Approvals & Standards
- IEC 60269.4 Compliance
- UL/CSA Recognized E76491
- CCC GB 1539.4
Key features & benefits
The 690/700V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These aR ultra-fast acting square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles.
They have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors and IGBT devices. They are assembled with die-cut elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic.
Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.
Applications
- Protection of inverters, motor drives, UPS systems and similar 690V or less equipments.
Documents & Resources
Datasheet
Compliance
Product Specifications
Item Number
B300473
Catalog number
A070UD31TTI250
Item Description (ERP)
A 070 URD 31 TTI 0250
Description
PROTISTOR® SB aR, UNC threaded end, TTI, sz.31, 690VAC IEC-700VAC UL, 250A
EAN/UPC code
3605340329025
Rated voltage AC UL
700 V
Rated voltage AC IEC
690 V
Rated current
250 A
Speed/Characteristic
aR
Fuse size
31
Mounting
Bolted
Clearing I2t At Rated Voltage
28000 A²s
Melting I2t
4700 A²s
AC Max I.R./Breaking Capacity: I1
200 kA
Power Dissipation at Rated Current Value
52 W
Indication System
Yes
Indication System Type
Striker
Contact materials
Silver-Plated Brass
Connection/Terminal Type
End Contact with Threaded Holes
Body/Insulating Material
Ceramic
Product Weight
0.385 kg
Product Width
51 mm
Product Length
50.6 mm
Product Height
56.5 mm
Sell Pack Quantity
3 EACH
Sell Pack Weight
1.155 kg
Sell Pack Width
85 mm
Sell Pack Length
168 mm
Sell Pack Height
65 mm