Pump Connection at Pump Disconnect Panel, within In-ground Junction Box or at Control Panel
Connection of the pumps to the control panel must be done according to the National Electrical Code (NEC). Romtec Utilities provides several ways for the pumps to be connected to the control panel: 1) through Romtec’s pump disconnect panel; 2) through the in-ground junction box; or 3) into an area of the control panel designed for this purpose.
Pump Disconnect Panel – Romtec Utilities offers the pump disconnect panel with its stainless steel stand so the pumps can be safely connected and disconnected using special plugs. The panel and stand are located at or near the wet well, but are outside the NEC’s Class 1, Division 1 hazardous area. The panel includes the intrinsically safe barrier required by code. In addition, the pump cords are connected with the Meltric DSN Decontactor that is rated as a manual motor controller, as well as plug-in and receptacle. This connector provides a safe and easy method for connecting pumps. The pump disconnect panel stand fastens to the wet well top adjacent to the cable chase and hatch. This provides the most convenient and secure means for routing the pump cords and sensor wires from the wet well.
In-ground Junction Box – The pump cords and sensor wires can be routed through conduits from the wet well to an in-ground junction box located alongside the wet well. This provides a means of connection that includes all required seal offs and an explosion-proof environment for the pump cord junctions and sensor wire terminals inside a pre-cast concrete enclosure with a heavy-duty steel hatch.
Control Panel – In rare instances it is preferable to run the pump cords through conduits directly to the control panel. This would require the control panel to be near the wet well. Additional required equipment within the control panel enclosure includes the intrinsically safe barriers and the junction and terminal circuitry for the pump cords and sensor wires. Conduits must also be fitted with the proper seal-offs to meet electrical code requirements.