Product Details

The Fireye NXVFD76A is a dedicated variable frequency drive developed for the Fireye Nexus combustion control system, used to precisely regulate the rotational speed of burner blower motors. This variable frequency drive receives speed commands from PPC4000, PPC6000 and other parallel positioning controllers, continuously adjusting air volume to match fuel supply and maintain optimal fuel-air ratio. As a reliable burner blower VFD, it is assembled inside a NEMA 12 enclosure, equipped with fused disconnect switch, motor overload relay and backlit LCD keypad for local parameter setting and real-time status monitoring. This Nexus combustion inverter greatly reduces idle power consumption, stabilizes combustion under variable load, and is widely matched to gas and oil fired industrial burners; stocked as genuine replacement spare part for Fireye Nexus burner management systems.

Basic Parameters

Brand: Fireye

Model: NXVFD76A

Type: Variable frequency drive for combustion blower

Rated power: 7.5 HP

Rated current: 9.0 A continuous

Power supply: 600 VAC, three-phase

Enclosure rating: NEMA 12

Built-in components: Fused disconnect, motor overload relay, backlit LCD display and keypad

Communication: Compatible with Nexus control bus and analog speed command

Compatible controllers: PPC4000, PPC6000, NX6300

Supported load: Combustion air blower motor

Certifications: UL, CE listed

Product type: Original Fireye combustion blower inverter

Supported Functions

This VFD receives modulation signals from the master combustion controller and automatically changes blower speed according to firing demand. It provides motor overload, overvoltage, undervoltage and short-circuit protection. Operators can check running frequency, load current and fault history on the local LCD panel, and set acceleration / deceleration ramps to avoid airflow shock during ignition and load change. It works together with oxygen trim and pressure feedback to achieve energy-saving closed-loop combustion control.

Core Functions

The integrated NEMA 12 cabinet offers good protection against dust and moisture inside boiler rooms. The pre-wired internal components simplify on-site installation and reduce extra assembly work. It supports smooth speed regulation across the full firing range to lower NOx and CO emissions, and it serves as direct drop‑in substitution for existing NXVFD76A variable frequency drives.

Hardware Specifications & Environmental Features

Mounting: Cabinet style floor or panel mounting

Operating temperature: 0 °C to +40 °C

Storage temperature: -40 °C to +85 °C

Relative humidity: 5% – 90%, non‑condensing

Protection class: NEMA 12

Housing: Heavy-duty painted metal cabinet

Condition: Original new Fireye variable frequency drive

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm three-phase 600V power supply, blower motor rating and Nexus controller communication protocol before ordering; this VFD is specially tuned for combustion blowers and cannot be used for general motor applications without evaluation.

This is from our current stock.

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