MBM INSTALLATION
Eaton 9395 Maintenance Bypass Module Installation and Operation Manual
S
164201719 Rev 3
www.eaton.com/powerquality
4-16
Table 4‐1. TB1 and TB2 Interface Connections
Terminal TB1
Name
Description
1
MBP Aux #2 NC
2
MBP Aux #2 Common
Output: Normally open (NO) contact used to indicate whether the MBM MBP is closed
and the UPS system is on maintenance bypass.
3
MBP Aux #2 NO
4
MIS Aux #2 NC
Output: Normally closed (NC) and normally-open (NO) contacts used to indicate whether
the MBM MIS is closed.
5
MIS Aux #2 Common
6
Mis Aux #2 NO
7
Not Used
8
Not Used
9
K3 NC Aux
Output: Normally‐closed contact opens when the output contactor closes. Used to
indicate when the UPS is on bypass.
10
K3 Aux Common
Terminal TB2
(Optional)
Name
Description
1
RIB Aux #2 NC
Output: Normally closed (NC) and normally-open (NO) contacts can be used to indicate
whether the MBM RIB is closed.
2
RIB Aux #2 Common
3
RIB Aux #2 NO
4
BIB Aux #2 NC
Output: Normally closed (NC) and normally-open (NO) contacts can be used to indicate
whether the MBM BIB is closed.
5
BIB Aux #2 Common
6
BIB Aux #2 NO
7
Not Used
8
Not Used
9
Not Used
10
Not Used
NOTE “Common” indicates connection to common side of isolated relay contact.
