Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 174; Flight Crew Type 1877
Aircraft Equipment Problem Critical
Flight Crew Overcame Equipment Problem
Human Factors
During climbout from ZZZ; we had an electrical irregularity resulting in loss of VHF1; Yaw Damper; four of our six CDS display screens; as well as other less important observed failures. During troubleshooting we discovered that a safety pin attached to a piece of luggage had somehow hooked around the Standby Power CB (Circuit Breaker) and pulled it out. We consulted with [Maintenance Control]; but they could not advise us to reset CB as this conflicted with Flight Manual Guidance; and that resetting the CB could only be done using Captains Emergency Authority. After assessing our situation and available options; I decided the safest course of action was to reset the CB.Had we not reset the breaker:We would lose all the electrical system functionality and redundancies that the Standby Bus provides.We would be down to 2 of 6 cockpit displays (1 was deferred inop prior to flight).We would be down to one VHF radio + ACARS.I only made this decision because I was confident there was no underlying electrical problem; this CB is not on the list of reset-prohibited CBs; and resetting it was a much safer course of action than simply diverting with multiple degraded systems. To be clear; I would not have reset it if there was any doubt of the reason why it was out. After resetting the CB; we observed all affected systems return to normal operation.
B737 pilot reported a loss of VHF1; Yaw Damper; four of our six CDS display screens and found it was a CB that was pulled out due to luggage moving it.  Pilot reset CB and everything went back on line.