BRKR 30A 1P 3/4IN 10K QD

🔌 What it is

The BRKR QD 3/4 2P 120/240V 30A is a Siemens Type QD plug-in circuit breaker used in residential and light commercial breaker panels.

It is a 30-amp, 2-pole breaker designed to protect 240V or 120/240V split-phase branch circuits.

🧾 What the label means

• BRKR → Circuit breaker
• QD → Siemens QD plug-in breaker family
• 3/4 → “¾-inch” QD frame style (space-saving plug-in format)
• 2P → Two-pole breaker (both hot legs tied together)
• 120/240V → Works on standard split-phase power
• 30A → 30-amp rating
• 10kA → Interrupting rating (fault current capacity)

⚡ What it does

This breaker:

• Protects a 240V or multi-wire branch circuit
• Trips on overload or short circuit
• Disconnects both legs simultaneously (common trip)
• Installs in Siemens QD-compatible load centers
• Provides protection for medium-load equipment circuits

🏠 Typical uses

• Electric water heaters
• Small HVAC condensers
• Air handlers or heat strips (low stages)
• Shop equipment and machinery
• EV chargers (often 24–32A EVSE setups)
• Subpanel or dedicated appliance circuits

🧠 Simple explanation

This is a 30-amp double breaker that shuts off both sides of a 240V circuit if the load is too high or there’s a short.