Industrial Switchgear Load Switch Widely Use Custom Color for 50Hz Frequency

• Customization: Available
• Type: High-voltage
• Structure: Load Break Switch
• Model NO.: Load Switch
• Installation: Indoor High-voltage
• Operation: Electric
• Grounding Mode: Not Grounding
• Movement Mode: Plug-in Type
• Number of Poles: Three Pole
• Grounding: Un Grounded
• Series: Three
• Run: Plug-In
• Switching Mode: Double-Throw Type
• Common Model: Fkn
• Structure of Operating: Electric
• Certification: ISO, CE, ISO9001
• Brand: Shengxian
• Color: Custom
• Packaging Details: Wooden Carton or as You Request
• Current Frequency: 50Hz
• Rated Current: 630A
• Transport Package: Export Standard Wooden Case
• Specification: W1500mm*D1500mm*H2000mm
• Trademark: shengxian
• Origin: Zhejiang, China
• HS Code: 853510000
• Production Capacity: 500 Pieces/Week
• Package Size: 1200.00cm * 1000.00cm * 1000.00cm
• Package Gross Weight: 200.000kg

Product Description

Product Description

Load Switch

Our high voltage load break switch (LBS) is a reliable switching device designed for making, carrying, and breaking currents under normal load conditions in medium voltage power systems (12kV / 24kV / 40.5kV). It provides a cost-effective alternative to circuit breakers in applications where short-circuit interruption is not required. Available in SF6 insulated, air insulated, or oil immersed types, our load break switches are widely used in ring main units (RMUs), compact substations, pole mounted switchgear, and cable distribution cabinets.

The load switch suitable for three-phase AC 50Hz ring network or terminal power supply and industrial electrical equipment, for load control and short circuit protection use, load switch open and close the closed loop current, no-load transformer and cable charging current, composite apparatus can break any current till rated short circuit current.
Adopt the straight move or isolating fracture and vacuum interrupter linkage. With function of manual and electric operation.

Key Features

 High Breaking Capacity
Rated breaking current up to 630A / 1250A, with making capacity up to 50kA peak.

Visible Break / Isolation Function
Provides a visible isolating gap when open, ensuring operator safety during maintenance.

SF6 or Air Insulated Options

SF6 type: sealed for life, maintenance-free, excellent arc quenching
Air type: economical, easy to install, suitable for dry environments
Compact & Modular Design
Small footprint, suitable for panel mounting inside RMU, switchgear, or outdoor enclosures.

Flexible Operation
Manual spring mechanism (standard) or motorized operation (optional). Local or remote control ready.

Integrated Earthing Switch (Optional)
Three-position switch (ON / OFF / EARTH) for safe grounding of downstream circuits.

Fuse Combination Option
Load break switch + fuse combination unit provides short-circuit protection for transformer protection (up to 1250kVA).

Specification

Item	Unit	FZN25-12D/	FZRN25-12D/
		T630-20	T125-20
Voltage, current parameters
Rated voltage	kV	12
Rated frequency	Hz	50
Rated current	A	630	125
Rated short time power frequency withstand voltage (1min)	kV	Interrupter fracture 30;phase to earth 42;isolation fracture 48
Rated lightning impulse withstand voltage (peak)	kV	Phase to earth 75;isolation fracture 85
Rated peak withstand current	kA	50	-
4s rated short-time withstand current	kA	20	-
Rated active load breaking current	A	630	-
Rated loop breaking current	A	630	-
Rated cable charging breaking current	A	10	-
Interrupting no load transformer capacity	kVA	1250	-
Rated short-circuit breaking current	kA	-	31.5
Rated transfer current, rated AC current	A	-	2000
Fuse type			SDLAJ-12 SFLAJ-12
The impactor energy output	J		2-5 (medium)
Rated short-circuit closing current	kA	50
Grounding switch rated stability current	kA	50
Grounding switch 2S thermal stability current	kA	20
The auxiliary circuit rated voltage	V	220/110
Mechanical life	Times	10000

Detailed Photos

Company Profile

FAQ

Q1. Are you a trading company or manufacturer?
A: We are a leading factory with a decade of expertise in high and low voltage switchgears, substations, transformers, cable distribution boxes, and various electrical equipment like vacuum circuit breakers and load break switches.
Our factory is a distinguished supplier to the State Grid Corporation of China.
 
Q2. Do you accept customized service?
A: We offer comprehensive OEM/ODM services and can brand your product with your logo. Our expert team provides tailored project solutions based on your designs and specifications.
 
Q3. What is your MOQ?
A: Our minimum order quantity is 1 piece.
 
Q4. How long is your delivery lead time?
A: Delivery times depend on product requirements and quantity, typically 5-10 working days.
 
Q5. How do you solve quality problems?
A: Please provide detailed photos of issues. Our technical and quality teams will analyze and offer a satisfactory solution within 2 days.
 
Q6. What are your payment terms?
A: Payment terms are 30% T/T in advance, 70% before shipment. West Union, L/C accepted.