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Weatherproof Industrial GL Switch 250A
Heavy-duty 250A isolating switch. 3-phase disconnector with 4P option. 20kA fault withstand. Ideal for main incomers, large compressors & industrial plants.
Weatherproof Industrial GL Switch 250A | 3P 4P Manual Transfer Isolator
Industrial GL Type Isolator Switch – High-Capacity Power Isolation for Heavy Industrial Applications.
The Industrial GL Type Isolator Switch is a heavy-duty power disconnector engineered for high-current electrical isolation in demanding industrial environments. With a robust 250A rating, this switch delivers reliable performance for large-scale machinery, main distribution boards, and critical infrastructure requiring superior disconnection capabilities.
Key Features：
High-Capacity 250A Rating: Part of the comprehensive 20-3200A family, the 250A model is specifically designed for heavy industrial loads, large compressors, manufacturing plants, and main switchboard incomers.
High Fault Current Withstand: Engineered to withstand short-time currents up to 20kA, providing exceptional protection against overcurrent and short-circuit conditions without contact damage or welding.
Industrial-Grade Durability: Constructed with heavy-duty materials and precision engineering to withstand vibration, dust, and harsh operating conditions common in industrial settings.
Positive Contact Indication: Features a prominent mechanical indicator showing true contact status (ON/OFF), enabling visual confirmation for safe maintenance and lockout/tagout procedures.
Applications:
Heavy machinery and production line disconnection
Pump stations and water treatment facilities
Manufacturing plant power distribution
Commercial building main switches
Mining and heavy industry equipment
Main Technical Parameters
| 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 | |
Packaging and delivery
| Selling Units | Single item |
Lead time
| Quantity (pieces) | 1 – 6 | > 6 |
| Lead time (days) | 15 | To be negotiated |
Key attributes
| Rated Voltage | 400 V |
| Material | Copper |
| Place of Origin | Zhejiang, China |
| Type | Switches |
| Model Number | GL-100 |
| Brand Name | Westhomes |
155 MB
FREQUENTLY ASKED QUESTION (FAQ)
About the company
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.
About warranty
18 months from the date of receivement
About shipment method
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.
About MOQ
Up to the client
About payment method
We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.
About ordering process
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.
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