EKF
Residual current circuit breaker AD-4 4P (S) 40A characteristic C 300mA type AC electronic selective 4.5kA PROXIMA EKF DA4-40-300S-pro
SKU: DA4-40-300S-pro
ETIM: EC000905
1,425 ₽
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The AD-2(4) (S) EKF PROxima residual current circuit breaker (RCBO) is a device that combines the functions of a circuit breaker with a residual current device. When the circuit breaker detects a leakage current (fault) to ground or an overcurrent (overload or short circuit) in the protected network section, the device trips, leading to the disconnection of the protected network. A special feature of EKF residual current breakers is the presence of a built-in surge protection unit. AD-2 and AD-4 EKF PROxima are available in standard and selective (AD-2S, AD-4S) versions.
Mounting installation depth
45 мм
For flush mounting
Yes
False tripping protection
No
Overvoltage category
3
Current limiting class
3
Number of protected poles
4
Rated short-circuit breaking capacity Icn per EN 61009-1
4.5 кА
Rated impulse voltage
6 кВ
Rated voltage
400 В
Rated insulation voltage Ui
500 В
Rated current
40 А
Rated leakage current
0.3 мА
Total number of poles
2
Ambient operating temperature from
-40...50 град.C
Current type
AC (alternating)
With switched neutral conductor
Yes
With interlock device
No
Stranded flexible conductor cross-section from
0...16 кв.мм
Solid conductor cross-section from
0...25 кв.мм
Pollution degree (number)
3
IP protection rating
IP20
Residual current type
AC (alternating)
Resistance to current surges
4.5 кА
Tripping characteristic
Selective
Tripping characteristic
C
Frequency (Hz)
50 Hz
Width in modular units
7.5
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