ebm-papst 4856ZW high-performance AC axial fan delivers reliable airflow for commercial HVAC/R applications. Part of the durable 4000Z series with IP20 rating and UL/CSA approvals.

• Optimized Blade Geometry - Engineered for maximum airflow with minimal noise generation
• Robust Metal Construction - Die-cast aluminum housing withstands demanding environments
• Energy Efficient Operation - Low power consumption meets modern efficiency standards

ebm-papst 4856ZW AC Axial Fan - Professional Air Movement Solution

The ebm-papst 4856ZW represents a premium-grade AC axial fan within the renowned 4000Z series, specifically engineered for commercial HVAC and refrigeration applications. This German-engineered fan delivers exceptional airflow performance while maintaining quiet operation, making it ideal for noise-sensitive environments like supermarkets, restaurants, and office buildings. Featuring a durable all-metal construction, the 4856ZW is built to withstand continuous operation in challenging conditions. Its optimized impeller design moves air efficiently parallel to the rotation axis, creating consistent airflow patterns essential for proper heat exchange in condenser and evaporator applications.

Technical Excellence

Performance Characteristics:

• Delivers high-volume airflow precisely where needed
• Maintains stable performance across operating temperature ranges
• Low vibration operation reduces wear on connected equipment
• Electrically optimized for stable performance with variable loads

Durability Features:

• Corrosion-resistant materials ensure long service life
• Protected motor windings resist moisture ingress
• Precision-balanced rotor assembly minimizes bearing wear
• Robust terminal connections withstand vibration

4856ZW Product Attributes

Attribute	Specification
Airflow Direction	Axial
Approvals	UL, CSA
Bearing Type	Sleeve
Brand	ebm-papst
Current Type	AC
Depth	38mm
Frame Material	Aluminum
Frequency	50/60Hz
IP Rating	IP20
Mounting Type	Screw
Noise Level	38 dB(A)
Operating Temperature	-20°C to +70°C
Power Consumption	16W
Product Category	AC Fans
Rotation	Clockwise
Series	4000Z
Size	80x80mm
Speed	2450 RPM
Terminal Type	Lead Wires
Voltage	230VAC
Weight	420g

4000Z Series Overview

The 4000Z series represents ebm-papst's commercial-grade AC axial fan platform, offering:

Series Characteristics:

• Size Range: Available from 80mm to 250mm frame sizes
• Voltage Options: 115VAC, 230VAC, and 277VAC variants
• Material Choices: Aluminum or galvanized steel housings
• Bearing Systems: Sleeve bearing or optional ball bearing configurations
• Performance Tiers: Standard and high-static pressure models

Typical Applications:

• Commercial refrigeration condensers
• HVAC air handlers
• Display case cooling systems
• Process cooling equipment
• Industrial ventilation

The series combines German engineering precision with rugged construction suitable for 24/7 operation. All models undergo stringent quality control testing to ensure consistent performance across all units.

Why Choose the 4856ZW?

Superior Engineering

Every 4856ZW fan benefits from ebm-papst's 70+ years of air movement expertise. Computational fluid dynamics (CFD) optimizes the blade profile for maximum efficiency while reducing turbulence noise.

Reliable Performance

Tested to 50,000+ hours MTBF (Mean Time Between Failures) under normal operating conditions. The motor features automatic thermal overload protection for added safety.

Easy Integration

Standardized dimensions and mounting patterns allow for simple replacement of existing fans. The pre-tinned lead wires simplify electrical connections.

Environmental Compliance

Meets international standards including:

• RoHS compliance
• REACH chemical regulations
• UL/CSA electrical safety
• ERP energy efficiency directives

Technical Specifications Deep Dive

Airflow Performance

The 4856ZW delivers 48 CFM (1.36 m³/min) at zero static pressure, maintaining strong airflow even against system resistance. Advanced blade geometry creates a smooth airflow pattern with minimal turbulence.

Acoustic Profile

Engineered to operate at just 38 dB(A) at one meter distance - quieter than most conversation levels (60 dB). This makes it suitable for environments where noise reduction is critical.

Electrical Characteristics

• Start-up Current: <0.5A inrush
• Power Factor: >0.85 at rated load
• Insulation Class: B (130°C)

Mechanical Properties

• Impeller Material: Aluminum alloy with protective coating
• Frame Stiffness: Reinforced rib structure prevents distortion
• Mounting Points: 4 corrosion-resistant steel screw positions

Ideal Application Scenarios

Commercial Refrigeration

• Walk-in cooler/freezer condensers
• Display case airflow systems
• Ice machine cooling units

HVAC Systems

• Roof-top unit ventilation
• Fan coil air movement
• Heat pump outdoor units

Specialty Cooling

• Commercial kitchen exhaust assists
• Medical equipment cooling
• Laboratory instrument temperature control

Comparison With Similar Models

4856ZW comparison with alternative parts

Model	Airflow	Noise	Voltage	Key Difference
4856ZW	48 CFM	38 dB	230VAC	Standard version
4856ZH	52 CFM	42 dB	230VAC	High-speed variant
4856ZB	48 CFM	36 dB	230VAC	Ball bearing upgrade
4856ZU	45 CFM	33 dB	115VAC	US voltage option

ebm-papst 4856ZW AC Axial Fan – Frequently Asked Questions

Q: How does the 4856ZW's sleeve bearing compare to the 4856ZB's ball bearing?

A: The standard 4856ZW uses sleeve bearings (50,000-hour lifespan), while the 4856ZB variant features ball bearings for extended 60,000-hour operation. The ZB model runs 2dB quieter (36dB vs 38dB) and handles higher temperatures (+80°C vs +70°C).

Q: Is there a 115V alternative to the 230V 4856ZW?

A: Yes, the 4856ZU provides identical performance specifications (48CFM/38dB) but operates at 115VAC, making it the North American voltage-compatible version of the 4856ZW.

Q: When should I choose the 4856ZH over the standard 4856ZW?

A: Opt for the 4856ZH high-speed variant when you need 52CFM airflow (vs 48CFM), accepting slightly higher noise (42dB vs 38dB). The standard 4856ZW remains ideal for balanced performance.

Q: What's the difference between IP20-rated 4856ZW and IP54-rated variants?

A: While the 4856ZW has basic IP20 protection, the 4856ZD model offers IP54 dust/water resistance for harsh environments. Both maintain identical airflow (48CFM) and frame dimensions.

Q: How does this fan compare to other 4000Z series models?

A:

Model	CFM	Noise	Voltage	Key Difference
4856ZW	48 CFM	38 dB(A)	230VAC	Standard version
4856ZH	52 CFM	42 dB(A)	230VAC	High-speed variant
4856ZB	48 CFM	36 dB(A)	230VAC	Ball bearing upgrade

Q: Where is the 4856ZW fan commonly used?

A: Typical applications include: Refrigerated display cases Split-system air conditioner condensers Walk-in cooler/freezer cooling units Industrial enclosure ventilation

Q: Can the 4856ZW replace similar-sized axial fans?

A: Yes, its 80x80mm frame size complies with industry-standard dimensions, making it a direct replacement for many axial fans in condensers, air handlers, and refrigeration units.