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TROUBLESHOOTING

7. 

Problem

Cause

Solution

The power light does 
not light up.

No mains voltage.

Check the fuse of the mains socket.
Check whether the mains plug is correctly 
inserted.

Power supply unit is overloaded.

Remove the load and check the technical 
data.

The connected load is 
not running.

The wrong voltage was selected.

The wrong polarity was assigned.
The power supply unit is 
overloaded.

DISPOSAL

8. 

In order to preserve, protect and improve the quality of environment, protect human health and 
utilise natural resources prudently and rationally, the user should return unserviceable product to 
relevant facilities in accordance with statutory regulations.
The crossed-out wheeled bin indicates the product needs to be disposed separately and not as 
municipal waste.

TECHNICAL DATA

9. 

All models

Operating voltage:

100 - 240 V/AC, 50/60 Hz

Operating temperature:

0 ºC to +35 ºC, 20 % to 85 % RH

Storage temperature:

-20 ºC to +60 ºC, 10 % to 90 % RH

SPS12-12W-A

Output voltage:

3 / 4.5 / 5 / 6 / 7.5 / 9 / 12 V/DC

Output current:

1 A

Dimensions (W x H x D):

51 x 73 x 98 mm

Weight:

195 g

SPS12-24W-B

Output voltage:

3 / 4.5 / 5 / 6 / 7.5 / 9 / 12 V/DC

Output current:

2 A

Dimensions (W x H x D):

51 x 73 x 98 mm

Weight:

195 g

SPS24-24W-A

Output voltage:

9 / 12 / 13.5 / 15 / 18 / 20 / 24 V/DC

Output current:

1 A

Dimensions (W x H x D):

51 x 73 x 98 mm

Weight:

195 g

SPS24-48W-A

Output voltage:

9 / 12 / 13.5 / 15 / 18 / 20 / 24 V/DC

Output current:

2 A

Dimensions (W x H x D):

68 x 74 x 136 mm

Weight:

300 g

Plug

Outer diameter

Inner diameter

2.5 mm jack plug

3.5 mm jack plug

5.5 mm

2.1 mm

5.5 mm

2.5 mm

3.5 mm

1.35 mm

4 mm

1.7 mm

5.5 mm

1.5 mm

2.35 mm

0.75 mm

Applies only to item nos. 513002:
A set with USB plug adapters in three different designs is available under order no. 512771.
Make sure that the output voltage is set at 5 V/DC if you use one of the USB plug adapters.
A reversal of polarity is not possible with the USB plug adapters. The “+ -” sign must be on the same 
side with the connection socket of the cable and the USB plug adapter.

 OPERATING INSTRUCTIONS

Version 05/10

PLUG-IN POWER SUPPLY

Item No. 51 30 00

SPS12-12W-A

Item No. 51 30 02

SPS12-24W-B

Item No. 51 30 03

SPS24-24W-A

Item No. 51 30 04

SPS24-48W-A

INTENDED USE

1. 

This product is designed to connect and operate low-voltage consumer loads with an operating voltage of 
3 / 4.5 / 5 / 6 / 7.5 / 9 / 12 V/DC (Item no. 51 30 00 + 51 30 02) or 9 / 12 / 13.5 / 15 / 18 / 20 / 24 V/DC 
(Item no. 51 30 03 + 51 30 04). The consumer’s current consumption must not exceed a max. of 1 A 
(Item no. 51 30 00 + 51 30 03) or a max. of 2 A (Item no. 51 30 02 + 51 30 04). If this is exceeded, it can lead the 
product to overload. In case of overload, e.g. through short circuit or too high a continuous current consumption, 
the output is automatically lowered. Polarity of the connection (+ or - inside) is determined by the orientation of 
the low-voltage plug used. The product is designed for connection to a standard mains socket with a voltage of 
100 - 240 V/AC, 50/60 Hz.

This product fulfi ls European and national requirements related to electromagnetic compatibility (EMC). 
CE conformity has been verifi ed and the relevant statements and documents have been deposited at 
the manufacturer.

Unauthorised conversion and/or modifi cation of the device are inadmissible because of safety and approval 
reasons (CE). Any usage other than described above is not permitted and can damage the product and lead to 
associated risks such as short-circuit, fi re, electric shock, etc. Please read the operating instructions thoroughly 
and keep them for further reference.

CONTENT OF DELIVERY

2. 

Power supply

• 

8 x low-voltage plug

• 

7 x jumper

• 

Operating instructions

• 

SYMBOLS EXPLANATION

3. 

Only for use in dry interior environments

Insulation class 2 (double or reinforced insulation)

SAFETY INSTRUCTIONS

4. 

We do not assume liability for resulting damages to property or personal injury if the 
product has been abused in any way or damaged by improper use or failure to observe 
these operating instructions. The warranty/ guarantee will then expire!
The icon with exclamation mark indicates important information in the operating 
instructions. Carefully read the whole operating instructions before operating the device, 
otherwise there is risk of danger.

Persons / Product

The product is not a toy and should be kept out of reach of children!

• 

When used in conjunction with other devices, observe the operating instructions and safety notices of  

• 

connected devices.
The product must not be subjected to heavy mechanical stress.

• 

The product must not be exposed it to extreme temperatures, direct sunlight, intense vibration, or 

• 

dampness.
Take care not to damage or destroy its insulation.

• 

Never use the power supply unit as a charging device proper.

• 

When using power supply units you are not allowed to wear metallic or conductive pieces of jewelry, e.g. 

• 

chains, bracelets, rings or the like.
Power supply units are not allowed for use on human beings or animals.

