Detailed introduction：

Scope of application

SMGG2 series of load isolation switch (hereinafter referred to as the switch) is the introduction of European companies to develop advanced technology from. The product has the international level of the late nineties. Is the ideal replacement of similar products in the domestic product.

Switches are widely used in construction, power, petrochemical and other industries, power distribution systems and automation systems.

Modular design of the structure, with a flexible combination of the use of glass fiber reinforced unsaturated polyester resin shell, a high dielectric properties, protection and reliable operational safety.

The operating mechanism is a spring accumulator, an instantaneous release of the acceleration mechanism, instantaneous connection and breaking the double break contact structure. Regardless of the speed of the operating handle. Set a variety of structure and mode of operation, a direct observation of the state of the window off the contact, a cabinet, cabinet, cabinet operation, a positive, side operation, a board wiring.

Switch shape handsome, novel, simple, small size, full-featured, is the ideal choice of similar products.

 

SMGG2 series of products have been 3C certification, the product line with GB14048.3 standards

 

Model and meaning

 

Features

○ Accelerator with spring-loaded instantaneous release enables fast switching on or off (138 m / s), regardless of the operating handle speed, which greatly improves the arc extinguishment capability.

○ Shell made of glass fiber reinforced unsaturated polyester resin has good flame-retardant properties, dielectric properties, carbonation resistance and impact resistance.

○ Parallel double-break contact with self-cleaning effect.

All contact materials are copper-silver-plated alloy with two separate contact faces.

○ Isolation distance is large.

○ In the "o" position, you can lock the handle with three locks, and reliable to avoid misuse.

 

Product usage

SMGG2 series load isolation switch is mainly used for AC 50Hz, rated voltage 660V, DC rated voltage 440V, rated current up to 3150A. Used for not frequently connected with the breaking circuit and circuit isolation

 

 

Standards compliant

○ National Standard:

GB / T14048.1-2006 "Low-voltage switchgear and control equipment General"

GB / T14048.3-2008 "Low-voltage switchgear and control equipment, switches, isolators, disconnectors and fuse combinations"

○ International Standard:

IEC 60947-1 (2001) "Low-voltage switchgear and controlgear Part 1 general principles"

 

IEC 60947-3 (2005) "Low-voltage switchgear and controlgear, switches, isolators, disconnectors and fuse-combination units"

 

Performance characteristics

○ SMGG2 series load isolation switch from 63-3150A is divided into seven specifications is based on modular design, with three poles, four poles (three poles can be switched off neutral pole), mainly for the circuit connected and broken or for Electrical isolation, more than 1000A only for electrical isolation.

○ Marker window is provided on the front side to indicate the state of contact opening and closing.

○ The back view window can be provided to observe the status of the contact opening and closing, the window style, see SMGG2-160A-1600A / H cabinet after the load disconnector.

○ Two auxiliary contacts can be fitted.

 

○ can be prepared cable insulation cover.

 

The environment used

SMGG2 series load disconnector can work reliably under the following conditions:

○ altitude not more than 2000 meters;

○ Ambient temperature not higher than 40 ℃, not lower than -5 ℃, relative humidity less than 95%;

○ No explosion hazard medium;

○ no rain and snow invasion of the environment;

 

Note: If the ambient temperature is higher than + 40 ℃ - or lower than -5 ℃ ~ -45 ℃, the user should explain to the manufacturer.

 

Electrical performance parameters and mechanical properties of SMGG2-60A ~ 3150A

Electrical performance parameters and mechanical properties of SMGG2-63A ~ 3150A

 

SMGG2-63A ~ 100A Type Load isolating switch

63A-100A applies to the circuit connected with the breaking or electrical isolation.

63A-100A has three poles, four (three-pole + neutral).

Two sets of auxiliary contacts can be assembled as required

According to the need to provide side of the cabinet, the cabinet outside the operation.

 

Operation 

Direct operation: The handle is mounted directly in the middle of the switch.

 

Outside the cabinet operation: Handle installed in the distribution cabinet door.

 

The outline and mounting dimensions of SMGG2-63A~100A Type Load isolating switch  (mm)

 

SMGG2-125A~630A Type Load isolating switch

 

The outline and mounting dimensions of SMGG2-1000A~3150A Type Load isolating switch (mm)