.5 |
| 1 | 3 | 3 |
| 3 | 54BB33FC | 54BB33EC |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54BB43FC | 54BB43EC |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54BB23FD | 54BB23ED |
108 to 1 |
| 96 |
| 2 | 11 |
| 1.5 | 3 | 3 |
| 3 | 54BB33FD | 54BB33ED |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54BB43FD | 54BB43ED |
Long Dwell Cams |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54EB23FE | 54EB23EE |
18 to 1 |
| 15 |
| 1 | 2.5 |
| 0.5 | 3 | 3 |
| 3 | 54EB33FE | 54EB33EE |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54EB43FE | 54EB43EE |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54EB23FB | 54EB23EB |
36 to 1 |
| 30 |
| 1.5 | 5 |
| 1 | 3 | 3 |
| 3 | 54EB33FB | 54EB33EB |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54EB43FB | 54EB43EB |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54EB23FC | 54EB23EC |
72 to 1 |
| 60 |
| 2 | 10 |
| 1.5 | 3 | 3 |
| 3 | 54EB33FC | 54EB33EC |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54EB43FC | 54EB43EC |
|
|
|
|
|
|
|
| 2 | 2 |
| 2 | 54EB23FD | 54EB23ED |
108 to 1 |
| 90 |
| 2 | 15 |
| 3 | 3 | 3 |
| 3 | 54EB33FD | 54EB33ED |
|
|
|
|
|
|
|
| 4 | 4 |
| 4 | 54EB43FD | 54EB43ED |
Fine Adjustment |
|
|
|
|
|
|
|
|
|
|
|
|
|
18 to 1 |
| 16 |
| 1 | 1.75 |
| 0.25 | 2 | 2 |
| 2 | 54BB73FE | 54BB73EE |
36 to 1 |
| 32 |
| 1 | 3.5 |
| 0.5 | 2 | 2 |
| 2 | 54BB73FB | 54BB73EB |
72 to 1 |
| 64 |
| 1.5 | 7.5 |
| 1 | 2 | 2 |
| 2 | 54BB73FC | 54BB73EC |
108 to 1 |
| 96 |
| 2 | 11 |
| 1.5 | 2 | 2 |
| 2 | 54BB73FD | 54BB73ED |
Field Modifications
Contact Block Kit (1 NO 1 NC) | Cat. No. |
Standard Cam | 54BBGB |
Long Dwell Cam | 54EBGB |
Contact Block Kit (1 NO 1 NC) | Cat. No. |
Standard Cam | 54BBGD |
Long Dwell Cam | 54EBGD |
Accessories | Cat. No. |
Adjustment Tool | D27760001 |
Kits include switch block, cam and mounting hardware
Contact Block Specifications 15 Amp 120, 240, 480 or 600 VAC. 1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC
0.8Amp 115 VDC, 0.4 Amp 230 VDC Pilot Duty 600 VAC Max.
|
| (4) Mounting Holes |
| ||
Tapped for |
|
| for No. 10 Screw | 1.00(25) | |
1" Conduit |
|
|
|
|
|
|
|
| 4.25 |
|
|
| 0.50 |
| (108) |
| 3.50 |
| 3.31 |
| |||
2.13 | (13) |
| |||
| (84) |
| (89) | ||
(54) |
|
|
| 0.625(16) |
|
|
|
|
|
| |
| 0.56 | 1.81 |
|
| |
Approximate Shipping | (14) | (46) | 4.875 (124) | 1.81 | |
Weight 6 lbs (2.7 kg) |
|
|
| 5.31 (135) | (46) |
|
|
|
|
| |
Gleason Reel Corp. • 600 South Clark St. • P.O. Box 26 • Mayville, WI 53050 • Phone: | 25 |
