Masterpact NW10 H1 4 Pole 1000A Breaker | Schneider Electric

The Masterpact NW10 H1 is a 1000 A, 4-pole air circuit breaker designed to keep low-voltage power systems safe in challenging industrial, maritime, and commercial environments. This Masterpact NW10 H1 is built to handle high short-circuit levels, like those that happen with parallel transformers or strong motor loads, without losing its cool.

The Masterpact NW10 H1 4-pole 1000 A breaker is a heavy-duty air circuit breaker that won’t let you down, even when the system is under a lot of stress. It combines the rich history of Merlin Gerin with the engineering of Schneider Electric, so your panel feels safer, stronger, and easier to trust every time you put the Masterpact NW10 H1 in or take it out.

The Masterpact NW10 H1 breaker has four poles; thus, it protects the three phases and changes the neutral. This is crucial for safety, unbalanced loads, and delicate electronics. The drawout variants make things easier for maintenance crews since they can isolate, test, and replace the breaker without having to move the busbars or power lines. The fixed versions, on the other hand, keep things small and cost-effective when regular withdrawal isn’t needed.

The Masterpact NW10 H1 feels like the “heart” of the switchboard when it’s working. It silently carries 1000 A at 40 °C and is always ready to fix problems in a few milliseconds if something goes wrong. The Masterpact NW10 H1 becomes a smart protection device when used with Micrologic electronic trip units. It provides accurate protection, metering, and communication, so you can see and control what your power system is doing instead of just guessing.

Technical Specifications

Product Features:

• 1000 A rated current at 40 °C for continuous duty, perfect for main incomers and big outgoing feeders
• 4-pole setup (3P + N), with the option of having the neutral on the right or left, depending on the specific catalog number
• H1 performance level with a breaking capacity of 65 kA at 440 V AC, good for networks with a lot of faults
• The frame is made for 690 V AC operational voltage and 1000 V AC insulation voltage, which gives LV systems a lot of room to work with
• You can choose a fixed or drawout “basic frame” without a trip unit. It can be connected with Micrologic control units to fit your protection philosophy.

When reliability is important, such when downtime hurts, panels are far from home, or someone’s reputation depends on the breaker closing and opening at the right moment, engineers choose to choose the Masterpact NW10 H1. When things become tough, having a Masterpact NW10 H1 in the middle of the board gives you a quiet sense of confidence that is hard to put into words.