SK 3138000 Roof Mounted Fan

Rittal Roof-Mounted Fan

The Rittal Roof-Mounted Fan is a ventilation system designed to
improve air circulation in enclosures. It is available in different
models: SK 3138000, SK 3139100, SK 3139110, SK 3140100, SK 3140110,
SK 3140140, SK 3140500, and SK 3140510.

1. Safety Instructions

1.1 Safety Instructions

Before installing and using the Rittal Roof-Mounted Fan, please
read and follow the safety instructions provided in the assembly
and installation instructions manual.

1.2 Intended Use

The Rittal Roof-Mounted Fan is intended for use as a ventilation
system in enclosures. It is not suitable for use in hazardous
environments or for any other purpose.

2. Product Description

2.1 Components

The Rittal Roof-Mounted Fan consists of the following
components:

Cover
Fan plate with fan
Inflow nozzle for air routing
Base tray with pleated filter
Electrical connector

Refer to Figure 1 for a visual representation of the
components.

2.2 Scope of Supply

The Rittal Roof-Mounted Fan comes with the following:

Rooftop-mounted fan unit
Pleated filter
Assembly and installation instructions manual
Connector

Refer to Table 1 for a detailed description of the scope of
supply.

2.3 Function

The Rittal Roof-Mounted Fan improves air circulation in
enclosures. It has safety devices and filter mats to ensure proper
ventilation. Refer to the assembly and installation instructions
manual for more information about its function.

3. Mounting

3.1 Choosing the Installation Site

When choosing the installation site for the Rittal Roof-Mounted
Fan, ensure that the unit is guaranteed. Refer to the assembly and
installation instructions manual for more information about
choosing the installation site.

3.2 Notes on Installation

3.2.1 General

Check the packaging carefully for signs of damage before
installing the unit. Any packaging damage may cause a subsequent
functional failure. Ensure that the inlet filter provides adequate
air exchange.

3.2.2 Layout of the Electronic Components in the Enclosure

Take note of the air flows from the internal fans of installed
electronic components. When installing the Rittal Roof-Mounted Fan,
ensure that the airflows of fans and built-in electronic components
do not adversely influence one another (air short-circuit). Observe
the corresponding minimum distances between the fan and component
to ensure unhindered air circulation.

3.2.3 General

Carefully deburr the cut-out to prevent injuries caused by sharp
edges. Check that the clips are completely snapped into place to
ensure that the Rittal Roof-Mounted Fan is securely held in the
mounting cut-out.

3.3 Installing the Roof-Mounted Fan

Refer to the assembly and installation instructions manual for
detailed steps on how to install the Rittal Roof-Mounted Fan. The
manual provides additional installation steps for different
protection categories and air throughput.

4. Electrical Connection

4.1 Connecting the Power Supply

Refer to the assembly and installation instructions manual for
information on the electrical installation and connection data.
Ensure that the PE conductor connection, overvoltage protection,
and supply line load are properly installed.

4.2 Installing the Pilot Wire

Refer to the assembly and installation instructions manual for
information on how to install the pilot wire.

5. Commissioning

Refer to the assembly and installation instructions manual for
information on how to commission the Rittal Roof-Mounted Fan.

6. Inspection and Maintenance

Refer to the assembly and installation instructions manual for
information on how to inspect and maintain the Rittal Roof-Mounted
Fan.

7. Storage and Disposal

Refer to the assembly and installation instructions manual for
information on how to store and dispose of the Rittal Roof-Mounted
Fan.

8. Technical Specifications

Refer to the assembly and installation instructions manual for
technical specifications of the Rittal Roof-Mounted Fan.

9. Accessories

Refer to the assembly and installation instructions manual for
information on available accessories for the Rittal Roof-Mounted
Fan.

10. Warranty

Refer to the assembly and installation instructions manual for
information on the warranty of the Rittal Roof-Mounted Fan.

