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P O W E R S E R I E S C O N T R O L L E R S
M i c ro p ro c e s s o r- B a s e d
SCR Power Contro l l e r
Designed fo r
Application Flex i b i l i t y
Watlow has manufactured solid state power controllers for
over thirty years. Watlow's POWER SERIES represents the
latest in SCR power controller technology. This microproces-
sor-based product offers features and application flexibility
unmatched by any other SCR power controller on the market
today.
Capabilities of Watlow's POWER SERIES controllers include
single-phase and three-phase models from 65 to 250 amps.
Field configurable phase angle or zero cross firing improves
application flexibility on site where you need it.The 50/60Hz
independent operation allows utilization almost everywhere
in the world without special calibration considerations. Serial
communication utilizing Modbus
control setup and monitoring of load status from a nearby
computer station or control room.
On-board semiconductor fusing improves reliability by
protecting the SCRs from heater short circuits. Plus,
on-board heater bakeout and control diagnostics can help
eliminate initial start up problems. All these benefits are in a
touch-safe package that can be quickly and easily mounted
in your control cabinet.
Watlow's POWER SERIES controllers are UL
recognized, so users can be assured that the controllers
meet world safety and operational standards.
UL
®
and C-UL
®
are registered trademarks of the Underwriter's Laboratories, Inc.
Modbus™ is a trademark of Schneider Automation Inc.
© 2003 Watlow Electric Manufacturing Company
™
protocol provides remote
®
®
and C-UL
Printed in the USA on Recycled Paper, 15% Postconsumer Waste
Features and Benefits
Microprocessor-based technology
•
Extremely versatile and field configurable
Snap-fit on a pre-mounted plate
•
Simplifies installation
Models 65 through 250 amp ratings
•
Handles a wide range of loads
Adjustable soft start
•
Provides application flexibility
Heater and control diagnostics capability
•
Monitors actual heater and controller performance
Electrically touch-safe package
•
Enhances safety for installer and users
Serial communications with Modbus
•
Provides computer control and/or monitoring
Multizone capability
•
Increases application flexibility and reduces panel space
1241 Bundy Boulevard
Winona, Minnesota 55987-5580 USA
Phone: 507-454-5300
Fax: 507-452-4507
Internet: www.watlow.com
e-mail: info@watlow.com
™
RTU protocol
WIN-PS-0403
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Summary of Contents for Watlow Power Series
- Page 1 Application Flex i b i l i t y Watlow has manufactured solid state power controllers for over thirty years. Watlow’s POWER SERIES represents the latest in SCR power controller technology. This microproces- sor-based product offers features and application flexibility unmatched by any other SCR power controller on the market today.
- Page 2 Specifications Power Bases • Single phase, (2 SCRs) • 3 phase, 2 leg control, (4 SCRs) Resistive load only, zero cross firing only • 3 phase, 3 leg control, (6 SCRs) • 3 phase, 3 leg control, (6 SCRs) for 4-wire wye loads •...
- Page 3 POWER SERIES Front View 354 mm (14.0 in.) POWER SERIES Top View 200 mm (7.9 in.) 191 mm (7.5 in.) POWER SERIES Features Mounting Holes (4) 7 mm (0.27 in.) Key Slots 102 mm (4.00 in.) 151 mm (5.93 in.)
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Page 4: Ordering Information
Three-Phase, Three Leg Configuration All POWER SERIES options are ava i l a ble with this c o n fig u ra t i o n . It wo rks well with phase angle firing into a t h r e e - p h a s e, three-wire wye or delta connected heater.