• 

Hazardous voltages will be produced when the outputs of several power supply units are connected in 

• 

series (> 35 V/DC).
Do not cover the ventilation slots of power supply units. Such devices are cooled by convection in most 

• 

cases.
Do not operate unattended power supply units and loads connected to them. Take measures apt to protect 

• 

and secure the loads connected from the effects produced by the power supply units (e.g. excess voltages, 
failure of the power supply unit) and the effects and hazards originating from the loads themselves (e.g. 
inadmissibly high power input).
Power supply units may produce voltages exceeding 50 V/DC in a malfunction case. Such voltages cause 

• 

hazards, even if the specifi ed output voltages of the devices are lower.
When working under a voltage only use tools which are explicitly allowed for the purpose.

• 

The two-pole plug at the output of power supply units may not be modifi ed or rebuilt.

• 

Avoid installing bare metallic cables and contacts. Cover all bare points by suitable, diffi cultly infl ammable 

• 

insulating materials or take other measures, thus protecting such points from being directly contacted. 
Likewise, take measures apt to protect the electrically conducting elements of the loads connected from 
being directly contacted.
If there is reason to believe that safe operation has become impossible put the power supply unit out of 

• 

operation and secure it against any unintended operation. Safe operation must be presumed to be no 
longer possible, if

the unit exhibits visible damage

 -

the unit does not operate any longer

 -

the unit was stored under unfavourable conditions for a long period of time or

 -

the unit was exposed to extraordinary stress caused by transport.

 -

This product is not authorised for use in damp rooms or outdoors or under adverse ambient conditions. 

• 

Adverse ambient conditions are:

Moisture or excessively high humidity of air

 -

Dust and infl ammable gases, vapours or solvents

 -

Heavy vibrations.

 -

In commercial and industrial facilities, the regulations for the prevention of accidents as laid down by the 

• 

professional trade association for electrical equipment and devices need to be observed.
Measuring devices used at schools, training facilities, do-it-yourself and hobby workshops should not be 

• 

handled unless supervised by trained, responsible personnel. 
Never turn on the device immediately after it has been brought from a cold into a warm room. Condensation 

• 

water that forms might destroy your device. Leave the device switched off and wait until it has reached 
room temperature.

Miscellaneous

Repair works must only be carried out by a specialist/ specialist workshop.

• 

If you have queries about handling the device, that are not answered in this operating instruction, our 

• 

technical support is available under the following address and telephone number: Voltcraft

®

, 92242 

Hirschau, Lindenweg 15, Germany, phone 0180 / 586 582 7

OPERATION

5. 

The surface of the casing will heat up intensely during prolonged operation at a rated 

• 

load. Attention: Danger of burns ! Therefore, take great care to suffi ciently ventilate 
the power supply unit. Never operate it when partially or fully covered. This will help 
avoid any damage.
When connecting a load always take care not to connect it as long as it is switched 

• 

on. A load in an ON condition, when being connected to the output terminals of the 
power supply unit, can cause sparks to form on the supply terminals. This, in turn, can 
damage the supply jacks or the cables connected and/or their terminals.
If you do not need the plug-in mains adapter disconnect it from the mains.

• 

Select a voltage jumpers that is suitable for the output voltage of the consumer load. The voltage values 

1. 

are printed on the jumpers. 
Plug the jumper into the voltage selector socket on the side of the power supply unit. Only one orientation 

2. 

is possible. The jumper must be fl ush with the power supply unit housing.

Under no circumstance replace the voltage jumper during operation. This can damage any 
load that is connected (a radio or walkman or the like), on one hand, and destroy the power 
supply unit by contact-breaking sparks on the switching contacts, on the other.

For easy assignment of polarity, the plugs and the connector socket (cable end) are labelled.  

3. 

inner: +
outer: -

inner: -
outer: +

The front end is considered to be „inside“ for jack connectors.

Now select one of the eight low-voltage plugs which fi ts the consumer load at hand. Then plug the low-

4. 

voltage plug into the connector socket at the end of the output cable, observing the required polarity.
Connect the power supply to a standard mains socket.

5. 

The red LED on the top of the power supply unit lights up and indicates that the power supply unit is ready 

6. 

for use.
Connect the low-voltage plug to the consumer load and only then switch the consumer on.

7. 

Turn the consumer off before disconnecting it from the power supply unit.

8. 

MAINTENANCE AND CLEANING

6. 

Disconnect the device from the mains voltage and from the connected consumer load before starting to 

• 

clean the device.
The power supply unit does not require any maintenance except that the surface of its casing needs 

• 

cleaning occasionally. However, check the mains plug for the integrity of its insulation at certain intervals. 
Do not open the device or make unauthorized modifi cations to the circuits inside the device because this 

• 

will invalidate the guarantee claim. 
Use a clean, non-fl uffy, antistatic, and dry cloth to clear the device of impurities.

• 

Do not use carbon-containing cleaning agents, petrol, alcohols or similar agents. This can 
attack the surface of the device. Furthermore, the fumes are a health hazard and explosive. 
Moreover, you should not use sharp-edged tools, screw-drivers or metal brushes or 
similar objects for cleaning.

These operating instructions are published by Voltcraft®, 
Lindenweg 15, D-92242 Hirschau/ Germany, Phone +49 180 586 582 7.
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfi lming, or the 
capture in electronic data processing systems require the prior written approval by the editor. Reprinting, 
also in part, is prohibited. 
The operating instructions refl ect the current technical specifi cations at time of print. 
We reserve the right to change the technical or physical specifi cations.
© Copyright 2010 by Voltcraft®.

*02_05/10_02-SB

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