IZMX40N4-A32F
149891 IZMX40N4-A32F
149891

Circuit-breaker, 4p, 3200 A, fixed
Circuit-breaker IZMX40 ( Air circuit-breakers/switch-disconnectors), 4 pole, Current Range: Up to 4000 A, Rated current = rated uninterrupted current( In = Iu): 3200 A, Rated ultimate short-circuit breaking capacity up to 440V/690V 42/42( Icu): 85 kA, Rated service short-circuit breaking capacity up to 440V/690V 42/42( Ics): 85 kA, Overload release, min.( Ir): 1600 A, Overload release, max.( Ir): 3200 A, Installation type: Fixed, Standard/Approval: IEC, Protective function: System protection

Product range	Air circuit-breakers/switch-disconnectors
Product range	Open circuit-breakers
Current Range	Up to 4000 A
Protective function	System protection
Installation type	Fixed
Construction size	IZMX40
Release system	Electronic release
Standard/Approval	IEC
Number of poles	4 pole
Degree of Protection	IP20, IP55 with protective cover, IP41 door sealing frame
Rated current = rated uninterrupted current [In = Iu]	optionally fittable by user with comprehensive accessories
Rated ultimate short-circuit breaking capacity up to 440V/690V 42/42 [Icu ]	3200 A
Rated service short-circuit breaking capacity up to 440V/690V 42/42 [Ics ]	85 kA
Overload release, min. [Ir ]	85 kA
Overload release, max. [Ir ]	1600 A
Non-delayed [Ii = In x …]	3200 A
Notes	2 - 12
Standards	Main terminals must be separately ordered.
Ambient temperature >Storage [ϑ]	IEC/EN 60947
Ambient temperature >Operating (open)	-40 - +70 °C
Mounting position	-25 - +70 °C
Utilization category
Degree of Protection
Direction of incoming supply	B
Rated current = rated uninterrupted current [In = Iu]	IP20, IP55 with protective cover, IP41 door sealing frame
Rated uninterrupted current at 50 °C [Iu]	as required
Rated uninterrupted current at 60 °C [Iu]	3200 A
Rated uninterrupted current at 70 °C [Iu]	3200 A
Rated impulse withstand voltage [Uimp]	3200 A
Rated operational voltage [Ue]	3200 A
Use in IT electrical power networks up to U = 440 V [IIT ]	12000 V AC
Overvoltage category/pollution degree	690 V AC
Rated insulation voltage [Ui ]	57.6 kA
Rated short-circuit making capacity [Icm ] >up to 440 V 50/60 Hz [Icm ]	III/3
Rated short-circuit making capacity [Icm ] >up to 690 V 50/60 Hz [Icm ]	1000 V
Rated short-time withstand current 50/60 Hz >t = 1 s [Icw ]	187 kA
Rated short-time withstand current 50/60 Hz >t = 3 s [Icw ]	166 kA
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Icu O-t-CO >up to 240 V 50/60 Hz [Icu ]	85 kA
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Icu O-t-CO >up to 440 V 50/60 Hz [Icu ]	66 kA
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Icu O-t-CO >up to 690 V 50/60 Hz [Icu ]	85 kA
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Ics O-t-CO-t-CO >up to 240 V 50/60 Hz [Ics ]	85 kA
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Ics O-t-CO-t-CO >up to 440 V 50/60 Hz [Ics ]	75 kA
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Ics O-t-CO-t-CO >up to 690 V 50/60 Hz [Ics ]	85 kA
Operating times >Closing delay via spring release	85 kA
Operating times >Total opening delay via shunt release	75 kA
Operating times >Total opening delay via undervoltage release	35 ms
Operating times >Total opening delay on non-delayed short-circuit release (up to complete arc quenching)	22 ms
Maximum operating frequency [Operations/h]	37 ms
Heat dissipation at rated current In >Fixed mounting	45 ms
Fixed mounting >3-pole	60
Fixed mounting >4-pole	385 W
Copper bar >Fixed mounting >Black	43 kg
Rated operational current for specified heat dissipation [In]	56 kg
Equipment heat dissipation, current-dependent [Pvid]	3 x 80 x 10 mm
Operating ambient temperature min.	These are values used in separate switchgear. The actual values will depend on the temperature around the circuit-breaker, which is influenced by the ambient temperature, the degree of protection (IP), the mounting height, the partitions, and any external ventilation. Depending on the specific switchgear design, this may result in derating, which can then be compensated for by increasing the cross-sectional area. Temperature rise tests in the specific switchgear can provide specific and detailed information.
Operating ambient temperature max.	Permissible continuous current for circuit‐breakers operating in switchboards at various internal ambient temperatures. The switchboard’s internal ambient temperature should be estimated using the calculation methods of IEC regulation.
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	3200 A
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	385 W
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	-25 °C
10.2 Strength of materials and parts >10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects	+70 °C
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.5 Lifting	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.6 Mechanical impact	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.7 Inscriptions	Meets the product standard´s requirements.
10.3 Degree of protection of ASSEMBLIES	Meets the product standard´s requirements.
10.4 Clearances and creepage distances	Does not apply, since the entire switchgear needs to be evaluated.
10.5 Protection against electric shock	Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components	Meets the product standard´s requirements.
10.7 Internal electrical circuits and connections	Does not apply, since the entire switchgear needs to be evaluated.
10.8 Connections for external conductors	Meets the product standard´s requirements.
10.9 Insulation properties >10.9.2 Power-frequency electric strength	Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties >10.9.3 Impulse withstand voltage	Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties >10.9.4 Testing of enclosures made of insulating material	Is the panel builder´s responsibility.
10.10 Temperature rise	Is the panel builder´s responsibility.
10.11 Short-circuit rating	Is the panel builder´s responsibility.
10.12 Electromagnetic compatibility	Is the panel builder´s responsibility.
10.13 Mechanical function	Is the panel builder´s responsibility.
Rated permanent current Iu	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Rated voltage	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Overload release current setting	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Adjustment range short-term delayed short-circuit release	3200 A
Adjustment range undelayed short-circuit release	690 - 690 V
Integrated earth fault protection	85 kA
Type of electrical connection of main circuit	1600 - 3200 A
Device construction	0 - 0 A
Suitable for DIN rail (top hat rail) mounting	6400 - 38400 A
DIN rail (top hat rail) mounting optional	No
Number of auxiliary contacts as normally closed contact	Rail connection
Number of auxiliary contacts as normally open contact	Built-in device fixed built-in technique
Number of auxiliary contacts as change-over contact	No
With switched-off indicator	No
With under voltage release	0
Number of poles	0
Position of connection for main current circuit	2
Type of control element	Yes
Complete device with protection unit	No
Motor drive integrated	4
Motor drive optional	Back side
Degree of protection (IP)	Push button

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