Casseta electrica metallica normae Americanae, ex acciaio galvanizato, 4" × 2", rectangularis, ductilis, utilitaria, crassitudinis 1,6 mm, profunda 1-7/8"; casseta utilis

Authoritative Electrical Certification (Certified Safety): Authoritative industry certification mark cETL clearly die-stamped on the enclosure surface, fully complying with the National Electrical Code (NEC) and Canadian Electrical Code (CEC) for construction in Canada and North America for hassle-free project acceptance.

Heavy-duty galvanized steel material: The housing is made of high-strength galvanized steel via stamping. It offers excellent corrosion resistance, rust prevention, fire resistance, and explosion-proof performance, ensuring long-term protection of internal wiring.

High-precision screw mounting holes for tight, seamless fit during installation. Edge screw mounting ears feature thickened design with fine built-in threads, fully compatible with standard 2-gang switch plates, outlets, or mud rings. They resist thread stripping even after frequent, long-term plugging and unplugging.

Schruvis praemontati pro terra: Series principalis terminalium viridium pro terra (notata GR) in medio sunt omnia praemontata.

Spatium internum extra-magnum (classis capacitatis 21 Cu In) impressum in fundo cum GR 21 Cu designo magnae capacitatis, quod spatium amplum praebet ad dissipandum calorem et flexiones internarum filorum, vitans pericula supercalefactionis ex congestione conductorum. Id est ideale ad continendum plures series filorum aut modulos interruptorum intelligentium.

Foramina multifunctionalia pro flexibilitate connexorum: Foramina praecisa variarum magnitudinum (inclusis diametris communibus tuborum ut 1/2" et 3/4") sunt scientifice disposita circa et in fundo cistae. Operarii facile ea expellere possunt sine instrumentis professionalibus. Id permittit ingressum multiplex tuborum ex pluribus directionibus simul, efficaciam constructionis multum augens.