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Small cylindrical fuse link with metal end caps and printed ratings

Rheem

Rheem 44-20037-03 Fuse Link 333F 15A 24/120/230V

SKU CH-N601-A1WQ3

A 15 A fuse link rated 333 °F and 24/120/230 V protects HVAC circuits from over-current and over-temperature faults

  • Protects equipment with 333F thermal cut-off
  • Handles multi-voltage systems at 24/120/230V
  • Rated for 15A continuous current
  • Genuine Rheem replacement part
  • Ready for universal HVAC applications

Rheem 333F Fuse Link Specifications

The Rheem 44-20037-03 is a fuse link rated at 333 degrees Fahrenheit with a 15-ampere capacity. It operates across 24, 120, and 230-volt systems for universal HVAC applications. This new component serves as a thermal safety device for air conditioning and refrigeration equipment.

Thermal Trip Point and Voltage Limits

The device interrupts the circuit only when temperatures reach the fixed 333F threshold. It cannot be adjusted or reset after activation. The multi-voltage rating covers common control circuits but does not extend to higher industrial line voltages beyond 230 volts.

Replaces Blown Thermal Fuses

This part replaces a fuse link that has already opened due to an over-temperature event. The upgrade is worth it when the original Rheem component fails and the system wiring and controls remain intact. It is not for buyers who need a resettable breaker or a different temperature rating.

How it compares

Measured against everything we stock in Coolers & Refrigeration Parts, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 69% of the 161 comparable items (median $49.99).

Specifications

Product
Brand nameRheem

Questions about this item

Which fuse-link rating matches my unit — the 333F 15 A version or a different amperage?

The part supplied is the 333F model rated at 15 A for 24 V, 120 V and 230 V circuits.

What does the 333F 15 A rating mean once the fuse link is installed in my HVAC system?

It will open at 15 amps to protect 24 V, 120 V or 230 V control circuits from overcurrent.

What voltage standard does the 24/120/230 V fuse link cover in practice?

It is rated for 24 V control, 120 V single-phase and 230 V single-phase supplies.

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