66
Instruction Booklet
IB 33-790-1J
Effective November 2010
Instructions for Low Voltage Power
Circuit Breakers Types DS and DSL
EaToN CorPoraTIoN www.eaton.com
Fig. 72 Latch Check Switch.
Since this is a solid-state device, no maintenance will be
required; and the same cautions apply as previously
stated for the Amptector trip unit. Warranty will be void if
there is any evidence of tampering.
8.7.4 Latch Check Switch
The Latch Check Switch consists of a switch mounted on
the inside at the left hand side sheet of the circuit
breaker. The switch is located so that when the breaker
trip shaft is in the “reset” position a normally closed con-
tact of the switch is closed (see Figures 72 and 73). When
this switch is supplied, the contact is usually connected in
the closing circuit of the circuit breaker to insure that the
tripping system is reset before the circuit can be ener-
gized to close the breaker.
Fig. 73 Latch Check Switch Operation.
8.7.5 Auxiliary Switches
As shown in Figure 65, there may be from one to three
auxiliary switches located to the right of the Amptector
trip unit. Each switch has four contacts, which may be
either normally open or normally closed. See Figure 74
for construction. Auxiliary switch contacts are rated 10
amperes at 120/240 volts AC, 10 amperes at 125 volts
DC, and 2 amperes at 250 volts DC.
Fig. 74 Auxiliary Switch Construction Details (PRE-1989).