MEI 1252A 12V SPDT Relay 5-Terminal 30-50 Amp with Diode

The MEI 1252A is a heavy-duty 12-volt SPDT (Single Pole Double Throw) relay designed for multi-fit applications in truck air conditioning systems and heavy-duty equipment. This square-style relay features integrated diode protection to safeguard sensitive electronic components from voltage spikes and current backflow.

Key Features:

• 12V operating voltage with 30-50 amp capacity
• 5-terminal blade connector configuration
• Built-in diode protection for enhanced circuit safety
• SPDT switching design for versatile circuit control
• Square compact housing for easy mounting
• Heavy-duty construction for demanding commercial applications

This relay is commonly used in Class 6, 7, and 8 truck HVAC systems, as well as agricultural, mining, and forestry equipment. The integrated diode ensures proper current flow direction while preventing voltage spikes that can damage electrical components. Cross-references Navistar OEM 3607384-C1 and multiple other manufacturer part numbers.