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GN 251.2
Setting bolts
with limit switch
Description
Specification
Types
- Type S: Normally open
- Type O: Normally closed
Bolt Steel
- Tensile strength class 5.8
- Hexagon head hardened to HRC 45
- nickel plated
Hexagon nuts Steel
nickel plated
End limit switch
- Voltage: 5 ... 24 V DC
- Switching load recom.: 5-10 mA
- Switching load: 20 mA DC max.
- Life expectancy: 3 mio. operations
- Temperature range: -10 °C ... +80 °C
- Load: ~1 N
Supply cable PVC:
- Ø 3 ; 2-phase, ~ 2 meters long
- max. tensile load 30 N
- grey for Type S (normally open)
- black for Type O (normally closed)
Information
Setting bolts GN 251.2 are supplied with a hardened round head which serves as a firm end stop.
In general these bolts are installed with a locknut.
When the workpiece contacts the bolt head an electrical signal is transmitted by means of the limit switch.
By means of the knurled nut, the limit switch can be installed resp. taken out without having the need to loosen the setting bolt.
Operating instructions showing more important technical information are included with every setting bolt.
Technical information
- Strength values of screwsÂ
- IP Protection classesÂ
GN 251.2
| d | l1 | e | k | l2 max. | l3 | s |  |
||
|---|---|---|---|---|---|---|---|---|---|
| Code | Actions | ||||||||
| GN 251.2-M6-21-O | M 6 | 21 | 11.5 | 4 | 3 | 3.6 | 10 | 50 |
|
| GN 251.2-M6-21-S | M 6 | 21 | 11.5 | 4 | 3 | 3.6 | 10 | 45 |
|
| GN 251.2-M8-25-O | M 8 | 25 | 15 | 7 | 4 | 5 | 13 | 71 |
|
| GN 251.2-M8-25-S | M 8 | 25 | 15 | 7 | 4 | 5 | 13 | 60 |
|
| GN 251.2-M10-25-O | M 10 | 25 | 19.6 | 7 | 4 | 6 | 17 | 80 |
|
| GN 251.2-M10-25-S | M 10 | 25 | 19.6 | 7 | 4 | 6 | 17 | 73 |
|
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