Square D QOB130 Bolt On 1 Pole Circuit Breaker

Square D QOB130 is a 1‑pole, 30‑amp bolt‑on miniature circuit breaker rated for 120/240 VAC with a 10 kA interrupt rating, designed to protect a single branch circuit in compatible Square D panels. It supports 14–10 AWG conductors via a bolted‑on, pressure‑plate connection, enabling a secure and durable attachment to the panel bus. As part of the QOB bolt‑on family from Square D (Schneider Electric), the device provides thermal/magnetic overcurrent protection and switching for AC circuits, suitable for residential and light commercial distribution where bolt‑on mounting is required. The unit’s compact footprint measures approximately 3.5 in high by 0.8 in wide by 2.9 in deep, designed to fit within standard QOB mounting spaces while maintaining mounting rigidity. The QOB130 is commonly used in legacy or retrofit installations where bolt‑on protection is specified, bridging with compatible QOB devices to complete a panel’s overcurrent protection scheme.