Siemens Q2100 Type QP 2 Pole 100 Amp 120/240 VAC 10 kA Plug In Circuit Breaker

I installed this Siemens Q2100 breaker as part of a subpanel upgrade that nearly broke my will to live. Honestly, when it comes to circuit breakers, you're not looking for an inspirational performance—you just want it to click in, stay cool, and not reduce your garage to a smoky crater. This one delivered.

Installation was a breeze, assuming your definition of "breeze" involves crawling around your garage like a feral electrician, contorting your body into Cirque du Soleil positions while praying your main panel doesn’t throw a tantrum mid-wire strip. I was one sweaty slip away from becoming a cautionary tale on Reddit.

That said, Nassau National Cable came through clutch—solid price, fast shipping, and zero nonsense. I ordered, it shipped, it arrived, it broke circuits like a champ. I’ll definitely be ordering more from them for my next masochistic DIY adventure.

So if you want a breaker that works like it’s supposed to (no sparks, no drama, just cold unflinching reliability), and you’d like to buy from a vendor who doesn’t ghost you or ship you a mystery box of sadness—this is the one.

Siemens made the breaker. Nassau made the day. My back may never recover, but at least my circuits are protected. 🔥⚡