ebm-papst S4D350-AN08-50

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Operating instructions

S4D350-AN08-50

Translation of the original operating instructions

ebm-papst Mulfingen GmbH & Co. KG

Bachmühle 2

D-74673 Mulfingen

Phone +49 (0) 7938 81-0

Fax +49 (0) 7938 81-110

info1@de.ebmpapst.com

www.ebmpapst.com

CONTENTS

1. SAFETY REGULATIONS AND INFORMATION

11. SAFETY REGULATIONS AND INFORMATION

Read these operating instructions carefully before starting work on the

device. Observe the following warnings to prevent malfunctions or

danger to persons.

These operating instructions are to be regarded as part of the device.

The device is only to be sold or passed on together with the operating

instructions.

These operating instructions may be duplicated and distributed to inform

about potential dangers and their prevention.

1.1 Hazard levels for warnings

11.1 Hazard levels for warnings

These operating instructions use the following hazard levels to indicate

potentially hazardous situations and important safety regulations:

DANGER

Indicates an imminently hazardous situation which will result in

death or serious injury if the specified actions are not taken.

Compliance with the instructions is imperative.

WARNING

Indicates a potentially hazardous situation which can result in

death or serious injury if the specified actions are not taken.

Exercise extreme caution while working.

CAUTION

Indicates a potentially hazardous situation which can result in

minor or moderate injury or damage to property if the specified

actions are not taken.

NOTE

A potentially harmful situation can occur and, if not avoided, can

lead to property damage.

1.2 Staff qualifications

11.2 Staff qualifications

The device may only be transported, unpacked, installed, operated,

maintained and otherwise used by suitably qualified, trained and

authorized technical staff.

Only authorized specialists are permitted to install the device, to carry

out a test run and to perform work on the electrical installation.

1.3 Basic safety rules

11.3 Basic safety rules

The safety hazards associated with the device must be assessed again

following installation in the final product.

The locally applicable industrial safety regulations are always to be

observed when working on the device.

Keep the workplace clean and tidy. Untidiness in the work area

increases the risk of accidents.

Note the following when working on the device:

; Do not perform any modifications, additions or conversions on the

device without the approval of ebm-papst.

1.4 Voltage

11.4 Voltage

; Check the device's electrical equipment at regular intervals; see

Chapter 5.2 Safety inspection.

; Replace loose connections and defective cables immediately.

DANGER

Electrically charged device

Risk of electric shock

→ When working on an electrically charged device, stand on a

rubber mat.

21.5 Safety and protective features

21.6 Electromagnetic radiation

21.7 Mechanical movement

21.8 Emissions

21.9 Hot surface

21.10 Transport

21.11 Storage

32. INTENDED USE

43. TECHNICAL DATA

43.1 Product drawing

53.2 Nominal data

53.3 Data according to Commission Regulation (EU) 327/2011

53.4 Technical description

63.5 Mounting data

63.6 Transport and storage conditions

64. CONNECTION AND STARTUP

64.1 Mechanical connection

64.2 Electrical connection

74.3 Connection in terminal box

94.4 Connection diagram

104.5 Opening additional cable glands

104.6 Checking connections

104.7 Switching on the device

104.8 Switching off the device

105. MAINTENANCE, MALFUNCTIONS, POSSIBLE

CAUSES AND REMEDIES

115.1 Cleaning

115.2 Safety inspection

115.3 Disposal

Item no. 11661-5-9970 · ENU · Change 206588 · Approved 2019-11-18 · Page 1 / 12

ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com

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This document describes the S4D350-AN08-50 device, an ebm-papst Mulfingen GmbH & Co. KG product, intended for conveying air as a built-in component. It is designed for use in power systems with grounded neutral (TN/TT power systems) and operates within an ambient air pressure range of 800 mbar to 1050 mbar. The device is suitable for operation within specified ambient temperature ranges, which are detailed in the technical specifications. Proper use requires adherence to all protective devices and the operating instructions.

Function Description

The S4D350-AN08-50 is a three-phase external rotor motor fan, primarily designed for air conveying applications. Its core function involves moving air efficiently, making it suitable for integration into various customer equipment and systems. The fan operates with an impeller and rotor system, which, when powered, creates an airflow in the direction indicated as "V" on the product drawing. The direction of rotation is counterclockwise when viewed toward the rotor. The device is a built-in component, meaning it is integrated into a larger system, and the responsibility for adequate safeguarding lies with the owner of the system.

