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32A DP MCB Switch YCB9-63

The YCB9-63 32A DP (Dual Pole) Miniature Circuit Breaker is a core component for safe and reliable electrical protection in single-phase systems. Designed to simultaneously interrupt both the line and neutral conductors, this 32A MCB provides complete circuit isolation, enhanced safety, and robust protection against overloads and short circuits. Complying with IEC/EN 60898-1 standards, it features a compact modular design for easy installation on 35mm DIN rails, making it an ideal choice for residential, commercial, and light industrial applications.

Key Features & Benefits

Complete Circuit Isolation: As a DP MCB, it disconnects both live and neutral wires, ensuring full circuit de-energization for maintenance and enhanced personnel safety.
Reliable Protection: Integrates thermal-magnetic trip technology (B, C, or D curve) for precise response to both overloads and instantaneous short-circuit faults.
High Breaking Capacity: Offers a short-circuit breaking capacity (Icn) of 4500A or 6000A, safeguarding your installation against high fault currents.
Durable & User-Friendly: Features a flame-retardant housing, an ergonomic non-slip handle for comfortable operation, and a clear contact position indicator window (Red ON/Green OFF).
Versatile Installation: Supports top or bottom wiring, accepts cables or busbars up to 25mm², and clips securely onto standard DIN rails.

Technical Specifications

Parameter Specification
Model Series YCB9-63
Rated Current (In) 32A
Number of Poles (DP) 2P
Rated Voltage (Ue) 230/400V AC
Rated Frequency 50/60 Hz
Rated Breaking Capacity (Icn) 4500A or 6000A
Tripping Characteristics B, C, or D Curve
Insulation Voltage (Ui) 500V
Impulse Withstand Voltage (Uimp) 6kV (1.2/50 µs)
Electrical Life 6,000 cycles
Mechanical Life 20,000 cycles
Terminal Connection Cable / Pin-type Busbar
Max. Wire Size 25 mm² / AWG 3
Tightening Torque 2 N·m (18 in-lbs)
Mounting 35mm DIN Rail (EN 60715)
Protection Degree IP20
Operating Temperature -5°C to +40°C
Standards Compliance IEC/EN 60898-1

Applications

This 32A Dual Pole MCB is perfectly suited for final circuit protection and isolation in a wide range of single-phase applications:
Residential & Commercial Buildings: Protection of lighting circuits, socket outlets, and appliance feeders.
Light Industrial Units: Control panels, machinery, and single-phase equipment protection.
Infrastructure & Services: Use in switchboards for shops, offices, and small workshops where reliable 32A circuit protection is required.

Why Choose the YCB9-63 32A DP MCB?

Choosing this 32A DP MCB means investing in safety, compliance, and durability. Its dual-pole design offers a higher level of safety than single-pole breakers by ensuring complete isolation. With its high breaking capacity and certified performance to international standards, it provides dependable protection for your electrical assets. The robust construction and clear visual indicators ensure long-term, trouble-free operation, making it a trusted component for electricians and system builders worldwide.

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Overall and mounting dimensions(mm)

Frequently Asked Questions (FAQ)

What is DP in MCB?
DP stands for Double Pole or Dual Pole. In an MCB, it means the device has two independent switching and protection mechanisms within one unit, allowing it to simultaneously disconnect both the Live and Neutral conductors of a single-phase circuit.

What does DP mean on a breaker?
On a circuit breaker, "DP" indicates it is a Double Pole breaker. It controls two poles (wires), typically the phase and neutral in a single-phase system, providing complete circuit interruption for enhanced safety during maintenance or a fault.

What is the difference between DP isolator and DP MCB?
A DP Isolator is a manual switch designed only for safe isolation of a circuit (no automatic protection). A DP MCB combines the isolation function with automatic protection—it trips automatically to safeguard against overloads and short circuits.

What is the difference between DP MCB and TP MCB?
A DP MCB (Double Pole) is used for single-phase systems, protecting two wires. A TP MCB (Triple Pole) is used for three-phase systems, protecting three live wires. A fourth pole (4P) may be added in TP MCBs to also switch the neutral.


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