Schneider Electric MasterPact NW32H1 3200A 4-Pole Fixed ACB – 65kA, Without Trip Unit
The Schneider Electric MasterPact NW32H1 48087 is a 3200A, 4-pole fixed Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution. It features 65kA short-circuit breaking capacity, a 690V AC operating voltage, Category B selectivity, and is supplied without a trip/control unit.
Key Product Highlights
- 3200A rated current
- 4-pole fixed ACB
- 65kA Icu at 440V AC
- 65kA Ics
- 65kA Icw for 1s / 3s
- 690V AC rated operational voltage
- 1000V AC insulation voltage
- 12kV impulse withstand voltage
- Category B utilization
- Suitable for isolation
- Without trip/control unit
- IEC 60947-2 compliant
- ASTA certified
- Fixed mounting configuration
Description
The Schneider Electric MasterPact NW32H1 3200A 4-Pole Fixed ACB, Ref. 48087, is a high-performance air circuit breaker for LV power distribution protection in demanding industrial and commercial electrical systems.
With a 3200A rated current at 40°C and 65kA Icu and Ics, the MasterPact NW32H1 provides high-level short-circuit interruption and short-time withstand capability. The breaker is rated for operation up to 690V AC, 50/60Hz and offers 65kA Icw for 1 or 3 seconds, supporting selective coordination in Category B switchboards.
The 48087 ACB is a fixed 4-pole configuration with the neutral positioned on the left and is supplied without a trip/control unit. A suitable Schneider Electric control/trip unit must therefore be selected separately according to the required protection functions and installation configuration.
The MasterPact NW32H1 is suitable for main incomers, power distribution boards, industrial switchboards, generator systems, bus-coupler applications and large commercial electrical installations where high current capacity and reliable short-circuit protection are required.
| Specification | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Product Range | MasterPact NW |
| Model | MasterPact NW32H1 |
| Commercial Reference | 48087 |
| Product Type | Air Circuit Breaker / Basic Frame |
| Rated Current (In) | 3200A at 40°C |
| Number of Poles | 4P |
| Mounting | Fixed |
| Neutral Position | Left |
| Trip / Control Unit | Without control unit |
| Breaking Capacity Code | H1 |
| Icu | 65kA at 220–240V, 380–415V, 440V, 525V and 690V AC |
| Ics | 65kA |
| Icw | 65kA for 1s / 3s |
| Icm | 143kA |
| Rated Operational Voltage (Ue) | 690V AC, 50/60Hz |
| Rated Insulation Voltage (Ui) | 1000V AC |
| Impulse Withstand Voltage (Uimp) | 12kV |
| Frequency | 50/60Hz |
| Utilization Category | Category B |
| Isolation Suitability | Yes, according to IEC 60947-2 |
| CT / Sensor Rating | 3200A |
| Maximum Breaking Time | 25ms |
| Maximum Closing Response Time | 70ms |
| Mechanical Durability | 10,000 cycles without maintenance / 20,000 cycles with maintenance |
| Electrical Durability | Up to 6,000 cycles depending on utilization and voltage |
| Connection Pitch | 115mm |
| Dimensions (H × W × D) | 352 × 537 × 297mm |
| Protection Degree | IP30 |
| Pollution Degree | 4 |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Standard | IEC 60947-2 |
| Certification | ASTA |
| Environmental Compliance | Green Premium, EU RoHS compliant, Mercury Free |
| Warranty | 18 months |
Key Features
3200A High-Current Capacity
The MasterPact NW32H1 3200A ACB is designed for high-capacity LV power distribution systems and large switchboards.
65kA Short-Circuit Protection
The H1 performance version provides 65kA Icu and Ics, including at 440V AC, making it suitable for high fault-level installations.
4-Pole Fixed Construction
The 4P fixed ACB provides switching and protection across three phases and neutral in fixed switchboard installations.
Category B Selectivity
Its Category B classification and 65kA short-time withstand capability support selective coordination with downstream protection devices.
High Voltage Rating
The breaker has a 690V AC rated operational voltage, 1000V insulation voltage, and 12kV impulse withstand voltage.
Without Trip Unit
Reference 48087 is supplied without a trip/control unit, allowing the appropriate protection/control configuration to be selected separately.
Applications
The Schneider MasterPact NW32H1 3200A 4P ACB is suitable for:
- Main incomer protection
- LV switchboards
- Main distribution boards
- Industrial power distribution
- Commercial building electrical distribution
- Generator incomer applications
- Bus-coupler and bus-section systems
- Large industrial facilities
- Data centers and critical power systems
- High-capacity electrical panels
- Transformer secondary protection
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