Watlow QPAC Series SCR Power Controller

Modular silicon controlled rectifier (SCR) power controller with plug-in features for flexibility, available in 150 to 1000 ampere ratings.

Retired products cannot be ordered

The Watlow ASPYRE Power Controllers is the suggested replacement.

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Manufactured

By Watlow
Made in the USA

Includes

FREE Ground Shipping
FREE Lifetime Tech Support

Product Manual Product Specs

Features

200KA short circuit current rating (SCCR)
Modular power controller
1-phase, 3-phase (2-leg), or 3-phase (3-pair) options
Available in 150 to 1000A rating
Rugged design for 122°F (50°C) ambient operation
Solid state contactor, burst firing or phase-angle fired mode
Vertical mount
Diagnostic capabilities
UL 508 listed and C-UL up to 1000A

The Watlow QPAC Series SCR Power Controller is a modular Silicon Controlled Rectifier (SCR) power controller with plug-in features for flexibility. Bases are rated from 150 to 1000 amperes in one-phase, three-phase, two leg and three-phase, three leg.

A variety of transformers from 120 to 575VAC along with 50/60Hz operation enable the QPAC to operate in applications anywhere. Plug-in control cards set the QPAC's SCR firing modes; solid state contactor, burst firing (zero cross) or phase-angle models are available with a wide variety of options. This power controller includes 200KA short circuit current rating (SCCR) and high speed fuses to minimize damage in the event of a short circuit.

Applications for hte QPAC Series include: