Rockwell Automation 802T-G Low Energy Limit Switch Product Profile - Manual

Design
Allen-Bradley 802T Low Energy Limit
Switches from Rockwell Automation
are intended for direct connection to
PLCs and other low energy circuits.
Designed with welded gold and
silver alloy contacts to provide a
protective barrier against surface
oxides, the components and design
of these low energy limit switches are
optimized for reliability and long life.
A stationary waffle shape contact
optimizes contact pressure to
stabilize the contact resistance in
the region of the micro load, while
a prism-shaped crossbar contact
provides high pressure to penetrate
foreign particles that could prevent
contact closure. Allen-Bradley low
energy limit switches are suitable
for machine connectivity and low
voltage facilities, featuring a low
input voltage of 5-28V DC with
contact ratings of 0.025 VA (min.)
and 0.40 VA (max.) per pole.
Style Options
Bulletin 802T Low Energy Limit
Switches are ideal for applications in
which heavy duty pilot ratings, a high
degree of versatility and a rugged
NEMA Type 4, 13 and 6P rating are
required. Similar to our full line of
standard 802T Plug-In Style Limit
Switches, Allen-Bradley Low Energy
Limit Switches are available in Lever
Type Spring Return and Push Type
Spring Return operating styles.
Operating heads can also be
mounted in four positions, 90° apart,
for optimal application flexibility.
Features
• Welded gold and silver alloy
contacts provide a barrier against
surface oxides
• Stationary Waffle Shape contact
reduces the impact of
contamination build-up
• Prism shaped crossbar contact
provides high pressure to
penetrate foreign particles which
could prevent contact closure
• Snap acting spanner replicates
same reliability performance of our
legacy NEMA products
• Lever Type and Push Type
operating styles.
• Plug-in Style for ease of wiring.
• Conduit and Mini-Receptacle
wiring options
• Enclosure Rating NEMA 4,
13 and 6P.
• cULus listed and CE marked
for applicable directives.
• 5-28 V DC and
0.025 VA min and
0.40 VA max load per pole
applicable directives
Benefits
• Able to connect directly
to PLC input
• Components and design are
optimized to provide long life for
low energy use.
• Provides an alternative to glass
enclosed reed switches or solid
state devices.
• An economical alternative to
oversized power contacts.
• Suitable for machine connectivity
and low voltage circuits.
Low Energy Limit Switches
Improved capability for low voltage circuits
In today’s age of low energy controls, electromechanical
switches are more frequently interfacing directly with low
energy circuits. But switching low energy loads presents a
unique challenge, and the primary concern of low energy
switching is contact contamination. Since low energy loads
do not arc or burn the contacts clean, contaminants may
cause erratic switch behavior. With the introduction of new
Allen-Bradley 802T low energy limit switches, Rockwell
Automation now offers a rugged, reliable solution for your
low energy switching needs.