DAIRYLAND ELECTRICAL INDUSTRIES

Since 1983, Dairyland Electrical Industries has engineered robust electronic solutions that ensure electrical safety, system reliability, and corrosion protection across critical infrastructures. As the inventor of solid-state decouplers and hybrid surge protectors, Dairyland sets the global benchmark for energy, oil & gas, transportation, and marine industries.

Core products & solutions

• Solid-State decouplers (PCR, SSD, PCRX, PCRH, ISP):
  Provide DC isolation with AC grounding continuity in a fail-safe design. Certified UL, CE, ATEX, IECEx, UKEx.
• Solid-State surge protectors (OVP, OVP2):
  Explosion-proof devices for Class I, Div. 1 & 2 hazardous areas, built to handle lightning and AC fault events.

Specialized equipment

• Overwatch HEFPD: Railway-grade fault protection for signal and crossing systems.
• UltraBox™: Modular junction boxes for cathodic protection systems.
• GCM: Gradient Control Mats ensuring operator safety near energized pipelines.
• Galvanic & neutral isolators: Marine and agricultural solutions to eliminate stray voltage.

Industries served

• Oil & gas: AC mitigation and cathodic protection for pipelines and tanks.
• Power transmission & distribution: Neutral and cable shield isolation for safer networks.
• Fuel infrastructure & airports: Lightning protection for jet fuel systems and terminals.
• Rail & transportation: Surge and fault protection for railway signaling equipment.
• Marine & boating: Galvanic corrosion prevention for vessels and marinas.
• Agriculture: Stray-voltage isolation in livestock and rural electrical systems.

Why choose Dairyland?

• Technology pioneer: Inventor of the solid-state PCR and the industry term “decoupler.”
• Patented innovation: Multiple U.S. patents including US 5,436,786, US 5,751,530 & US 5,856,904.
• Global certifications: UL, CE, ATEX, IECEx, UKEx, ABYC A-28 & ISO 9001 Quality System.
• Fail-Safe engineering: Ensures continuous grounding even under internal failure.
• Proven longevity: Field units still operational after 40 years of continuous service.

Our process

1. System analysis – Identify electrical, corrosion, or grounding issues.
2. Product selection – Define ratings and certifications per site conditions.
3. Integration – Install with compliance to UL, ATEX, IEEE, and NACE standards.
4. Technical support – Documentation and on-site engineering guidance.
5. Long-Term reliability – Maintenance-free operation and continuous monitoring.

Connect with Dairyland and protect your critical infrastructure with the most secure technology on the market.