GL Type 100A 3P/4P Circuit Isolator | Modular Terminal Disconnect Switch
Industrial GL Type Isolator Switch – Heavy-Duty Power Isolation for 3-Phase Industrial Applications.
Get quick appointment for technical support!
Industrial GL Type Isolator Switch 3P 4P 100A – AC400V power disconnector. 20kA short-time withstand. DIN rail mount. Reliable isolation for industrial machinery.
Industrial GL Type Isolator Switch – Heavy-Duty Power Isolation for 3-Phase Industrial Applications.

The Industrial GL Type Isolator Switch is a high-performance power disconnector designed for safe and reliable electrical isolation in industrial, commercial, and infrastructure installations. Engineered for durability and safety, this switch ensures complete circuit disconnection for maintenance and emergency shutdowns across three-phase systems.
Key Features:
Wide Current Range: Available from 20A up to 3200A, with the 100A model being ideal for medium-sized industrial loads, machinery, and distribution boards.
Flexible Pole Configurations: Choose between 3P (three-pole) for three-phase loads or 4P (four-pole) for systems requiring neutral disconnection, providing maximum installation flexibility.
High Insulation Voltage: Rated insulation voltage of 400V AC, ensuring high safety standards and reliable performance in industrial electrical systems.
Robust Short-Time Withstand Capacity: Withstands short-time currents up to 20kA, providing excellent protection against overcurrent and fault conditions without damage.
Applications:
Main isolating switches for industrial machinery
Distribution board incomers
Motor control centers (MCC)
Commercial building power supplies
| Items | Parameters | ||||||||||
| Shell Frame Rated Current Inm(a) |
100 | 160 | 250 | 400 | 630 | 800/1000 | 1250 | 1600 | 2000 | 2500 | 3200 |
| Rated Current In(a) | 20、25、32、 40、50、63、 80、100 |
20、25、32、 50、63、80、 100125、160 |
125、160、 200、225、250 |
400、500、630 | 400、500、630 | 800、1000 | 1250 | 1600 | 2000 | 2500 | 3200 |
| Poles | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P | 3P/4P |
| NominalInsulation Voltage Ui(v) |
800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Rated Operational Voltageue(m) |
AC400V | AC400V | AC400V | AC400V | AC400V | AC400V | AC400V | AC400V | AC400V | AC400V | AC400V |
| Rated Impulse Withstand Voltage Uimp(kv) |
6 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Rated Short Time Current Icw(ka/1s) |
5 | 10 | 12 | 20 | 20 | 20/H type 40 | 20/H type 40 | 20/H type 40 | 40 | 40 | 40 |
| Rated Short-circuit Ability Lcm(ka) |
8.5 | 17 | 24 | 40 | 40 | / | / | I | 84 | 84 | 84 |
| Use Classes | AC-21B、 AC-22B |
AC-21B AC-22B |
AC-21B AC-22B |
AC-21B AC-22B |
AC-21B AC-22B |
AC-20A | AC-20A | AC-20A | AC-21B、 AC-22B |
AC-21B、 AC-22B |
AC-21B、 AC-22B |
| Boundary Dimension(mm) |
85/108 | 140/170 | 180/230 | 230/290 | 230/290 | 378/498 | 378/498 | 378/498 | 378/498 | 378/498 | 378/498 |
| 106 | 135 | 170 | 240 | 260 | 312 | 338 | 338 | 455 | 455 | 505 | |
| 96 | 116 | 128 | 169 | 169 | 240 | 240 | 240 | 340 | 340 | 340 | |
| Mounting Dimension(mm) |
32.5/54 | 120/150 | 160/210 | 210/270 | 210/270 | 353/473 | 353/473 | 353/473 | 353/473 | 353/473 | 353/473 |
| 58 | 65 | 90 | 140 | 140 | 280 | 280 | 280 | 280 | 280 | 280 | |
| Selling Units | Single item |
| Quantity (pieces) | 1 – 6 | > 6 |
| Lead time (days) | 15 | To be negotiated |
| Rated Voltage | 400 V |
| Material | Copper |
| Place of Origin | Zhejiang, China |
| Type | Switches |
| Model Number | GL-100 |
| Brand Name | Westhomes |
Westhomes® is a professional manufacturer for low voltage and high voltage electrical products with a thirty-year history.
Main supplier of state-owned companies like China Stae Grid, China Southern Power Grid through bidding with bunches of test certificates, sales records and operation performance to support.
Enough investment for research and development for the products innovation.
18 months from the date of receivement
Depends on the required quantity and delivery urgency, both international express like UPS / DHL / EMS / HK EMS / FedEx / TNT (door to door service) and normal sea shipping & air freight also avaliable.
Up to the client
We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.
First to send an inquiry via made-in-china platform or directly to the contact e-mail address. All the following thing is the communication between us.
* indicates a required field