Factory Authorized Parts™ HT01CN241 HVAC Transformer 120V/208V/240V to 24V 40VA

The HT01CN241 is a high-performance multi-tap step-down transformer engineered to serve as the primary power source for the control circuits in Carrier, Bryant, and Payne furnaces, air handlers, and package units. As a genuine Factory Authorized Part, this transformer acts as the "electrical heart" of your HVAC equipment, converting high-voltage incoming power (120V, 208V, or 240V) into the stable 24V Alternating Current required to operate the thermostat, control board, and safety switches. It is specifically designed to handle the inductive loads of contactors and relays, ensuring that the system's "brain" receives constant, filtered power to manage heating and cooling cycles without the risk of voltage fluctuations or brownouts.

Key Features:

• Genuine OEM Precision: Engineered under part number HT01CN241 to meet the exact secondary voltage output and VA rating required by Carrier Corporation’s sensitive electronic control boards.
• Multi-Tap Primary Versatility: Features multiple primary lead wires (Black, White, Red, Orange) allowing for seamless installation in 120V, 208V, or 240V applications.
• Robust 40VA Power Rating: Provides a strong 40 Volt-Amp capacity, ensuring ample power for modern "smart" thermostats and multiple-stage cooling contactors.
• Class 2 Energy Limiting: Built with internal thermal protection to prevent overheating and circuit damage in the event of a low-voltage short or system overload.
• Direct-Fit Footprint: Designed with the standard OEM mounting bracket and color-coded lead wires for a fast, "drop-in" replacement that maintains factory safety standards.

Product Details:

• Brand: Factory Authorized Parts™ (Carrier/Bryant/Payne)
• Manufacturer: United Technologies / Carrier Corp
• Part Number: HT01CN241
• Weight: 2.1 lbs
• Primary Voltage: 120V / 208V / 240V
• Secondary Voltage: 24V
• Power Rating: 40VA
• Connection Type: Color-Coded Lead Wires

🛠️ HVAC Depot Pro Tip: Practical Installation Advice

"Check for the Short First!" Transformers like the HT01CN241 rarely fail on their own; they usually "burn out" because of a short circuit in the 24V wiring (like a rubbed-out wire at the outdoor condenser). Before installing the new unit, take a picture of the original wiring. Once installed, we highly recommend adding a 3-amp or 5-amp automotive-style fuse in-line on the secondary (R) wire. This ensures that if the short still exists, you only blow a cheap fuse instead of destroying your brand-new OEM transformer.

Cross-Reference:

• Superseded Numbers: HT01CN238, HT01CN235, HT01CN239
• Legacy Numbers: 1173516, 1171746
• Drawing Numbers: 311340-401, P251-2403
• Equivalent Brands: Bassler, Jard, White-Rodgers (Carrier Certified Series)

Model Compatibility:

58STA/58STX Series (Suffixes: 045, 070, 090, 110, 135, 155)

310A/310J Series (Suffixes: 024045, 036070, 048090, 066110, 066135)

59SC2/59SC5 Series (Suffixes: 040S14, 060S14, 080S17, 100S21, 120S24)

48HG/48PG Series (Suffixes: 014, 016, 020, 024, 028)

FA4B/FB4B Series (Suffixes: 018000, 024000, 030000, 036000, 042000, 048000, 060000)