
Motion Labs Breakered Stringer Box Twist Lock L21-30 I/O x 3 Duplex Edison, Small Shell
In the fast-paced world of film and video production, nothing halts creativity faster than unreliable power distribution. Whether you’re rigging lights on a bustling set, powering high-output fixtures during a night shoot, or managing multi-circuit needs in a studio, having the right equipment is crucial. At Film and Video Lighting, we specialize in professional-grade solutions that keep your workflow seamless. That’s why our selection of L21-30 products—including power distros, cables, breakout boxes, adapters, and L21-30 to Edison converters—stands out for its durability, safety, and performance.
The NEMA L21-30 twist-lock connector is a powerhouse perfect for Live Events : rated for 30 amps at 120/208V three-phase, it’s ideal for heavy-duty applications like theatrical lighting, motion picture rigs, and live events. In this post, we’ll dive into our top L21-30 products, explain why they’re must-haves for filmmakers and videographers, and show you how to integrate them into your setup. Ready to amp up your production? Let’s explore.
Why Choose L21-30 Connectors for Film and Video Lighting or Live Events?
Before we spotlight the products, a quick primer: L21-30 connectors deliver balanced three-phase power, reducing voltage drop and ensuring consistent output for power-hungry LED panels, HMIs, and fresnels. They’re twist-lock for secure connections that withstand the rigors of on-location shoots or stage tours. For SEO-savvy pros searching for “L21-30 power distribution for film production” or “best L21-30 adapters for video lighting,” our inventory from trusted brands like Motion Labs, Lex Products, and Whirlwind offers ETL-listed reliability you can count on.
These tools not only prevent downtime but also comply with industry standards for safety—think GFCI protection, breakered circuits, and rugged enclosures. Now, let’s break down the categories.
L21-30 Power Distros: Scalable Power for Complex Setups
Power distribution units (PDUs) are the backbone of any lighting rig, and our L21-30 power distros transform a single inlet into multiple circuits. Perfect for distributing three-phase power to your entire array of lights without overload risks.
- Lex 30 Amp 3RU Enclosed Rack Mount Power Distro L21-30 to Duplex Edison: This rack-mount beast takes a single L21-30 inlet and feeds nine 5-20 Edison duplex receptacles, with feed-thru for daisy-chaining. Ideal for studio vans or control rooms, it’s built for 120/208V applications and includes circuit protection. Shop now.
- Motion Labs Stackable Distro Box 6 x L21-30: Featuring 5W Cam inputs to six breakered L21-30 outlets (plus six 20A Edison duplexes), this stackable unit is tour-ready. Phase-coded colors (black, red, blue) make load balancing a breeze on large film sets. Shop now.
- Lex 2RU Rack Mount Power Distro L21-30 to (2) L5-30 and Duplexes: Compact yet versatile, with L21-30 input/thru to two L5-30 locking receptacles and
five Edison duplexes. Great for mobile video productions needing quick rack integration. Shop now.
These distros ensure even power flow, minimizing flicker in your footage—essential for high-frame-rate shoots.
L21-30 Cables: Flexible and Rugged for On-Set Mobility
No rig is complete without quality cabling. Our L21-30 cables use premium 8/5 SOW construction for flexibility and weather resistance, perfect for extending power from generators to your lighting grid.
- Motion Labs L21-30 Twistlock 30A Cable 8/5 – 10ft: UL-listed with Hubbell connectors, this 10-foot whip handles 30A three-phase loads effortlessly. Extend your reach without signal loss on outdoor video shoots. Shop now.

Motion Labs L21-30 Twistlock 30A Cable 8/5 SOW, UL | 10ft
Pair it with longer runs for venue-to-set extensions, and you’ll never worry about voltage sag again.
L21-30 Breakout Boxes: Targeted Distribution for Precision Lighting
Breakout boxes (or stringer boxes) fan out power to individual circuits, ideal for zoning lights in a scene. Our L21-30 breakout boxes feature breakered outputs for overload protection.
- Motion Labs Breakered Stringer Box Twist Lock L21-30 I/O x 6 Duplex Edison: With L21-30 input/output and six color-coded 20A Edison duplexes, this “dog house” design is compact for tight spaces like grip trucks. ETL-listed for peace of mind. Shop now.
- Whirlwind Power Link PL2 Stringer Box L21-30 to (3) Edison Duplex: A lightweight option with L21-30 input to three 20A duplexes—perfect for smaller video setups or key light breakouts. Shop now.
- Lex Bento Enclosure, 30 Amp 3Ø L21-30 Panel Mount Inlet: Feed-thru L21-30 with three 5-20 duplexes (six circuits total), designed for convention centers or theatrical distro. Its portable enclosure suits mobile film units. Shop now.
These boxes keep your L21-30 power distribution organized, reducing cable clutter on set.
L21-30 Adapters: Seamless Transitions for Mixed Gear
Adapters bridge the gap between three-phase sources and single-phase tools. Our L21-30 adapters are built tough for repeated use in demanding environments.
- Lex 20 Amp Three Phase Three Fer L21-20P to (3) 5-20C Edison: Though rated at 20A, this adapter pulls balanced single-phase from an L21-20 (compatible with L21-30 sources) to three Edison outlets—handy for powering monitors or small lights from a three-phase feed. Shop now.
For true 30A needs, check our distros above, as they often include adapter-like functionality.
L21-30 to Edison: Convert Power for Everyday Fixtures
Converting L21-30 to Edison opens three-phase power to standard household-style plugs, making it easy to run conventional lights or accessories.
- Motion Labs Breakered Stringer Box L21-30 In / Thru to (4) L5-20: Includes Edison-compatible outputs via L5-20 to duplex conversions, with 20A breakers for safety. Shop now.
- Motion Labs Breakered Stringer 6 x 20A Duplex w/ L21-30 Input: Direct L21-30 to six breakered Edison duplexes— the ultimate converter for film lighting banks. Shop now.
These conversions ensure compatibility without compromising power quality.
Final Thoughts: Elevate Your Production with L21-30 Expertise
Investing in quality L21-30 products isn’t just about power—it’s about empowering your vision. From L21-30 power distros for rack setups to L21-30 to Edison adapters for quick fixes, Film and Video Lighting has the gear to keep your lights blazing. Browse our full collection today and gear up for your next project. Questions? Our experts are here to help—contact us for custom configs.
Tags: L21-30 power distribution, film lighting cables, video production adapters, L21-30 breakout boxes, three-phase distro for sets
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