Eaton / Cutler-Hammer QBHW2025 Miniature Circuit Breaker

The QBHW2025 is designed for use in Eaton Pow-R-Line panelboards. It requires a bolt-on connection to the bus bar, so it will not fit load centers designed exclusively for plug-on breakers.

Both are Quicklag bolt-on breakers that share the same physical dimensions and fit the same Pow-R-Line panelboards. The difference is the interrupting rating: the QBHW series provides a higher 22kAIC rating at 120/240VAC, while the standard BAB series is rated at 10kAIC.

Yes. Eaton acquired Cutler-Hammer and continues to manufacture these breakers under the Eaton brand. An Eaton QBHW2025 is a direct, exact replacement for a Cutler-Hammer breaker with the same catalog number.

It is a bolt-on breaker, meaning it fastens directly to the panelboard bus bar with screws. This creates a highly secure, vibration-resistant connection commonly required in commercial and industrial electrical systems.

The breaker uses a fixed thermal-magnetic mechanism. The thermal element provides long-time delay protection to prevent nuisance tripping during temporary overloads, while the magnetic element offers instantaneous protection to quickly clear severe short circuits.

No, this breaker features fixed thermal and fixed magnetic trip settings. It does not have adjustable dials for long-time or instantaneous pickup, which is typical for miniature circuit breakers in this class.

Yes, in addition to standard AC systems, this breaker is rated for 48VDC applications. This makes it suitable for specific low-voltage DC control circuits or battery systems requiring a 25-amp, 2-pole disconnect.