Citadel 2.0 - Instruction Manual - page:
51
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Auxiliary switch (52a/b)
The Citadel circuit breaker has a multi contact auxiliary switch within its mechanism
(see figure 25). This switch provides numerous auxiliary contacts for internal circuit
breaker control use during closing and opening. Spare contacts are standard and
optionally available for Customer use as desired. The Auxiliary switch is driven by
linkage that connects to and is moved by the Main Armature shaft.
The auxiliary switch contains both normally closed (“b” contacts) and normally open
(“a” contacts). “a” contacts follow the main breaker’s primary contacts – i.e. when the
circuit breaker is open, the “a” contacts are open and the “b” contacts are closed.
Auxiliary Switch Parameters
Product name
Auxiliary Switch (10 NO +10NC)
Type
F10-20
Rated voltage
250 VAC/DC
Power freq. withstand 1 min
2000 V
Continuous current
10 amps
DC Breaking capacity
2A @ 220V,
4A @ 110V,
10A @ 48V,
FIGURE 25
TABLE 11
Electrical life
20,000 operations
Mechanical life
30,000 operations
TABLE 12 - AUXILIARY SWITCH LIFE
C I T A D E L C O N T R O L S