Circuit Breakers Masterpact NW16H1 1600 A 3P Fixed

Manufacturer	Schneider
Part Number	NW16H1
Product Type	Circuit Breakers

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Description
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Overview

NW16H1 is Masterpact NW series frame circuit breaker, 65kA high breaking + 100% Ics, withstand short circuit (65kA/1s), suitable for AC23A/AC3 load, electrical life ≥10,000 times (690V). Optional undervoltage trip, shunt trip, auxiliary contact, door interlock, etc.

Specification

Parameter	Value
Rated Current (In)	1600A (@40℃)
Rated Voltage (Ue)	690V AC 50/60Hz
Ultimate Breaking Capacity (Icu)	65kA (220-690V AC)
Service Breaking Capacity (Ics)	100% Icu = 65kA
Short-time Withstand Current (Icw)	65kA/1s; 36kA/3s
Pole Number	3P or 4P (4P with neutral on left)
Mounting Type	Drawout
Control Method	Pushbutton control, trip unit optional
Isolation Capability	Complies with IEC 60947-2, suitable as isolation device
Application Category	Category B (Power distribution protection)

FAQ:

1.Are the installation dimensions of NW16H1 3P and 4P models consistent?

The installation dimensions of the 3P and 4P models of NW16H1 are the same in height and depth, only the width is different:

Dimension	3P (48273)	4P (48280)	Difference
Height	439 mm	439 mm	No difference
Width	441 mm	556 mm	4P is 115 mm wider than 3P
Depth	394.5 mm	394.5 mm	No difference

2.Which types of trip units can NW16H1 be adapted to?

Trip Unit Type	Model Series	Core Protection Functions	Application Scenarios
Electronic Trip	MicroLogic 2.0/2.0A	LSO (Long-time delay + Instantaneous + Alarm)	Basic power distribution protection, cost priority
Electronic Trip	MicroLogic 5.0/5.0A/5.0P	LSI (Long-time delay + Short-time delay + Instantaneous)	Standard power distribution protection, requiring selective coordination
Electronic Trip	MicroLogic 6.0/6.0A/6.0P	LSIG (Long-time delay + Short-time delay + Instantaneous + Ground fault)	Comprehensive power distribution protection, critical loads and motor control
Electronic Trip	MicroLogic 7.0/7.0A/7.0P	LSIG + Energy metering + Communication	Intelligent power distribution, data centers/infrastructure
Thermomagnetic Trip	TM-D	Fixed/adjustable thermomagnetic protection	Simple working conditions, no complex setting required

3.What is the core difference between the NW16H1 drawer-type and fixed-type bodies?

Comparison Dimension	Drawout Body	Fixed Body
Core Structure	Body + dedicated drawout cradle, body extractable	Integrated fixed structure, no drawout cradle
Mounting Method	Body pushed into and locked on the cradle, main wiring connected to the cradle	Directly fixed on mounting plate/cabinet, main wiring connected to body terminals
Operating Positions	Three positions available: Connected, Test, Disconnected	Only two positions: Closed, Open
Maintenance Convenience	Body can be quickly extracted without modifying the main busbar	All wiring must be removed for maintenance/replacement
Interchangeability	Same-model bodies interchangeable between identical cradles	No interchangeability, rewiring and reinstallation required for replacement
Safety Isolation	Definite isolation function in Disconnected position	Additional isolation switch required for isolation
Cost	Higher (including drawout cradle cost)	Lower (simpler structure)
Applicable Scenarios	Critical loads, frequent maintenance, quick replacement required	Stable loads, low maintenance demand, cost-sensitive applications

Looking for Original New Circuit Breakers Masterpact NW16H1 1600 A 3P Fixed?

We supply this NW16H1 mainly to system integrators and maintenance teams for replacement and retrofit projects.

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