UL/cUL Listed

331 Standard NEMA 4X Duplex Control Panel

One panel for 208, 240, or 480V, 3 phase pumps
up to 32 amps each, in a stainless steel NEMA 4X
enclosure for an unbelievable price!

Features:
• Stainless steel, padlockable wall mount enclosure
• Single-point power connection
• Square D IEC HP rated motor starter with adjustable overload module
• 10HP max @ 208V; 10HP max @ 240V; 20HP max @ 480V
• Square D Class 10 ambient compensated overload relay
• Tamperproof window over overload can be field sealed once adjusted
• Overload reset accessible through the inner door
• Full inner door (deadfront)
• Square D tri-voltage step-down transformer (208V, 240V, or 480V)
• Transformer primary protector with manual on/off capabilities
• Separate alarm/control fuses
• Standard 4 float operation (off, lead start, lag start, high level)
• Override circuit (socket mounted) to operate lag pump if lead fails
• Solid state (socket mounted) alternator relay for even run time
• 22 mm pilot devices (inner door mounted) with engraved labels
• Square D run lights (22 mm, green, inner door mounted)
• Seal leak circuits for single or double probe pumps
• Square D seal leak lights (22 mm, red, inner door mounted)
• Square D alarm silence/test push button (22 mm, inner door mounted)
• Square D Hand-Off-Auto selector switches (22 mm, one per pump, inner door mounted)
• Alarm horn
• NEMA 4X rated “high level” flashing red alarm light (3”, 25W, top of panel mounted)
• Overtemp shutdown for motor winding temperature switches (auto reset)
• Ground bar (5 hole)
• Full size terminal blocks for connection of field wiring
• 16 AWG MTW control wire
• Wire duct for a clean inside appearance
• Numbered control wires to aid in troubleshooting
• Lag delay timing relay
• Elapsed time meter (two, one per pump)
• Three overload module sizes are available based on motor:
     - FLA: Module 05 for 1.25 to 5 FLA
     - FLA: Module 18 for 5 to 18 FLA
     - FLA: Module 32 for 18 to 32 FLA

Available Options:
• Modular pedestal with factory-installed cord grips
• Lightning arrestor

Control panels are completely factory-wired and tested. "Fit and Click" the appropriate overload module into the starter and you are off and running!

Product Literature
331 Panel Features (.pdf)
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