Product Details

The Fireye NXVFD7563A is a high-power factory integrated variable frequency drive designed for the Fireye Nexus combustion control platform, built to drive large combustion blower motors for heavy industrial burners. This variable frequency drive receives analog and bus modulation commands from PPC4000, PPC6000 and NX6300 parallel positioning controllers, dynamically adjusting blower airflow to match fuel supply and maintain stable fuel-air ratio across the whole modulation range. As a reliable heavy-duty burner blower VFD, it is housed in a rugged NEMA 12 cabinet, pre-equipped with fused line disconnect, motor overload protection and backlit local LCD keypad for parameter programming, real-time status viewing and fault diagnosis. This Nexus combustion speed inverter delivers smooth high-torque fan modulation, reduces standby power consumption and cuts NOx and CO emissions for large boilers and process heaters; it is stocked as genuine replacement spare part for Fireye Nexus burner management systems.

Basic Parameters

Brand: Fireye

Model: NXVFD7563A

Type: High power combustion blower variable frequency drive

Rated power: 75 HP

Rated continuous current: 77 A

Power supply: 600 VAC, three-phase, 50 / 60 Hz

Enclosure rating: NEMA 12

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

Signal interface: Analog speed setpoint, speed feedback, compatible with Nexus control bus

Compatible master controllers: PPC4000, PPC6000, NX6300

Suitable load: Large combustion air blower motor

Certifications: UL listed, CE compliant

Product type: Original Fireye Nexus high horsepower blower inverter

Supported Functions

This VFD follows firing demand signals transmitted by the host combustion controller and continuously modulates blower motor speed. It provides comprehensive motor protection including overload, overvoltage, undervoltage, phase loss and short-circuit protection. Operators can check running frequency, motor current, cumulative runtime and fault history via the local keypad, and configure acceleration and deceleration ramps to avoid airflow surges during ignition, load adjustment and shutdown. It works together with PXMS pressure transmitters and oxygen trim probes to realize closed-loop energy-saving combustion control.

Core Functions

The heavy-duty NEMA 12 cabinet provides reliable protection against dust, moisture and vibration commonly found in boiler houses. Pre-assembled internal hardware greatly reduces field wiring workload and shortens commissioning time for large burner retrofit projects. Its stable high-torque output and fine speed resolution support precise air-fuel tuning for low-emission combustion, and it serves as direct drop‑in substitution for existing NXVFD7563A variable frequency drives.

Hardware Specifications & Environmental Features

Mounting: Floor or panel cabinet 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 full load current rating and Nexus controller signal compatibility before ordering; this high-power drive is purpose-built for combustion blowers and requires engineering evaluation for general motor applications.

This is from our current stock.

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