Current Transformer Cabinets and Terminal Enclosures
Current transformer cabinets are essential for safely housing current transformers that convert high primary currents into smaller, measurable secondary currents used for metering and protection. Built to meet UL Type 1 and NEMA Type 3R standards, these cabinets protect against accidental contact, environmental factors, and electrical hazards. Most Hoffman CT cabinets are constructed from aluminum, galvanized steel, or stainless steel to ensure durability, corrosion resistance, and long service life.
Terminal enclosures, similar in function to junction boxes, provide protected environments for wiring connections. Designed to safeguard terminals against dust, moisture, and accidental contact, these enclosures are available in 3- or 4-wire configurations supporting up to 440 A. They meet UL Type 1, NEMA Type 3R, and UL 1773 standards, the latter specifically governing terminal enclosures. Common materials include aluminum and steel, both chosen for their strength and electrical safety properties.
FAQs
Q: What are current transformer cabinets used for?
CT cabinets house current transformers that step down high primary currents to lower, measurable secondary currents for monitoring and protection in electrical systems.
Q: What standards do Hoffman CT cabinets meet?
Hoffman CT cabinets meet UL Type 1 and NEMA Type 3R standards, ensuring safety and durability for both indoor and outdoor installations.
Q: What materials are commonly used to make CT cabinets?
Most CT cabinets are constructed from aluminum, galvanized steel, or stainless steel for corrosion resistance and long-term reliability.
Q: How do terminal enclosures differ from junction boxes?
While similar in function, terminal enclosures are specifically designed to protect electrical terminals and connections, often featuring 3- or 4-wire configurations and higher current capacities.
Q: What is UL 1773 certification?
UL 1773 is a safety standard specifically governing terminal enclosures, ensuring they meet electrical protection and performance requirements for industrial and commercial use.
Why Buy Current Transformer Cabinets from RSP Supply
RSP Supply offers a wide selection of current transformer cabinets and terminal enclosures built to meet the highest safety and performance standards. With expert support RSP Supply ensures you get the right enclosure for reliable, long-term electrical protection.