The Guardian Series™ single-phase controller takes a major leap forward in fixed speed Submersible Turbine Pump (STP) control. Built upon the solid FE PETRO® brand smart controller platform, Guardian Series™ controllers feature an enhanced user interface, greater functionality, and higher performance compared to standard control boxes.

Effective immediately, the STP-SCI is no longer available. The new SPGC-220 Guardian Series™  single-phase controller is a direct replacement for the STP-SCI  – retaining the same fit, form, and function of the STP-SCI with additional new features. Replacement parts for the STP-SCI will  remain available until further notice.

NEW GUARDIAN SERIES™ FEATURES

LCD Display
A 3½” digit LCD display provides readable running and fault status for improved troubleshooting.

Reliability
Updated surge protection and pump relay circuitry improves the controller’s ability to handle challenging incoming power.

Communication
Updated RS-485 communication provides seamless manifolded pump and Turbine Pump Interface operation.

User Interface
Separate Reset and Silence/Calibrate push buttons provide clear interaction with the controller.

Protection
Over voltage protection and enhanced underload detection better protects pumping system equipment.

SAME FIT, FORM, & FUNCTION

Option Switches
Maintains the option switch settings.

• SW1 and SW2 rotated from the top of the lower board to the right side of the upper board.
• Upper board is now control / user interface,
  lower board is now power / relay board.
  

User Interface
All user inputs moved to front panel.

• Individual Reset and Silence/Calibrate function buttons.
• New 3 ½" digit LCD replaces red and green lights.
• Same yellow communication light.
• Readable output conditions listed on the front panel.

Field Connections
Maintains the same field connections.

• Similar hook signal input location.
• Line and motor connection positioned at the bottom of the enclosure.
• RS-485 connection moved from left to right side of enclosure.
• Wiring diagram and switch settings located inside of the front panel.

Enclosure
Maintains the basic enclosure.

• Same size and wall space required.
• Same mounting method.
• Same electrical knockout positions.