> EATON - MOELLER>IZM20B4-A20F 123524 ELECTRIC Automatic switch, 4P, 2000A, fixed
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IZM20B4-A20F 123524 EATON ELECTRIC Automatic switch, 4P, 2000A, fixed

IZM20B4-A20F

123524

EATON-MOELLER

Automatic switch, 4P, 2000A, fixed

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Delivery programme
Product range
 Air circuit-breakers/switch-disconnectors
Product range
 Open circuit-breakers
Current Range
 over 4000 A
Protective function
 System protection
Installation type
 Fixed
Construction size
 IZM20
Release system
 Electronic release
Standard/Approval
 IEC
Number of poles
 4 pole
Degree of Protection
 IP20, IP55 with protective cover, IP41 with door sealing frame
Rated current = rated uninterrupted current
 In= Iu A 2000
Breaking capacity Icu = Ics to 440 V 50/60 Hz
 Icu kA 50
Breaking capacity Ics to 440 V 50/60 Hz
 Ics kA 50
Overload release, min.
 Ir A 800
Overload release, max.
 Ir A 2000
Non-delayed
 Ii= Inx … 2 - 10
Notes

Including rear connection main terminals and secondary terminal blocks according to ordered breaker options.

Technical data
General
Standards
 IEC/EN 60947
Ambient temperature
Storage
 ϑ °C -25 - +70 (device with LCD-display -20 - +70)
Operating (open)
 °C -25 - +70 (device with LCD-display -20 - +70)
Mounting position
 >
>
Utilization category
 B
Degree of Protection
 IP20, IP55 with protective cover, IP41 with door sealing frame
Direction of incoming supply
 as required
Main conducting paths
Rated current = rated uninterrupted current
 In= Iu A 2000
Rated uninterrupted current at 50 °C
 Iu A 2000
Rated uninterrupted current at 60 °C
 Iu A 1800
Rated uninterrupted current at 70 °C
 Iu A 1650
Rated impulse withstand voltage
 Uimp V AC 8000
Rated operational voltage
 Ue V AC 690
Use in IT electrical power networks up to U = 440 V
 IIT kA 32
Overvoltage category/pollution degree
 III/3
Rated insulation voltage
 Ui V 1000
Switching capacity
Rated short-circuit making capacity
 Icm
up to 440 V 50/60 Hz
 Icm kA 105
up to 690 V 50/60 Hz
 Icm kA 105
Rated short-time withstand current 50/60 Hz
t = 1 s
 Icw kA 50
t = 3 s
 Icw kA 30
Rated short-circuit breaking capacity Icn
 Icn
IEC/EN 60947 operating sequence IcuO-t-CO
up to 240 V 50/60 Hz
 Icu kA 50
up to 440 V 50/60 Hz
 Icu kA 50
up to 690 V 50/60 Hz
 Icu kA 50
IEC/EN 60947 operating sequence IcsO-t-CO-t-CO
up to 240 V 50/60 Hz
 Ics kA 50
up to 440 V 50/60 Hz
 Ics kA 50
up to 690 V 50/60 Hz
 Ics kA 50
Operating times
Closing delay via spring release
 ms 30
Break times
 ms 40
Total opening delay via shunt release
 ms 35
Total opening delay via undervoltage release
 ms 35/70
Total opening delay on non-delayed short-circuit release (up to complete arc quenching)
 ms 35
Maximum operating frequency
 Operations/h 60
Heat dissipation at rated current In
Fixed mounting
 W 280
Withdrawable units (switch with cassette)
 W 560
Weight
Fixed mounting
3-pole
 kg 43
4-pole
 kg 54
Withdrawable
3-pole
 kg 48
4-pole
 kg 62
Cassette
3 pole
 kg 34
4 pole
 kg 38
Terminal capacities
Copper bar
Fixed mounting
Black
 mm 3 x 5 x 100
Withdrawable units
Black
 mm 3 x 5 x 100


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.
Other technical data (sheet catalogue)
 >Tripping characteristics for selective protection
>Notes - tripping characteristics
Design verification as per IEC/EN 61439(Show features)(Hide features)
Technical data for design verification
Operating ambient temperature min.
 °C -25
Operating ambient temperature max.
 °C 70
Dimensions
>
Additional product information (links)
> >Tripping characteristics for selective protection
> >Notes - tripping characteristics

Datasheet - PDF

▲
Title: Size: Type:
PDF CATALOGUE EATON EN .pdf 38 Mbytes
IZM20B4-A20F 123524 123524_EN.pdf 220 Kbytes IZM20B4-A20F 123524 123524_EN.pdf

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