Important Technical Specifications

Motor Type: M4D074-DF
Weight: 4.9 kg
Size: 350 mm
Motor Size: 74
Number of Blades: 5
Airflow Direction: V
Direction of Rotation: Counterclockwise, viewed toward rotor
Degree of Protection: IP44 (installation- and position-dependent as per EN 60034-5)
Insulation Class: "F"
Moisture (F) / Environmental (H) Protection Class: H1
Installation Position: Shaft horizontal or rotor on bottom; rotor on top on request
Condensation Drainage Holes: On rotor side
Mode: S1
Motor Bearing: Ball bearing
Touch Current (according to IEC 60990, measuring circuit Fig. 4, TN system): < 0.75 mA
Electrical Hookup: Terminal box, variable
Protection Class: I (with customer connection of protective earth)
Conformity with Standards: EN 60335-1, motor does not have factory-installed overheating protection; CE, EAC, CCC
Rotor Surface: Painted black
Blade Material: ABS plastic
Guard Grille Material: Steel, coated with black plastic (RAL 9005)
Nominal Voltage / VAC: 230V (Delta connection) or 400V (Star connection)
Frequency / Hz: 50 Hz or 60 Hz
Speed (rpm) / min-1: 1370 (50 Hz) or 1520 (60 Hz)
Power Consumption / W: 170 (50 Hz) or 230 (60 Hz)
Current Draw / A: 0.64 (230V, 50Hz) to 0.70 (230V, 60Hz) or 0.37 (400V, 50Hz) to 0.40 (400V, 60Hz)
Max. Back Pressure / Pa: 90
Min. Ambient Temperature / °C: -25
Max. Ambient Temperature / °C: 65 (50 Hz) or 55 (60 Hz)
Starting Current / A: 1.9 (230V) or 1.1 (400V)
Overall Efficiency nes / % (Actual): 29.6
Efficiency Category: A (Static)
Efficiency Grade N: 41.1
Power Consumption Pe / kW: 0.15
Air Flow qv / m³/h: 2095
Pressure Increase Total psf / Pa: 83
Specific Ratio: 1.00

Usage Features

Installation: The device is designed for mechanical connection by securing it with screws of strength class 8.8. It is crucial to ensure stress-free attachment to the substructure and secure positioning until all fastening screws are tightened. The fan must not be strained on fastening.
Electrical Connection: Connection to a power supply requires careful attention to safety. A protective earth connection must be established first. Only cables meeting specified installation regulations for voltage, current, insulation material, and capacity should be used. Cables should be routed to prevent contact with rotating parts. The device is a built-in component and lacks a disconnecting switch, so it must be connected to circuits that can be switched off with an all-pole disconnection switch.
Terminal Box: Wires are connected within a terminal box. The cable gland must be sealed, and connections must be strain-free. Cable routing should ideally form a U-shaped loop to prevent water ingress, especially for fans installed lying flat. For upright installations, cable glands should be at the bottom, and cables routed downward.
Motor Protection: The device is supplied without automatic overheating protection. For versions without a thermal overload protector, a suitable motor protection switch must be installed externally to prevent overheating and potential fire hazards.
Voltage Control: If speed control is implemented via transformers or electronic voltage regulators (e.g., phase control), current overshoots, noise, and vibration may occur. The heating-up of the motor under voltage control must be checked by the customer after installation.
Variable Frequency Drive: For operation with variable frequency drives, sinusoidal filters (working on all poles) must be installed between the drive and the motor. These filters protect against high-voltage transients and harmful bearing currents. The motor's heating-up must be checked by the customer.
Intended Use Limitations: The device is not intended for operation in an unbalanced state, with severe vibration, in medical life-sustaining equipment, for conveying solids or abrasive/corrosive particles (unless specifically designed), with high dust content, near flammable materials, in explosive atmospheres, or as a safety component. Any modifications or operation with disassembled protective devices are prohibited.

Maintenance Features

Cleaning: Regular cleaning is essential for proper operation and to prevent soiling, which can cause overheating and vibration, shortening the fan's service life. Cleaning should only be performed when the fan is not in motion, with the power supply interrupted and secured against renewed switch-on. Dry cleaning, such as with compressed air, is the preferred method. Aggressive cleaning agents, water jets, high-pressure cleaners, acids, alkalis, solvents, or sharp-edged objects must not be used. All cleaning agents must be completely removed.
Safety Inspection: Regular safety inspections are recommended every 6 months. This includes:
- Contact protection cover: Visual inspection for intactness or damage.
- Device for damage to blades and housing: Visual inspection.
- Fastening the cables and protective earth terminal: Visual inspection to ensure they are fastened.
- Insulation of cables: Visual inspection for damage.
- Tightness of cable gland: Visual inspection.
- Condensation drainage holes: Visual inspection for clogging.
- Welds: Visual inspection for crack formation.
- Abnormal bearing noise: Acoustic check.
- Loose connections and defective cables should be replaced immediately.
Bearing Lifetime: The fan is equipped with maintenance-free ball bearings designed for a service life of 40,000 hours. If bearing replacement becomes necessary after this period, ebm-papst should be contacted.
Vibration Management: Low-vibration operation must be ensured across the entire speed control range. Severe vibration can indicate inexpert handling, transport damage, imbalance, or structural resonance. Speed ranges with excessively high vibration levels should be identified during commissioning and either avoided or remedied.
Storage: If the device is out of use for some time, it is recommended to switch it on for at least two hours to evaporate any condensation and move the bearings.
Disposal: The product components are mostly steel, copper, aluminum, and plastic, which are generally recyclable. Components should be separated into categories (steel and iron, aluminum, non-ferrous metal, plastics, insulating materials, cables and wires, electronic scrap) for proper disposal. Ferrite magnets can be disposed of like normal iron and steel. Country-specific legal regulations for disposal must always be observed. Disassembly should be performed or supervised by qualified personnel.