CEM16 Moulded Case Circuit Breaker
Moulded Case Circuit Breaker


Specifications
Type CEM16-160 1P CEM16-160 CEM16-250
Rated uninterrupted                                                              [A]
current,Iu[A]
160 160 250
Poles 1 3/4 3/4
Rated service voltage,Ue (AC)50-60Hz    [V] 240 690 690
(DC)                  [V] 125 500 500

Rated impulse withstand
voltage, Uimp                                                                      [kV]

8 8 8

Rated insulation voltage,Ui                                                   [V]

500 800 800

Test voltage at industrial
frequency for 1 min.                                                             [V]

3000 3000 3000
Rated ultimate short-circuit breaking capacity, Icu B N S H L N S
    (AC)50-60Hz 220/230V                                                [kV] 25* 65 85 100 120 50 85
    (AC)50-60Hz 380/415V                                                [kV] - 36 50 70 85 36 50
    (AC)93-60Hz 440V                                                       [kV] - 30 45 55 75 25 40
    (AC)50-60Hz 500V                                                       [kV] - 25 30 36 50 20 30
    (AC)50-60Hz 690V                                                       [kV] - 6 7 8 10 5 8
Mechanical life [Naoperalios] 25000 25000 25000
[No.Hourly operalios] 240 240 240
Eledital life @415V AC [Naoperalios] 8000 8000 8000
[No.Hourly operalios] 120 120 120

Type CEM16-250/320 CEM16-400/630 CEM16-630/800/1000
Rated uninterrupted                                                              [A]
current,Iu[A]
250/320 400/630 630/800/1000
Poles                                                                                  [Nr] 3/4 3/4 3/4
Rated service voltage,Ue (AC)50-60Hz    [V] 690 690 690
(DC)                  [V] 750 750 750

Rated impulse withstand
voltage, Uimp                                                                      [kV]

8 8 8

Rated insulation voltage,Ui                                                   [V]

1000 1000 1000

Test voltage at industrial
frequency for 1 min.                                                             [V]

3500 3500 3500
Rated ultimate short-circuit breaking capacity, Icu N S H L V N S H L V N S H L
    (AC)50-60Hz 220/230V                                                [kV] 70 85 100 200 300 70 85 100 200 300 70 85 100 200
    (AC)50-60Hz 380/415V                                                [kV] 36 50 70 120 200 36 50 70 120 200 36 50 70 100
    (AC)93-60Hz 440V                                                       [kV] 30 40 65 100 180 30 40 65 100 180 30 45 50 80
    (AC)50-60Hz 500V                                                       [kV] 25 30 50 85 150 25 30 50 85 150 25 35 50 65
    (AC)50-60Hz 690V                                                       [kV] 20 25 40 70 80 20 25 40 70 80 20 22 25 30
Mechanical life [Naoperalios] 20000 20000 20000
[No.Hourly operalios] 240 120 120
Eledital life @415V AC [Naoperalios] 8000(250A)-6000(320A) 7000(400A)-5000(630A) 7000(630A)-5000(800A)-4000(1000A)
[No.Hourly operalios] 120 120 120

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