11. Customer Services Addresses

Refer to the assembly and installation instructions manual for
customer service addresses.

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Roof-mounted fan

SK 3138000 SK 3139100 SK 3139110 SK 3140100

SK 3140110 SK 3140140 SK 3140500 SK 3140510

Assembly and installation instructions

Contents

1. Safety instructions

1.1 Safety instructions

1.2 Intended use

2. Product description

2.1 Components

2.2 Scope of supply

2.3 Function

2.3.1 General

2.3.2 Safety devices

2.3.3 Filter mats

3. Mounting

3.1 Choosing the installation site

3.2 Notes on installation

3.2.1 General

3.2.2 Layout of the electronic components in

the enclosure

3.2.3 General

3.3 Installing the roof-mounted fan

3.3.1 Installation IP 21

3.3.2 Additional installation steps: Installation

from outside IP 54/UL Type 12

3.3.3 Additional installation steps: Installation

from inside IP 54/UL Type 12

3.3.4 Additional installation steps: Enhanced

protection category IP 55/UL Type 12

3.3.5 Additional installation steps: Protection

category IP 21/UL Type 1 and higher air

throughput

4. Electrical connection

4.1 Connecting the power supply

4.1.1 Notes on electrical installation

4.1.2 Connection data

4.1.3 Overvoltage protection and supply line load 12

4.1.4 PE conductor connection

4.1.5 Installing the power supply

4.2 Installing the pilot wire

5. Commissioning

6. Inspection and maintenance

7. Storage and disposal

8. Technical specifications

9. Accessories

10. Warranty

11. Customer services addresses

Rittal roof-mounted fan

1. Safety instructions
1.1 Safety instructions
Assembly, installation and servicing may only be performed by properly trained specialists.
Do not obstruct the air inlet and air outlet of the roof-mounted fan inside and outside the enclosure.
The specific air throughput of the roof-mounted fans must be adequate to meet the climate control requirements of the enclosure.
Use only original spare parts and accessories. Do not make any changes to the roof-mounted fan other than
those described in these and other applicable instructions. The roof-mounted fan must only be connected to the mains
with the system de-energised. Connect the prefuse specified in the Technical Specifications. Never insert your fingers into the rotating fan blade. The roof-mounted fan must only be fitted on a sealed enclosure with protected access to the electrical connection. Electrical connection and any repairs may only be carried out by authorised, specialist personnel. Children and persons with limited cognitive/coordinative abilities must not operate, maintain or clean the unit or be allowed to use it as a toy. Spending long periods in the airflow may irritate the eyes and muscles. If extinguisher gas is used in the enclosure, the roof-mounted fan must be incorporated into the fire protection concept.

1.2 Intended use
Rittal roof-mounted fans were developed and designed in accordance with the state of the art and the recognised rules governing technical safety. Nevertheless, if used improperly, they may pose a threat to life and limb or cause damage to property. The unit is only intended for ventilating enclosures and electronic cases. Any other use is deemed improper. The manufacturer will not be liable for any damages caused as a result of improper use, or for incorrect assembly, installation or use. All risk is borne solely by the user. Proper usage also includes the observation of all valid documents and compliance with the inspection and servicing conditions.

Rittal roof-mounted fan

2. Product description
2.1 Components 1

Key
1 Cover 2 Fan plate with fan 3 Inflow nozzle for air routing 4 Base tray with pleated filter 5 Electrical connector

2 3 4
5 Fig. 1: Components

Rittal roof-mounted fan

2. Product description
2.2 Scope of supply Description

Illustration

Roof-mounted fan

Qty.

