The QPAC modular controller from Watlow 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 configurations.
A variety of transformers from 120 to 575VAC, along with 50/60Hz operation, enable the QPAC modular controller 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 and are available with a wide variety of options. High speed fuses are included to protect the SCR modular controller from short circuit currents. 200KA short circuit current rating (SCCR) prevents arc flash.
Mounting: | Back Panel |
Max Output: | 1000A |
Output Firing: | Zero Cross, Phase Angle |
Phase Configuration: | 1 or 3 |
Ambient Operating Range: | 0 to 50°C (32 to 122°F) |
Agency Approvals: | UL®, C-UL®, SCCR |
Dimensions: | 13 in. (330 mm) H x 6.9 in. (175 mm) W x 10.25 in. (260 mm) D |
Warranty (years): | 3 |
Features | Benefits |
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200KA short circuit current rating (SCCR) |
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Modular power controller |
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Available in 150 to 1000 ampere ratings |
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Available in solid state contactor, burst firing (zero cross) or phase-angle fired mode |
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Rugged design for 122°F (50°C) ambient operation |
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Semiconductor fuses and snubber protection included |
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Open heater or shorted SCR detector option |
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UL® 508 listed and C-UL® up to 1000 amperes |
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