UL1077 Recognized. These hydraulic magnetic circuit breakers are available in AC and DC trip curves. The hydraulic magnetic overload technology protects the circuit in both overload and short circuit. All circuit breakers are ROHS compliant. The NDB3-100 series of circuit breakers are screw mount. The NDB3-100 has a rated current from 1A to 100A, rated voltage AC230V/400V, DC80V, 1, 2 and 3 pole. The panel mount circuit breakers are available in the NDB3-30 series. The NDB3-30 has a rated current from 1A to 30A, rated voltage AC250V, DC80V.