IZMX40B4-P08W-1
183779 IZMX40B4-P08W-1
183779

Circuit-breaker, 4 pole, 800 A, 66 kA, P measurement, IEC, Withdrawable
Circuit-breaker IZMX40 ( Air circuit-breakers/switch-disconnectors), 4 pole, Current Range: Up to 4000 A, Rated current = rated uninterrupted current( In = Iu): 800 A, up to 440 V 50/60 Hz( Icu): 66 kA, up to 440 V 50/60 Hz( Ics): 66 kA, Overload release, min.( Ir): 320 A, Overload release, max.( Ir): 800 A, Installation type: Withdrawable, Standard/Approval: IEC, Protective function: P measurement

Product range	Air circuit-breakers/switch-disconnectors
Product range	Open circuit-breakers
Current Range	Up to 4000 A
Protective function	P measurement
Installation type	Withdrawable
Construction size	Cassette must be separately ordered.
Release system	IZMX-DTP-PTM external voltage measuring module required
Standard/Approval	IZMX40
Number of poles	Electronic release
Degree of Protection	IEC
Rated current = rated uninterrupted current [In = Iu]	4 pole
up to 440 V 50/60 Hz [Icu ]	IP31 with door seals, IP55 with protective cover
up to 440 V 50/60 Hz [Ics ]	suitable for zone selectivity suitable for communication with integrated system monitor with integrated test possibility With graphic LCD display optionally fittable by user with comprehensive accessories
Overload release, min. [Ir ]	800 A
Overload release, max. [Ir ]	66 kA
Non-delayed [Ii = In x …]	66 kA
Delayed [Isd = Ir x …]	320 A
Standards	800 A
Ambient temperature >Storage [ϑ]	2 - 15, OFF
Ambient temperature >Ambient temperature	1,5 - 10
Mounting position	IEC/EN 60947
Utilization category	-20 - +70 °C
Degree of Protection	-20 - +70 °C
Direction of incoming supply
Rated current = rated uninterrupted current [In = Iu]
Rated uninterrupted current at 50 °C [Iu]	B
Rated uninterrupted current at 60 °C [Iu]	IP31 with door seals, IP55 with protective cover
Rated uninterrupted current at 70 °C [Iu]	as required
Rated impulse withstand voltage [Uimp]	800 A
Rated operational voltage [Ue]	800 A
Use in IT electrical power networks up to [U]	800 A
Overvoltage category/pollution degree	800 A
Rated insulation voltage [Ui ]	12000 V AC
Rated short-circuit making capacity [Icm ] >up to 440 V 50/60 Hz [Icm ]	690 V AC
Rated short-circuit making capacity [Icm ] >up to 690 V 50/60 Hz [Icm ]	440 V
Rated short-time withstand current 50/60 Hz >t = 1 s [Icw ]	III/3
Rated short-time withstand current 50/60 Hz >t = 3 s [Icw ]	1000 V
Rated short-circuit breaking capacity Icn [Icn ] >IEC/EN 60947 operating sequence Icu O-t-CO >up to 240 V 50/60 Hz [Icu ]	145 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 ]	145 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 ]	66 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 ]	53 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 ]	66 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 ]	66 kA
Operating times >Closing delay via spring release	66 kA
Operating times >Total opening delay via shunt release	66 kA
Operating times >Total opening delay via undervoltage release	66 kA
Operating times >Total opening delay on non-delayed short-circuit release (up to complete arc quenching)	66 kA
Lifespan >Lifespan, mechanical [Switching cycles (ON/OFF)]	35 ms
Lifespan >Lifespan, mechanical with maintenance [Switching cycles (ON/OFF)]	35 ms
Lifespan >Lifespan, electrical [Switching cycles (ON/OFF)]	40 ms
Lifespan >Lifespan, electrical with maintenance [Switching cycles (ON/OFF)]	52 ms
Maximum operating frequency [Operations/h]	12500
Heat dissipation at rated current In >Withdrawable units (switch with cassette)	25000.
Withdrawable >4-pole	10000
Cassette >4 pole	20000.
Copper bar >Withdrawable units >Black	60
Notes	65 W
Rated operational current for specified heat dissipation [In]	83 kg
Equipment heat dissipation, current-dependent [Pvid]	35 kg
Operating ambient temperature min.	1 x 60 x 10 mm
Operating ambient temperature max.	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.
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	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 >10.2.3.1 Verification of thermal stability of enclosures	External IZMX-DTP-PTM-1 voltage measuring module required (1 module is suitable for 16 circuit-breakers)
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	800 A
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	65 W
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation	-20 °C
10.2 Strength of materials and parts >10.2.5 Lifting	+70 °C
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	Meets the product standard´s requirements.
10.5 Protection against electric shock	Meets the product standard´s requirements.
10.6 Incorporation of switching devices and components	Does not apply, since the entire switchgear needs to be evaluated.
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	Meets the product standard´s requirements.
10.9 Insulation properties >10.9.4 Testing of enclosures made of insulating material	Does not apply, since the entire switchgear needs to be evaluated.
10.10 Temperature rise	Does not apply, since the entire switchgear needs to be evaluated.
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	Is the panel builder´s responsibility.
Rated voltage	Is the panel builder´s responsibility.
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Overload release current setting	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Adjustment range short-term delayed short-circuit release	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Adjustment range undelayed short-circuit release	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Integrated earth fault protection	800 A
Type of electrical connection of main circuit	690 - 690 V
Device construction	66 kA
Suitable for DIN rail (top hat rail) mounting	400 - 800 A
DIN rail (top hat rail) mounting optional	1600 - 8000 A
Number of auxiliary contacts as normally closed contact	1600 - 9600 A
Number of auxiliary contacts as normally open contact	No
Number of auxiliary contacts as change-over contact	Rail connection
With switched-off indicator	Built-in device slide-in technique (withdrawable)
With under voltage release	No
Number of poles	No
Position of connection for main current circuit	0
Type of control element	0
Complete device with protection unit	2
Motor drive integrated	Yes
Motor drive optional	No
Degree of protection (IP)	4

As Mnelko, we are a reliable partner in industrial automation solutions, offering high-quality and innovative products with a wide product range to meet all the needs of your business. Our product portfolio consists of solutions designed based on the principles of high performance, durability, and efficiency to support modern industrial processes.
All of our products ensure maximum reliability even in challenging working conditions and help your business operations run smoothly. The products we offer in industrial automation, energy management, cabling solutions, and many other areas adapt flexibly to the needs of different sectors.
Additionally, our products are manufactured using only high-quality materials and comply with international standards. Through the solutions we provide, we enable our customers to increase operational efficiency and optimize costs. Our company closely follows technological advancements and continuously offers innovative products to help our customers gain a competitive advantage.
On each of our product pages, you can find comprehensive information about technical details, areas of use, and product features. You can explore all the products you need to strengthen your industrial processes on our website and enjoy a seamless purchasing experience.