The ETU320 release offers adjustable N-conductor protection — OFF, 50%, or 100% of the phase rating — which lets you tune the breaker for different neutral loading scenarios, common in 4-wire systems where harmonics or unbalanced loads drive neutral current.
Thermal performance across the board
That's a solid spec for enclosures near ovens, furnaces, or summer-rooftop gear. Insulation voltage rated 800 V, operating voltage up to 690 V AC.
