D165T LV Moulded Case Pole Mounted Breaker Digital Trip Unit

  • D165T LV Moulded Case Pole Mounted Breaker Digital Trip Unit
Key attributes
Brand Vziman
Model NO. D165T LV Moulded Case Pole Mounted Breaker Digital Trip Unit
Rated voltage 440V
Rated normal current 265A
Series D165T
Product descriptions from the supplier
Description

 D165T circuit break Product Description

The D165T circuit break is a professional LV Pole-mounted circuit break with a moulded-case structure, specially engineered for the protection of distribution transformers on low-voltage overhead lines. Rated at 165A and 440V, the D165T circuit break features a 4-pole design, providing reliable and all-round protection against overloads, short-circuits and phase imbalances for transformers, perfectly matching the operational protection needs of low-voltage overhead power distribution systems. Equipped with a high-precision digital trip unit, the D165T circuit break can be flexibly and accurately set to safeguard 50kVA to 160kVA transformers, while its integrated air-arc extinction technology and weather-resistant fiberglass shell with IP31 rating make the LV Pole-mounted circuit break an ideal protection solution for a variety of outdoor low-voltage power distribution scenarios.

 D165T circuit break Product Features

  • Precise Digital Protection:The D165T circuit break is built with a dedicated digital trip unit that supports precise parameter setting for different transformer capacities (50kVA-160kVA), realizing targeted and intelligent protection control for the equipment protected by the LV Pole-mounted circuit break.
  • Effective Arc Extinction & Protection:Adopting air-arc extinction technology with metal partition chambers, the D165T circuit break achieves a 4000A breaking capacity, which can quickly and effectively cut off arcs during fault conditions, ensuring the protection reliability of the LV Pole-mounted circuit break in low-voltage power distribution systems.
  • Robust Outdoor Design:The D165T circuit break has an IP31 protection rating and a durable fiberglass shell, which can effectively resist harsh outdoor environmental factors and ensure the stable and long-term operation of the LV Pole-mounted circuit break in complex outdoor working conditions.

 D165T circuit break Specification

Working Ambient

  • Temperature:The D165T circuit break is adaptable to a wide temperature range of -40°C ~ +70°C, with strong temperature resistance to meet the outdoor operation requirements of the LV Pole-mounted circuit break in different climate zones.
  • Humidity:The LV Pole-mounted circuit break can operate normally under 100% humidity conditions, and the D165T circuit break has excellent moisture resistance to avoid performance failure caused by high humidity.
  • Altitude:Applicable for use at an altitude of ≤2000m, the D165T circuit break can maintain stable protection performance at this altitude range, matching the installation and operation needs of the LV Pole-mounted circuit break in different topographical areas.
  • Wind speed:The LV Pole-mounted circuit break can withstand a maximum wind speed of ≤40m/s, and the structural design of the D165T circuit break ensures its firm and reliable outdoor pole-mounted installation under strong wind conditions.

Note: No fire, no explosion hazards, no chemical c.rrosion and recurrent severe vibration.

 D165T circuit break Technical Parameters

  Circuit Breakers
D165T D265T
Reference strandard NH63-S-11 NH63-S-11
Voltage rating 440V 440V   
Current rating 165A 265A
Cutout power 4000A 6400A
Closing power 6800A 11700A
Number of poles 4 4
Number of outputs 1 outputs 2 outputs
Cable sections 25/70mm*2 50/150mm*2
Breakdown voltage pulse/earth at 50Hz between poles 20KV
10KV
4KV
20KV
10KV
4KV
Control system Manual Manual
Installation on post on post

 D165T circuit break Application Scenario

Low-voltage Overhead Power Distribution for Rural Residential Areas

The D165T circuit break is widely applied in the low-voltage overhead power distribution systems of rural residential areas as a core LV Pole-mounted circuit break, dedicated to protecting the 50kVA-160kVA distribution transformers that supply power to rural villages and residential clusters. Aimed at the characteristics of rural low-voltage overhead lines such as scattered load distribution, easy phase imbalance and complex outdoor operating environments (variable temperature, high humidity, strong wind), the D165T circuit break provides real-time protection against overloads and short-circuits via its precise digital trip unit, and its IP31-rated fiberglass shell and air-arc extinction technology ensure the LV Pole-mounted circuit break operates stably in rural outdoor conditions. It effectively avoids power outages of rural residential power supply caused by transformer faults, guarantees the continuous and reliable low-voltage power supply for rural daily life, and optimizes the safety and operation efficiency of rural low-voltage overhead power distribution networks.

 D165T circuit break Product Photos

FAQ
Q: What protection functions does the D165T circuit break provide for transformers?
A:

The D165T circuit break offers all-round reliable protection against overloads, short-circuits and phase imbalances for distribution transformers, solving the common fault problems of low-voltage overhead line transformers. Equipped with a high-precision digital trip unit, the D165T circuit break can be flexibly set according to different transformer capacities, realizing precise fault response and protection. As a professional LV Pole-mounted circuit break, it can quickly cut off fault circuits to avoid transformer damage, ensuring the stable operation of low-voltage power distribution systems.

Send inquiry
+86
Click to upload file
Download
Experts Electrical is dedicated to serving the personnel in the global power industry.
Join Experts Electrical, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!
App Store
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.