SQB2 aR 690V fuse link for semiconductors Blade Contact 80mm
SQB2 Square body aR fuse links for semiconductors
NEW
Range
| SIZE | Un (V AC) | In (A) | REFERENCE |
| SQB2 | 690V | 400 | 251425 |
| 450 | 251430 | ||
| 500 | 251435 | ||
| 550 | 251440 | ||
| 630 | 251445 | ||
| 700 | 251450 | ||
| 800 | 251455 | ||
| 900 | 251460 | ||
| 1000 | 251465 |
Technical data
| Rated voltage | 690V AC |
| Rated current | 400A...1000A |
| Rated breaking capacity | 120kA |
| Operating class | aR |
| Minimum breaking current | 3,5·In |
| Rated frequency | 42...62Hz |
| Max. altitude * | 2000 m |
| Storage temperature | -40°C ... 90°C |
| Operating temperature ** | -40°C ... 80°C |
| * For altitudes higher than 2000 m it is necessary to apply a derating in maximum current (consult us). ** For ambient temperatures higher than 25ºC it is necessary to apply a derating in maximum current. |
|
Standards
IEC/EN 60269-1
IEC/EN 60269-4
UL248-1
UL248-13
RoHS Compliant
Dimensions
| A | B | E | F | H | L |
| 66 | 60 | 49 | 95 | 25 | 108,5 |
Weight 565gr
t-I characteristics
Cut-off characteristics
Power dissipation
| RATED CURRENT (A) |
REFERENCE | POWER DISSIPATION In (W) |
PREARCING I2t (A2s) |
I2t 690V (A2s) |
|---|---|---|---|---|
| 400 | 251425 | 77 | 10500 | 79250 |
| 450 | 251430 | 79 | 15200 | 114100 |
| 500 | 251435 | 80 | 20400 | 153100 |
| 550 | 251440 | 86 | 28740 | 215700 |
| 630 | 251445 | 95 | 41390 | 610600 |
| 700 | 251450 | 97 | 61380 | 464100 |
| 800 | 251455 | 102 | 93130 | 699000 |
| 900 | 251460 | 107 | 136250 | 1027000 |
| 1000 | 251465 | 120 | 186250 | 1390000 |
Compatible
|
|
| microswitch system for SQUARE BODY aR fuse links |
|
| NEW | |
| REF | 357015 |
| U | 250V |
| In | 4A |
| Kit includes the striker support, two fixing screws and the microswitch ref. 357020 |
Other versions
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 |
 |
|
|---|---|---|
| U | 690V AC | 690V AC |
| IN | 400A...1000A | 400A...1000A |
| Breaking capacity | 120kA | 120kA |