SQB3 aR 690V fuse link for semiconductors Blade Contact 80mm
SQB3 Square body aR fuse links for semiconductors
NEW
Range
| SIZE | Un (V AC) | In (A) | REFERENCE |
| SQB3 | 690V | 500 | 251525 |
| 550 | 251530 | ||
| 630 | 251535 | ||
| 700 | 251540 | ||
| 800 | 251545 | ||
| 900 | 251550 | ||
| 1000 | 251555 | ||
| 1100 | 251560 | ||
| 1250 | 251565 | ||
| 1400 | 251570 |
Technical data
| Rated voltage | 690V AC |
| Rated current | 500A...1400A |
| 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 |
| 81 | 73,5 | 50,5 | 109 | 30 | 108,5 |
Weight 854gr
t-I characteristics
Cut-off characteristics
Power dissipation
| RATED CURRENT (A) |
REFERENCE | POWER DISSIPATION In (W) |
PREARCING I2t (A2s) |
I2t 690V (A2s) |
|---|---|---|---|---|
| 500 | 251525 | 90 | 18700 | 137000 |
| 550 | 251530 | 93 | 24900 | 182900 |
| 630 | 251535 | 103 | 36500 | 269000 |
| 700 | 251540 | 108 | 51500 | 379000 |
| 800 | 251545 | 115 | 82500 | 600000 |
| 900 | 251550 | 123 | 108000 | 790000 |
| 1000 | 251555 | 129 | 153500 | 1125000 |
| 1100 | 251560 | 142 | 196000 | 1400000 |
| 1250 | 251565 | 155 | 282000 | 2050000 |
| 1400 | 251570 | 177 | 383000 | 2800000 |
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 | 500A...1400A | 500A...1400A |
| Breaking capacity | 120kA | 120kA |