Rittal DK 7856.170 Assembly And Operating Instructions Manual

Power System Modul
Overvoltage protection
DK 7856.170

Assembly and operating instructions

EN

Contents

Contents

1 Notes on documentation 2

2 Safety instructions 3

3 Product description 4

3.1 Function 4

3.2 Requirement class 4

3.3 Proper use, foreseeable misuse 4

4 Transportation and handling 5

4.1 Transport 5

4.2 Unpacking 5

5 Installation and siting 5

5.1 Installation site requirements 5

5.2 Installation 5

6 Technical specifications 6

7 Accessories 6

8 Customer service addresses 6

PSM overvoltage protection 1

1 Notes on documentation

1 Notes on documentation

1.1 CE labelling

Rittal GmbH & Co. KG confirms the conformance of
the PSM overvoltage protection to the EC EMC
directive 2004/108/EC. An appropriate declaration
of conformity has been prepared. It can be
provided on request.

1.2 Storing the documents

The installation and operating instructions as well
as all applicable documents are integral
components of the product. They must be passed
to those persons who are engaged with the unit
and must always be available and on hand for the
operating and maintenance personnel.

1.3 Symbols in these operating instructions

The following symbols are used in this
documentation:

Note!
Useful information and special

features.

Caution!

1.4 Other applicable documents

Installation guide and short operating instructions of
the following products (optional, depending on the
application):

• Rittal PSM measuring busbars

• Active PSM modules

A dangerous situation for which
the failure to comply with this note
can cause (minor) injuries or
machine damage.

(Model no. 7856.003, 7856.005, 7856.006,

7856.008, 7856.010, 7856.015, 7856.016,

7856.020, 7856.043, 7856.321, 7856.323)

(Model no. 7859.212, 7859.222, 7859.232,

7859.215, 7859.225, 7859.235, 7856.201,

7856.203, 7856.204, 7200.001)

EN

2 PSM overvoltage protection

EN

2 Safety instructions

2 Safety instructions

2.1 General safety instructions

Please observe the subsequent general safety
instructions for the installation and operation of the
system:

• Assembly and installation of the PSM

overvoltage protection, in particular for wiring
with mains power, may be performed only by
a trained electrician.

• Please observe the valid regulations for the

electrical installation of the country in which
the PSM overvoltage protection is installed
and operated, and the national regulations
for accident prevention. Please also observe
any company-internal regulations, such as
work, operating and safety regulations.

• Use only original Rittal products or products

recommended by Rittal in conjunction with
the PSM overvoltage protection.

• Please do not make any changes to the PSM

overvoltage protection that are not described
in this manual or in the associated manuals.

• The operational safety of the PSM

overvoltage protection is guaranteed only for
its approved use. The technical data and
limit values stated in the technical
specifications may not be exceeded under
any circumstances. In particular, this applies
to the specified ambient temperature range
and IP degree of protection.

• The PSM overvoltage protection must not be

opened. The unit does not contain any parts
that need servicing.

• The operation of the system in direct contact

with water, aggressive materials or in­flammable gases and vapours is prohibited.

• Other than these general safety instructions,

ensure you also observe the specific safety
notes when the tasks described in the
following sections are performed.

Caution!

Rittal recommends the use of the pre­assembled connection leads available
as accessory.
Ensure the correct positioning of the

2.2 Service and technical staff

• The mounting, installation, commissioning,

• Only properly instructed personnel may carry

connection plug when making the
connection!

There is the danger of electrical shock
and damage to the connected
consumers in case of incorrect
connection.

The connection plugs that accompany
the PSM busbars may only be
installed by trained electricians!

maintenance and repair of this unit may be
performed only by qualified mechanical and
electro-technical trained personnel.

out service on a unit while in operation.

PSM overvoltage protection 3

3 Product description

3 Product description

3.1 Function

The PSM overvoltage protection is provided in
3-phase form.

Each of the two 3-phase infeeds of the PSM
busbars requires its own overvoltage protection.

Existing systems can be upgraded with the
overvoltage protection.

It is equipped with a failure display (red control
LED). The pre-assembled connection cable is used
to feed the PSM busbar. The connection to the
busbar is made using a 5-pin plug-in terminal strip.

A connection cable type DK 7856.025 or the
connection plug enclosed with the PSM busbar is
required for the infeed.

