Overview:
The Siemens MBK150A is a 150-amp main breaker conversion kit designed to upgrade a main-lug load center into a main-breaker panel. With its bolt-on configuration and thermal-magnetic trip technology, this breaker kit offers dependable overcurrent protection and centralized control of residential electrical distribution.
Key Specifications:
Model Number: MBK150A
Amperage Rating: 150 amps
Voltage Rating: 120/240 VAC, single-phase
Interrupting Capacity: 22,000 AIC (Amps Interrupting Capacity) at 240 volts
Poles: 2-pole breaker
Mounting Style: Bolt-on installation
Trip Type: Thermal-magnetic (LI type — long-time and instantaneous)
Conductor Range: Typically supports copper or aluminum conductors from #1 AWG up to 300 kcmil
Dimensions:
Length: Approx. 6.4 inches
Width: Approx. 4.6 inches
Height: Approx. 4.1 inches
Weight: Around 1.9 pounds
Certifications:
UL Listed
CSA Certified
ANSI Standard Compliant
Construction: Molded case with heavy-duty terminals and bolt-on lugs for secure connection
Application: Converts a main lug load center into a main breaker panel for residential or light commercial systems
