DZ158 Moulded Case Circuit Breaker

The CHINT DZ158 Moulded Case Circuit Breaker (MCCB) is designed to provide reliable protection for electrical circuits against overload and short-circuit faults, as well as to serve as a manual switch or isolator. Built for 230/400~240/415 V AC and 60/110–220 V DC networks, it offers superior safety and performance in industrial, commercial, and residential systems. The compact design, robust mechanical endurance, and compatibility with auxiliary accessories make the DZ158 an ideal choice for dependable circuit protection and easy system integration.

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FAQs

What are the main functions of the DZ158 MCCB?

It provides overload and short-circuit protection, along with switching and isolation functions in low-voltage distribution systems.

What voltage and current ranges does it support?

The DZ158 supports 230/400 ~ 240/415 V AC and 60/110 ~ 110/220 V DC, with rated currents from 63 A to 125 A.

What makes the DZ158 suitable for industrial and commercial use?

It features high breaking capacities (6 kA / 10 kA), IP20 protection, and strong mechanical endurance (up to 8,500 operations), making it durable under frequent load switching.

How does ambient temperature affect performance?

The breaker’s rated current is based on a 30 °C reference. For higher ambient temperatures, derating applies—for example, at 60 °C, only ≈ 86% of rated current can be maintained.

Can the DZ158 be combined with accessories?

Yes. The MCCB is compatible with auxiliary contacts and other CHINT accessories for status indication and system integration.

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DZ158 Moulded Case Circuit Breaker

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