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3337 Brochure

Options & Accessories

Options Potentiometer Kit

3337 Three Phase Zero Cross Power Controller

Status: 
Actively Shipping - Not recommended for new designs
Alternative: 
MicroFUSION Three Phase
Phases: 
Three phase
Firing mode: 
Zero cross
Output: 
AC
Amp Sizes: 
200, 240, 280, 320, 500, 600, 750
Voltage: 
208, 240, 277, 380, 415, 480, 575*
Control: 
Analog
Feedback type: 
Voltage
Features: 
  • Six SCR
  • Line voltage compensation holds load voltage constant with changes in line voltage
  • Sync-Guard™ smoothes out line current draw when multiple controllers are in use.
  • Trans-Guard™ decreases the possibility of DC building up on the supply transformer.
  • Thermostatically protected.
  • On-board line fusing for 200-320 amp frames. (No need to fuse twice!)
  • Compact and economical
  • Fast cycling distributive control improves heater life and reduces temperature variations.
  • 2500 Vac RMS isolation between input/output and line voltage/heatsink.
  • Convection and forced air cooled.

Command Signal:

4-20 mA, 0-5 VDC, 0-10 VDC, or Potentiometer*

 

Applications:

Electric ovens, furnaces and kilns. An excellent contactor replacement and may be used in all resistive heating applications.

 

* Other special options are available; contact the factory for more information.

Alarms: 
Shorted SCR
Agency approvals: 
UL
cUL/CSA