MBM INSTALLATIONEaton 9395 Maintenance Bypass Module Installation and Operation Manual 164201719 Rev 3 www.eaton.com/powerquality4-244.3.7 MBP, MIS, BIB, and RIB Current SettingsThe MBP, MIS, BIB, and RIB are adjustable trip breakers set at the factory. Thesebreakers are designed to control the input and output to the UPS.Verify the settings of the installed MBP, MIS, BIB, and RIB match the values listed inTable 4‐2 and Table 4‐3. Use the continuous current (Ir) dial on each breaker to adjustthe trip current as necessary.Table 4‐2. Recommended Maximum MBM MBP, MIS, and BIB Circuit Breaker RatingsMBM Model UPS Rating Continuous Current (Ir) Breaker SettingEaton 9395 275 kVA MBM225 kVA 300A B275 kVA 350A D300 kVA 400A EEaton 9395 550 kVA MBM450 kVA 600A A500 kVA 700A Set dial half-waybetween A and B550 kVA 700A Set dial half-waybetween A and BTable 4‐3. Recommended Maximum MBM RIB Circuit Breaker RatingsMBM Model UPS Rating Continuous Current (Ir) Breaker SettingEaton 9395 275 kVA MBM225 kVA 350A D275 kVA 400A E300 kVA 400A EEaton 9395 550 kVA MBM450 kVA 700A Set dial half-waybetween A and B500 kVA 700A Set dial half-waybetween A and B550 kVA 800A B4.4 Initial StartupStartup and operational checks must be performed by an authorized Eaton CustomerService Engineer, or the warranty terms specified on page NO TAG become void. Thisservice is offered as part of the sales contract for the MBM. Contact an Eaton servicerepresentative in advance (usually a two-week notice is required) to reserve apreferred startup date.
