Eaton NZMH2-A50-S1 Molded-Case Circuit Breaker 3-Pole 50A 150KA

Eaton NZM2 molded-case circuit breaker, type NZMH2-A50-S1. 3-pole, rated current 50 A, breaking-capacity class H, frame size NZM2 (up to 250 A). Rated operational voltage 1000 V AC; rated ultimate short-circuit breaking capacity (Icu) 150 kA at 400/415 V AC to IEC/EN 60947-2. Thermomagnetic release — adjustable thermal overload and electromagnetic short-circuit protection. 1000 V AC circuit-breaker (NZM…-S1 range). Utilization category A, suitable for isolation.

Manufacturer part number (MPN)

NZMH2-A50-S1

Series

Eaton NZM2 (Moeller series NZM)

Type

Molded-case circuit breaker (MCCB)

Breaking-capacity class

H (high breaking capacity)

Number of poles

3-Pole

Rated current (In)

50 A

Frame size

NZM2 (up to 250 A)

Rated operational voltage (Ue)

1000 V AC

Rated insulation voltage (Ui)

800 V

Rated ultimate short-circuit breaking capacity (Icu) at 400/415 V AC

150 kA

Trip unit / release

Thermomagnetic release — adjustable thermal overload and electromagnetic short-circuit protection

Utilization category

A

Suitable for isolation

Yes

Standard

IEC/EN 60947-2

Configuration

1000 V AC circuit-breaker (NZM…-S1 range)

EAN / GTIN

4015082903596

HS code

8536.20

Sales unit

pcs

Eaton catalogue number

290359

Depth

149 mm

Height

184 mm

Width

105 mm

Weight

2.345 kg

Compliances

RoHS conform

Certifications

IEC

Functions

System and cable protection

Amperage Rating

50 A

Circuit breaker frame type

NZM2

Features

Motor drive optional; Protection unit

Release system

Thermomagnetic release

Special features

Lifespan, mechanical: of which max. 50 % trip by shunt/undervoltage release NZM...S1 terminal type: NZM...XKSA cover required Rated current = rated uninterrupted current: 50 A Terminal capacity hint: Up to 240 mm² can be connected depending on the cable manufacturer.

Ambient operating temperature - max

70 °C

Ambient storage temperature - max

70 °C

Ambient operating temperature - min

-25 °C

Ambient storage temperature - min

-40 °C

Equipment heat dissipation, current-dependent

17.03 W

Rated operational current for specified heat dissipation (In)

50 A

Electrical connection type of main circuit

Screw connection

Handle type

Rocker lever

Instantaneous current setting (Ii) - max

500 A

Instantaneous current setting (Ii) - min

300 A

Lifespan, electrical

3000 operations at 1000 V AC-1

Number of operations per hour - max

120

Overload current setting (Ir) - max

50 A

Overload current setting (Ir) - min

40 A

Overvoltage category

III

Pollution degree

3

Rated impulse withstand voltage (Uimp) at auxiliary contacts

6000 V

Rated impulse withstand voltage (Uimp) at main contacts

8000 V

Rated short-circuit making capacity Icm at 1000 V

50/60 Hz

17 kA

Rated short-circuit making capacity Icm at 240 V

50/60 Hz

330 kA

Rated short-circuit making capacity Icm at 400/415 V

Rated short-circuit making capacity Icm at 440 V

50/60 Hz

286 kA

Rated short-circuit making capacity Icm at 525 V

50/60 Hz

105 kA

Rated short-circuit making capacity Icm at 690 V

50/60 Hz

40 kA

Rated short-time withstand current (t = 0.3 s)

1.9 kA

Rated short-time withstand current (t = 1 s)

1.9 kA

Short-circuit release non-delayed setting - max

500 A

Short-circuit release non-delayed setting - min

300 A

Voltage rating

1000 V - 1000 V

Degree of protection

IP20

Lifespan, mechanical

20000 operations

Mounting Method

Built-in device fixed built-in technique; Fixed; DIN rail (top hat rail) mounting optional

Number of auxiliary contacts (change-over contacts)

0

Number of auxiliary contacts (normally closed contacts)

0

Number of auxiliary contacts (normally open contacts)

0

Position of connection for main current circuit

Front side

Standard terminals

Screw terminal

Terminal capacity (aluminum solid conductor/cable)

16 mm² (1x) at tunnel terminal

Terminal capacity (aluminum stranded conductor/cable)

25 mm² - 185 mm² (1x) at tunnel terminal

Terminal capacity (control cable)

0.75 mm² - 1.5 mm² (2x); 0.75 mm² - 2.5 mm² (1x)

Terminal capacity (copper busbar)

Max. 24 mm x 8 mm direct at switch rear-side connection; Min. 16 mm x 5 mm direct at switch rear-side connection; M8 at rear-side screw connection

Terminal capacity (copper solid conductor/cable)

10 mm² - 16 mm² (1x) at box terminal; 16 mm² (1x) at tunnel terminal; 10 mm² - 16 mm² (2x) direct at switch rear-side connection; 10 mm² - 16 mm² (1x) direct at switch rear-side connection; 6 mm² - 16 mm² (2x) at box terminal

Terminal capacity (copper stranded conductor/cable)

25 mm² - 185 mm² (1x) at box terminal; 25 mm² - 70 mm² (2x) at box terminal; 25 mm² - 185 mm² (1x) at tunnel terminal; 25 mm² - 50 mm² (2x) direct at switch rear-side connection

Standard

Eaton NZM

HS Code

8536.20

• EAN 4015082903596
• SAP 1000055536
• Code 8845964