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

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. 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

2000

14-19

2120

2122

2130

200

8-11

Approx. 2 Sec. After Shaft Rotation Failure

2120-1

2122-1

2130-1

100

5-7

Approx. 3 Sec. After Shaft Rotation Failure

2120-5

2122-5

2130-5

2-3

Approx. 5 Sec. After Shaft Rotation Failure

2120-10

2122-10

2130-10

2000

25-70

30-40% Below Trip Point

2120-AI

2122-AI

2130-AI

2000

60-140

30-40% Below Trip Point

2120-A2

2122-A2

2130-A2

150

2000

125-450

30-40% Below Trip Point

2120-A3

2122-A3

2130-A3

240

2000

200-600

30-40% Below Trip Point

2120-A4

2122-A4

2130-A4

200

10-45

30-40% Below Trip Point

2120-AII

2122-AII

2130-AII

100

5-15

30-40% Below Trip Point

2120-A15

2122-A15

2130-A15

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