The permanently green-illuminated LED
indicates that the overvoltage protection is
active.

An illuminating red LED indicates clearly the
failure of the overvoltage-protection unit!

Note!
The red LED indicates the initiation

of the overvoltage protection. The
connected units continue to be
provided with power but are not
protected.
The overvoltage protection must be
replaced as soon as possible.

of the user or third parties, or result in possible
impairment of the system and other property.

The unit should thus only be used properly and in
technically sound condition. Any malfunctions
which impair safety should be rectified immediately!
Follow the operating instructions!

The intended use also includes the observance of
the provided documentation and fulfilling the
inspection and maintenance conditions.

Rittal GmbH & Co. KG is not responsible for any
damage which may result from failure to comply
with the provided documentation. This also applies
to failure to comply with the valid documentation for
the accessories used.

EN

3.2 Requirement class

The overvoltage protection is designed for
requirement class D (portable use on power
sockets).

3.3 Proper use, foreseeable misuse

The PSM overvoltage protection is used to protect
against overvoltage on all three phases.

The overvoltage protection is provided for the
overvoltage category ll in accordance with DIN
VDE 0110 Part 1.

It is designed for operation in data centres (IT
environment).

The unit is state of the art and built according to
recognised safety regulations. Nevertheless,
improper use can present a hazard to life and limb

4 PSM overvoltage protection

EN

4 Transportation and handling

4 Transportation and handling

4.1 Transport

The unit is delivered in a carton.

Note!

After unpacking, the packaging
materials must be disposed of
in an environmentally friendly

4.2 Unpacking

• Remove the unit's packaging materials.

• Check the unit for any damage that has

occurred during transport.

• Remove the unit from the packaging.

way. They can consist of the
following materials:
Polyethylene film (PE film),
cardboard.

Note!

After unpacking, the packaging
materials must be disposed of
in an environmentally friendly
way. They can consist of the
following materials:
Polyethylene film (PE film),
cardboard.

Note!

Damage and other faults, e.g.
incomplete delivery, should
immediately be reported to the
shipping company and to Rittal
GmbH & Co. KG in writing.

5 Installation and siting

5.1 Installation site requirements

To ensure the correct function of the unit, the
conditions for the installation site of the unit
specified in section 6 "Technical specifications"
must be observed.

Electromagnetic interference

• Interfering electrical installations (high

frequency) should be avoided.

5.2 Installation

The installation is made in accordance with the
plug-and-play principle.

The preassembled plug must be inserted in the
appropriate socket of the PSM busbar. The
connection to the infeed is made using the cable
DK 7856.025 (available as accessory) or the
connection plug included with the PSM busbar.

Caution!

Rittal recommends the use of the pre­assembled connection cables
available as accessory.

Ensure the correct positioning of the
connection plug when making the
connection!
There is the danger of electrical shock
and damage to the connected
consumers in case of incorrect
connection.
The connection plugs that accompany
the PSM busbars may only be
installed by trained electricians!

PSM overvoltage protection 5

6 Technical specifications

6 Technical specifications

Technical
specifications

Voltage range 110 V – 400 V,

Max. current per infeed 3x16 A
Cable type H07RN-F 5G 2.5 mm
Ambient operating

temperature
Ambient operating

humidity

Degree of protection IP20

Tab. 1: Technical specifications

PSM overvoltage
protection

50/60 Hz
3-phase

2

+5 °C to +45 °C

5% to 95% relative
humidity, non­condensing

7 Accessories

The accessories programme includes a connection
cable to connect the PSM overvoltage protection to
the power supply. A detailed listing of the complete
accessories programme is available at the Internet
address specified in section 8 "Customer service
addresses".

Accessories Model No.

3-phase connection cable
with CEE plugs

(IEC 60 309), length 3 m

Tab. 2: Accessories

7856.025

EN

8 Customer service addresses

For technical questions, please contact:
Tel.: [phone]
E-mail: [e-mail]
Homepage: www.rittal.de

For complaints or service requests, please contact:
Tel.: [phone]
E-mail: [e-mail]

6 PSM overvoltage protection

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1. Aufl. 02.2013 / Zeichn.-Nr. A3102907IT74

RITTAL GmbH & Co. KG
Postfach 1662 · D-35726 Herborn
Phone [phone] · Fax [phone]
E-mail: [e-mail] · www.rittal.com