The Siemens Q220 is a 20-amp double-pole Type QP breaker intended for 240V branch circuits such as small water heaters, ductless HVAC equipment, or other two-wire loads that require common-trip protection. Its QP plug-in design allows it to snap into compatible Siemens and Murray residential panels while occupying two adjacent spaces across both phases. The thermal-magnetic trip system protects the circuit from prolonged overloads and responds rapidly to short-circuit faults without relying on electronic sensing. Rated 10 kAIC and covered by a Siemens Lifetime Limited warranty, the Q220 is a standard residential choice for light-duty 240V circuits.
What equipment typically uses a 20-amp double-pole breaker?
A 20-amp double-pole breaker is commonly used for 240V circuits serving small air-conditioning equipment, compact water heaters, or dedicated appliances that need two hot legs and a 20-amp rating. It is not the same thing as a 20-amp single-pole kitchen receptacle breaker. The connected equipment nameplate should always be the deciding reference.
Is the Q220 a plug-in breaker for residential load centers?
Yes, the Siemens Q220 is a residential Type QP plug-in breaker. It mounts into two adjacent panel positions and snaps onto both bus bars to provide a 240V common-trip branch circuit. It is designed for listed Siemens and Murray panels, not for unrelated panel brands.
How is a double-pole breaker wired differently from a single-pole breaker?
A single-pole breaker feeds one hot conductor and a neutral for a typical 120V branch circuit. A double-pole breaker feeds two hot conductors from opposite phases so the load sees 240V, and both poles trip together. That common disconnect is why you use one double-pole breaker instead of two separate singles.
How do I know if my Siemens panel accepts the Q220?
Look for the breaker compatibility chart or labeling inside the panel door. The Q220 is listed for Siemens ES, EQ, PL, E, P, W, HW, HPW, G, HG, SGF, SN, XG, and OG series panels as well as Murray load centers. If the panel calls for Type QP, this breaker matches that requirement.
# Siemens 20 Amp Double Pole Type QP Circuit Breaker (Q220) **Model:** `Q220` **Brand:** Siemens **Category:** Circuit Breaker > The Siemens Q220 is a 20-amp double-pole Type QP breaker intended for 240V branch circuits such as small water heaters, ductless HVAC equipment, or other two-wire loads that require common-trip protection. Its QP plug-in design allows it to snap into compatible Siemens and Murray residential panels while occupying two adjacent spaces across both phases. The thermal-magnetic trip system protects the circuit from prolonged overloads and responds rapidly to short-circuit faults without relying on electronic sensing. Rated 10 kAIC and covered by a Siemens Lifetime Limited warranty, the Q220 is a standard residential choice for light-duty 240V circuits. ## Specifications | Attribute | Value | |---|---| | Product Type | Circuit Breaker | | Poles | 2 | | Amperage | 20 | | Voltage Vac | 240 | | Interrupt Rating Ka | 10 | | Trip Type | Thermal-Magnetic | | Afci Protection | No | | Gfci Protection | No | | Self Test | No | | Plug On Neutral | No | | Wire Gauge Awg | 14-10 | | Compatible Panels | Siemens ES, EQ, PL, E, P, W, HW, HPW, G, HG, SGF, SN, XG, OG series; Murray panels | | Certifications | UL 489 | | Warranty | Lifetime Limited | ## What's Included - (1) Siemens Q220 Circuit Breaker Source: https://www.jaspecs.com/siemens/circuit-breaker/q220-siemens-20a-double-pole-circuit-breaker/