Annotation

Pleated filter
Assembly and installation instructions Connector Tab. 1: Scope of supply

Dachlüfter Roof-mounted fan Ventilateur de toit
Montage- und Installationsanleitung Assembly and installation instructions Notice de montage et d’installation

pre-installed

1x 1x

Rittal roof-mounted fan

2. Product description
2.3 Function
2.3.1 General The roof-mounted fan in conjunction with the corresponding inlet filter(s) is used to dissipate heat loss from enclosures and ventilate the enclosure, thereby protecting temperature-sensitive components. This is achieved via the direct infeed of ambient air, the temperature of which must be lower than the admissible enclosure interior temperature. The ambient air enters the enclosure via an air inlet grille in the lower section and is drawn upwards through the enclosure by the roof-mounted fan. The warmed air is then returned to the outside via the fan. It is not possible to change the air flow direction. 2.3.2 Safety devices The fan is equipped with a thermal winding protection for protection against overload. 2.3.3 Filter mats The roof-mounted fan is supplied with four pleated filters (class ePM10 50% to ISO 16890) pre-installed. The filter must be checked regularly depending on the level of dust exposure, and replaced as necessary.

Rittal roof-mounted fan

3. Mounting
3.1 Choosing the installation site
When choosing the installation site for the enclosure, please observe the following:
The site for the enclosure, and hence the position of the roof-mounted fan, must be carefully selected so as to ensure good ventilation.
The site must be free from excessive dirt and moisture. Roof-mounted fans must always be installed on horizontal
panels (roof). The ambient temperature must be lower than the admissible
enclosure interior temperature. The mains connection data as stated on the rating plate of
the unit must be guaranteed.
3.2 Notes on installation
3.2.1 General Check the packaging carefully for signs of damage.
Any packaging damage may be the cause of a subsequent functional failure.
Note: The inlet filter must ensure an adequate air exchange.
The enclosure must be sealed on all sides (IP 54). If the enclosure has a leak, unfiltered, contaminated air may enter the enclosure.
The fan motor is a rotating component that may transfer vibrations and oscillations.
Appropriate measures to decouple vibration must be taken in advance by the company responsible for the overall plant or system.
During transportation, the roof-mounted fan must be secured in accordance with section 3.3.2 or section 3.3.3 to prevent damage.
3.2.2 Layout of the electronic components in the enclosure
Take note of the air flows from the internal fans of installed electronic components.
When installing the roof-mounted fan, it is important to ensure that the airflows of fans and built-in electronic components do not adversely influence one another (air short-circuit).
The corresponding minimum distances between the fan and component must be observed in order to ensure unhindered air circulation.

3.2.3 General
Carefully deburr the cut-out to prevent injuries caused by sharp edges.
The position of the roof-mounted fan in the mounting cut-out is freely selectable. It should be based on the position of the electrical connection inside the enclosure.
No filter mats are needed in order to achieve protection category IP 21.
Check that the clips are completely snapped into place to ensure that the roof-mounted fan is securely held in the mounting cut-out.
The filter mats may be removed to achieve a higher air throughput. In this case, the protection category will be reduced to IP 21 and UL Type 1.
Use only original Rittal filters which bear the Rittal logo to be sure of the protection category, air throughout and approvals.
The protection category of the roof-mounted fan can be raised to IP 55. To this end, the pleated filters must be replaced with Rittal filter mats SK 3174100. The side with the Rittal logo must face towards the fan (see section 3.3.4).
Note: This reduces the air throughput. For details, please refer to the performance diagrams which can be found on the Rittal website.
You should inspect the filter regularly depending on the amount of dust. Recommended: Replace after 2,000 operating hours at the latest, and as and when necessary.
The orientation of the cover on the base tray is freely selectable.

Rittal roof-mounted fan

3. Mounting
3.3 Installing the roof-mounted fan 3.3.1 Installation IP 21
1
258±2 258±2

2
CLICK!

CLICK!

