Siemens Q230GF GFCI Miniature Circuit Breaker

Select the Siemens Q230GF when the circuit's load and conductor protection requirements call for a 30A breaker. Coordinate the breaker rating with conductor ampacity and the load requirements.

Its 2-pole construction provides overcurrent protection for two ungrounded conductors in a single-phase circuit. Select it for circuits within its 120/240VAC rating that require 2-pole protection.

The 10kA at 120/240VAC interrupting rating is the maximum fault current the breaker can interrupt at that voltage. The available fault current at the installation point must not exceed that rating.

Yes. Overcurrent protection addresses overloads and short circuits, while GFCI protection detects current imbalance associated with leakage outside the intended circuit path. Select it when the circuit requires both types of protection.

No. Its thermal and magnetic trip settings are fixed. The thermal function responds to sustained overloads, while the instantaneous magnetic function responds to high-current faults, so selection must suit the circuit without field adjustment of those settings.

The Q230GF uses plug-on mounting and a pigtail neutral connection. Plan for a separate electrical connection for the neutral pigtail; plug-on mounting alone does not complete that connection.

The lugs accept conductors from 14-8 AWG. Select a conductor within that range whose ampacity meets the 30A circuit's requirements and installation conditions; terminal acceptance alone does not determine conductor ampacity.