GN 251.2 Setting bolts with limit switch


Product description


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.


  • Tensile strength class 5.8 (500 N/mm2)
  • 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 million 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)

Protection class IP 40

RoHS compliant

Technical drawing

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GN 251.2 Setting bolts with limit switch sketch

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Selected Part (How to order)

Weight: 0,044 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 150 Euro -> 10 % discount
from 250 Euro -> 20 % discount
from 350 Euro -> 30 % discount
All prices in accordance with our price list No. 51, valid from 1 February 2018, plus VAT only valid for Germany.

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