Transformer 96VA, 120 to 24 Vac, Circuit Breaker, DIN Rail Mount

Functional Devices TIB100A 120 to 24 Vac Transformer, 96VA, Circuit Breaker, DIN Rail Mount

The Functional Devices TIB100A is a 96VA transformer that steps down 120 Vac primary voltage to 24 Vac secondary voltage, featuring an integrated circuit breaker for overcurrent protection and a DIN rail mounting system for compact panel installation. This gray transformer operates at a maximum ambient temperature of 40°C and delivers reliable power for low-voltage control circuits in HVAC, automation, and industrial applications.

Key Features & Benefits

• 96VA Power Capacity: Supplies up to 4 amps at 24 Vac to power multiple control devices simultaneously.
• Integrated Circuit Breaker: Protects against overcurrent conditions up to 100 amps, eliminating the need for external overcurrent protection.
• DIN Rail Mount Design: Snaps onto standard 35mm DIN rails for fast, secure installation in control panels and electrical enclosures.
• 120 to 24 Vac Step-Down: Converts standard line voltage to safe low-voltage control power for thermostats, relays, actuators, and other control equipment.
• 40°C Maximum Operating Temperature: Maintains stable performance in typical control panel environments without derating.
• Gray Enclosure: Neutral color matches standard industrial and commercial panel aesthetics.
• Five-Year Warranty: Coverage protects against defects in materials and workmanship.
• VA Rating: 100
• Amperage: 100
• Secondary Voltage: 24v

Compatibility & Requirements

Installation should be performed by a qualified electrician familiar with local electrical codes and transformer wiring practices. The primary side connects to a 120 Vac power source; verify that the supply circuit is properly grounded and protected by an appropriately sized breaker or fuse. The 24 Vac secondary output is suitable for Class 2 wiring when used within rated VA limits. Check local and national electrical codes (NEC Article 725 for Class 2 circuits) to confirm compliance. The DIN rail must be clean, straight, and securely mounted to support the transformer's weight. Secondary-side wiring, control devices, and any additional transformers are sold separately.

Installation & Care

Confirm that all power to the panel is off before beginning installation. Snap the transformer onto the DIN rail by hooking the upper clip over the rail and pressing down until the lower latch clicks into place. Connect the primary input wires to the 120 Vac terminals, observing proper polarity and ensuring tight, secure connections. Connect the secondary output wires to the 24 Vac terminals, again verifying polarity and connection integrity. Restore power and verify output voltage at the secondary terminals using a multimeter; it should read approximately 24 Vac under no-load conditions. Avoid exceeding the 96VA capacity; calculate total connected load by multiplying secondary voltage by the sum of all connected device currents. Keep ventilation openings clear and do not install in environments exceeding 40°C ambient temperature. Inspect connections annually for tightness and signs of overheating.

What's Included

• Functional Devices TIB100A transformer with integrated circuit breaker
• DIN rail mounting hardware

Warranty & Support

Five-year warranty covers defects in materials and workmanship under normal use.

Frequently Asked Questions

Q: Can this transformer power multiple 24 Vac devices at once?
A: Yes, the TIB100A can power multiple devices as long as the total combined VA load does not exceed 96VA; calculate load by adding the VA rating of each connected device.

Q: What happens if the circuit breaker trips?
A: The integrated circuit breaker disconnects power to protect the transformer and connected devices; identify and correct the overcurrent condition, then reset the breaker manually.