Leviton 320MI7W 20A Mechanical Interlock Enclosure, 2-Pole 3-Wire, 480V

Deliver dependable, code-compliant power control for security and surveillance systems with the Leviton 320MI7W mechanical interlock enclosure. Purpose-built for mission-critical environments, this enclosure combines a mechanical interlock to prevent unsafe simultaneous connections with an IP67 watertight design that stands up to outdoor deployments and harsh industrial conditions. The 320MI7W supports 20A at 480V in a 2-pole, 3-wire configuration, making it ideal for powering monitoring racks, CCTV and networked security devices while maintaining clear circuit protection strategy thanks to its non-fused design.

Engineered to IEC 309 standards and using North American pin-and-sleeve receptacles, the unit simplifies installation and reduces on-site troubleshooting. The lockable interlock prevents backfeed and accidental energization during maintenance, protecting personnel and equipment. Color-coded red housing improves visibility for quick identification in crowded electrical rooms or field sites. For integrated security, surveillance, and networking deployments that require reliable, weatherproof power connections, choose Leviton’s trusted solution. Order the 320MI7W today and specify the compatible hub (sold separately) to complete your installation.

• Provides fail-safe power isolation with a mechanical interlock to prevent simultaneous mating and reduce downtime
• IP67 watertight enclosure protects critical security and surveillance power connections from dust and moisture outdoors
• Rated for 20A, 480V (2-pole, 3-wire) to support medium-voltage distribution for monitoring, networking and industrial equipment
• North American pin-and-sleeve compatibility and IEC 309 compliance simplify integration with existing power infrastructure
• High-visibility red housing and non-fused design reduce connection errors and allow facility-level overcurrent coordination