Eaton NZMN3-4-A320-SVE Molded-Case Circuit Breaker 4-Pole 320A 50KA

Eaton NZM3 molded-case circuit breaker, type NZMN3-4-A320-SVE. 4-pole, rated current 320 A, breaking-capacity class N, frame size NZM3 (up to 630 A). Rated operational voltage 690 V AC; rated ultimate short-circuit breaking capacity (Icu) 50 kA at 400/415 V AC to IEC/EN 60947-2. Thermomagnetic release — adjustable thermal overload and electromagnetic short-circuit protection. Plug-in (withdrawable) version. Utilization category A, suitable for isolation.

Manufacturer part number (MPN)

NZMN3-4-A320-SVE

Series

Eaton NZM3 (Moeller series NZM)

Type

Molded-case circuit breaker (MCCB)

Breaking-capacity class

N (standard breaking capacity)

Number of poles

4-Pole

Rated current (In)

320 A

Frame size

NZM3 (up to 630 A)

Rated operational voltage (Ue)

690 V AC

Rated insulation voltage (Ui)

800 V

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

50 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

Plug-in (withdrawable) version

EAN / GTIN

4015081649860

HS code

8536.20

Sales unit

pcs

Eaton catalogue number

168508

Depth

335 mm

Height

215.2 mm

Width

185 mm

Weight

8.81 kg

Compliances

RoHS conform

Accessories required

NZM3-XSVS

Amperage Rating

320 A

Application

Use in unearthed supply systems at 690 V

Features

Motor drive optional; Protection unit

Special features

Rated current = rated uninterrupted current: 320 A

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

94 W

Current rating of neutral conductor

200% of phase conductor

Electrical connection type of main circuit

Screw connection

Handle type

Rocker lever

Instantaneous current setting (Ii) - max

19200 A

Instantaneous current setting (Ii) - min

1920 A

Overload current setting (Ir)

250 A - 320 A

Overload current setting (Ir) - max

320 A

Overload current setting (Ir) - min

250 A

Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 500 V DC

30 kA

Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 750 V DC

30 kA

Rated short-circuit making capacity Icm at 240 V, 50/60 Hz

330 kA

Short-circuit release non-delayed setting - max

3200 A

Short-circuit release non-delayed setting - min

1920 A

Voltage rating

690 V - 690 V

Degree of protection

IP20

Mounting Method

Built-in device plug-in technique

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

Optional terminals

Box terminal. Connection on rear. Tunnel terminal

Terminal capacity (copper busbar)

Max. 30 mm x 10 mm + 30 mm x 5 mm direct at switch rear-side connection

Terminal capacity (copper strip)

10 segments of 50 mm x 1 mm (2x) at rear-side width extension; Max. 10 segments of 32 mm x 1 mm + 5 segments of 32 mm x 1 mm at rear-side connection (punched); Min. 6 segments of 16 mm x 0.8 mm at rear-side connection (punched)

Document Name

Description Action

Standard

Eaton NZM

HS Code

8536.20

• EAN 4015081649860
• SAP 1200601008
• Code 82989321