The Eaton PDG33G0400FNNN is a circuit breaker frame. It is rated 400A and 600VAC, with 3 poles and 3-phase operation. Part of the Power Defense family, it uses a 3-Frame and has a 35kA interrupting rating at 480VAC. The terminal connection has no lugs. This listing is the frame only. A compatible trip unit is required and is not included.
How should I use the 400A rating when selecting Eaton PDG33G0400FNNN?
The 400A rated current is the basis for selecting this breaker for the circuit's load and conductor protection requirements. Check those requirements against the breaker rating rather than using voltage or interrupting capacity to determine load capacity.
What does the 600VAC rating mean for circuit selection?
The 600VAC rating guides selection by circuit operating voltage. Evaluate voltage and interrupting capacity separately: the interrupting rating is 35kA at 480VAC.
How do I check the 35kA at 480VAC interrupting rating?
For a 480VAC installation, compare the available fault current at the installation point with the 35kA interrupting rating. The available fault current must not exceed that rating.
When should I choose a 3-pole breaker for a 3-phase circuit?
This breaker has 3 poles for a 3-phase circuit. Use the pole count to select protection for the circuit's phase conductors, keeping it separate from the current and voltage checks.
What does the no-lugs terminal connection mean for installation planning?
The breaker has no lugs, so conductor termination needs to be planned as part of the installation. Resolve the termination method before beginning conductor installation.
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