ABB EntelliGuard G breakers for dependable, intelligent protection for rugged industrial electrical systems.
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Get Mini Breaker Quote- Low-Voltage Power Circuit Breakers for Switchgear
- Why Low-Voltage Power Breakers Matter in Switchgear
- ABB EntelliGuard G Features and Benefits
- Popular ABB EntelliGuard G Products
- Selective Coordination and Arc Flash Protection
- Built for Heavy-Duty Switchboard Power Distribution
- Advanced Trip Units and System Intelligence
- EntelliGuard Switchgear Breaker FAQ
- ABB EntelliGuard Glossary

Low-Voltage Power Circuit Breakers for Switchgear
ABB EntelliGuard G insulated case breakers give you reliability when designing power distribution equipment; breaker reliability is a minimum requirement. It doesn’t matter if you’re installing a new electrical room, replacing an old switchboard, or protecting important loads, the breaker you pick has a direct impact on safety, uptime, and long-term maintenance. This is where ABB EntelliGuard G circuit breakers come in.
EntelliGuard G breakers are designed for tough commercial and industrial situations, giving dependable protection, greater system intelligence, and the flexibility needed to create safer, longer-lasting electrical systems.
Why Low-Voltage Power Breakers Matter in Switchgear
The breaker that protects custom switchgear lineups and switchboards is critical to electrical system maintenance and operation. Low voltage power circuit breakers for switchgear don’t just interrupt faults; they coordinate with upstream and downstream equipment and limit arc flash energy to keep your facility running.
ABB EntelliGuard G breakers, with ratings from 400A to 6000A are designed to handle big feeders, main breakers, and applications found in hospitals, manufacturing plants, data centers, and mission-critical environments.
ABB EntelliGuard G Features and Benefits
When you install EntelliGuard G breakers, you’re getting more than just overcurrent protection. You’re getting a platform designed around real-world electrical challenges.
Key benefits include:
– High interrupting ratings to safely clear severe faults
– Fixed and draw-out designs for flexible installation
– Compliance with ANSI, UL, and IEC standards
– Proven performance in demanding industrial environments
These features make ABB EntelliGuard G circuit breakers a good choice for reliability and compliance.

Popular ABB EntelliGuard G Products
| Model Number | Description |
|---|---|
| GN08ND | 800A ABB EntelliGuard G low-voltage power circuit breaker, 3-pole, draw-out, LSIG trip, for switchgear and switchboards. |
| GN10ND | 1000A EntelliGuard G breaker, 3-pole, draw-out construction with electronic trip unit for feeder protection. |
| GN16NDEERXX4CLXL4X6V | 1600A EntelliGuard G power circuit breaker, draw-out, electric operator, LSIG protection, 600V class. |
| GB16N2S | 1600A ABB EntelliGuard G breaker commonly used as a feeder breaker in low-voltage switchboards. |
| GB32L4XXMFXXXX | 3200A EntelliGuard G low-voltage power breaker with advanced trip unit and metering capability. |
| GB40L4XXMFXXXX | 4000A EntelliGuard G breaker designed for main breaker applications in large switchgear lineups. |
| GB50L4XXMFXXXX | 5000A EntelliGuard G power circuit breaker for heavy-duty industrial power distribution systems. |
| GB60L4XXMFXXXX | 6000A ABB EntelliGuard G breaker, high interrupting rating, commonly used as a main or tie breaker. |
| G2C06L4XXXRXXXX | 600A EntelliGuard electronic trip unit configuration with LSIG protection for 600V systems. |
| GW104L4X8XRXXXX | 400A EntelliGuard G rating plug and trip configuration used in switchboard feeder applications. |
Selective Coordination and Arc Flash Protection
Selective coordination is more than a coding requirement; it’s essential when you want the breaker nearest to the fault to trip first, without shutting down the full system.
EntelliGuard G breakers allow selective coordination in arc flash protection breakers with advanced trip unit settings that give you fine-tuned response times and current thresholds.
– Limiting the scope of outages
– Improved personnel safety
– Reduced arc flash incident energy
– For facilities where uptime and worker safety are important, this level of control makes a big difference.
Built for Heavy-Duty Switchboard Power Distribution
Rugged construction and high short-circuit ratings gives confidence that your system is protected — today and years down the road.
If you’re dealing with large electrical loads, you need breakers that can keep up. Switchboard power distribution breakers 400-6000A like EntelliGuard G are made for main and feeder applications where fault currents can be extreme.
These breakers are used in:
Industrial manufacturing facilities
Healthcare and hospital electrical rooms
Data centers and critical infrastructure
Large commercial buildings
Advanced Trip Units and System Intelligence
Modern power systems have visibility. EntelliGuard G breakers support industrial circuit breaker trip units and communications that help you monitor, analyze, and respond to electrical events. Depending on configuration, you can access:
– Real-time current and voltage data
– Event and fault history
– Communication protocols for power monitoring systems
This intelligence helps you diagnose issues faster, plan maintenance proactively, and integrate breakers into broader energy management situations.

EntelliGuard Switchgear Breaker FAQ
ABB EntelliGuard Glossary
| [ Low Voltage Breaker Terms ] | [ Definition ] |
|---|---|
| Low voltage power circuit breakers for switchgear | High-capacity breakers designed for low-voltage switchgear and switchboards |
| ABB EntelliGuard G Draw-Out Breaker | Breaker designed so you can rack it in and out of its enclosure |
| Selective coordination arc flash protection breakers | Breakers engineered to coordinate trips and reduce arc flash hazards |
| Switchboard power distribution breakers 400-6000A | Large-frame breakers used for high-current distribution systems |
| Industrial circuit breaker trip units and communications | Advanced electronic trip units with monitoring and communication capabilities |