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2120 Series
2122 Series
2130 Series
4100 Series Zero Speed Switches
8100 Zero Speed Switches
PRX 120 Proximity Speed Switch
Rotoguard III Series Zero Speed Switch
Accessories
Contact Us: 1-800-745-6551

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2100 Series Zero Speed Switches
2100 Series zero speed switches are designed for service in industrial applications requiring protection against rust, rain, and hose directed water. 2100 Series switches are for shaft input speeds of 4 to 2000 RPM. Recommended method of driving is by split or flexible coupling.

Contacts actuate in either direction of shaft rotation. Housings are painted with an epoxy based powder coat to provide rust and corrosion resistance. Driving torque required is approximately 4 inch ounces.

NEMA 4/4x and NEMA 7 & 9 (EP-1 Series)

Available housings: Aluminum (AL), Cast Iron, (CI) and Explosion Proof (EP).

Approximate shipping weight:
Aluminum housings: 4 lbs.
Cast Iron housings: 8 lbs.
Explosion Proof housings: 13 lbs.
Selecting a Switch:

1. Consult the first two columns of the chart and select the speed range that most closely matches the critical shaft speed of your application.
2. From the last 3 columns, choose the model number with the appropriate contact configuration.
3. Choose a housing that best suits your needs.
  • Add "AL" in front of the model number for Aluminum housing.
  • Add "CI" in front of the model number for Cast Iron Housing.
  • Add "EP" in front of the model number for FM approved Explosion Proof.

4. Now pick the mounting style from the list in the upper right corner of the table you have been choosing from.
5. Click on the appropriate switch Series Model Number (2120, 2122 or 2130 Series) in the top left hand menu or below to order online, or call 1-800-745-6551 and ask for Sales. We will be happy to quote prices, assist you with your selection or take your order.


Application
Running
Speed
R.P.M.
(input
to
Speed
Switch)
Approximate
Contact
Operating
Speeds - RPM
Mounting Styles
Type B - See Base Mount (see drawing 8100 1B)
Type F - Flange Mount (see drawing 8100 2BFK)
Type FK - Flange mount with pilot (see drawing 8100 2BFK)
Contacts
S.P.D.T
D.P.D.T
S.P.D.T.(2)
Direction
Indicating
Model Number

N
O
T

F
I
E
L
D

A
D
J
U
S
T
A
B
L
E
Approximate
Trip-Point
On Shaft
Input Speed
Acceleration
Approximate
Drop-Out Point
ON Shaft
Speed Loss
Min.......
Max.
Slow
Loss
Rapid
Loss
24
2000
14-19
10
0
15
200
8-11
Approx. 2 Sec. After Shaft Rotation Failure
2120-1
2122-1
2130-1
8
100
5-7
Approx. 3 Sec. After Shaft Rotation Failure
4
50
2-3
Approx. 5 Sec. After Shaft Rotation Failure
30
2000
25-70
30-40% Below Trip Point
0
75
2000
60-140
30-40% Below Trip Point
0
150
2000
125-450
30-40% Below Trip Point
0
240
2000
200-600
30-40% Below Trip Point
0
15
200
10-45
30-40% Below Trip Point
0
7
100
5-15
30-40% Below Trip Point
0
 


Visit www.SpeedSwitch.com for more detailed product information. If a specific model is not listed to fit your needs, Control Concepts, Inc. can custom design a zero speed switch to your specifications.

If you have questions or need further assistance, please call us toll-free at: 1-800-745-6551 or email us at: Sales@ControlConceptsUSA.com.

Control Concepts, Inc.

100 Park Street
Putnam, CT 06260
U.S.A.

Phone: 860-928-6551
Fax: 860-928-9450