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This product is a non-automatic load break isolator from Schneider Electric’s Interpact INS series, with the official order code 31114.
It is designed for power isolation and maintenance safety in low-voltage distribution systems.
It is 3-pole, rated current 630A, rated voltage 690VAC, without short-circuit or overload protection, and is used only for isolation purposes.
- Model Breakdown
| Model Part | Meaning | Key Description |
| Compact | Product platform | Schneider compact distribution platform, suitable for limited panel space |
| INS | Series code | Interpact INS series, non-automatic load break isolator, isolation only, no protection |
| 630 | Frame / rated current | Frame size 630A, operational current 630A (AC-22A / AC-23A) |
| 3 Pole | Number of poles | 3P (three-phase three-wire), no neutral pole, not suitable for neutral isolation in TN‑S / TT systems |
| 31114 | Official order code | Unique code for standard version (black rotary handle, fixed mounting) |
- Key Technical Specifications (Official Standard)
| Item | Specification | Applicable Standard |
| Product type | Non-automatic load break isolator | IEC 60947-3, EN 60947-3 |
| Rated voltage | AC 690V, Ui 750V | Suitable for 380/415/480V industrial systems |
| Rated current | 630A (AC-22A / AC-23A) | Continuous operation ≤ 630A, recommended duty ≤ 80% (≤ 504A) |
| Short-time withstand current | 11.5kA/3s, 20kA/1s, 4kA/30s | Withstands short-circuit current only, no breaking capacity |
| Impulse withstand voltage | Uimp 8kV | Lightning and overvoltage protection |
| Operation | Manual rotary handle (black) | Motor operation available (separate order) |
| Mounting | Fixed type | Front / rear connection, 35mm DIN rail or panel mount |
| Ingress protection | IP20 body, IP55 with handle | Indoor panels or outdoor enclosures |
| Mechanical endurance | 10,000 operations | Exceeds standard industrial requirements |
- Series Model List (630A Frame)
| Model (Order Code) | Poles | Type | Application |
| INS630 3P (31114) | 3P | Standard isolator | Incoming, bus-coupler, equipment isolation (3-phase 3-wire) |
| INS630 4P (31115) | 4P | Standard isolator | Isolation with neutral (3-phase 4-wire) |
| INS630 3P Changeover (31154) | 3P | Manual changeover switch | Mains / generator manual switching |
| INS630 4P Changeover (31155) | 4P | Manual changeover switch | 3-phase 4-wire dual power switching |
Extended Current Ratings
| Current | 3P Code | 4P Code | Breaking Characteristics |
| 400A | 31112 | 31113 | Same as INS630, current only |
| 500A | 31116 | 31117 | – |
| 630A | 31114 | 31115 | This model |
- Recommended Equivalent Models from Other Brands
| Brand | Series | Equivalent Model | Matching Parameters | Notes |
| LS Electric | Meta-MEC IS | IS630N-3P | 3P, 630A, 690V, isolator | Economic version |
| ABB | OT | OT630E03 | 3P, 630A, 690V, isolator | Visible break |
| Siemens | 3KD | 3KD4630-0NE10 | 3P, 630A, 690V, isolator | Motor operation compatible |
| Eaton | NZM | NZM3-XT630 | 3P, 630A, 690V, isolator | Enhanced interlocking |
| Changshu Switch | CM1G | CM1G-630/3300 | 3P, 630A, 690V, isolator | Domestic high cost‑performance |
- Typical Applications (Isolation Only, No Protection)
- Industrial Plants
| Application | Reason | Recommendation |
| Production line main isolation | 630A suitable for ≤315kW three-phase loads | Used in series with NSX630N circuit breaker |
| Large motor circuit isolation | Motors above 200kW (fans, pumps, compressors) | Complete protection with contactor & relay |
| Panel bus-coupler isolation | Dual power supply systems | Mechanical interlock recommended |
- Commercial & Public Buildings
Office / shopping mall incomer isolation with EZD630 breakers
Secondary distribution isolation in hospitals and schools
Infrastructure partial isolation (metro, airport utilities)
- Special Applications
Generator outlet isolation ≤500kVA
Capacitor bank isolation ≤300kvar
Construction site temporary power isolation
- Selection & Operation Guidelines
- Selection Rules
| Factor | Correct Selection | Risk of Wrong Selection |
| Function | Isolation only; must be used with a circuit breaker | No protection, equipment burnout |
| Poles | 3P for IT systems; 4P for TN‑S / TT | Risk of electric shock without neutral isolation |
| Current | Total load ≤ 504A (80% duty) | Overheating, reduced life |
| Short-circuit | System Isc ≤ 11.5kA/3s | Contact welding, failure to open |
- Safety Rules
- Do NOT break under load — operate only at no-load or light load
- Use interlocks with upstream breakers
- Indoor dry environment (-25°C ~ +70°C); outdoor needs IP55 enclosure
- Accessories: auxiliary contacts, motor operation, padlock attachment available
- Key Difference from Circuit Breaker
| Item | Compact INS630 3P | Compact NSX630N 3P |
| Type | Load break isolator | Molded case circuit breaker (MCCB) |
| Function | Isolation only | Overload + short-circuit protection |
| Breaking capacity | None, withstand only | Icu = 50kA @ 415V |
| Usage | Manual isolation for maintenance | Automatic protection during operation |
| Connection | Installed after breaker | Main protection device |
Schneider Compact INS630-3P (order code 31114) is a dedicated isolation device for safe maintenance in LV distribution systems.
It must be used with a circuit breaker.
If you require both protection and isolation, use NSX630N.
For economic alternatives, consider LS IS630N or Changshu CM1G.
