Best 480V 3 Phase Panelboard Options for 3-Phase Electrical Systems
Choosing the right 480V 3-phase panelboard is essential for safe and reliable distribution of high-voltage power in commercial or industrial settings. This guide highlights five reliable options, focusing on panelboards with main lug configurations and multiple circuit breaker counts. Each product line features copper bus, suitability for 480V systems, and UL listing. Use the buying guide below to compare capacities, space, and warranty terms to fit your electrical design.
| Product | Brand | Voltage | Configuration | Breaker Count Range |
|---|---|---|---|---|
| New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 6-3 Pole Circuit Breakers | JRL ELECTRIC SUPPLY, INC. | 480V | Main Lug | 6–100A |
| New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 3-3 Pole Circuit Breakers | JRL ELECTRIC SUPPLY, INC. | 480V | Main Lug | 3–100A |
| Panelboard Interior, 18 Spaces, 125A, 277/480V | SOUTHRO | 277/480V | Convertible Main Lug | 18 spaces |
| New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 4-3 Pole Circuit Breakers | JRL ELECTRIC SUPPLY, INC. | 480V | Main Lug | 4–100A |
| New 480 Volt 3 Phase 4 Wire Panel Main Lug Only w/ 14-3 Pole Circuit Breakers | JRL ELECTRIC SUPPLY, INC. | 480V | Main Lug | 14–100A |
New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 6-3 Pole Breakers
Product highlights include a complete panelboard with interior, trim with door, ground bar, can, and six circuit breakers suitable for 15–100 A. The unit accommodates a 250 A main, 42-space enclosure with a 65k interior rating, copper buss, and a 600 V max. It is UL-listed and backed by a one-year JRL warranty. This option is designed for 3-phase, 4-wire systems and supports 14,000 AIC circuit breakers within its 65K frame.
New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 3-3 Pole Breakers
This panel offers a complete interior package with interior components, trim with door, ground bar, and can. It ships with three circuit breakers (15–100 A), a 250 A main rating, and a 42-space interior designed for 65K copper-buss systems. It operates on 480 V max, is 3-phase/4-wire, and carries UL listing with a one-year JRL warranty. It is suitable for smaller loads or feeders requiring three 3-pole breakers.
Panelboard Interior, 18 Spaces, 125A, 277/480V
From SOUTHRO, this interior offers 18 spaces with a 125 A rating. It supports 277/480 V and features a convertible main lug arrangement for flexible field configurations. The listing emphasizes straightforward installation and compatibility with standard 3-phase, 4-wire systems. The product detail highlights ease of integration into existing panels and reliable performance for mid-sized commercial applications.
New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 9 Circuit Breakers
This option includes a complete panelboard with interior, trim, door, ground bar, can, and nine breakers (15–100 A). It supports a 250 A main, 42-space interior with copper buss, and 600 V maximum. The 65K interior rating accommodates higher interrupting capacities (14,000 AIC). It is a 3-phase, 4-wire configuration and UL listed with a one-year JRL warranty, suitable for moderate-to-heavy feeder loads.
New 480 Volt 3 Phase 4 Wire Panel, Main Lug Only w/ 14-3 Pole Breakers
This panelboard includes interior components, trim with door, ground bar, can, and nine circuit breakers (15–100 A). It features a 250 A main, 42-space interior, copper bus, and 600 V max. The unit is rated for 65K with 14,000 AIC circuit breakers. It supports three-phase, four-wire operation and is UL-listed with a one-year JRL warranty. The 14-pole breaker arrangement enables broader distribution for larger loads.
New 480 Volt 3 Phase 4 Wire Panel with 8-3 Pole Breakers
This configuration provides a complete panelboard with interior, trim with door, ground bar, can, and nine circuit breakers (15–100 A). It offers a 250 A main and a 42-space 65K interior with copper buss and a 600 V max. The panel is designed for 3-phase, 4-wire operation, UL listed, and backed by a one-year JRL warranty. It supports eight breakers up to 100 A, with a layout suitable for medium-density feeders.
New 480 Volt, 3 Phase, 4 Wire Panel Main Lug Only with 2-3 Pole Breakers
This compact option provides a complete panelboard with interior, trim with door, ground bar, can, and two breakers (15–100 A). The 250 A main rating, 42-space interior with copper buss, and 600 V max support 3-phase, 4-wire operation. It carries UL listing and a one-year JRL warranty, suitable for light-to-moderate load distributions in smaller facilities or controlled sections of larger plants.
New 480 Volt 3 Phase 4 Wire Panel Main Lug Only w/ 10 Breakers
This model combines a full interior, trim with door, ground bar, can, and ten breakers (15–100 A). It features a 250 A main, 42-space interior, copper buss, and 600 V max. The 65K interior accommodates 14,000 AIC circuit breakers. It supports 3-phase, 4-wire operation and is UL-listed with a one-year JRL warranty. This option offers a balance of space and expansion potential for growing electrical loads.
Buying Guide: Key Purchase Considerations
- Voltage and phase compatibility: Ensure the panelboard supports 480V and 3-phase, 4-wire configurations for your installation.
- Space and enclosure rating: Match the number of spaces (e.g., 18, 42) to your feeder load and future expansion. Consider interior rating (65K) and bus material (copper) for reliability.
- Main vs. main-lug configuration: Decide if you need a main breaker or main-lug-only setup based on how you will feed the panel from upstream equipment.
- Interrupting capacity (AIC): Higher AIC ratings (e.g., 14,000 AIC) accommodate larger fault currents; verify compatibility with upstream protection devices.
- UL listing and warranty: Confirm UL listing for safety compliance and check warranty terms (e.g., 1 year) for long-term support.
- Breaker counts and types: Review the number and type of breakers (2-pole, 3-pole, 4-pole) to match your circuit design and load profile.
- Expansion potential: Look for panels that allow adding breakers or upgrading bus configurations without replacing the entire enclosure.
- Installation and service factors: Consider ease of installation, availability of spare parts, and compatibility with existing conduit and grounding schemes.
- Warranty and vendor support: Favor reputable suppliers offering clear warranty terms and accessible customer support.