Rittal roof-mounted fan

3. Mounting

3.3 Installing the roof-mounted fan 3.3.2 Additional installation steps: Installation from outside IP 54/UL Type 12

5
TX25

TX25
6

MA = max. 2 Nm (4x)
7 ¼

TX25

Rittal roof-mounted fan

3. Mounting
3.3 Installing the roof-mounted fan 3.3.3 Additional installation steps: Installation from inside IP 54/UL Type 12
3
TX25

MA = max. 2 Nm (4x) 3.3.4 Additional installation steps: Enhanced protection category IP 55/UL Type 12

Rittal roof-mounted fan

3. Mounting

3.3 Installing the roof-mounted fan 3.3.5 Additional installation steps: Protection category IP 21/UL Type 1 and higher air throughput

Rittal roof-mounted fan

4. Electrical connection
4.1 Connecting the power supply
4.1.1 Notes on electrical installation When performing the electrical installation, it is important to
observe all valid national and regional regulations as well as the provisions of the responsible electrical supply company. The electrical installation must only be carried out by a qualified electrician who is responsible for compliance with the existing standards and regulations.
4.1.2 Connection data The connected voltage and frequency must correspond to
the values stated on the rating plate. The electrical installation and any repairs may only be carried
out by authorised specialist personnel. Use only original spare parts! Install the pre-fuse cited in the Technical Specifications (cir-
cuit-breaker or slow fuse) to protect from short-circuits. If several fans are operated on a single pre-fuse, observe the
total connected load. The roof-mounted fan must be connected to the mains via
an all-pole disconnecting device to overvoltage category III (IEC 61058-1).
4.1.3 Overvoltage protection and supply line load The unit does not have its own overvoltage protection. Measures must be taken at the supply end by the switch-
gear manufacturer or operator to ensure effective protection against lightning and overvoltage. The units are classified as overvoltage category III. The mains voltage must not exceed a tolerance of ±10%.
4.1.4 PE conductor connection The PE conductor must be connected to the PE conductor
system of the overall system.
4.1.5 Installing the power supply Remove the mains connector from the packaging and con-
nect to the mains as shown in the connection diagram. The connection terminal supplied allows the connection of
cable cross-sections of 0.5 to 4 mm². A smaller pilot wire (section 4.2) may be selected (min. 0.34
mm²). In accordance with NFPA 70 (NEC), only copper conduc-
tors must be used to connect the supply cable to the mains connector. If no wire end ferrules are used, strip the individual wires by max. 9 mm (observe the applicable clearances and creepage distances). Connect the connector to the roof-mounted fan from below.

Connection L N PE
+10 V
0…10 V/PWM
GND
Speed

Function/assignment

Power supply

Neutral conductor

PE conductor

Voltage output 10 V max. 1.1 A,

galvanically isolated, not short

circuit-protected

Control input 0…10 V or PWM,

galvanically isolated, impedance

100 k

GND connection of the control interface

Speed output Open Collector, 1

pulse per revolution, galvanically

isolated

Tab. 2: Connection designations

Rittal roof-mounted fan

4. Electrical connection

4.1 Connecting the power supply 4.1.5 Installing the power supply

SK 3139100/SK 3139110/ SK 3140100/SK 3140110

SK 3140140

max. 9 mm

L N PE / 1 2 3 4

SK 3140500/SK 3140510

Strain relief

Fig. 2: Connection diagrams

Fig. 3: Connector and strain relief

Rittal roof-mounted fan

4. Electrical connection
4.2 Installing the pilot wire
To control the EC roof-mounted fans via an external control unit (e.g. SK 3235440), types SK 31405xx have additional connections for the pilot wire.
Release and remove the jumper between the “+10 V” and “0 10 V/PWM” (terminals 1 and 2) connections.
Use a screwdriver with a 3.5 x 0.5 mm blade.
Open the terminal with the screwdriver and insert the connection cable as shown in the connection diagram.
Remove the screwdriver. To operate without a pilot wire, the jumper
should be left in the connection terminal. The unit will then be operated at maximum speed.

