P1200S Teccor Electronics, P1200S Datasheet - Page 148

• Manufacturer Part Number: P1200S
• Description: solid state crowbar devices
• Manufacturer: Teccor Electronics

UL 497
UL 497
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UL 497 Series of Safety Standards
The UL 497 series is a family of three safety standards that provides requirements for
protection devices used in low-voltage circuits.
• UL 497 addresses requirements for primary protectors used in paired communications
• UL 497A covers secondary protectors for use in single or multiple pair-type
• UL 497B addresses protectors used in data communication and fire alarm circuits.
• UL 497C addresses protectors for coaxial circuits.
The focus of UL 497 is to ensure that paired communication circuit protectors do not
become a fire or safety hazard. The requirements in UL 497 cover any protector that is
designed for paired communications circuits and is employed in accordance with Article 800
of the National Electric Code. The protectors covered in UL 497 include solid state primary
and station protectors. These circuit protectors are intended to protect equipment, wiring,
and service personnel against the effects of excessive voltage potential and currents in the
telephone lines caused by lightning, power cross, power induction, and rises in Ground
potential.
UL 497 Construction and Performance Requirements
The “Construction” section covers the following requirements:
• General
• Enclosures
• Protection Against Corrosion
• Field-wiring Connections
• Components
• Spacing
The “Performance” section covers the following requirements:
• General
• Line Fuse Test
• Instrument Fuse Test
• Arrestor Test
• Polymeric Material Test
• Rubber Materials Test
• Corrosion Test, Outdoor Use Protector
• Jarring Test
• Water Spray Test
• Drop Test
• Cover Replacement Test
• Strain Relief Test
• Replacement Arrestors Installation Test
• Appliqué Assemblies Installation Test
• Dielectric Voltage-withstand Test
• Manufacturing and Production Tests
• Marking
circuits.
communications circuits.
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