Circuit breaker NZM4 VX N 4P 800A (191439)
Eaton

Circuit breaker NZM4 VX N 4P 800A

Part number191439EAN / GTIN4015081919512HS code8536.90
Electrical Components
Moulded Case Circuit Breakers
MOQ:1

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Product Description

Eaton 191439 Circuit breaker NZM4, VX-protection, 4 polt, 800 ampere, 50 kA.

Technical Specifications

Manufacturer part number (MPN)
191439
EAN / GTIN
4015081919512
HS code
8536.90
Sales unit
pcs
Eaton catalogue number
191439
Depth
375 mm
Height
170 mm
Width
280 mm
Weight
25.5 kg
Compliances
RoHS conform
Certifications
IEC; IEC/EN 60947
Functions
Systems, cable, selectivity and generator protection
Amperage Rating
800 A
Application
Use in unearthed supply systems at 525 V
Circuit breaker frame type
NZM4
Features
Protection unit; Motor drive optional
Number of poles
Four-pole
Release system
Electronic release
Type
Circuit breaker
Ambient operating temperature - max
70 °C
Ambient storage temperature - max
70 °C
Ambient operating temperature - min
-25 °C
Equipment heat dissipation, current-dependent
106 W
Rated operational current for specified heat dissipation (In)
800 A
Current rating of neutral conductor
200% of phase conductor
Direction of incoming supply
As required
Electrical connection type of main circuit
Screw connection
Handle type
Rocker lever
Instantaneous current setting (Ii) - max
18 A
Instantaneous current setting (Ii) - min
2 A
Isolation
500 V AC (between auxiliary contacts and main contacts); 300 V AC (between the auxiliary contacts)
Lifespan, electrical
3000 operations at 400 V AC-1; 3000 operations at 415 V AC-1; 20000 operations at 690 V AC-1
Number of operations per hour - max
60
Overload current setting (Ir) - max
800 A
Overload current setting (Ir) - min
320 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 insulation voltage (Ui)
690 V AC
Rated short-circuit making capacity Icm at 240 V
50/60 Hz
110 kA
Rated short-circuit making capacity Icm at 400/415 V
Rated short-circuit making capacity Icm at 440 V
50/60 Hz
77 kA
Rated short-circuit making capacity Icm at 525 V
50/60 Hz
55 kA
Rated short-circuit making capacity Icm at 690 V
50/60 Hz
40 kA
Rated short-time withstand current (t = 0.3 s)
12 kA
Rated short-time withstand current (t = 1 s)
12 kA
Short delay current setting (Isd) - max
10 A
Short delay current setting (Isd) - min
2 A
Short-circuit release delayed setting - max
8000 A
Short-circuit release delayed setting - min
640 A
Short-circuit release non-delayed setting - max
12000 A
Short-circuit release non-delayed setting - min
1600 A
Short-circuit total breaktime
< 25 ms (≦ 415 V); < 35 ms (> 415 V)
Utilization category
B (IEC/EN 60947-2)
Voltage rating
690 V - 690 V
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30; Damp heat, constant, to IEC 60068-2-78
Degree of protection
IP20 (basic degree of protection, in the operating controls area); IP20
Degree of protection (IP), front side
IP40 (with insulating surround); IP66 (with door coupling rotary handle)
Degree of protection (terminations)
IP10 (tunnel terminal); IP00 (terminations, phase insulator and strip terminal)
Lifespan, mechanical
10000 operations
Mounting Method
Built-in device fixed built-in technique; Fixed
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
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110
Shock resistance
15 g (half-sinusoidal shock 11 ms)
Optional terminals
Connection on rear. Strip terminal. Tunnel terminal
Standard terminals
Screw terminal
Terminal capacity (aluminum stranded conductor/cable)
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
Terminal capacity (control cable)
0.75 mm² - 1.5 mm² (2x); 0.75 mm² - 2.5 mm² (1x)
Terminal capacity (copper stranded conductor/cable)
50 mm² - 185 mm² (4x) direct at switch rear-side connection; 120 mm² - 185 mm² (1x) direct at switch rear-side connection
Document Name
Description Action

Standards & Compliance

HS Code
8536.90

Cross References

  • EAN 4015081919512
  • SAP 1200780812
  • Code 83939508

Product Documentation

Document preview: Circuit breaker NZM4 VX N 4p 800A (191439) — Specification Data Sheet (OEM)

Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 191439?
191439 can be ordered from cballast.com as a Eaton catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this Eaton product?
The manufacturer part number is 191439.
What is the HS code for 191439?
The customs tariff (HS) code for 191439 is 8536.90.
Who manufactures 191439?
191439 is a Eaton product in the Electrical Components range.
Is a datasheet available for 191439?
Yes — the 191439 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 191439?
The minimum order quantity is 1.
Is 191439 available?
Yes — 191439 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).