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JCSD Alarm Auxiliary Contact

MCB Accessories

JCSD Alarm Auxiliary Contact

After automatic release of the MCB and RCBO due to overload or short circuit, an indication of the position of the device's contacts becomes visible. This feature provides users with a clear visual signal, allowing them to easily identify the status of the contacts in a fault situation. Contains a special pin that can be easily installed on the left side of the MCB/RCBO, ensuring a safe and efficient installation process.


     The JCSD electrical auxiliary device is a modular fault contact used as a remote indication of tripping in the event of an associated equipment failure.  In rated current is 2mA to 100mA at 24VAC to 240VAC, operating frequency 50Hz to 60Hz, and 2mA to 100mA at 24VDC to 220VDC. It has 1 position switch with contact type 1 C/O. It is suitable for new or retrofit installations in small commercial, construction, critical buildings, healthcare, industrial, data centers and infrastructure.  SD is used for device short names or compatibility codes. A mechanical indicator is provided within the product for local signaling. It has a screw clamp terminal connection at the bottom and allows for rigid copper cables with cable cross sections from 0.5mm² to 2.5mm², flexible copper cables with cable cross sections 1.5mm² (2 cables) and flexible copper cables with ferrules. Copper cable with area 1.5mm² (2 cables). The rated insulation voltage Ui is up to 500V, and the rated impulse withstand voltage Uimp is 4kV. Can be mounted on DIN rail for modular installation, width 9mm pitch 1. The pollution level is 3 and the heat resistance level is treatment 2. Stripping length is 9mm, connection tightening torque is 1N.m (bottom) suitable for PZ1 screwdriver type.  The IP protection rating is IP20, the operating temperature is -25°C to +70°C, and the storage temperature is -40°C to +85°C. This product complies with EN/IEC 60947-5-1, EN/IEC 60947-5-4 standards, ensuring its suitability for a variety of applications and environments.

    Product Description

    Standard IEC61009-1 ,  EN61009-1
    Electrical features Rated value UN(V) In (A)
    AC415 50/60Hz 3
    AC240 50/60Hz 6
    DC130 1
    DC48 2
    DC24 6
    Configurations 1 N/O+1N/C
    Rated impulse withstand voltage(1.2/50) Uimp (V) 4000
    Poles 1 Pole (9mm Width)
    Insulation voltage Ui (V) 500
    Dielectric TEST voltage at ind.Freq.for 1 min (kV) 2
    Pollution degree 2
    Mechanical features Electrical life 6050
    Mechanical life 10000
    Protection degree IP20
    Ambient temperature (with daily average ≤35℃) -5...+40
    Storage temperation (℃) -25...+70
    Installation Terminal connection type Cable
    Terminal size top/bottom for cable 2.5mm2  / 18-14 AWG
    Tightening torque 0.8 N*m  /  7 In-Ibs.
    Mounting On DIN rail EN 60715 (35mm) by means of fast clip device

    MCCB Production Line Real Showing

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