This specification guide provides system designers, electrical engineers, and procurement professionals with the technical criteria needed to select compliant outdoor electrical distribution boxes. The Larson Electronics ATEX-EPJB-SS. 91MM-TB10-415V-16A-R1 Explosion Proof Power Distribution Box is suitable for use in Zones 1/2 and Zones 21/22 rated flammable sites. The IP66 rated unit is protected by a. An outdoor electrical distribution box serves as the critical junction point where incoming power lines are split into multiple branch circuits for outdoor installations, parking lots, building exteriors, and industrial facilities. Certified for Zone 1, 2 (Gas) and Zone 21, 22 (Dust) with ATEX, IECEx, and CCC approvals, it guarantees compliance with global safety standards. Today, more than 3/4 of hazardous location installations are done in Class I, Division.
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