TD-245 Datasheet PDF

SUBJECT: Technical Specifications for VariSTAR® MUS MOV Arrester Modules – IEEE® Station/IEC Class 2 Technical Data TD-245 APPLICATION These epoxy-fiberglass reinforced modules containing Metal Oxide Varistors (MOV) are for use as active elements in IEC Class 2 and IEEE® station class gapless surge arresters when applied in appropriately designed housing. Individual modules are sealed within a plastic bag and display the module number, see Figure 3 and Figure 4. Table 1 Suggested Usage & Class Ratings IEC Energy Energy IEC High Absorption Absorption Cantilever Cantilever Line Current Level Level Strength Strength Ur Uc Dicharge IEEE® kJ/kV of Uc kJ/kV of Uc 12 mm Stud 1 inch Stud (Rating) IN (MCOV) Class HCSD (1 impulse) (2 impulse)* Iref Vref Min (Nm) (Nm) 3-60 kV 10 kA 2.55-48 kV 2 100 kA 3.4 5.5 6.0 mA Uc x 1.24 1,130 1,695 * Rating based on two impulses with 1 minute between impulses. ** The dimensions refers to the thread size in the electrodes and to achieve the cantilever strength shown, the corresponding stud size must be used.