3. Main Function
● Combined short-circuit and
leakage protection into one product overcurrent
● Digital display the value of
three-phase currents(Optional), voltage,
leakage current and the maximum phase
● Adjust the overload protection
value as the capacity of distribution transformer or the actual
load (Optional)
● Automatically display the cause
of cascading trip-out, fault phase and current
● Will send alerts once exceed the
limit of leakage current, but not trip out when turn on the warning
function
● Query-able for all previous
tripping time(Optional),
reasons.
● An intelligent tracking for line
situation, or set operation value as period(Optional)
● Standard communication interface
be builted-in for the automatic system of the power
network
● Be able to identify and separate
surge leakage current(Optional)
4. Model Description
TZB/□.3N-K
TZB: Residual Current operated
circuit breaker.
□ : Rated current of
frame
3N : three phase four
wire
H : Application
Code
5. Product Category
Basic/Type E: Protection for short
circuit, overload and leakage.
Standard/Type D: Could adjust the
current value of the overload
Surge/Type T: The current surge
could be identified
Customization: Customized as
clients' require
6. Techinical Data
Rated current:
**0/**0/**0A
Rated voltage: **0V
Applicable circuit: AC *0Hz or
*0Hz
Surge leakage operation
value: ≤*0mA
Adjustable range of load current:
*0~**0A
Rated residual operating current:
*5/**0/**0/**0/**0/**0mA
Rated breaking time:
≤0.3S ≤0.5S
Dead time of reclosing:
****0S
Rated residual non operating
current: ≥1/2 I△n
ICU: *0KA
7. Overall & Installation Dimensions