PT as Auxiliary Power Source (Select Models) | Elevate Power Distribution: Explore Premium Voltage Transformers | CIC

Indoor Low-Voltage Single-Phase Voltage Transformers (Potential Transformers), S-N Series / Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

Featured Products

Indoor Low-Voltage Single-Phase Voltage Transformers (Potential Transformers) | Enhance Safety and Performance with Superior Epoxy Insulators | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including Indoor Low-Voltage Single-Phase Voltage Transformers (Potential Transformers), current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 45 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 45 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

CIC has been offering customers high-capacity power capacitors since 1974, both with advanced technology and 50 years of experiences, CIC ensures each customer's demands are met.


Indoor Low-Voltage Single-Phase Voltage Transformers (Potential Transformers)

S-N Series

Single-phase voltage transformers, or potential transformers, for indoor locations of lower humidity. Class-A insulation material. Used with measuring or monitoring instruments, or as an auxiliary power source in the main panel or motor control panel. In the latter usage, this product can be referred to as a "control power transformer" (CPT), "control transformer" (CTR), "industrial control transformer," or a "machine tool transformer."

PT as Auxiliary Power Source (Select Models)

About the Product

S-N Series low-voltage single-phase voltage transformers, or potential transformers, intended for usage in indoor locations of lower humidity, are insulated with a Class-A insulation material. These VTs (PTs) can be used in conjuction with measuring or monitoring instruments, or as an auxiliary power source in the main panel or motor control panel.

Product Features

  • Standard: IEC, CNS, or IEEE
  • Suited to locations with lower humidity
  • Economical, compact and easy to install
  • Terminal covers included for prevention against electrical shock
Selection Table*

* Other standards and specifications available.
** Models with a burden rating higher than 500 VA can be used as an auxiliary power source (accuracy N/A), also called a control transformer (CTR) or control power transformer (CPT).

Available Models

S-5N, S-6N, S-7N, S-8N, S-9N, S-10N, S-11N, S-12N


Download Documents

Related Products
  • Control Power Transformers / Low-Voltage (LV) Voltage Transformers (Potential Transformers)
    Control Power Transformers / Low-Voltage (LV) Voltage Transformers (Potential Transformers)
    CPT Series

    Used as voltage transformers (VT) or control power transformers (CPT), these resin-cast (Class-A insulation) products are both economical and versatile. Note: Control power transformers (CPT) are also called "control transformers" (CTR), "industrial control transformers," or "machine tool transformers."


  • Low-Voltage Dry-Type Control Transformers
    Low-Voltage Dry-Type Control Transformers
    DSH Series

    DSH Series low-voltage control transformers are compact, economical, and suitable for use with machine tools or industrial equipment. This product is often referred to as an "industrial control transformer," "machine tool transformer," "control power transformer" (CPT), or "control transformer" (CTR).