Description
Features
UL1449 4th ed. surge suppressor with thermal protection designed to open in the event of over heating due to an abnormal over-voltage or temporary overvoltage (TOV) and will interrupt any abnormal current that may be encountered.
• Compact Size
• UL1449 4th approved
• Quick thermal response and perfect circuit cutoff function due to special thermal disconnector design with intemal arc extinguishing device (Patent)
• Wide operating temperature range and high reliability
• Low leakage current
• Application in the AC mains, service entrance, and heavy industrial etc
• SCCR up to 100 KAtms without external fuse or CB
• Fire Proof and explosion proof polycarbonate glass-fiber reinforced enclosure with matching mounting connector
• Sealed unit except for mounting connector wiring opening
• For less inductance, #10 AWG tinned copper wire
• MCOV 150
Environmental Specifications
UL1449 4th ed. surge suppressor with thermal protection designed to open in the event of over heating due to an abnormal over-voltage or temporary overvoltage (TOV) and will interrupt any abnormal current that may be encountered.
Type 1 SPD
VOLTAGE:
277/480 VRMS, 3 WIRE & GROUND
THREE PHASE, 50/60HZ, MCOV 320V
VOLTAGE PROTECTION RATING – VPR
L-L 2000V, L-G 2000
NOMINAL DISCHARGE CURRENT (In) 10 KA
SHORT CIRCUIT CURRENT RATING
SCCR 100 KA
TYPE 3R ENCLOSURE
End of Life Failure Mode
While in overvoltage induced thermal runaway, apply 7 KA at operating voltage. Surge arrester must fail safe without faulting the AC line. No arcing allowed..
Surge arrester fails safe-surge element punctures, safety fuse opens, LED turns off, no fire, slight puff of smoke out connector wiring opening. AC line not faulted. No arcing.
Specification | Value |
Enclosure Flammability
(550° C or greater) | 960° C, UL 94 V1 |
Ultra-Violet Resistance | Good UV stability in tropical conditions |
Thermal Withstand | 80° C |
Salt-Fog Corrosion Resistance | Chemical resistance |
Enclosure Dimensions | 5.12” X 5.12” X 3.90” |
Recommended “Hole Size” for Mounting Connector | 1.12” |