Special Design, for Special Uses

Equipped for Special Tasks and Conditions

Restricted installation conditions, harsh environmental conditions, or special input or output voltages – whatever the special conditions, these standard devices deliver a reliable, efficient power supply even for exceptional requirements.


You can find additional information and ordering options for individual Special Design, for Special Uses here.

The SITOP Selection Tool also supports you in selecting your product.

PSU100D - Low-cost power supply for wall mounting

PSU100D - Low-cost power supply for wall mounting

The attractively priced PSU100D regulated power supplies can be screwed directly onto the wall. The rugged aluminum enclosure with IP20 degree of protection can be variably mounted in different positions, even in applications with high temperatures and high shock and vibration requirements. The wide-range input enables connectivity to the most diverse supply networks worldwide and ensures reliable 12 V or 24 V supply even if there are large voltage fluctuations.

 SITOP PSU100P 24 V/ 5 A and 8 A

SITOP PSU100P 24 V/ 5 A and 8 A
Rugged 1-phase power supply with IP67

The SITOP PSU100P power supplies for wall mounting with their rugged design in IP 67 class of protection are ideal for distributed applications outside the control cabinet. The automatic switching of the input voltage of 1-phase devices and the temperature range of -25° to +60°C means they can be used worldwide. The high efficiency of up to 93% keeps the heat development and the inherent energy consumption low. The operation indicator on the unit uses LEDs (green = "24 V DC OK", flashing red = overload). A floating signal contact provides the status of the output voltage and enables easy system integration.

SITOP PSU300B 12 V/ 20 A and 24 V/ 30 A for battery charging

SITOP PSU300B 12 V/ 20 A, 24 V/ 17 A and 24 V/ 30 A for battery charging

The power supplies are optimally suited for battery charging because of their constant-current characteristic. For other applications the output characteristic can also be switched to latched shutdown. The three-phase wide-range input allows world-wide deployment. The compact design takes up little space on the mounting rail and requires no gaps for mounting.

Three-phase power supply SITOP PSU300E 24 V/ 5 A

  • Sturdy metal enclosure is only 42 mm wide and does not require mounting distances on the sides to other devices

  • Low heat generation due to the high efficiency level of 90%.

  • The wide input range of 320 V to 550 V 3AC allows for mains buffering times of 50 ms, thus enabling use in unstable threephase systems

  • Removable plug-in terminals simplify the connec­tion to AC and DC.

  • An LED and an integrated “DC 24 V OK” sig­naling contact indicate the sta­tus of the output voltage.

  • Output voltage can be adjusted from 24 V to 29 V.

  • Wide temperature range from 0 to +60 °C

DC/DC converter for 12 from 24 volts

DC/DC converter 12 V/ 2.5 A

The narrow rail-mounted device supplies 12 V/ 2.5 A and is connected to 24 V DC, e.g. to the output of a SITOP power supply unit. With an additional SITOP DC UPS, uninterruptible 12 V direct voltage can also be generated.

DC/DC converter 24 V/2 A

DC/DC converters 24 V/2 A

With an input range from 16.8 V to 138 V DC for supply 24 DC from battery and DC systems.

Unlimited diversity thanks to variable output

Unlimited diversity thanks to variable output

The innovative circuiting concept offers flexible setting of the output voltage betweeen 3 and 52 V. This means special voltages can also be handled reliably by a standard device.

Electrical powering of the switching cabinet

Electrical powering of the switching cabinet

The industrial, DIN rail device has two 15 V outputs. For electronic devices, for instance, which are powered with ±15 Volt.

Flat design

Flat design

The compact metal housing of the power supplies 24 V/5 A and 10 A can be accommodated where only limited installation depth is available, even in masked machine supporting frames or hinged frames.

For extremely harsh environments - SITOP PSU300P

30 V power supply units for the AS-Interface

The power supply units supply the AS-i network and the connected slaves from a central point. They are an integral part of an AS-i network and, in conjunction with the data decoupling, enable the simultaneous transmission of data and energy on the same two-wire cable.