Isolation Switch

The isolation switch: ZSEE G1(GL) series (hereinafter referred to as “switch”) is a product meticulously developed by our company. The switch is suitable for AC 50Hz with two rated voltages, 380V and 690V, and rated current up to 4000A. It is used for infrequent connection and disconnection of circuits. The 690V product is used for electrical isolation. It is widely used in power distribution and automation systems across industries such as construction, electricity, petrochemicals, and others.

The modular design structure offers flexible and diverse combinations. The casing is made from unsaturated polyester fiberglass reinforced molding compound (DMC), providing high dielectric performance, protection, and reliable operational safety.

The operating mechanism is a spring-energy stored, instant release acceleration mechanism, enabling instantaneous connection and disconnection with a double-breaking contact structure. The switching speed is independent of the handle’s operation speed, enhancing the electrical and mechanical performance.

Various structures and operation modes are available, including windows for directly observing the contact status, both internal and external cabinet operation, front or side operation, and rear-panel wiring.

  • The switch features a beautiful, simple design, compact size, and full functionality.
  • The switch is suitable for AC 50Hz, with two rated voltages of 380V and 690V, and rated current up to 4000A. It is used for infrequent connection and disconnection of circuits.

Product Features

  1. The spring-energy stored instant release acceleration mechanism enables fast connection or disconnection, independent of the handle’s operation speed, enhancing arc-quenching capability.
  2. The casing, made of unsaturated polyester fiberglass reinforced molding compound (DMC), offers excellent flame retardant properties, dielectric performance, carbonization resistance, and impact resistance.
  3. Horizontal pull-apart technology with parallel double-breaking, double-bridge spring-loaded contact structure.
  4. All contact materials are silver-plated copper alloys, featuring two separate contact surfaces.
  5. In the “0” position, the handle can be locked with up to three locks, reliably preventing misoperation.

ZSEE G1(GL) Series Isolation Switches Comply with the Following Standards

National Standards

GB 14048.1 “General Rules for Low Voltage Switchgear and Controlgear”

GB 14048.3 “Switches, Isolators, Isolation Switches, and Fuse Combination Units for Low Voltage Switchgear and Controlgear”

International Standards

IEC 60947-1 “Low Voltage Switchgear and Controlgear Part 1: General Rules”

IEC 60947-3 “Switches, Isolators, Isolation Switches, and Fuse Combination Units for Low Voltage Switchgear and Controlgear”

Certification Status

The ZSEE G1 series automatic transfer switches are certified with CCC self-declaration and EAC certification.

Operating Conditions

The ZSEE G1(GL) series isolation switch operates reliably under the following conditions:

  • Altitude not exceeding 2000 meters.
  • Ambient temperature not higher than +40°C and not lower than -5°C.
  • When the temperature is +40°C, the relative humidity should not exceed 50%.
  • Special measures should be taken to prevent condensation due to occasional temperature changes.
  • Non-explosive environments.
  • No exposure to rain or snow.
  • Pollution degree 3.

ZSEE G1(GL) Series Isolation Switch Model Description

Notes:

  1. The above features do not require further annotation.
  2. ZSEE G1(GL)-63~3150/3.4 refers to isolation switches (Ue: ~380V).
  3. For the agreed heating current values, refer to the electrical and mechanical performance parameters table.

Example of Model Selection: ZSEE G1(GL)-160A/4Z1JF22 le125A (Ue: ~380V)

Conversion isolation switch, front and rear arrangement, rated AC voltage 380V, rated current 125A, 4 poles, external cabinet operation, auxiliary contacts, 2 normally open and 2 normally closed.

Notes:

  1. Auxiliary contacts of the conversion isolation switch are in pairs, i.e., one set of auxiliary contacts for normal use and one set for backup. For example: F22 indicates normal F11 and backup F11.
  2. The busbar sequence for the four-pole isolation switch is ABCN. For special product requirements, please contact the company.

ZSEE G1(GL)-63~4000 Electrical and Mechanical Performance

ZSEE G1(GL)-63~3150 Isolation Switch

  1. The ZSEE G1(GL) isolation switch is available in 11 specifications from 63A to 3150A, all featuring a modular design structure with three poles and four poles (three poles + interruptible neutral pole), suitable for circuit connection, disconnection, or electrical isolation.
  2. A window on the front indicates the contact status.
  3. Rear observation windows can be provided to directly observe the contact status, as required.
  4. Operation modes:
    • Direct operation: The handle is directly mounted on the switch body.
    • External cabinet operation: The handle is mounted outside the distribution cabinet door.
  5. Auxiliary contacts can be installed.
  6. Cable insulation covers can be installed.

