Onccy Eha 160A, 250A, 315A 500V 3p 4p Load Break Disconnect Switch

• Customization: Available
• Type: Low-voltage
• Structure: Single-column Disconnector
• Model NO.: EHA
• Operation: Electric
• Grounding Mode: Grounding
• Number of Poles: 2/3/4 Pole
• Grounding: Single Ground
• Series: Three
• Run: Vertical Rotation
• Structure of Operating: Electric
• Certification: ISO, RoHS, CE
• Brand: Aswich
• Rated Current: 160~800A
• Rated Voltage Ue: 500/690/1000V
• Insulation Voltage Ui: 1000V
• Mounting Type: DIN-Rail/Door/Plastic&Metal Enclosure B
• High Temperature Withstand: up to 70
• Feature: No-Polarity
• Installation Direction: Horizontal, Vertical or Even at The Ceiling
• Mechanical Endurance: 8000
• Ambient Temperature: -40~70
• Short -Circuit Making Capacity: 30/65/80
• Rated Short Timewithstand Current: 8/15 Icw
• Durability: 8000
• Number of Cycles of Operation: 1000
• Dimensions: Frame 315/630
• Transport Package: by Sea/Air
• Specification: box
• Trademark: Aswich
• Origin: China
• HS Code: 853650
• Production Capacity: 1000000PC/Year

Product Description

Detailed Photos

 

Product Description

The EHA AC Load Break Switch is a versatile and reliable solution designed for safe and efficient isolation of low-voltage circuits, particularly in machine control applications. Available in 3 or 4 poles with a current range of 160 to 800A, the EHA100 ensures reliable performance by making and breaking circuits under load conditions. With its modular design and wide range of accessories, the EHA100 can be transformed into a multipolar load break switch or a 3/4 pole changeover switch for on-load switching between two power sources or circuits, while maintaining safety isolation.

AC Load Break Disconnector switch is a type of equipment that isolates the power failure part from the live part and creates a clear break point to isolate the faulty equipment or carry out the maintenance.

A Load break switch is similar in structure to a disconnector (both have visible disconnection points in the disconnection state), but it can be used to open and close circuits, which in turn resembles a circuit breaker.

However, a circuit breaker can control any circuit, while aLoad break switch can only switch on or off load current, or switch off over load current, so it is only used to switch off and on circuits under normal conditions, not short circuit fault current. However, it is required that its structure can pass the fault current of short circuit time without damage.

Because the arc extinguishing device and contact of the Load break switch are designed to cut off and connect the load current, the Load break switch should be used with the fuse in most cases, and the latter is responsible for cutting off the short-circuit fault current.

The opening and closing frequency and operating life of load disconnecting switches are usually higher than those of circuit breakers.

 

Load break switches are devices used to open an electrical circuit by isolating the source from the consumer. Whether they are manual, motorised or with a trip function, these devices ensure the on-load making, breaking and safety disconnection of low-voltage electrical circuits. Easy to assemble and easy to use, they are suitable for structures evolving in the industrial sector, public distribution, as well as emergency switching, distribution panels and motor feeders.

Modular device

• EHD DC load break switches  are devices which are DIN rail or backplate mountable and can be integrated into a modular panel with a 45 mm front cut-out.
• Patented switching technology
• EHD DC load break switches with benefit from proven breaking technology based on a system of double break contacts with arc extinguishing chambers.

 

Product Name	High Voltage AC Isolation Switch
Model	EHA
Rated Current	160/250/315/400/630/800A
Rated Voltage	500/690/1000VAC
Pole Array	02, 11, 03, 12, 04, 22, 20, 21, 30, 40

 

Rated Current (Ie)	160A	250A	315A	400A	630A	800A
Frame Size	EHA-315	EHA-315	EHA-315	EHA-630	EHA-630	EHA-630
Thermal Current (Ith)	160	250	315	400	630	800
Rated Insulation Voltage (Ui)	1000	1000	1000	1000	1000	1000
Rated Impulse Withstand Voltage (Uimp)	12	12	12	12	12	12
Utilization Category	AC-20A/AC-20B AC-21A/AC-21B AC-22A/AC-22B AC-23A/AC-23B	AC-20A/AC-20B AC-21A/AC-21B AC-22A/AC-22B AC-23A/AC-23B	AC-20A/AC-20B AC-21A/AC-21B AC-22A/AC-22B AC-23A/AC-23B	AC-20A/AC-20B AC-21A/AC-21B AC-22A/AC-22B AC-23A/AC-23B	AC-20A/AC-20B AC-21A/AC-21B AC-22A/AC-22B AC-23A/AC-23B	AC-20A/AC-20B AC-21A/AC-21B AC-22A/AC-22B AC-23A/AC-23B
Short-Circuit Capacity (1000VAC, No Protection)
Rated Short Time Withstand Current (Icw 1s, kAeff)	8	8	11	11	11	11
Rated Short-Circuit Making Capacity (Icm, kA peak, 60ms)	22	22	22	22	22	22
Cable Recommendations
Recommended Cu Rigid Cable Cross Section (mm²)	70	120	185	240	2 × 185	2 × 240
Recommended Cu Busbar Width (mm)	20	20	25	25	25	25
Mechanical Characteristics
Durability (Number of Operating Cycles)	8000	8000	8000	8000	8000	8000
Number of Cycles of Operation with Current	1000	1000	1000	1000	1000	1000

 

Product Benefits

• ·Double magnetic and arc extinguishing chamber
• ·Save installation space and cost
• ·Groove structure
• ·Oversized terminal block
• ·Let Power be disconnected in a compact space
• ·From 1P to 4P
• ·Wiring nuts are provided for the full series
• ·lncrease creepage distance
• ·Reduce the risk of current leakage standard
• ·With 4*20mm copper
• ·Silver-plated material
•  
• Quick and perfect installation every time
• ·Base, door or DIN rail mounted
• ·Installation in any direction: horizontal, vertical or even at the ceiling
• ·A wide variety of accessories to customize the installation,such as handles shafts, auxiliary contacts, cabling accessories and additional power poles.
• ·Flexibility to plan your installation
• ·Easy to install
• ·High performance
•  

• Easy to install

• Wiring: Switch is non-polarized, all types of wiring and connections are possible.
• Auxiliary contacts easily mounted.
• The operating mechanism can be placed to meet the installation requirements.

 

• Safe reliable operation

• Reliable position indicator through visible windows.
• The opening and closing of the switch is fully independent from the speed of operation, ensuring safe operation under all conditions.
• High temperature withstand: no derating up to 70°C.
• Ambient Temperature: -40°C to +70°C.

 

• Designed for harsh environments

• Vibration testing (from 13.2 to 100 Hz at 0.7 g).
• Shock testing (15 g during three cycles).
• Humid temperature testing (2 cycles, 55°C/131F with 95% humidity level).
• Salt mist testing(3 cycles with humidity storage, 40°C/104F, 93% humidity after each cycle).

 

 

Product Parameters

 

 

Applications and Markets

Installation requirements

• The normal range of ambient air temperature is not higher than +40°ºC, not lower than -25°ºC, and the relative humidity is not more than 95%
• The altitude of the installation site does not exceed 2000 meters
• please institution in a non-explosive medium, and there is no gas and dust (including conductive dust) that can corrode metals and damage insulation in the medium.

 

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