SPI Model SDC12B Duplex Control Panel (120/240V, 0-20FLA)

SDC12B Duplex Panel Specifications

• 120/240VAC, Single Phase, 0-20 FLA
• (3) Mechanical Floats w/ 15ft Cords
• 360 degree red alarm light, High decibel audible buzzer (100 dB)
• Automatic Alternating Relay
• Pump run light indicator
• Pump Hand/Off/Auto heavy duty toggle
• Alarm On/Test/Mute heavy duty toggle
• Field wiring terminal strips
• Two 2-pole definite purpose contactors (100,000 cycle rating) 
• 25 amp motor circuit breakers for each pump
• 10 amp control / alarm circuit breaker
  
• Color Coded Wiring
• Dimensions: 12.25'' W x 14.63'' T x 7.25'' D
• NEMA 4X Enclosure, UL 508A Listed
• Two Year Limited Warranty

SDC12B Duplex Panel Features

The SPI Model SDC12B is a robust solution for managing duplex pump stations, providing redundancy and efficiency for residential, commercial, or community septic systems. Its advanced design ensures uninterrupted wastewater flow, even during pump maintenance or failure. Key features include:

• Dual Pump Control: Manages two submersible pumps with automatic alternation, balancing wear and extending equipment life.
• High Water Alarm: Includes a built-in alarm with a visible light and audible alert to signal high water levels, preventing overflows.
• Mechanical Float Switches: Equipped with three switches ("OFF", "LEAD ON", and "ALARM") for precise pump activation and monitoring. A fourth float switch can be added for "LAG ON" functionality.
• Durable Construction: Housed in a weatherproof NEMA 4X enclosure, suitable for indoor or outdoor installation.
• Easy Installation: Pre-wired with a control circuit breaker, simplifying setup for professionals and DIY users.
• Versatile Voltage: Operates on 120/240 VAC, accommodating a wide range of pump configurations.

Dual Voltage Panel

This panel is dual voltage and can operate pumps at 120V or 230V power. The incoming power supply must match the voltage requirements of your submersible pumps! NOTE: For 230V operation, the panel still requires a Neutral wire due to the control side of the panel operating off of 120V. 

• 120V Incoming Power - Hot wire to L1, Neutral to L2, Jumper wire from L2 to N
• 230V Incoming Power - Must supply Hot, Hot, Neutral, Ground to the panel - Hot wire to L1, Hot wire to L2, Neutral to N

Duplex Panel Float Switch Configurations

This panel is included with (3) mechanical floats and a fourth float can be added for further functionality. These are the input float switch functions that this panel offers along with their definitions:

• Off Level (Terminals 1 & 2) - This is the master off level that will shut off either or both pumps when this float switch is in the open position.
• Lead On Level (Terminals 3 & 4) - This is the on level for the lead pump which is automatically selected by the alternating relay in the panel.
• Lag On Level (Terminals 5 & 6) - This is the on level for the opposite pump not currently selected by the alternating relay. This function is used to run both pumps during high demand.
• Alarm Level (Terminals 7 & 8) - This is the trigger for the high level alarm in the panel.

Here are the possible float switch configurations that can be used with this duplex control panel:

• (3) Floats (No Lag On Functionality): 1. Pump Off, 2. Lead Pump On, 3. High Water Alarm
  • Off Level Float: Terminals 1 & 2
  • Lead On Level Float: Terminals 3 & 4
  • Alarm Level Float: Terminals 7 & 8
• (3) Floats (with Lag On Functionality): 1. Lead Pump On & Off, 2. Lag Pump On, 3. High Water Alarm
  • Off / Lead On Level Float: Terminals 1 & 2
  • Jumper Wire Across Terminals 3 & 4
  • Lag On Level Float: Terminals 5 & 6
  • Alarm Level Float: Terminals 7 & 8
• (4) Floats (with Lag On Functionality): 1. Pump Off, 2. Lead Pump On, 3. Lag Pump On, 4. High Water Alarm
  • Off Level Float: Terminals 1 & 2
  • Lead On Level Float: Terminals 3 & 4
  • Lag On Level Float: Terminals 5 & 6
  • Alarm Level Float: Terminals 7 & 8

SDC12B Duplex Panel Applications

Duplex control panels like the SDC12B are essential for systems requiring high reliability. The dual-pump setup provides redundancy, ensuring wastewater continues to flow if one pump fails or requires maintenance. The alternating relay switches between pumps with each cycle, promoting even wear and reducing downtime. The high water alarm alerts you to potential issues, allowing timely intervention to avoid costly damage or environmental hazards.

• Works in Both Outdoor and Indoor Applications
• Controlling A Dual Submersible Pump Station
• Automatic Alternating Relay Alternates Pump Cycles
• Monitoring Liquid Levels
• Sump and Sewage Basins
  
• Alerts of Submersible Pump Failure
• Includes 3 Mechanical Float Switches
  
• Includes Lead ON and Lag ON Functionality

WHY SHOP WITH SEPTIC SOLUTIONS?

• Genuine OEM Products: We partner with SPI to provide factory-certified panels, ensuring quality over aftermarket alternatives.
• Expert Support: Our team, with over 100 years of combined wastewater expertise, is available to assist with installation or troubleshooting. Call 1-877-925-5132 or email sales@septicsolutions.com.
• Fast, Free Shipping: Orders placed by 2 PM CST ship the same day with free 2-3 day delivery.
• Extensive Inventory: Over 1,500 septic products in stock, including pumps, panels, and parts, ready to meet your needs.
• Trusted Since 1989: A family-owned business committed to quality and customer satisfaction, backed by over 20,000 4+ star reviews across the web.