UL/CSA approved transformers

Below you will find our single-phase and three-phase transformer series with UL/CSA approval. The single-phase BS series is provided with fixed voltage combinations with an input voltage of 230 V or 400 V with ±5% tap and a fixed output voltage of 230 V or 24 V. Fixed voltage combinations are also available for the single-phase BSUS/BSUL series.

Freely selectable voltage combinations are possible in all other single-phase and three-phase series according to customer requirements. All transformers can also be produced by us with housing and accessories and UL/CSA approval.

UL/CSA APPROVED TRANSFORMERS – OVERVIEW OF THE PRODUCT RANGE

BS UL-CSA
Control transformers, cost-optimized
50 – 3,000 VA

BE UL-CSA
Single-phase transformers, cost-optimized, customer-specific versions
25 – 3,000 VA

BEV UL-CSA
Single-phase transformer motors, low-loss, customized versions
25 – 3,000 VA

BUF UL-CSA
Single-phase transformer motors, cost-optimized, customer-specific versions
250 VA – 25 KVA

BDF UL-CSA
Cost-optimized, customer-specific designs
50 VA – 40kVA

BDVA UL-CSA
Three-phase transformers, low-loss, customized versions
50 VA – 630 kVA

BUVA UL-CSA
Eiphase transformers, low-loss, customized versions
250 VA – 400 KVA

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Our UL/CSA approvals at a glance

Electrical insulation system Standard: UL1446/Category Code OBJY2/OBJY8 File: E475312
This approval is required as the basis for full approval. All materials used in the transformers are tested for chemical compatibility under the influence of temperature in a long-term test. The result is an approval for a corresponding insulation system in relation to a temperature class.

Full approval Standard: UL5085/Category Code XPTQ2/XPTQ8 File: E483928
With this approval, all required transformers are tested for their electrical values, heating and the materials used. Transformers with this approval can be installed in control cabinets or other systems without any further concerns. No additional tests are required by UL.

Approval for switchgear Standard: UL508A/Category Code NITW7/NITW8 File: E469721
This approval relates to enclosures and switch cabinets for the US and Canadian markets. All materials used must be approved accordingly. In addition, compliance with the required clearance and creepage distances and various labeling specifications are required. If the enclosure meets all requirements, it is provided with an approval sticker and serial number
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Do you have any questions or need technical information? Get in touch with us. For specific inquiries, you can also use our detailed inquiry form.