Schneider Electric 49842
MPN49842
Obsolete
fuse switch disconnector body ISFL- 3 poles 3 F - DIN - NH - 250 A
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product name | FuPacT ISFL |
| Product / component type | Fuse-switch disconnector |
| Fuse type | DIN |
| Poles | 1 x 3P switchable |
| Application | Protection |
| Product range / family | FuPact |
| Parameter | Value |
|---|---|
| Rated operational voltage (Ue) | 440 V DC 690 V AC 50/60 Hz 800 V AC 50/60 Hz AC-20 800 V DC DC-20 |
| Rated operational current (Ie) | AC-21B: 250 A at 220/240 V AC 50/60 Hz AC-21B: 250 A at 380/415 V AC 50/60 Hz AC-21B: 250 A at 440/480 V AC 50/60 Hz AC-21B: 250 A at 500 V AC 50/60 Hz AC-21B: 250 A at 660/690 V AC 50/60 Hz AC-22B: 250 A at 220/240 V AC 50/60 Hz AC-22B: 250 A at 380/415 V AC 50/60 Hz |
| Rated insulation voltage (Ui) | 800 V AC 50/60 Hz 800 V DC |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Conventional free-air thermal current (Ith) | 175 A ( 70 °C ) vertical 188 A ( 65 °C ) vertical 200 A ( 60 °C ) vertical 213 A ( 55 °C ) vertical 225 A ( 50 °C ) vertical 238 A ( 45 °C ) vertical 250 A ( 40 °C ) power dissipation per fuse: 23 W 250 A ( 40 °C ) vertical |
| Conventional enclosed thermal current (Ithe) | 250 A at 40 °C, Power dissipation per fuse: 23 W |
| Parameter | Value |
|---|---|
| Suitable for isolation | Yes |
| Contact operation | Single-break |
| Parameter | Value |
|---|---|
| Mechanical durability (cycles) | 1600 cycles |
| Electrical durability (cycles) | AC-21B: 200 cycles 690 V AC 50/60 Hz AC-22B: 200 cycles 415 V AC 50/60 Hz |
| Control type | Fuse carriers handle |
| Rated duty | Uninterrupted |
| Parameter | Value |
|---|---|
| Operating ambient temperature | -25...70 °C |
| Storage ambient temperature | -50...85 °C |
| IP protection rating | IP20 conforming to IEC 60529 |
| IK impact protection rating | IK07 conforming to EN 50102 |
| Pollution degree | 3 conforming to IEC 60947 |
| Parameter | Value |
|---|---|
| Mounting support | Busbars |
| Fuse size | NH1 |
| Width | 100 mm |
| Depth | 192 mm |
| Height | 755 mm |
| Tightening torque | 40 N.m |
| Parameter | Value |
|---|---|
| Standards / approvals | IEC 60269-2-1 EN/IEC 60947-1 EN/IEC 60947-3 |
| Parameter | Value |
|---|---|
| Device short name | ISFL250 |
MPN
49842