14A-2
SEPTEMBER 2007 HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI
U.S. Patents 6,207,919; 6,215,082;
6,281,460; 6,409,135; 6,459,053;
6,541,717; 6,818,846; 6,946,607.
Variations and Configurations
The Type AR switch is available in ve basic congura-
tions:
•Horizontal •Vertical
•Phase-over-Phase
•Delta •Inverted
All feature clockwise opening and are operable by torsional
or reciprocating controls as well a hookstick operation option
(full-length down-the-pole control or crossarm-mounted hook
stick-operation control).
1. Full-length down-the-pole controls consist of Torsional
swing-handle operation for Horizontal, Delta and Inverted
switches and Reciprocating pump-handle operation for Verti-
cal and Phase-over-Phase switches. (Standard Duty or Heavy
Duty conrols are available for Vertical and Phase-over-Phase
switches.) Switch open or close positions locking provisions
are provided.
2. Crossarm-mounted hook stick-operation controls
provide pull-to-open / pull-to-close switch with maximum
target hook stick accessibility.
Features:
All three phase switches feature a four-link overtoggle mecha-
nism to assure locked closed blades, mechanical advantage
for easier open and close operation, and "snap" feedback to
the operator.
Inverted Mounting
Type AR (Automation-Ready) Switch
14.4kV, 25kV or 34.5kV 900 Amperes Continuous/Interrupt
Horizontal Mounting
Type AR Switch Ratings
Nominal Voltage/Lightning Impulse Withstand .... 14.4 kV/110 kV, 25 kV/150 kV or 34.5 kV grounded-wye/150 kV
Continuous Current ................................................. 900 amperes
Interrupting Current ............................................... 900 amperes
Peak Withstand Current...........................................65,000 amperes peak
Short Time Withstand Current...........3 sec.............25,000 amperes, symmetrical
Fault Making: 1 time ................. ..........................25,000 amperes, asymmetrical
3 time ................. ..........................20,000 amperes, asymmetrical
Dead-ending: .............................................................8,000-lb. working load
Ice Breaking: ............................................................
3
/4-in. thick, opening and closing
Description
The Hubbell unitized Type AR switch is a distribution-level,
loadbreak, gang-operated side-break switch designed to
meet not only today’s needs but well into utilities’ future
of distribution automation. Designed for nominal system
voltages of 14.4kV and 25kV three- and four-wire systems
and 34.5kV grounded-wye systems. The Type AR switch is
available with a variety of options, and in ratings for present
and planned requirements.
To minimize eld installation time, the Type AR switch is
pre-assembled, adjusted and mounted on a crossarm. Instal-
lation time is even faster for a Type AR switch with the hook
stick-operation option.
Delta Mounting
Phase-
over-
Phase
Mounting
(Hook
stick control
shown)
(Torsional
down-the-pole control shown)
(Reciprocating
down-the-pole
control shown)
Vertical Mounting
(Hook stick control shown)
(Reciprocating
down-the-pole control shown)
(4 pages)
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