The Red Dot 71R1912 Relay Switch is a high-current SPDT (Single Pole Double Throw) relay with integrated coil suppression, designed for 12-volt HVAC and electrical systems where voltage spike protection and reliable switching are critical. Rated at 50 amps (open) and 30 amps (closed), this relay is commonly used on Red Dot R-9765 and R-9723 units.
Its 5-terminal configuration with standard 1/4″ male blade terminals allows straightforward integration into existing wiring harnesses. The built-in coil suppression helps protect sensitive components by reducing electrical noise and back-EMF during switching.
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Part Type: Relay Switch (with Coil Suppression)
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Red Dot Part No.: 71R1912
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Red Dot Factory Part No.: RD-5-7232-0P
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Application: Red Dot R-9765 and R-9723 models
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Voltage Rating: 12V
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Pole: SPDT (Single Pole Double Throw)
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Current Rating: 50/30 Amp
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Contact Rating: Open 50A / Closed 30A @ 12V
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Terminal Count: 5
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Terminal Type: 1/4″ Male Blade
Dimensions
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Base Length: 1-13/32″
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Base Width: 1-13/32″
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Overall Length: 2-5/8″
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Blade Length: 1/2″
Features & Benefits
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Integrated coil suppression to reduce voltage spikes
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High-current capacity for demanding HVAC circuits
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SPDT design for flexible control logic
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Standard blade terminals for easy harness compatibility
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Designed specifically for Red Dot HVAC unit applications
Cross Reference Numbers
Texas Truck A/C: 850-7760
AirSource / MEI: 1263
CoolStar / MEI: 940-1305
Everco HD: 935129
Freightliner: 680-545-00-05
NDNS: 6805450005
Primatech: PTAC1263
Red Dot (Aftermarket): 71R1912
Red Dot (Factory): RD-5-7232-0
Truck Air / MEI: 44870
TruckAC+: T5305
TTA/C: 13-4509
Interchange Numbers
1263, 232-8414, 4379-RD572320, 4379-RD572320P, 71R1912, 850-7760, 940-1305, ABP N83 320155, RDHRD572320P, RDT71R1912, SWI5805
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