1. Low-Voltage Cabinet Model Comparison (8 types)
| Model | Type | Mounting | Current | Typical applications |
|---|---|---|---|---|
| GGD | Fixed type | Fixed | ≤ 2000A | Main cabinet in the distribution room |
| GCS | Drawer type | Drawer | ≤ 4000A | Industrial power distribution |
| MNS | Drawer type | Drawer | ≤ 4000A | Large projects / foreign-invested plants |
| GCK | Drawer type | Drawer | ≤ 2500A | Industrial power distribution |
| XL-21 | Power cabinet | Fixed | ≤ 630A | Workshop Power |
| XL-52 | Power cabinet | Fixed | ≤ 1250A | Workshop Power |
| MNS low-voltage | Fixed + drawer | Hybrid | ≤ 4000A | Data center |
| JP | General purpose | Fixed | ≤ 630A | Rural Distribution Area |
2. Fixed vs. Drawer Type (key difference)
Fixed type(GGD/XL): components are fixed-mounted, lower cost, maintenance requires power shutdown;Drawer type(GCS/MNS): circuits are withdrawable, maintenance without power shutdown, cost is 30–50% higher.
3. Selection by Current (4 Tiers)
| Current | Recommended models |
|---|---|
| ≤ 630A | XL-21/GGD |
| 630–2000A | GGD |
| 2000–4000A | GCS/MNS |
| ≥ 4000A | MNS split |
4. Selection by application (5 types)
- Main cabinet in the distribution room: GGD (fixed, low cost)
- Industrial, frequent maintenance: GCS (drawer, withdrawable)
- Foreign-invested / large-scale projects: MNS (ABB system, standardized)
- Workshop Power: XL-21 (≤ 630A)
- Rural Distribution Area: JP (three-in-one integrated)
5. Zhejiang Golden Unicorn low-voltage cabinet limits (red lines)
Zhejiang Golden Unicorn low-voltage cabinet:busbar ≤ 2000A, voltage 380/400V, single section ≤ 8 units in parallel. Beyond that, use split busbars or a recommended partner. Annual output 5000+ units,MOQ 1 unit · 15–25 days.
FAQ FAQ
How do I choose between GGD and GCS?
GGD is fixed and low cost, suited to distribution rooms; GCS is drawered and withdrawable, suited to frequent maintenance.
Which country's system is MNS?
ABB system (imported), highly standardized, commonly used in large-scale projects and foreign-invested projects.
What is the maximum current of a low-voltage cabinet?
Single section ≤ 4000A; for more, use split busbars (multiple cabinets in parallel).
Can XL-21 be used as a main cabinet?
XL-21 is a power cabinet (≤ 630A). It works for workshop distribution, but its capacity is insufficient for a main cabinet.
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