Safety transformers
- Safety transformers in accordance with IEC 61558 for industrial electronics
- Safety transformers for safety extra-low voltage and regulated circuits
- For equipment manufacturing, automation, medical technology, and industrial electronics
- Fast delivery, duty-free shipping from a German warehouse
- Safety transformers from suppliers in Switzerland and Germany
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Safety transformers in accordance with IEC 61558 for industrial electronics
As a technical supplier for industrial applications, ROTIMA provides safety transformers in which insulation, secondary voltage, and thermal load are precisely engineered. Our safety transformer supplies isolated circuits with safety extra-low voltage and reduces the risk posed by dangerous contact voltages.
For applications in accordance with DIN EN IEC 61558-2-6 and VDE 0570-2-6, safe electrical isolation between the primary and secondary sides is essential. Our engineers evaluate the connection type, creepage distances, temperature class, clearances, winding configuration, installation space, and behavior under overload conditions. However, the voltage and power rating are also critical factors.
Depending on the application, a PELV circuit or an SELV circuit is designed, whereby limit values such as an output voltage of 50 V AC / 120 V DC, an output voltage of 50 V, frequency 500 Hz, input voltage 1000 V, single-phase transformers 10 kVA, and three-phase transformers 16 kVA are relevant for technical classification. Our engineering team will assist you from the very beginning in selecting a suitable safety transformer for series-produced devices, control cabinets, or assemblies.
For applications in accordance with DIN EN IEC 61558-2-6 and VDE 0570-2-6, safe electrical isolation between the primary and secondary sides is essential. Our engineers evaluate the connection type, creepage distances, temperature class, clearances, winding configuration, installation space, and behavior under overload conditions. However, the voltage and power rating are also critical factors.
Depending on the application, a PELV circuit or an SELV circuit is designed, whereby limit values such as an output voltage of 50 V AC / 120 V DC, an output voltage of 50 V, frequency 500 Hz, input voltage 1000 V, single-phase transformers 10 kVA, and three-phase transformers 16 kVA are relevant for technical classification. Our engineering team will assist you from the very beginning in selecting a suitable safety transformer for series-produced devices, control cabinets, or assemblies.
Safety transformers, when low voltage alone is not safe enough
UI Safety Transformers for Compact Assemblies
Our UI transformer designs are particularly well-suited for devices with limited installation space and fixed PCB interfaces. Our engineering team evaluates the number of pins, pitch, heat generation, and copper losses to ensure that the safety transformer remains electrically stable during operation and can be seamlessly integrated mechanically.
EI Safety Transformers for Rugged Industrial Applications
Our EI-core transformer designs are frequently used when simple installation, availability, and robust electrical interfaces are required. ROTIMA offers variants in open or encapsulated designs, with plug-in tabs, pins, solder lugs, mounting brackets, or terminals. Test voltage, winding insulation, and thermal reserve are also important factors here.
M Safety Transformers for Low-Leakage Design
Our M-series transformer designs are in high demand when it is necessary to reduce stray fields and control the path of the windings. For measuring instruments, compact control systems, and sensitive electronics, a low-stray design may be the best choice. We evaluate power loss, the magnetic circuit, and the connection layout together.
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Safety transformers
When it comes to safety transformers, standards are a more decisive factor than price
An isolation transformer must be suitable for the installation location, the electrical circuit, and the protective measures in place; therefore, it is not a standard, interchangeable component. For this reason, our technical evaluation begins with determining whether double or reinforced insulation is required and whether our safety transformer should be designed to be short-circuit-proof or conditionally short-circuit-proof for your application.
We review the applicable standards for all our transformers on a project-by-project basis. However, the DIN EN IEC 61558-2-6 standard is the key determinant for our safety transformers. DIN/VDE 0570/2-6 is also frequently cited in existing documentation and technical specifications. Additional requirements according to EN 60601 may also be relevant for medical applications, for example, for power supplies for patient monitoring systems or for IT systems used in medical settings.
We are happy to assist with clarifying the following design data:
We review the applicable standards for all our transformers on a project-by-project basis. However, the DIN EN IEC 61558-2-6 standard is the key determinant for our safety transformers. DIN/VDE 0570/2-6 is also frequently cited in existing documentation and technical specifications. Additional requirements according to EN 60601 may also be relevant for medical applications, for example, for power supplies for patient monitoring systems or for IT systems used in medical settings.
We are happy to assist with clarifying the following design data:
- Primary voltage and secondary voltage
- Frequency range and voltage drop
- Open, encapsulated, or tropical-insulated design
- IP54, IP65, IP68, or customer-specific protection requirements
- Temperature class A, B, F, or H
- Insulation voltage and testing requirements
- THT, terminal, solder connection, or screw mounting
- Power in VA or W
- CE, ENEC, VDE, UL, RoHS, and REACH requirements
Data Sheets for UI Transformers
Data Sheets for M-Transformers
Data Sheets for EI Transformers
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Safety transformers
Anyone who disconnects safety transformers incorrectly is taking on the risk of failure
Isolation transformers and safety transformers share a similar technical basis, but they do not serve the same purpose. While an isolation transformer is primarily used for galvanic isolation and protective separation, a safety transformer additionally limits the output voltage for safe low-voltage circuits; this voltage must be selected appropriately for the protective measure.
Problems arise during operation if the secondary voltage, fuse rating, thermal load, mounting clearances, and environmental conditions are not properly matched. This is because it leads to increased temperature, longer current paths, greater voltage drop, or higher mechanical stress. Before making a selection, ROTIMA checks all these points to ensure that your transformer does not fail until it reaches the test bench.
Our project engineers require the following specific information for the technical inquiry:
Problems arise during operation if the secondary voltage, fuse rating, thermal load, mounting clearances, and environmental conditions are not properly matched. This is because it leads to increased temperature, longer current paths, greater voltage drop, or higher mechanical stress. Before making a selection, ROTIMA checks all these points to ensure that your transformer does not fail until it reaches the test bench.
Our project engineers require the following specific information for the technical inquiry:
- Desired delivery format: samples, production runs, or replacement parts
- Required standards and approvals
- Application and industry
- Ambient temperature and humidity
- Permissible installation space and mounting type
- Mains voltage and load profile
- Desired secondary voltage
- Required Power and Operating Time
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?
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