DZ158 Moulded Case Circuit Breaker

DZ158-125 125A 1P-MCCB

DZ158-125 125A 2P-MCCB

DZ158-125 125A 3P-MCCB

DZ158-125 125A 4P-MCCB

DZ158-125 125A 1P-MCCB-Front

DZ158-125 125A 2P-MCCB-Front

DZ158-125 125A 3P-MCCB-Front

DZ158-125 125A 4P-MCCB-Front

DZ158-125-MCCB-1

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DZ158-125-MCCB-Front-2

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DZ158-125H 125A 1P-MCCB

DZ158-125H 125A 2P-MCCB

DZ158-125H 125A 3P-MCCB

DZ158-125H 125A 4P-MCCB

DZ158-125H 125A 1P-MCCB-Front

DZ158-125H 125A 2P-MCCB-Front

DZ158-125H 125A 3P-MCCB-Front

DZ158-125H 125A 4P-MCCB-Front

DZ158-125H-MCCB-1

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DZ158-125 125A 1P-MCCB

DZ158-125 125A 2P-MCCB

DZ158-125 125A 3P-MCCB

DZ158-125 125A 4P-MCCB

DZ158-125 125A 1P-MCCB-Front

DZ158-125 125A 2P-MCCB-Front

DZ158-125 125A 3P-MCCB-Front

DZ158-125 125A 4P-MCCB-Front

DZ158-125-MCCB-1

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DZ158-125-MCCB-Front-2

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DZ158-125H 125A 1P-MCCB

DZ158-125H 125A 2P-MCCB

DZ158-125H 125A 3P-MCCB

DZ158-125H 125A 4P-MCCB

DZ158-125H 125A 1P-MCCB-Front

DZ158-125H 125A 2P-MCCB-Front

DZ158-125H 125A 3P-MCCB-Front

DZ158-125H 125A 4P-MCCB-Front

DZ158-125H-MCCB-1

DZ158-125H-MCCB-3

DZ158-125H-MCCB-Front-2

DZ158-125H-MCCB-Side

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.

Product Information

Function: Circuit protection (overload & short-circuit), switching, isolation
Standard Compliance: IEC/EN 60947-2, UL 1077
Rated Current (In): 63 A, 80 A, 100 A, 125 A
Rated Voltage (Ue):
- AC 230/400 ~ 240/415 V
- DC 60/110 ~ 110/220 V
Insulation Voltage (Ui): 500 V
Rated Frequency: 50/60 Hz
Rated Breaking Capacity (Icu): 6 kA / 10 kA (depending on model)
Poles Available: 1P, 2P, 3P, 4P
Thermo-Magnetic Release Characteristic: 8–12 In
Rated Impulse Withstand Voltage (Uimp): 4 kV
Dielectric Test Voltage: 1.89 kV for 1 minute
Pollution Degree: 3
Protection Degree: IP20
Mechanical Life:
- 8,500 operations (In = 63 A, 80 A, 100 A)
- 7,000 operations (In = 125 A)
Electrical Life:
- 1,500 operations (In = 63 A, 80 A, 100 A)
- 1,000 operations (In = 125 A)
Ambient Temperature (operation): –5 °C to +40 °C (average ≤ 35 °C)
Storage Temperature: –25 °C to +70 °C
Reference Temperature (thermal element): 30 °C
Terminal Connection Type: Cable (top or bottom)
Terminal Size: 16 – 50 mm² (6–0 AWG)
Tightening Torque: 3.5 N·m (31 in·lbs)
Mounting Type: DIN rail EN 60715 (35 mm) via fast clip
Accessory Compatibility: Auxiliary contact available
Overall Dimensions (approx., 4P model):
- Height: 84.5 mm
- Width: 108 mm
- Depth: 65.5 mm

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DZ158-MCCB-Catalog.pdf

595.95KB

2025-12-10

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2004-DZ158-MCCB-Manual EN.pdf

130.29KB

2025-05-14

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2503-DZ158-MCCB-CE(TUV) Certificate.pdf

4.63MB

2025-07-17

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2410-DZ158-125H-MCCB-RCC LOA Certificate.pdf

46.62KB

2025-07-17

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2312-DZ158-125H-MCCB-IMQ Certificate.pdf

703.28KB

2025-07-17

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2310-DZ158-MCCB- SAA Certificate.pdf

295.93KB

2024-09-22

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2206-DZ158-MCCB-EAC Certificate.pdf

619.14KB

2024-09-22

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2206-DZ158-MCCB-CB Certificate.pdf

595.22KB

2024-09-22

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2206-DZ158-MCCB-SEMKO Certificate.pdf

760.36KB

2024-09-22

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2206-DZ158-MCCB-CE(Intertek) Certificate.pdf

384.62KB

2025-07-17

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2201-DZ158-MCCB-CE RoHS Declaration Certificate.pdf

873.41KB

2024-09-22

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2108-DZ158-MCCB- UKCA Certificate.pdf

633.12KB

2024-09-22

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1710-DZ158-MCCB-UL Certificate.pdf

245.99KB

2024-09-22

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0912-DZ158-MCCB-3P 63A-KC Certificate.pdf

758.69KB

2024-09-22

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0912-DZ158-MCCB-2P 63A-KC Certificate.pdf

749.59KB

2024-09-22

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0911-DZ158-MCCB-4P 63A-KC Certificate.pdf

748.65KB

2024-09-22

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DZ158-3P-3D(V1)-MCCB-Drawing.x_t

2024-09-22

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DZ158-125-2D(V1)-MCCB-Drawing.dwg

2024-09-22

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DZ158-4P-3D(V1)-MCCB-Drawing.x_t

2024-09-22

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DZ158-1P-3D(V1)-MCCB-Drawing.x_t

2024-09-22

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DZ158-2P-3D(V1)-MCCB-Drawing.x_t

2024-09-22

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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.