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Aprilaire 50 current sensing relay 24V induction compact unit

Aprilaire

Aprilaire 50 Current Sensing Relay 24V Induction

SKU CH-PX2E-RGJ8X

Current sensing relay for 24V induction systems, model 50, weighing .17 lb

  • Product weight0.17
  • Product typeClosed Base
  • Main materialHAWA
  • Senses 24 V current to trigger fan operation
  • Model 50 relay designed for induction loads
  • Lightweight at 0.17 for easy installation
  • Closed-base construction protects internal components
  • Automates fan control without manual switching

Aprilaire 50 Current Sensing Relay

The Aprilaire 50 is a current sensing relay designed for 24V induction applications. It functions as a fan accessory to detect electrical current flow and trigger a connected circuit. This component suits HVAC technicians and installers integrating automatic fan controls. It is not for buyers who need a line-voltage switching device.

24V induction compatibility

The single specification that decides fit is the 24V induction rating. The relay coil and sensing circuit are calibrated exclusively for this voltage and load type. Using it on other voltages or non-inductive loads will prevent correct operation. Verify the control circuit matches these parameters before purchase.

Low power draw and silent operation

The solid-state sensing design draws minimal power and produces no audible noise during normal use. A weight of .17 units indicates a compact, lightweight housing that adds negligible thermal load to the control panel. No active cooling or ventilation is required for the relay itself.

How it compares

Measured against everything we stock in Fan Motors, Parts & Clip-On Fans, at today’s prices. Recalculated every night.

Price $43.99
Typical for this category: the median of 473 items is $38.99.

Specifications

Product
Brand nameAPRILAIRE
Product typeClosed Base
Size & build
Main materialHAWA

Questions about this item

What does the 50 A rating mean when the relay is installed in a 24 V system?

The relay is rated for 50 A of current draw, so it will switch the connected load on or off whenever the sensed circuit exceeds that threshold at 24 V.

How does the induction sensing method affect what the relay can control?

Induction sensing detects current flow without direct electrical contact, allowing the relay to monitor AC circuits and trigger the 24 V output accordingly.

What physical space and mounting does the closed-base relay require?

The closed-base design mounts in a standard electrical enclosure and weighs only 0.17 lb, so it fits easily alongside other fan accessories.

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