+10 V
0 10 V/ PWM

0 10 V/ PWM
GND

+10 V
0 10 V/ PWM
GND

0 10 V/ PWM

Fig. 4: Pilot wire

Max. speed (as delivered, with jumper between the “+10 V” and “0 10 V/PWM” connections.

Adjustable speed

Adjustable speed via PWM 1 10 kHz

Adjustable speed via potentiometer

Rittal roof-mounted fan

5. Commissioning
Once all the assembly and installation work is complete, switch on the power supply to the roof-mounted fan. The roof-mounted fan operates automatically, in other words, the fan will start up once the power has been switched on.
EC roof-mounted fans start running with a delay of approx. 15 sec.
6. Inspection and maintenance
Disconnect the electrical connection cable of the roof-mounted fan from the power supply.
The installed maintenance-free fan is mounted on ball bearings, protected against moisture and dust, and fitted with a temperature monitor.
The life expectancy is at least 50,000 operating hours (L10, 40 °C).
The roof-mounted fan is therefore largely maintenance-free. From time to time, the components may need to be cleaned
using a vacuum cleaner or compressed air if they become visibly dirty. Any stubborn, oily stains may be removed using a nonflammable detergent, such as degreaser. Never use flammable liquids for cleaning the unit.
Sequence of maintenance work Check the level of dirt: If necessary, vacuum the fan housing,
or clean with compressed air. Filter soiling: Replace the filter. Check the noise generation of the fan.

7. Storage and disposal

The roof-mounted fan must be stored at a temperature within the range specified in the technical data.
Disposal can be entrusted to the Rittal factory. Please call for further information.

Rittal roof-mounted fan

8. Technical specifications

Technical specifications

Unit

SK 3138000 SK 3139100 SK 3139110 SK 3140100 SK 3140110 SK 3140140 SK 3140500 SK 3140510

Electrical specifications Rated operating voltage Tolerance rated operating voltage

380…415,

without fan 220…240,

115, 1~,

220…240,

115, 1~,

3~, 50/60 220…240,

115, 1~,

motor

1~, 50/60

400…480, 1~, 50/60

3~, 60

±10 %

Rated current max. Power consumption Pre-fuse

0.23/0.27

0.56

0.43/0.56

1.2

0.17/0.2

1.51

51/62

99/130

138

90/120 98/130

129

112

Motor circuit-breaker

0.2…0.4

Rated insulation voltage (Ui)

300

Rated impulse withstand voltage (Uimp)

Control interface

included

Weight

Weight (net)

3.2

5.2

6.0

5.6

Air throughput (for performance diagrams, see Rittal homepage)

Air throughput, unimpeded air flow (without filter mats)
Air throughput, unimpeded air flow (with pleated filter IP 54)
Air throughput, unimpeded air flow (with chopped-fibre filter IP 55)

m³/h m³/h m³/h

500/525

525

873/965

965

863/942

1069

475/515

515

810/868

868

800/853

975

417/446

446

725/759

759

700/749

841

Air throughput (with filter mats and inlet filter)

1069 975 841

1 x SK 3243200 with chopped-fibre filter

m³/h

360/383

383

557/572

572

550/565

690

1 x SK 3243200 with pleated filter Fan Electromagnetic compatibility

m³/h

425/460

460

698/730

730

690/720

847

Radial/rotary

Radial/capacitor motor

current

Radial/EC motor

motor

Immunity to interference

For industrial areas to EN 61000-6-2

Emitted interference

For residential, business and commercial areas and small companies to EN 61000-6-3

Other

Noise level (with filter mats)

dB (A)

52/54

58/60

56/58

Noise level (without filter mats)

dB (A)

54/56

60/62

60/61

Operating temperature range

°C

-20…+55

Storage temperature range
Degree of protection (according to IEC 60529)
Degree of protection (NEMA)

