AX-1 Auxiliary contact

AX-1-Accessories (Final Power Distribution)

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AX-1-Accessories (Final Power Distribution)-Side-1

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AX-1-Accessories (Final Power Distribution)

AX-1-Accessories (Final Power Distribution)-Front

AX-1-Accessories (Final Power Distribution)-Side-1

AX-1-Accessories (Final Power Distribution)-Side-2

AX-1 Auxiliary contact

The CHINT AX-1 Auxiliary Contact is a compact signaling accessory designed for DZ158 and DZ158LE circuit breakers. It provides clear indication of the device’s ON/OFF status and can be mounted on the left side of the breaker using its dedicated pin. Built to IEC/EN 60947-5-1 standards, this auxiliary contact ensures reliable electrical signaling and long service life in both residential and industrial power distribution systems. Its modular DIN-rail design allows quick installation and secure operation under demanding electrical environments.

Product Information

Applicable Devices: DZ158, DZ158LE circuit breakers
Function: Indicates the position of the breaker’s contacts (ON/OFF signaling)
Mounting Position: Left side of MCB/RCBO via special mounting pin
Standard Compliance: IEC/EN 60947-5-1
Electrical Configuration: 1 Normally Open (1N/O) + 1 Normally Closed (1N/C) contact
Rated Voltage (Us):
- AC 415V, 50/60Hz
- DC 125V
Rated Current (In):
- 3A (AC)
- 1A (DC)
Rated Impulse Withstand Voltage (Uimp): 4 kV
Dielectric Strength (1 min): 2 kV
Insulation Voltage (Ui): 500V
Protection Degree: IP20
Electrical Life: 6,050 operations
Mechanical Life: 10,000 operations
Ambient Temperature: –5°C to +40°C (average ≤ 35°C)
Storage Temperature: –25°C to +70°C
Terminal Connection Type: Cable terminals
Terminal Size: 2.5 mm² (AWG 18–14)
Tightening Torque: 0.8 N·m (7 in·lbs)
Mounting Type: Modular DIN-rail installation (TH35)
Overall Dimensions (mm):
- Height: 79 ±0.6
- Width: 9.3
- Depth: 73.7 ±0.6
- Mounting hole spacing: 45 ±0.5 × 62 ±0.6

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AX-1-ACCESSORIES-(FINAL-POWER-DISTRIBUTION)-Catalog.pdf

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2025-12-10

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2004-AX-1-Accessories (Final Power Distribution)-Manual.pdf

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2024-09-22

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2201-AX-1-Accessories (Final Power Distribution)-CE Declaration Certificate.pdf

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2024-09-22

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1803-AX-1-Accessories (Final Power Distribution)-CE Certificate.pdf

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2024-09-22

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1803-AX-1-Accessories (Final Power Distribution)-TUV Certificate.pdf

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2024-09-22

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AX-1-Accessories (Final Power Distribution)-Drawing-2D.dwg

2024-09-22

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AX-1-Accessories (Final Power Distribution)-Drawing-3D.stp

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2024-09-22

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FAQs

What is the main function of the AX-1 Auxiliary Contact?

It provides remote or local signaling of the breaker’s contact position, showing whether the DZ158 or DZ158LE is open or closed.

How is the AX-1 installed?

The device is mounted on the left side of the circuit breaker using its built-in special pin, then secured onto a standard DIN rail for easy integration.

Is the AX-1 suitable for both AC and DC systems?

Yes. It supports both AC 415V / 3A and DC 125V / 1A, ensuring versatile use across various low-voltage circuits.

How durable is the AX-1 in operation?

The auxiliary contact offers a mechanical life of 10,000 cycles and an electrical life of over 6,000 operations, ensuring long-term reliability in control panels and protection systems.

What environmental conditions can it operate under?

It functions efficiently between –5°C and +40°C, with storage capability from –25°C to +70°C, and complies with IP20 protection standards for safe indoor use.