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111032 Rev --
REPEAT ACCURACY
The type of operating head used on an assembled limit
switch determines repeat accuracy for the switch assembly.
Assembled limit switches, without rollers used on operating
heads or levers, have a repeat accuracy as listed in Table 1
only.
Assembled limit switches with rollers used on operating
heads or levers have a repeat accuracy determined as
follows: add the repeat accuracy tolerance of Table 1 for the
type of operating head used to the concentricity tolerance of
Table 2 for the type of roller used on the lever or operator.
The combination of these two tolerances is the limit switch
repeat accuracy.
Description
Operating Heads
Side Rotary
Spring Return
Low Temperature
Spring Return
Spring Return
Maintained
Two position
Pushbutton
Side Push
Spring Return
Pushbutton Adjustable
Spring Return
Push Roller
Spring Return
Pushbutton
Maintained
Pushbutton
Top Push
Spring Return
Pushbutton Adjustable
Spring Return
Push Roller
Spring Return
Wobble Head
Spring
Return
Effective 9/97
Travel To
Operate
Contacts
Standard
5°
5°
Low Force
15°
50°
0.065 in.
0.065 in.
0.065 in.
0.200 in.
0.040 in.
0.040 in.
0.040 in.
Standard
10°
Duty
Heavy
10°
Duty
TABLE 1
Side Operated
Top Operated
1
Measured along arc for 1-1/2" lever or measured along push operator axis.
TABLE 2
Lever Roller Type
Push Roller Type
OPERATING HEAD DATA
Operating Data —Nominal
Travel To
Total
Reset
Travel
Contacts
2°
90°
2°
90°
6°
90°
1.5 in.-lbs.
50°
90°
0.030 in. 0.290 in.
0.030 in. 0.290 in.
0.030 in. 0.290 in.
0.130 in. 0.320 in.
0.020 in. 0.280 in.
0.020 in. 0.280 in.
0.020 in. 0.280 in.
6°
15°
6°
15°
Operating Head
Standard Construction
Low Operating Force
Two-Step
Neutral Position
Side Push
Top Push
Type
Diameter
Width
Nylon
3/4"
5/16"
Metal
3/4"
5/16"
Nylon
3/4"
1"
Ball Brg.
11/16"
1/4"
Nylon
1-1/2"
9/32
Metal
7/16"
5/32"
Metal
3/4"
5/32"
Operating
Force To
Minimum
Operate
Return
Contacts
Force
(See Table)
3 in.-lbs.
4.5 in.-oz.
3 in.-lbs.
4.5 in.-oz.
2.5 in.-oz.
3 in.-lbs.
—
4 lbs.
8 oz.
4 lbs.
8 oz.
4 lbs.
8 oz.
5 lbs.
5 lbs.
4 lbs.
8 oz.
4 lbs.
8 oz.
4 lbs.
8 oz.
2 in.-lbs.
2.4 in.-oz.
2 in.-lbs.
2.4 in.-oz.
Page 3
Repeat Accuracy
1
within 0.0012"
within 0.0024"
within 0.006"
within 0.006"
within 0.003"
within 0.002"
Concentricity Tolerance
+/-0.002"
+/-0.001"
+/-0.005"
+/-0.002"
+/-0.005"
+/-0.002"
+/-0.005"
Temp.
Catalog
Range
No.
A
E50DR1
D
E50DR19
A
E50DL1
B
E50DM1
B
E50DS1
B
E50DS2
B
E50DS3
B
E50DH1
C
E50DT1
C
E50DT2
C
E50DT3
C
E50DW1
C
E50DW2
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