Introduction
Electrical panels are the backbone of industrial automation and energy control, especially in food factories and processing units. These panels house crucial electrical components that manage power flow to various machines, enabling precise operation, safety, and energy efficiency.
As a leading food manufacturing consultant, PMG Engineering designs custom electrical panels aligned with GMP, HACCP, and energy standards for food processing plants.
An electrical panel is an enclosure comprising electrical devices that distribute and control power for various industrial equipment. These are essential in the food processing industry for powering equipment such as mixers, conveyors, boilers, chillers, and automated packaging machines.
It typically consists of two core elements:
- Panel Structure
- Electrical Components
1.Panel structure
The structure of an electrical panel consists of the enclosure and back panel:
- Enclosure: A metal cabinet (usually aluminum or stainless steel) designed to protect internal components. It is selected based on application—indoor, outdoor, dust-proof, waterproof, and for hazardous food factory environments.
- Back Panel: Mounted inside the enclosure, it supports DIN rail-mounted devices and wiring ducts, facilitating organized and service-friendly layout.
2.Electrical component
Modern electrical panels for food manufacturing are built with critical components to ensure safe, reliable, and automated control. These include:
- Main Circuit Breaker – Controls the incoming power supply
- Surge Arrestors – Protect sensitive devices from voltage spikes
- Transformer – Steps voltage up or down as per requirement
- Terminal Blocks – Organize wiring and facilitate connectivity
- Programmable Logic Controller (PLC) – The brain of automated processes
- Relays & Contactors – Switch power based on control signals
- Circuit Breakers – Isolate faulty circuits
- Human Machine Interface (HMI) – Allows operator interaction with the system
3.Types of Panels
1.HT panel
HT panels supply high-voltage power to distribution boards. They are installed in substations to manage and monitor power flow to food factory equipment like large HVAC systems, refrigeration units, and heavy-duty machinery.
2.Power control centre panel
PCC panels draw power directly from transformers and regulate distribution across large food manufacturing facilities. Common in industries like dairy, snacks, beverage, oil, and grain processing, they enable:
- Load balancing
- Overload protection
- Safe startup and shutdown of critical equipment
3.Main LT panel
LT panels handle low voltage (up to 430V), distributing power from generators or transformers to various devices in the factory. Their applications include:
- Lighting systems
- Control units
- Utility equipment in food labs and packaging zones
4.MCC panel
MCC panels centralize control of motors used in food conveyor systems, homogenizers, mixers, pumps, etc. They include:
- Motor starters
- Variable Frequency Drives (VFDs)
- Circuit breakers, relays, meters, HMIs
These panels are typically installed in electrical or mechanical rooms and help maintain operational efficiency and safety in large food factories.
Conclusion
Designing an efficient electrical panel system is critical for the smooth operation of food processing plants. As a reputed food industry consultant, PMG Engineering ensures compliance, energy optimization, and future scalability in panel design for every food project.
Reference
https://www.squareone.ca/resource-centres/getting-to-know-your-home/electrical-panel
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