General description
The equipment furnished has been
designed to operate in a system having the
circuit capacity specified by the purchaser.
If for any reason the equipment is used in
a different system or if the short-circuit
capacity of the system is increased, the
ratings of the equipment, including the
momentary rating and the interrupting
capacity of the type SDV6 distribution
circuit breaker must be checked. Failure on
the part of the user to receive approval of
intended changes from Siemens may
cause the warranty to be void.
This instruction manual applies to the type
SDV6 distribution circuit breaker enclosure
structure. Refer to instruction manual
E50001-F710-A251-X-76US for
instructions applicable to the type 3AH
circuit breaker operator.
General description
The distribution circuit breaker described
in this instruction manual is of the ac high-
voltage outdoor circuit breaker type, as
defined in ANSI/IEEE C37 and NEMA SG4
standards. All high-voltage parts excluding
roof bushings are completely enclosed
within grounded barriers. The secondary
control devices and primary circuits are
isolated from each other by barriers.
Siemens type SDV6 distribution circuit
breaker carries a type designation, as
shown in Table 1: Type SDV6 distribution
circuit breaker designation. This
designation may appear on drawings and
familiarity with them will simplify
communications with the factory.
Design
Type
Bolted cabinet
SDV6
Table 1: Type SDV6 distribution circuit breaker
designation
7
