DB Series - High Energy Industrial Varistor Series
DataSheet:Varistors DA and DB Datasheet
The DA and DB Series transient surge suppressors are heavy-duty industrial metal-oxide varistors designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, and transportation equipment.
Features:- These UL-recognized varistors have identical ratings and specifications but differ in case construction to provide flexibility in equipment designs.
- DA series devices feature rigid terminals to insure secure wire contacts.
- Both the DA and DB series feature improved creep and strike distance capability to minimize breakdown along the package surface design that provides complete electrical isolation of the disc subassembly.
- High energy absorption capability WTM up to 1050J
- Wide operating voltage range VM(AC)RMS 130V to 750V
- Screw terminals (DA Series),quick connect push-on connectors (DB Series)
- Case design provides complete electrical isolation of disc subassembly
- 40mm diameter disc
- No derating up to 85ºC ambient
- RoHS compliant
Ordering Information
| Catalog # | Size | VMAX AC (V) | VMAX DC (V) | WTM (J) | (ITM 1xAmps (A) | VNDC(V) | VNDC MIN(V) | VNDC MAX (V) | Vc (V) |
|---|---|---|---|---|---|---|---|---|---|
| V131DB40 | 40mm | 130 | 175 | 270 | 40000 | 200 | 184 | 228 | 345 |
| V151DB40 | 40mm | 150 | 200 | 300 | 40000 | 240 | 212 | 268 | 405 |
| V251DB40 | 40mm | 250 | 330 | 370 | 40000 | 390 | 354 | 429 | 650 |
| V271DB40 | 40mm | 275 | 369 | 400 | 40000 | 430 | 389 | 473 | 730 |
| V321DB40 | 40mm | 320 | 420 | 460 | 40000 | 510 | 462 | 561 | 830 |
| V421DB40 | 40mm | 420 | 560 | 600 | 40000 | 680 | 610 | 748 | 1130 |
| V481DB40 | 40mm | 480 | 640 | 650 | 40000 | 750 | 670 | 825 | 1240 |
| V511DB40 | 40mm | 510 | 675 | 700 | 40000 | 820 | 735 | 910 | 1350 |
| V571DB40 | 40mm | 575 | 730 | 770 | 40000 | 910 | 805 | 1000 | 1480 |
| V661DB40 | 40mm | 660 | 850 | 900 | 40000 | 1050 | 940 | 1160 | 1720 |
| V751DB40 | 40mm | 750 | 970 | 1050 | 40000 | 1200 | 1080 | 1320 | 2000 |
- Datasheet
- Varistors DA and DB Datasheet db
- Other
- Combining GDTs and MOVs for Surge Protection of AC Power Lines Application Note ra
- ICPTest_DA_DB_Series_12_20_2011_pdf db
- ICPTest_DADB_Series_12 24 2010 pdf db
- Circuit Protection Technology Application Matrix ra
- Dongguan BeiCe ISO TS16949 ra
- Dongguan BeiCe ISO 14001 2004 ra
- Dongguan BeiCe ISO 9001 2000 ra
- EC608 Considerations for Selecting Littelfuse MOVs and Fuses for Industrial Motor Applications c-iii
- AN9769 An Overview of Electromagnetic and Lightning Induced Voltage Transients ra
- Product Selection Guide ra
- AN9768 Transient Suppression Devices and Principles ra
- Varistors Catalog ra
