Schneider Electric MasterPact NW20H2 2000A 4-Pole Fixed ACB – 100kA, Without Trip Unit
The Schneider Electric MasterPact NW20H2 48065 is a 2000A, 4-pole fixed Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution. Its H2 performance class provides 100kA Icu at 440V AC, with a rated operational voltage up to 690V AC. The breaker is supplied without a MicroLogic trip/control unit.
Description
The Schneider Electric MasterPact NW20H2 2000A 4P Fixed ACB, Reference 48065, is a high-performance air circuit breaker frame for industrial, commercial and infrastructure power distribution systems.
With a 2000A rated current and H2 breaking performance, the MasterPact NW20H2 provides 100kA ultimate short-circuit breaking capacity at 440V AC. Its service breaking capacity is 100% of Icu, making it suitable for installations with high prospective fault currents.
The 48065 configuration is a 4-pole fixed-mount breaker supplied without a MicroLogic trip unit. The appropriate Schneider Electric MicroLogic control unit can be selected separately according to the required protection, metering and communication functions.
The breaker is rated for operation up to 690V AC, 50/60Hz and is designed according to IEC 60947-2. Its Category B construction and high short-time withstand capability make it suitable for selective coordination within engineered LV distribution systems.
| Specification | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Product Range | MasterPact NW |
| Model | MasterPact NW20H2 |
| Reference | 48065 |
| Product Type | Air Circuit Breaker / ACB Frame |
| Rated Current (In) | 2000A |
| Number of Poles | 4P |
| Mounting | Fixed |
| Trip / Control Unit | Without trip unit |
| Performance Class | H2 |
| Ultimate Breaking Capacity (Icu) | 100kA at 440V AC |
| Service Breaking Capacity (Ics) | 100% of Icu |
| Short-Time Withstand (Icw) | 85kA for 1s / 75kA for 3s |
| Rated Operational Voltage (Ue) | 690V AC, 50/60Hz |
| Rated Insulation Voltage (Ui) | 1000V AC |
| Impulse Withstand Voltage (Uimp) | 12kV |
| Rated Frequency | 50/60Hz |
| Network Type | AC |
| Utilization Category | Category B |
| Neutral Position | Left |
| Mechanical Durability | 10,000 cycles without maintenance / 20,000 cycles with maintenance |
| Electrical Durability | Up to 8,000 cycles at 440V AC, depending on utilization |
| Operating Temperature | -25°C to +70°C |
| Standard | IEC 60947-2 |
| Certification | ASTA, ASEFA |
| Protection Degree | IP30 |
| Environmental Compliance | Mercury Free, RoHS compliant |
| Listed Weight | 47.252kg |
| Warranty | 18 months |
Key Features
2000A High-Current Capacity
The MasterPact NW20H2 2000A ACB is designed for high-capacity LV distribution applications where continuous current handling and high fault-level protection are required.
100kA H2 Breaking Capacity
The H2 performance class provides 100kA Icu at 440V AC, making the NW20H2 suitable for electrical systems with high prospective short-circuit currents.
4-Pole Fixed Construction
The 4P fixed ACB is designed for three-phase, four-wire distribution systems. Its fixed construction provides a permanent switchboard installation rather than a withdrawable arrangement.
Without Trip Unit
The 48065 is supplied without a MicroLogic control unit. This allows the protection and monitoring configuration to be specified separately according to project requirements.
High Short-Time Withstand Capability
The breaker provides 85kA Icw for 1 second and 75kA for 3 seconds, supporting selectivity and coordination in properly engineered LV distribution systems.
690V AC System Rating
With a 690V AC rated operational voltage, the MasterPact NW20H2 can be used across a wide range of industrial and commercial LV power distribution systems.
Applications
The Schneider MasterPact NW20H2 2000A 4P Fixed ACB is suitable for:
- Main incomer protection
- LV main distribution boards
- Industrial switchboards
- Commercial power distribution
- Transformer secondary protection
- Generator incomer applications
- Bus-section and bus-coupler systems
- High short-circuit-level installations
- Industrial manufacturing facilities
- Large commercial buildings
- Infrastructure power systems
- Critical power distribution
- High-capacity feeder protection
Electrical Junction specifically positions the NW20H2 48065 for main incomer and sub-main protection in commercial and industrial LV switchboards.
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