Controllers/Variable Frequency Drives

STH can provide detailed Controller specifications, application engineering, project budgets and training to owners and engineers for your specific controller application.

Our control specialists can help you every step of the way with your control panel needs. From simplex effluent pump panels and fire pump controls to highly sophisticated municipal pumping systems we have the industry knowledge and experience to meet your control panel requirements.

FIRE PUMP CONTROLLERS

Ask about our large selection of fire pump controllers and transfer switches to handle all your fire controller needs.

JOCKEY PUMP CONTROLLERS

Intended for use with fire pump systems. They are used for pressure maintenance in fire pump installations to prevent unnecessary cycling of the main fire pump.

ELECTRIC FIRE PUMP CONTROLLERS

Factory assembled, wired, tested as a unit and UL listed, FM Approved, completely conforming to the latest edition of NFPA-20, Installation of Stationary Pumps for Fire Protection and NFPA-70 (National Electrical Code).

DIESEL ENGINE FIRE PUMP

Intended for starting and monitoring fire pump diesel engines. They are available for use with 12 or 24 volt negative ground systems using lead acid or nickel-cadmium batteries. The controller monitors, displays and records fire pump system information.

POWER TRANSFER SWITCHES

Factory assembled, wired, tested and shipped as a complete unit for easy field connection to the power sources and the fire pump motor.

COMMERCIAL DOMESTIC WATER BOOSTER CONTROLLERS

Ask about our energy saving VFD booster Conversion Packages and corresponding payback/energy savings analysis.
Download – SyncroFlo/Mitsubishi VFD Booster Controller Brochure
Download – Yaskawa IQ Pump VFD Controller Brochure

COMMERCIAL SUMP & SEWAGE CONTROLLERS

Ask about our 3 phase-3 volt in 1 panel for your commercial sump & sewage controller applications.
Download STH 3-in-1 Control Panel Brochure

MUNICIPAL SUMP & SEWER CONTROLLERS

Revolutionary in design, the ECO SMART STATION™ control panel provides a safe, simple, energy efficient solution for optimum pump control in municipal lift station applications. The ECO SMART STATION™ uses the latest technology in VFD, microprocessor based controller, data storage and communication capabilities available. This pre-engineered solution is available in 29 models, from 10HP to 100HP. Ask us about the ECO SMART STATION™ Control Panel.

The ECO SMART STATION™ is housed in the innovative, multiple compartment ARC ARMOR™ Enclosure, reducing the risk of injury resulting from electric shock and exposure to arc flash. The control and power circuitry are isolated in separate compartments, preventing unnecessary operator exposure to high energy circuits and potential arc flash conditions.

CONTACT US

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Contact our Controls Specialist:
Mark Smullen
T: 301-682-3390 Ext. 110
E: mark.smullen@sthinc.com

Contact our Fire Pump Specialist:
Mark Barrick
T: 301-682-3390 Ext. 116
E: mark.barrick@sthinc.com