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Home > Electrical & Electronics > Passive Components > Capacitor > Single Phase and 3 Phase Disconnector Switch 400V AC Air Load Brake

Single Phase and 3 Phase Disconnector Switch 400V AC Air Load Brake

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Product Spotlights

Manual air load break disconnector for safe circuit isolation at 400V AC. Available in single & three-phase configurations. Features visible air gap, robust construction, simple operation, and flexible mounting. Ideal for maintenance safety in industrial, commercial, and residential electrical distribution. Manufactured under ISO9001 with global export reach.

US$ 200 ≥1 Unit

Key Specifications

Get Latest Price

Application:

Other, Electrical Distribution & Isolation

Phase Configuration:

Single Phase & Three Phase

Voltage Rating:

400V AC

Contact Supplier Request Quote Chat Now

Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Application Other, Electrical Distribution & Isolation

Phase Configuration Single Phase & Three Phase

Voltage Rating 400V AC

Operation Type Air Load Break

Mounting Style Panel or DIN Rail Mountable

Contact Material Silver Alloy or Copper

Switch Type Manual Rotary or Lever Operated

Insulation Class Standard Electrical Grade

Enclosure Material Thermoplastic or Metal

Termination Type Screw or Clamp Connection

As a dedicated manufacturer with ISO9001 certified production processes, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing reliable electrical safety components for global markets. Our Single Phase and 3 Phase Disconnector Switch 400V AC Air Load Brake is engineered to deliver secure isolation and manual switching in low-voltage distribution systems. Designed for clarity of operation and durability, this switch serves as a critical point of control and safety for electricians and system operators.

The core value of this disconnector lies in its straightforward, manual operation for safely de-energizing circuits, allowing for maintenance, repair, or emergency shutdown without the need for complex tools. Its air break mechanism ensures a visible, physical gap is created between contacts, providing a clear indication of the "off" state and enhancing operator safety.

Key Features & Technical Advantages:

Dual Phase Compatibility: Available in configurations suitable for both single-phase and three-phase AC systems, offering flexibility for various installation requirements.
Clear Air Break Design: The switch operates by physically separating contacts in air, providing a visible and reliable isolation barrier, which is a fundamental safety feature.
Robust Construction: Built with high-quality contact materials (such as silver alloy or copper) and sturdy housings to withstand repeated operation and environmental conditions typical in industrial and commercial settings.
Manual Control Simplicity: Features a positive-action rotary knob, lever, or handle that provides unambiguous "ON" and "OFF" positions, requiring no external power for operation.
Secure Mounting Options: Designed for easy installation on panels, enclosures, or DIN rails, facilitating integration into existing electrical boards or cabinets.
Standard Voltage Rating: Rated for 400V AC applications, making it suitable for a wide range of low-voltage power distribution networks globally.

Technical Specifications Overview:

Parameter	Typical Specification
Rated Voltage	400V AC
Phase Options	Single Phase (1P), Three Phase (3P)
Switching Type	Manual Air Load Break (Isolator)
Rated Current	Available in common ratings (e.g., 32A, 63A, 100A)
Operating Mechanism	Rotary Knob, Lever, or Handle
Mounting	Panel Mount, DIN Rail Mount (options available)
Contact Material	Silver Alloy or Copper (for reliable conductivity)
Enclosure Protection	IP20 or higher (depending on model)

Benefits for Your Operations:

Enhanced Safety: Provides a mandatory, manual point for circuit isolation, reducing risks during maintenance and complying with safety protocols.
Operational Reliability: The simple mechanical design minimizes failure points, ensuring long-term, dependable performance without reliance on electronics.
Installation Versatility: Its compatibility with single and three-phase systems, along with flexible mounting, allows for use in diverse projects from residential complexes to industrial plants.
Cost-Effective Solution: As a fundamental component, it offers a durable and affordable means of achieving required isolation without over-complication.
Global Application Suitability: The 400V AC rating aligns with common low-voltage standards in many regions, supporting exports and international projects.

Trust & Commitment from Jinhua Dika:

Backed by our ISO9001 quality management system, every disconnector switch undergoes stringent checks to ensure consistent performance. With an annual export value ranging between US$1 Million to US$1.5 Million, we have established a strong supply chain presence across continents, including North America, South America, Europe, Asia, Africa, and Oceania. Our team of 11-50 skilled professionals is committed to manufacturing products that meet the practical needs of electricians and engineers worldwide. We support flexible shipment from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, facilitating smooth logistics for our international partners.

Choosing our disconnector switch means selecting a component built with manufacturing rigor, designed for clear functionality, and backed by a company with proven global reach. For detailed specifications, current ratings, or custom configuration inquiries, please contact us. We are ready to provide the reliable isolation solution your project requires.

Frequently Asked Questions (FAQ):

What is the primary function of this disconnector switch?
This is a manual switch designed to safely isolate (disconnect) a circuit from its power source. It creates a visible air gap between contacts, allowing personnel to work on downstream equipment without live voltage, serving as a key safety device.
Can this switch be used to break a load (turn off power under normal current)?
Yes, it is an "Air Load Brake" or "Load Break" disconnector, meaning it is rated to safely open (switch off) under its rated current load. It is not merely an isolator for already-dead circuits; it can perform the switching operation under normal load conditions.
How do I choose between a Single Phase and a Three Phase model?
The selection depends on your system's phase configuration. Use the Single Phase model for circuits with one live phase (common in residential or small commercial). Use the Three Phase model for systems with three live phases (typical in industrial motors, larger commercial distribution).
What is the difference between a "Disconnector Switch" and a "Circuit Breaker"?
A circuit breaker is an automatic protective device that trips (opens) in response to overcurrent or short circuits. A disconnector switch is a manual device used primarily for isolation; it does not provide automatic protection. Often, a disconnector is used upstream of a circuit breaker for manual isolation.
Are these switches suitable for outdoor installation?
Standard models typically have an IP20 rating for indoor use. For outdoor applications, models with higher ingress protection (IP ratings) may be available or can be housed within a suitable external enclosure. Please inquire for specific outdoor-rated options.
What are the common current ratings available?
Typical ratings include 32A, 63A, 100A, and higher, depending on the model and phase configuration. The specific rating needed depends on the maximum current of the circuit you intend to isolate.
Is the ON/OFF position clearly indicated?
Yes, the manual operating mechanism (knob, lever, or handle) provides a positive, unambiguous indication of the switch position. This is a critical safety feature to prevent accidental operation.
Can the switch be locked in the OFF position for safety?
Many models are designed with provisions for padlocking the handle in the OFF position. This is a common requirement for safety procedures to prevent unauthorized or accidental re-energizing during maintenance. Locking features are often available or customizable.