Schneider Electric MasterPact NW25H1 2500A 4-Pole Fixed ACB with MicroLogic 2.0E – 65kA, Ref. 48076
The Schneider Electric MasterPact NW25H1 48076 is a 2500A, 4-pole fixed Air Circuit Breaker (ACB) supplied with a MicroLogic 2.0E electronic trip unit. It provides 65kA ultimate breaking capacity at 440V AC, LI protection and energy metering for high-capacity low-voltage power distribution applications.
Description
The Schneider Electric MasterPact NW25H1 2500A 4P Fixed ACB, Reference 48076, is a high-capacity air circuit breaker designed for protection and control of low-voltage electrical distribution systems.
This configuration uses the MasterPact NW25H1 2500A frame in a 4-pole fixed-mount construction and is supplied by Farado Engineering as a complete breaker with a MicroLogic 2.0E control unit fitted. The product page identifies it as ready for installation and commissioning.
The breaker provides 65kA Icu at 440V AC, with Ics equal to 100% of Icu and 65kA short-time withstand current for 1 second. It has a maximum operational voltage of 690V AC, 50/60Hz, making it suitable for high-current industrial and commercial distribution systems.
The fitted MicroLogic 2.0E provides long-time overload and instantaneous short-circuit protection (LI). Its electronic protection settings include adjustable long-time current and time-delay settings, while the “E” energy version provides electrical measurements and energy-related monitoring functions.
The 48076 MasterPact NW25H1 is particularly suitable for main incomers, large feeders, industrial switchboards, commercial power distribution systems and retrofit applications where high current capacity, basic electronic protection and metering are required.
| Specification | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Product Range | MasterPact NW |
| Model | MasterPact NW25H1 |
| Schneider Reference | 48076 |
| Product Type | Air Circuit Breaker / ACB |
| Rated Current (In) | 2500A |
| Number of Poles | 4P |
| Mounting | Fixed |
| Trip Unit | MicroLogic 2.0E fitted |
| Protection Functions | LI – Long-time + Instantaneous |
| Ultimate Breaking Capacity (Icu) | 65kA at 440V AC |
| Service Breaking Capacity (Ics) | 100% of Icu / 65kA |
| Short-Time Withstand (Icw) | 65kA, 1s / 3s |
| Rated Operational Voltage (Ue) | 690V AC |
| Rated Frequency | 50/60Hz |
| Rated Insulation Voltage (Ui) | 1000V AC |
| Impulse Withstand Voltage (Uimp) | 12kV |
| Utilization Category | Category B |
| Neutral Position | Left |
| Network Type | AC |
| Control Mode | Manually operated |
| Mechanical Durability | 10,000 cycles without maintenance / 20,000 with maintenance |
| Electrical Durability | Up to 6,000 cycles depending on utilization and voltage |
| Ambient Operating Temperature | -25°C to +70°C |
| Circuit Breaker Standard | IEC 60947-2 |
| Product Certification | ASTA |
| Protection Degree | IP30 |
| Environmental Compliance | Mercury Free, RoHS compliant |
| Approx. Weight | 47.251kg |
Key Features
2500A High-Current ACB
The MasterPact NW25H1 2500A is designed for high-capacity LV power distribution and demanding switchboard applications.
65kA Short-Circuit Breaking Capacity
The H1 performance version provides 65kA Icu at 440V AC, with service breaking capacity equal to 100% of Icu.
4-Pole Fixed Construction
The 4P fixed ACB provides switching and protection for three-phase plus neutral distribution systems. The 48076 configuration has the neutral positioned on the left.
MicroLogic 2.0E Electronic Protection
The fitted MicroLogic 2.0E provides LI protection, combining adjustable long-time overload protection with instantaneous short-circuit protection.
Energy Measurement
The MicroLogic 2.0E belongs to Schneider’s energy-monitoring version of the MicroLogic family and supports electrical measurement functions including currents, voltages, active power, power factor and active energy.
Category B ACB
The MasterPact NW25H1 frame provides 65kA short-time withstand capability, supporting selective coordination in appropriately designed LV distribution systems.
Applications
The Schneider MasterPact NW25H1 2500A 4P Fixed ACB is suitable for:
- Main incomer protection
- Large LV switchboards
- Main distribution boards
- Industrial power distribution
- Commercial building power systems
- Large electrical feeders
- Generator distribution systems
- Transformer secondary protection
- Bus-section and distribution applications
- Industrial plants and infrastructure
- High-capacity retrofit projects
- Power monitoring and energy measurement applications
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