°C

-40…+70

IP 21 (without filter and installation in accordance with section 3.3.1 or 3.3.5) IP 54 (with pleated filter and installation in accordance with section 3.3.2 or 3.3.3) IP 55 (with chopped-fibre filter and installation in accordance with section 3.3.4)
Type 1 (without filter and installation in accordance with section 3.3.2, 3.3.3 or 3.3.5) Type 12 (with pleated or chopped-fibre filter and installation in accordance with section 3.3.2 or 3.3.3)

Tab. 3: Technical specifications

Rittal roof-mounted fan

8. Technical specifications

133 H2
Fig. 5: Dimensions

400 400
258±2 258±2

H2 = 27.5 mm for SK 3138000
H2 = 34.6 mm for SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510

9. Accessories

Pleated filter
To fit Model No. SK 3138000, SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510 Tab. 4: Pleated filter Chopped-fibre filter
To fit Model No. SK 3138000, SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510 Tab. 5: Chopped-fibre filter

Filter class in accordance with

DIN EN 779

ISO 16890

ePM10 50 %

Filter class in accordance with

DIN EN 779

ISO 16890

ISO coarse 50 %

Packs of 12 pc(s).

Model No. SK 3174120

Packs of 12 pc(s).

Model No. SK 3174100

Rittal roof-mounted fan

9. Accessories

Enclosure internal thermostat To fit Model No. SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510
Tab. 6: Enclosure internal thermostat Digital enclosure internal temperature display and thermostat
To fit Model No. SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510 Tab. 7: Digital enclosure internal temperature display and thermostat Hygrostat To fit Model No. SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510 Tab. 8: Hygrostat Speed control To fit Model No. SK 3139100, SK 3139110, SK 3140100, SK 3140110 Tab. 9: Speed control Sensor for speed control To fit Model No. SK 3140500, SK 3140510 Tab. 10: Sensor for speed control Control unit for speed control To fit Model No. SK 3140500, SK 3140510 Tab. 11: Control unit for speed control Outlet filter To fit Model No. SK 3138000, SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510 Tab. 12: Outlet filter

Packs of 1 pc(s).
Packs of 1 pc(s).
Packs of 1 pc(s).
Packs of 1 pc(s).
Packs of 1 pc(s).
Packs of 1 pc(s).
Packs of 1 pc(s).

Model No. SK 3110000
Model No. SK 3114200
Model No. SK 3118000
Model No. SK 3120200
Model No. SK 3235450
Model No. SK 3235440
Model No. SK 3243200

Rittal roof-mounted fan

10. Warranty
The conditions named in the sales and delivery conditions of the associated Rittal agents and subsidiaries apply.

11. Customer services addresses

Headquarters Germany RITTAL GmbH & Co. KG Auf dem Stuetzelberg 35745 Herborn Germany Phone +49(0)2772 505-1855 Fax +49(0)2772 505-1850 E-mail: [email protected]
Service HUB USA RITTAL North America LLC 801 State Route 55 Dock 25 Urbana, OH 43078 Phone: +1 800 477 4000, option 3 E-mail: [email protected]

Service HUB China RITTAL Electro-Mechanical Technology Co. Ltd. No. 1658, Minyi Road Songjiang District Shanghai, 201612 Phone +86 21 5115 7799-213 Fax +86 21 5115 7788 E-mail: [email protected]
Service HUB India RITTAL India Pvt. Ltd. Nos. 23 & 24, KIADB Industrial Area Veerapura Doddaballapur-561 203 Bengaluru District Phone +91 (80) 22890792 Fax +91 (80) 7623 343 E-mail: [email protected]

Rittal roof-mounted fan

Notes

Rittal roof-mounted fan

Enclosures Power Distribution Climate Control IT Infrastructure Software & Services
You can find the contact details of all Rittal companies throughout the world here.
www.rittal.com/contact
RITTAL GmbH & Co. KG Auf dem Stuetzelberg · 35745 Herborn · Germany Phone +49 2772 505-0 E-mail: [email protected] · www.rittal.com

03.2022/D-0000-00000432-04-EN