SL4-301001-AR-AY-AC-AB
1515 (3838 Metric)
38847670-SL4-301001-AR-AY-AC-AB
ABB Visual Signaling Devices, SL Series
the angle at which a display can be viewed with acceptable visual performance.
IP (or "Ingress Protection") ratings are defined in international standard EN 6529 (British BS EN 6529:1992, European IEC 659:1989). They are?used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies?(tools, dirt etc) and moisture.