GR-SVI-12KV-1250A Medium Voltage Switchgear
Compact 12 kV solid-insulated switchgear for medium-voltage distribution, with modular load-switch, vacuum-breaker, fuse, isolation, and earthing functions.
Specifications
| Product Type | 12 kV solid-insulated switchgear cabinet |
|---|---|
| Rated Voltage | 12 kV |
| Rated Frequency | 50 Hz |
| Module Functions | C load switch · F fuse combination · V vacuum circuit breaker · isolation switch · earthing switch |
| Rated Current | C: 630 A · F: 125 A · V: 630 / 1,250 A · isolation / earthing: 630 / 1,250 A |
| Power-Frequency Withstand | Phase-to-phase / earth: 42 / 48 kV |
| Lightning Impulse Withstand | Phase-to-phase / earth: 75 / 85 kV |
| Main Circuit Resistance | C and V: ≤120 μΩ · F: 300 μΩ reference |
| Short-Circuit Performance | Breaking: F 31.5 kA · V 20 / 25 / 31.5 kA; values are module-specific |
| Protection / Service Life | IP67 sealed primary enclosure sections; mechanical life varies by module |
| Final Configuration | Busbar arrangement, module combination, ratings, protection, metering, and standards confirmed by project |
Free technical consultation · Industrial quality guaranteed · Worldwide shipping
Shipping & warranty
Shipping & delivery
Equipment and accessories can be shipped internationally. Freight, lead time, customs responsibility, and delivery access are confirmed for the destination and final order configuration.
Read the shipping policy →Limited warranty
Warranty eligibility is governed by the accepted quotation and applicable manufacturer terms. Consumables, normal wear items, and components depleted or degraded through ordinary use are not covered.
Read the complete warranty policy →Built for the work.
GR-SVI-12KV-1250A is a modular 12 kV solid-insulated switchgear cabinet for medium-voltage distribution and industrial power systems. The SVI configuration combines solid insulation, sealed functional compartments, and a modular arrangement of load-switch, fuse-combination, vacuum-circuit-breaker, isolation, and earthing functions. The cabinet can be arranged for incoming, outgoing, bus-section, metering, and protection duties according to the project single-line diagram.
The reference parameter schedule lists a 12 kV rated voltage and 50 Hz frequency. Module ratings differ: the C load-switch module is shown at 630 A, the F fuse-combination module at 125 A, and the V vacuum-circuit-breaker module at 630 or 1,250 A. Withstand levels are listed as 42 / 48 kV power-frequency and 75 / 85 kV lightning impulse, phase-to-phase / earth. The values are reference configuration data and must not be applied to a different module arrangement without engineering confirmation.
The cabinet is intended for qualified medium-voltage engineering and installation teams. Confirm the network voltage, current, fault level, incoming and outgoing feeder arrangement, CT/VT and metering requirements, protection relay, cable entry, interlocking, dimensions, environmental conditions, local standard, factory test scope, and site commissioning requirements before quotation.
Where it performs.
| Size / option | Where it performs | Selection note |
|---|---|---|
| C load-switch module | 630 A | 50 kA making · 20 kA / 4 s withstand · 20,000 operations |
| F fuse-combination module | 125 A | 31.5 kA reference breaking capacity · 20,000 operations |
| V vacuum-circuit-breaker module | 630 / 1,250 A | 20 / 25 / 31.5 kA breaking · 30 operations · 20,000 mechanical operations |
| Isolation switch | 630 / 1,250 A | 20 / 25 kA / 4 s withstand · 3,000 operations |
| Earthing switch | 630 / 1,250 A | 20 / 25 kA / 3 s withstand · 3,000 operations |
Ratings are module-specific reference data from the supplied schedule. The accepted single-line diagram, module combination, fault level, protection scheme, interlocks, and applicable standard govern the final switchgear configuration.
What’s included.
- GR-SVI-12KV-1250A switchgear cabinet in the accepted module arrangement
- Busbar, cable compartments, operating mechanisms, protection and metering scope as listed in the quotation
Specify before delivery.
Confirm utilities, site access, operating environment, consumables, ventilation, PPE, delivery handling, and local requirements before finalizing the configuration.
Discuss your application →Related guidance
Confirm the configuration before quoting.
You May Also Need
GR-PEM-SMART Smart Meter
Class 1.0 three-phase energy meter with digital display and configurable WiFi or RS485 connectivity for industrial and commercial monitoring.
- Nominal System Voltage
- 380 / 220 V
- Phase
- Three phase
- Product Type
- Three-phase smart energy meter
GR-SF6-12KV-F36 SF6 Load Switch Gas Bag Unit
Sealed SF₆ gas compartment unit for compatible medium-voltage load-switch and ring-main-unit configurations.
- Rated Voltage
- 12 kV
- 1-Minute Power-Frequency Withstand
- 42 kV phase-to-earth · 48 kV across open contacts
- Product Type
- SF₆ load switch gas bag unit
GR-PET-35KV-S11S13 S11/S13 10–35kV Oil-Immersed Distribution Transformer
Three-phase oil-immersed distribution transformer series for 10 kV, 20 kV, and 35 kV networks.
- Rated Capacity Range
- 30–6300 kVA
- Voltage Class
- 10 kV / 20 kV / 35 kV
- Typical Low Voltage
- 0.4 kV