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209/219/229/249/279 Series
Hydraulic Magnetic Circuit Protectors
INTRODUCTION
The 209, E-Frame circuit breaker combines power switching with
accurate, reliable circuit protection in a compact single or multi-
pole unit. The unit is ideal for branch circuit applications such as
EDP, air conditioners, panel boards and lighting controls.
The 209 is actually a family of circuit breakers available in one
through six pole assemblies with a variety of configurations
and terminal styles to meet your application needs. First in this
family is the 209, a general purpose E-Frame circuit breaker
which complies with UL Standard 489. Other members of the
family include the 219, for manual controller applications,
which complies to UL Standard 508, the 229, for supplementary
protectors applications, which complies to UL Standard 1077,
and the 299, a Special Construction version.
Utilizing the hydraulic-magnetic principle, the 209 family adapts
itself to local applications and environments. Temperature
conditions, which affect fuses and other thermal devices, are
not a concern. The magnetic /ampere turn principle minimizes
nuisance tripping due to temperature variations.
Inrush currents, due to ferroresonant transformers, lamps
and capacitive filters, are now becoming more significant.
Recognizing the need for this type of protection, Airpax offers the
unique inertial delay which is standard for all 50/60Hz time delay
units, but may be deleted where inrush is not a problem. No extra
cost or special order is required.
The 209 family of circuit breakers withstands high pulses
without tripping or affecting normal delay curves. This
performance, however, does not derate or sacrifice protection.
173
209 Series - Introduction
http://airpax.sensata.com
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