Low Voltage (LV) panels, also known as low voltage switchgear or distribution boards, are critical assemblies for receiving, distributing, and controlling electrical power in systems up to 1000V AC or 1500V DC. They ensure safe power distribution, protection against faults, and operational efficiency in commercial buildings, industries, data centers, and infrastructure projects.
Proper LV panel design balances safety, reliability, thermal management, short-circuit withstand, and maintainability. Watts & Ergon, specializes in designing, manufacturing, and commissioning high-quality LV panels tailored to your project needs.
The primary standard is IEC 61439 series. It defines requirements for low-voltage switchgear and controlgear assemblies (PSC assemblies).
Core Design Verifications:
Busbars must carry rated current without exceeding temperature limits.
| Part | Max Temperature Rise (K) | Max Absolute Temperature (°C) |
|---|---|---|
| Busbars & Conductors (bare) | 70 | 105 |
| Terminals for external conductors | 70 | 105 |
| Rated Current (A) | Typical Size (mm) |
|---|---|
| 400 | 30×5 or 25×10 |
| 800 | 50×10 or 2×(40×5) |
| 1600 | 80×10 or 2×(50×10) |
| 2500 | 100×10 or 2×(80×10) |
| 4000 | Multiple runs (consult engineer) |
| Form | Description | Application |
|---|---|---|
| Form 2b | Busbars separated from functional units | Standard industrial |
| Form 4b | All separated including terminals | High safety & maintenance |
Custom LV Panels • IEC 61439 Compliant • Expert Support in Dubai & GCC
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