331 Control Panel
3 Phase, 3 Voltages, 1 Panel
The 331 Control Panel is designed for three phase duplex pump applications (three voltages 208/240/480 VAC, one panel). The panel utilizes the robust DPC-4F controller which provides the pump control ON & OFF sequence, pump alternation selection, lag pump delay time, and highwater alarm and float out-of-sequence alarm conditions. Models available with intrinsically safe relay for circuit extension into hazardous locations.
Features
- Padlockable wall mount NEMA 4X enclosure (stainless steel or fiberglass)
- Single-point power connection (NE models include an additional 120V power connection for the alarm circuit)
- IEC HP rated motor starter with adjustable overload module
- 10HP max @ 208V; 240V
- 20HP max @ 480V
- Class 10 ambient compensated overload relay
- Pump short circuit disconnect and overload reset accessible through the inner door
- Tri-voltage step-down control transformer
- Separate alarm/control fuses (NE models include separate breaker for circuit protection)
- Override circuit to operate lag pump if lead fails
- Alternator relay for even run time
- 22mm pilot devices with engraved labels
- Seal leak circuits for single or double probe pumps
- Red flashing alarm beacon and audible horn (NE models include an amber beacon)
- Pump run lights
- Seal leak lights
- Alarm silence/test push button
- Hand-Off-Auto selector switches
- Auxiliary contact
- Overtemp shutdown for motor winding temperature switches (auto reset)
- 16 AWG MTW control wire
- Color coded control wires to aid in troubleshooting
- Lag delay timing relay
- Elapsed time meters
- Standard 4 float operation (off, lead start, lag start, high level)
- Waterproof electrical schematic affixed to the door
- Document pocket for all component information
OPTIONS (customer installed)
- Secondary surge arrestor with mounting bracket
- Pedestal (painted steel, stainless steel, and aluminum)
Specifications
MODELS
- 331SS Stainless Steel Wall Mount NEMA 4X Enclosure
- 331FG Fiberglass Wall Mount NEMA 4X Enclosure
- 331SS-NE Stainless Steel Wall Mount NEMA 4X Enclosure, Amber Beacon, Alarm Breaker
- 331FG-NE Fiberglass Wall Mount NEMA 4X Enclosure, Amber Beacon, Alarm Breaker
OVERLOAD MODULES*
- 1033805 1.25 – 5.0 FLA
- 1023500 4.5 – 18.0 FLA
- 1033806 8.0 – 32.0 FLA
*Overload Modules sold separately; based on motor.