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Auto Transfer Relay System 30 Amp
Auto Transfer Relay System 30 Amp
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Auto Transfer Relay System 30 Amp

Part Number: 199938
Manufacturer Number: PD5110010V
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Auto Transfer Relay System 30 Amp

High/Low Voltage Protection: Whenever AC power falls below 104 Volt, or rises above 132 Volt, the EMS automatically shuts down power to the RV. The EMS will monitor the power and once the AC power rises above 104 Volt, or below the 132 Volt level, the time delay indicator flashes for the preset time and then automatically restores power to the RV. Time Delay for A/C Compressor: If the AC power is interrupted, or the EMS detects a fault condition, the built-in time delay is activated.

Automatically sense generator power and prevents shoreline and generator power entering the AC distribution panel at the same time and ruining your camping experience! Features include heavy duty relays that prevent contact damage during high current transfer operation, a time delay circuit board to ensure generator voltage is at the proper level before transfer occurs, a protective, snap-on cover with a wiring schematic mounted inside the cover.


  • Whenever AC Power Falls Below 104 Volt, Or Rises Above 132 Volt, The EMS Automatically Shuts Down Power To The RV
  • If The AC Power Is Interrupted, Or The EMS Detects A Fault Condition, The Built-In Time Delay Is Activated
  • 3-Mode Surge Protection: This Feature Provides Full Surge Protection
  • Features Surge Indicator, Reverse Polarity Protection, Open Neutral Protection, Open Ground Protection, AC Frequency Protection, Accidental 240 Volt Protection
  • Enclosed Blue Jumper Wire Allows The User To Bypass The Computer Circuit In The EMS In The Event Of Computer Failure, Thus Allowing AC Power Into The RV
  • Replacement Parts Are Designed For Simple Plug And Play, Making Repairs Extremely User Friendly
  • Microprocessor Controlled: The Computer Is Driven By A State-Of-The-Art Microprocessor That Is Programmed With Software To Drive The Entire EMS


Automatically Reconnects: Yes
Weight: 2.7500
Voltage Regulation: 120 Volt
Ampere Rating: 30 Amp
Used To: Protect From Damaging Low/ High Voltage Levels and Power Surges When Connected To AC Power Supply
With Fault Indicator: Yes
With Plug Head Handle: No

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