STANDBY POWER INTERLOCK KIT – Manual Transfer Interlock Kit The Siemens Standby Power Interlock Kit is designed for use on load centers or meter combinations that accept 2-pole circuit breakers opposite one another. It serves as a manual transfer interlock to prevent dangerous feedback between two sources of power, ensuring that both main breakers cannot be ON simultaneously. This product is suitable for electrical distributors and switchgear suppliers involved in residential standby power systems, providing reliable interlocking solutions for load centers. Specifications Manufacturer: Siemens Manufacturer Part #: ECSBPK01 Amperage Rating: 225 amperes Application: For use on load centers or meter combinations that will accept 2-pole circuit breakers opposite one another Standard: UL/NEMA 1/3R Mounting: Flush or Surface Dimensions (L x W x H): 6.25 in x 7.00 in x 0.80 in Product Weight: 0.14 lbs Country of Origin: Mexico Features Prevents hazardous line feedback between utility and standby power sources Manual transfer interlock kit attaches directly to circuit breakers, not the load center trim Designed for use with Siemens QP, QPH, HQPH utility and standby main breakers Compatible with residential standby power systems and load centers requiring safe manual transfer Downloads & Links Spec Sheet Spec Sheet