October 6, 2011
WORLD PRODUCTS, LLC ”RoHS CERTIFIED THERMALLY PROTECTED VARISTORS” (TVZ SERIES) GAIN UL/CUL 1449 3rd EDITION RECOGNITION.
14MM DISK SIZE – ALL VALUES.
18MM DISK SIZE – ALL VALUES UP TO 420VAC (HIGHER VOLTAGE TYPES PENDING).
20MM DISK SIZE – ALL VALUES UP TO 420VAC (HIGHER VOLTAGE TYPES PENDING).
25MM DISK SIZE (ROUND VERSION) – ALL VALUES UP TO 420VAC (HIGHER VOLTAGE
TYPES PENDING).
25MM DISK SIZE (SQUARE TYPE) – ALL VALUES
34MM DISK SIZE – ALL VALUED UP TO 420VAC (HIGHER VOLTAGE TYPES PENDING).
We further anticipate having “VDE ANNEX Q CERTIFICATION” for the above “TVZ” types by first quarter 2012.
These approvals represent a significant break-through and increased promotional opportunities for this rapidly emerging technology. Please make your customers aware of these fully approved products and contact World Products, LLC if you have any questions.
The TVZ series is a two or three-leaded Thermally Protected Metal Oxide Varistor
One lead of the TVZ varistor is connected to a thermal fuse which is designed to open when the varistor is under sustained abnormal over-voltage conditions. The TVZ series is designed to meet the abnormal over-voltage requirements of UL 1449 3rd edition, Section 39.4.
TVZ has a thermal fuse integrated with an MOV disk that responds to the MOV temperature and disconnects the MOV from the line, should the temperature or voltage exceed a certain level.