Model PF3 SCR Power Control (650A)
PF3, Three Phase, Phase Angle Control, 650A for Resistive, Transformer and Inductive Loads
PF3 SCR Power Controls, Phase Angle (Three Phase, 650 Amps)
PF3 series SCR power controls are three phase, phase angle fired SCR power controls designed to deliver maximum power control with very high reliability. Phase angle fired units delay the turn on point in each half cycle of the sine waves for precise power control. This model can be used with resistive, inductive and transformer coupled loads. When the optional current limiting is utilized this model can be used with heaters that have a significant change in resistance during heat up. Other common applications for this model include IR heating and vibratory feeders.
General:
AC Voltage Input
AC Voltage Output
Recommended For RESISTIVE, INDUCTIVE & TRANSFORMER Loads
Phase Angle Fired
Can Be Used with Infra-Red Heaters and to control Vibratory Feeders
Suitable for 3 Phase 3 or 4 Wire Systems
Delivery:
Specifications:
Load Type: | Resistive, Inductive and Transformer Loads |
Control Method: | Phase Angle Firing of back to back SCRs |
Voltage Ratings: | Models available for up to 600VAC |
Current Ratings: | 650 Amps |
Command Signals: | Most standard process signals are supported |
Isolation: | 2500V RMS from power circuit to command signal and ground |
Bias and Gain Adjustments: | Multi-turn |
Ambient Temperature Range: | 0-50 Degrees C Operating, 0-70 Degrees C Storage |
Relative Humidity: | 0-95% Non-condensing |
Agency Approvals: | UL, cUL Listed, CE Compliant |
Warranty: | 5 Years |
Dimensions:

Additional Information
Click Here to Download Product Manual
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Voltage(120) 120 VAC, (240) 208 or 240 VAC, (400) 400 VAC, (480) 480 VAC, (575) 575 VAC
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Current Rating(650) 650 Amps, (650-LG) 650 Amps with Line and Load Lugs
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Thermostat Option(NO) N.O. Thermostat, (NC) N.C. Thermostat
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OptionsNone, (CL) Current Limit and Over Current Trip, (OC) Over Current Trip, (PR) RMS Power Regulation
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SCR Failure AlarmNone, (SF) Include SCR Failure Alarm
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Load Unbalance AlarmNone, (UB) Include Load Unbalance Alarm
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Command Signal Input(01) 4-20mA, (02) 0-10 VDC, (03) 0-5 VDC, (05) Manual Pot Input (Requires 5K Pot)
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ManufacturerAmetek HDR
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Made In USANo
- Agency Listing
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ULYes
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cULYes
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CEYes
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