Vacuum Interrupter/Operator - Siemens 3AH3 Instruction Manual

Vacuum interrupter/
operator
Figure 2: Vacuum circuit breaker operator module
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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.
3AH vacuum circuit breaker operator
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Item
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Description
Pole head
Upper connection pad
Strut
Vacuum interrupter
Moving contact
Centering piece
Terminal clamp
Flexible connector
Eye bolt
Pole bottom (lower pole head)
Angled lever
3AHc vacuum
circuit breaker
operator
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Q
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K
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Item Description
L Guide link
M Upper post insulator
N Operator housing
O Lower post insulator
P Insulating coupler (48.0)
Q Contact pressure spring (49.0)
R Lever
S Jack shaft
T Pole plate
U Lower connector
V Vehicle frame
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R
S
V
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