221-I-B
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50461989-221-I-B
Electrical Enclosures 4.1 x 2.6 x 1.51 BLACK
a group of products which fulfill a similar need for a market segment or market as a whole.
a particular group of related products.
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.