11
Vacuum interrupter/
operator
Introduction
The type 3AH vacuum circuit-breaker
operator is intended for application in a
drawout truck for use in medium-voltage
metal-clad switchgear and for stationary
applications, such as the type SDV6 outdoor
distribution circuit breaker. The type 3AH
circuit breaker conforms to the requirements
of ANSI/IEEE standards, including C37.20.2,
C37.04, C37.06, C37.09 and C37.010.
Figure 2: Vacuum circuit breaker operator module
Item Description Item Description
A Pole head L Guide link
B Upper connection pad M Upper post insulator
C Strut N Operator housing
D Vacuum interrupter O Lower post insulator
E Moving contact P Insulating coupler (48.0)
F Centering piece Q Contact pressure spring (49.0)
G Terminal clamp R Lever
H Flexible connector S Jack shaft
I Eye bolt T Pole plate
J Pole bottom (lower pole head) U Lower connector
K Angled lever V Vehicle frame
C
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K
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3AH vacuum circuit breaker operator 3AHc vacuum
circuit breaker
operator
T
N
P
Q
A
B
C
D
J
O
M
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