7
TM293 MEDC DB3BM UL Technical Manual
Sounder/Horn – dB3BM uL
TM293.A August 2022 www.eaton.com
DC input, dual stage ve with monitoring
(standard configuration) wiring details (Type 4)
Connect up to 4 supply wires to the terminals as detailed
in the wiring diagram. Stage 1 is produced when power
is applied across the ve and stage 1 -ve
terminals. Stage 2 is produced when power is applied
across the ve and stage 2 -ve terminals.
Monitoring functionality is obtained when the supply is
connected across M1 & M2 terminals.
ote:
N
monitored terminals are not polarity dependent
DC input, up to 3 stage with or without monitoring
(alternative configuration) wiring details (Type 5)
ote:
N
This alternative configuration must be specified
when ordering the unit.
This type can be connected either as a three stage
common –ve configuration, or if an optional EOL is
specified if can be configured as a dual stage common
–ve system with monitoring.
•
4-wire system (Triple stage, ve): Connect 4
supply wires to the terminals as detailed in the wiring
diagram (1 ve wire and 3 -ve wires). Stage 1
is produced when power is applied across the common
+ve and stage 1 -ve terminals. Stage 2 is produced
when power is applied across the ve and
stage 2 -ve terminals. Stage 3 is produced when power
is applied across the ve and stage
3 -ve terminals.
•
4-wire system (Dual stage, common –ve with
monitoring): Connect up to 4 supply wires to the
terminals as detailed in the wiring diagram. Stage 1 is
produced when power is applied across the common
-ve and stage 1 +ve terminals. Stage 2 is produced
when power is applied across the common -ve and
stage 2 +ve terminals.
Monitoring functionality is obtained when the supply is
connected across M1 & M2 terminals.
ote:
N
monitored terminals are not polarity dependent
