The Siemens Q250 is a 50-Amp, 2-pole, plug-on circuit breaker designed for 120/240V AC, featuring thermal-magnetic protection and a 10,000 AIC interrupting rating. It is commonly used in Siemens Type QP load centers to protect against overloads and short circuits, with a 2-inch wide profile, HACR rating, and UL listing.Key Specifications & Features:
Manufacturer: Siemens (often branded as ITE/Siemens)
Part Number: Q250
Amperage: 50 A
Voltage: 120/240 V
Number of Poles: 2 (Double Pole)
Connection Type: Plug-in
Interrupting Rating: 10,000 AIC (10 kA)
Usage: Residential panels, HVAC equipment (HACR rated)
Dimensions: Approximately 3" x 2" x 3"
Compatibility: Designed for Siemens EQ, EQL, SEQ, EQG, PL and ES series loadcentres Key Details:
Protection: Provides thermal-magnetic protection, meaning it protects against both thermal overloads and instantaneous magnetic short circuits.
Installation: Features a plug-on design for quick installation into compatible panels.
Common Applications: Often used for large appliance circuits, such as air conditioners, furnaces, and sub-panels, requiring 50 amps.
Interchangeability: While designed for Siemens panels, these types of breakers are sometimes used as replacements for other brands, though using genuine Siemens products is recommended for safety