ComPacT INS
Schneider Electric catalog image for this SKU; may represent the product family.
SWITCH DISCONNECTOR
switch disconnector, Compact INS1250 , 1250 A, standard version with black rotary handle, 3 poles
SKU 31334Schneider Electric 31334 is a switch disconnector in the ComPacT INS range. Key specifications include operational current: AC-21A: 1250 A AC 50/60 Hz 220/240 V; poles: 3P; operational voltage: 125 V DC.
AC-21A: 1250 A AC 50/60 Hz 220/240 VOperational current
3PPoles
125 V DCOperational voltage
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 06, 2026.
| Product reference | 31334 |
|---|---|
| Range | ComPact |
| Product name | ComPacT INS |
| Product or component type | Switch disconnector |
| Poles description | 3P |
| Network type | AC DC |
| Network frequency | 50/60 Hz |
| [Ie] rated operational current | AC-21A: 1250 A AC 50/60 Hz 220/240 V AC-21A: 1250 A AC 50/60 Hz 380/415 V AC-21A: 1250 A AC 50/60 Hz 440/480 V AC-21A: 1250 A AC 50/60 Hz 480 V NEMA AC-21A: 1250 A AC 50/60 Hz 500/525 V AC-21A: 1250 A AC 50/60 Hz 660/690 V AC-22A: 1250 A AC 50/60 Hz 220/240 V AC-22A: 1250 A AC 50/60 Hz 380/415 V AC-22A: 1250 A AC 50/60 Hz 440/480 V AC-22A: 1250 A AC 50/60 Hz 480 V NEMA AC-22A: 1250 A AC 50/60 Hz 500/525 V AC-22A: 1250 A AC 50/60 Hz 660/690 V AC-23A: 1250 A AC 50/60 Hz 220/240 V AC-23A: 1250 A AC 50/60 Hz 380/415 V AC-23A: 1250 A AC 50/60 Hz 440/480 V AC-23A: 1250 A AC 50/60 Hz 480 V NEMA AC-23A: 1250 A AC 50/60 Hz 500/525 V AC-23A: 1250 A AC 50/60 Hz 660/690 V DC-21A: 1250 A DC 125 V 2 poles in series DC-22A: 1250 A DC 125 V 2 poles in series DC-23A: 1250 A DC 125 V 2 poles in series |
| [Ui] rated insulation voltage | 1000 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 12 kV |
| [Ith] conventional free air thermal current | 1250 A at 60 °C |
| [Icm] rated short-circuit making capacity | 75 kA switch-disconnector alone 690 V AC at 50/60 Hz 330 kA with upstream protection circuit breaker 690 V AC at 50/60 Hz |
| [Ue] rated operational voltage | 125 V DC 690 V AC 50/60 Hz |
| Suitability for isolation | Yes |
| Contact position indicator | Yes |
| Visible break | No |
| Pollution degree | 3 |
| Control type | Direct front rotary handle |
| Handle colour | Black |
| Mounting mode | Fixed |
| Mounting support | Rail Plate |
| Upside connection | Front |
| Downside connection | Front |
| Maximum power | AC-23: 400 kW at 220/240 V AC 50/60 Hz AC-23: 710 kW at 380/400 V AC 50/60 Hz AC-23: 800 kW at 415 V AC 50/60 Hz AC-23: 900 kW at 500/525 V AC 50/60 Hz |
| Rated duty | Uninterrupted |
| Intermittent duty class | Class 120 - 60 % |
| [Icw] rated short-time withstand current | 10 kA during 20 s conforming to IEC 60947-3 20 kA during 3 s conforming to IEC 60947-3 35 kA during 1 s conforming to IEC 60947-3 42 kA during 0.8 s conforming to IEC 60947-3 50 kA during 0.5 s conforming to IEC 60947-3 8 kA during 30 s conforming to IEC 60947-3 |
| Mechanical durability | 3000 cycles |
| Electrical durability | AC-21A: 500 cycles 220/240 V AC 50/60 Hz AC-21A: 500 cycles 380/415 V AC 50/60 Hz AC-21A: 500 cycles 440/480 V AC 50/60 Hz AC-21A: 500 cycles 480 V AC 50/60 Hz conforming to NEMA AC-21A: 500 cycles 500/525 V AC 50/60 Hz AC-21A: 500 cycles 660/690 V AC 50/60 Hz AC-22A: 500 cycles 220/240 V AC 50/60 Hz AC-22A: 500 cycles 380/415 V AC 50/60 Hz AC-22A: 500 cycles 440/480 V AC 50/60 Hz AC-22A: 500 cycles 480 V AC 50/60 Hz conforming to NEMA AC-22A: 500 cycles 500/525 V AC 50/60 Hz AC-22A: 500 cycles 660/690 V AC 50/60 Hz AC-23A: 500 cycles 220/240 V AC 50/60 Hz AC-23A: 500 cycles 380/415 V AC 50/60 Hz AC-23A: 500 cycles 440/480 V AC 50/60 Hz AC-23A: 500 cycles 480 V AC 50/60 Hz conforming to NEMA AC-23A: 500 cycles 500/525 V AC 50/60 Hz AC-23A: 500 cycles 660/690 V AC 50/60 Hz DC-21A: 500 cycles 125 V DC 2 poles in series DC-22A: 500 cycles 125 V DC 2 poles in series DC-23A: 500 cycles 125 V DC 2 poles in series |
| Connection pitch | 70 mm |
| Height | 300 mm |
| Width | 340 mm |
| Depth | 146.5 mm |
| Net weight | 14 kg |
| Standards | IEC 60947-3 IEC 60947-1 |
| Product certifications | KEMA-KEUR |
| IP degree of protection | IP40 conforming to IEC 60529 |
| IK degree of protection | IK07 conforming to EN 50102 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -50…85 °C |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.