25
Internal Electrical Accessories
C
Use UVT time delay controller to prevent the trip of a circuit breaker due to the operation of instantaneous type
UVT when voltage dips occurred instantly on main or control power supply.
If combining UVT time delay controller and instantaneous type UVT mounted in circuit breaker, it makes a trip
operation after a certain time when its main or control voltage drop below specified value to prevent the
unexpected trip operation caused from instant blackout.
It is the outdoor type and can be used by mounting to inside distribution panel or the cradle of circuit breaker.
It provides control signal (output contact) to indicate the trip status of circuit breaker caused from UVToperation
for indoor type. If control voltage supplied to UVT under normal operation, b contact is conducted and if circuit
breaker is tripped due to UVT operation, a contact is conducted.
Rated Voltage[Vn]
Power Consumption(VA or W)Operating Voltage Range [V]
Trip Time
[s]
24 ~ 30
100 ~ 130
200 ~ 250
-
0.65 ~ 0.85 Vn
0.4 ~ 0.65 Vn
200 5
Note) Operating Voltage Range is the min. rated standard for each rated voltage (Vh).
0.5, 1,
1.5, 3
DC [V]
48
100 ~ 130
200 ~ 250
380 ~ 480
AC [V]
Inrush
Pick-Up
Drop-Out
Steady-State
Rated Voltage and Characteristics of UVT Time Delay Controller
Rated Voltage[V]
Rated Current(A), Resistive Load
Max. Switching Voltage(V)
Max. Switching Current(V)
24V DC
120V AC
250V AC
12
12
10
110V DC
250V A C
15
Rated Output Contact
External Configuration and Wiring Diagram
3. UVT Time Delay Controller
External Configuration Wiring Diagram
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