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The KORA SMB20172 Square Box is a robust electrical junction box measuring 4” x 4” x 2 1/8” with a capacity of 30 cubic inches. Designed for easy installation, it accommodates various applications while providing excellent protection and connectivity for your wiring needs. Ideal for residential and commercial projects.
The SMB20172 provides 30 cubic inches of usable volume. Under the Canadian Electrical Code (CEC), each conductor fill is calculated by wire gauge — for example, 14 AWG conductors count as 2 cu. in. each and 12 AWG as 2.25 cu. in. each. This 30 cu. in. box offers ample room for most standard residential and light commercial junction or device applications. If you're unsure about fill calculations for your specific wiring, our team is happy to help.
The KORA SMB20172 accepts standard 4" square accessories including flat covers, raised device covers (single-gang or two-gang mud rings/plaster rings), and blank covers. Most industry-standard 4" square accessories from common manufacturers are dimensionally compatible. Reach out to our team with your specific finishing or device requirements and we'll help match the right accessories.
The SMB20172 is a standard steel square box intended for dry or damp indoor locations in residential and commercial construction. It is not rated for outdoor or wet locations on its own. For outdoor or wet-location applications, a weatherproof enclosure or a listed weatherproof cover would be required. Contact us if you need guidance on the right enclosure for your specific environment.