Handle Dimensions for Each Current Rating

Auxiliary Contact Terminal Diagram

Busbar Wiring Screw Dimensions

ZSEE G1(GL)-63~100 Isolation Switch

ZSEE G1(GL)-63~100A is suitable for circuit connection, disconnection, or electrical isolation.

ZSEE G1(GL)-63~100A is available in three poles and four poles (three poles + interruptible neutral pole).

Auxiliary contacts can be installed as needed.

ZSEE G1(GL)-63~100 Dimensions and Installation (Unit: mm)

ZSEE G1(GL)-160~630 Dimensions and Installation (Unit: mm)

ZSEE G1(GL)-1000~3150 Dimensions and Installation (Unit: mm)

ZSEE G1(GL)-160~1600/H Rear-Cabinet Operation Isolation Switch

ZSEE G1(GL)-160~1600A is suitable for rear-cabinet operation for circuit connection, disconnection, or electrical isolation.

ZSEE G1(GL)-160~1600A is available in three poles and four poles (three poles + interruptible neutral pole).

Products below 630A can be equipped with observation windows to directly observe the contact status, as required. Auxiliary contacts can also be installed as needed.

ZSEE G1(GL)-160~630/H Dimensions and Installation (Unit: mm)

ZSEE G1(GL)-1000~1600/H Dimensions and Installation (Unit: mm)

ZSEE G1(GL)-63~3150/C Side-Operation Isolation Switch

  1. The ZSEE G1(GL)-63~3150/C is suitable for circuit connection, disconnection, or electrical isolation. It is available in three poles and four poles (three poles + interruptible neutral pole).
  2. ZSEE G1(GL)-160~630A products can be equipped with observation windows for directly observing the contact status, as needed.
  3. Operation modes:
    • Direct operation: The handle is directly mounted on the switch body.
    • External cabinet operation: The handle is mounted outside the distribution cabinet door.
  4. Auxiliary contacts can be installed as needed.
  5. Extended shafts are available for external cabinet operation.
  6. Cable insulation covers can be installed.

ZSEE G1(GL)-100~630/C1 Dimensions and Installation (Unit: mm)

ZSEEG1(GL)-1000～3150/C1 Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-63～100/C2 Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-160～630/C2 Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-100～3150/Z Changeover Isolation Switch

  1. ZSEEG1(GL)-100～3150/Z is suitable for switching between two low-voltage circuits or for transferring or safely isolating two load devices.
  2. Operation methods: Direct operation: The handle is directly mounted on the switch body. External operation: The handle is mounted outside the distribution cabinet door.
  3. Available in three-pole and four-pole (three-pole + switchable neutral pole) configurations.
  4. Extended shaft is used for external operation.
  5. Auxiliary contacts can be fitted as needed.
  6. The ZSEEG1-Z1 product can provide bridge-type connecting conductors.
  7. Cable insulation covers can be equipped.

ZSEEG1(GL)-100/Z1 Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-160～630/Z1 Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-1000～3150/Z1 Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-160～3150/DC1 Motorized Isolation Switch

  1. ZSEEG1(GL)-160～3150/DC1 is suitable for making and breaking low-voltage circuits while ensuring safe isolation in the neutral position.
  2. This switch integrates logic control without the need for an external controller, enabling electromechanical integration.
  3. The mode of operation is selected by a key switch.
  4. The switch can be locked in both positions with one to three locks.
  5. This switch is compact in structure, easy to install and operate, and has a long service life.
  6. The switch panel is equipped with a power simulation indicator light.

ZSEEG1(GL)-160～3150/DC1 Motorized Isolation Switch Outline and Installation Dimensions (Unit: mm)

ZSEEG1(GL)-4000 Isolator

  1. ZSEEG1(GL)-4000 Isolator is suitable for ensuring circuit safety isolation.
  2. The front panel has a marking window to indicate the on/off status of the contacts.
  3. Auxiliary contacts can be installed as required.

ZSEEG1(GL)-4000 Outline and Installation Dimensions (Unit: mm)

Implemented Functions

① Power Conversion

Switching from the main power supply to the emergency backup power supply.

② Switching and Reversal

Switching between two load devices (emergency backup motor).

Achieving reversal through phase exchange.

③ Bypass

Isolating equipment from upstream and downstream through shunting (completed in one operation).

④ Disconnection + Grounding

Isolation completed in one operation through grounding and short-circuiting (Ue > AC).

  • Due to the continuous technical upgrades and optimization of the company’s products, all information in this document is subject to the actual product. Changes may be made without notice. The company and its employees bear no liability for disputes arising from information in this document that has not been confirmed by our sales department.
For more information, you can contact us via email:[email protected], Click here for more contact details
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