SF1-EX

Pin-type contact with spring return, EX-version

The pin-type contact SF1–EX is designed as a safety switch with positive contact and fulfills the demands for the use in explosion-endangered areas. It complies with the requirements of the norm series EN81-20 / EN81-50. The actuation is done by a pin with threaded stud. By the indirect actuation an especially large backlash (distance after contact opening) is allowed. The switch is used for the measuring of predetermined positions at moving parts (e.g. rope monitoring)

Features:

special version for the use in explosion-endangered areas
2 m connection cable
actuator made of brass with threaded pin M6
robust metal housing
transparent cover for function control
enclosure made of metal resp. shock-resistant plastics, self-extinguishing
with spring return
positively driven normally closed contact and normally open contact
large backlash from contact opening to the stop at actuation

Order information codes:

Technical data:

norms	EN 81-20, EN 81-50, EN 60947-5-1, EN 60079-0, EN 60079-1, EN 60079-31 EN ISO 13849-1, EN ISO 14119
switching capacity	Ui = 250 V Ith = 6 A Uimp = 4 kV AC-15: Ue = 250 V Ie = 6 A DC-13: Ue = 230 V Ie = 0.25 A
short-circuit capacity	T 6 A F 10 A
contact material	silver-nickel (minimum load 24 V / 10 mA)
actuation force	19 N
connection	2 m connection cable H05VV-F, 4 x 0.75 mm²
level of protection	IP65
ambient air temperature	-20 °C up to +65 °C
weight	660 g

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