Product Description
CIRCA TELECOMC4B1S-300 BLACK SOLID STATE 300V 5-PIN FUSE WITH PTC NEWThe C3B1S & C3B1FS standard series of 5 pin solid state protector modules are designed to provide superior transient and power fault protection for most standard telephone line applications. The characteristics of the solid state protector are far superior to gas tube technology in speed of response to faults and are virtually immune to overshoot, aging, and failure due to repeated tripping within rated limits. The C4B1S & C4B1FS with PTC (positive temperature coefficient) versions include fast acting, self resetting current limiters. These are especially useful where extra protection against “sneak current” type faults is desirable. C3B1S, C3B1FS, C4B1S, C4B1FS SeriesOrdering InformationModel No. Order No. DC Voltage Breakover Pin1 Color2C3B1S 750013 300VDC gold blackC3B1FS 750017 240VDC gold blackC4B1S (PTC) 750015 300VDC gold blackC4B1FS (PTC) 750019 240VDC gold blackFeatures:longer lifespan than conventional gas tube and Benefits: carbon arrestorsreduced “pass through” of dangerous transientsexternal failsafe mechanism which permanently grounds module under sustained high current conditions safe mode operation in adverse situationsIntegrated Test Points reduced service callsUL & cUL listed documented safe performancesolid state technology provides nanosecond ISO 9002 Certified Manufacturer response time
