SDG Fixed-Type Low-Voltage Switchgear Assembly

1600 A fixed-type LV switchgear — universal 8MF frame, optimized natural convection, IP30 standard (IP20–IP40 configurable).

What is SDG Fixed-Type Low-Voltage Switchgear Assembly?

SDG is a fixed-type low-voltage switchgear assembly designed for substations, power plants and industrial users operating at 50 Hz with rated working voltage 380 V and rated working current 800–1600 A. Used for power conversion, distribution and control of power, lighting and generator equipment, SDG delivers high breaking capacity, strong dynamic-thermal stability, flexible electrical schemes and series-based expandability — making it a strong successor choice for legacy LV distribution cabinets.

Where SDG fits

• Substations

• Power plants

• Mining & factory facilities

Operating conditions

• Short-term maximum ambient: 40 °C

• Minimum long-term average ambient: −5 °C

• Maximum long-term average ambient: 35 °C

• Standard operating relative humidity: 50 %

Derating required when ambient temperature exceeds the limits above. For measurement, metering and protection-relay operating conditions, follow the manufacturer's instructions.

SDG at a glance

• Max rated current: 1600 A

• Rated voltage / frequency: 380 V / 50 Hz

• Cabinet frame: 8MF cold-formed steel with 20-mod mounting holes

• Protection: IP30 standard, configurable IP20–IP40

SDG key features

• Universal cabinet frame built from 8 MF cold-formed steel with 20-mod installation holes for high cross-platform usability.

• Optimized thermal design: dedicated upper exhaust vents and lower intake vents create a natural-convection cooling path through the sealed cabinet.

• Modern industrial look based on the golden-ratio proportion principle — clean, generous and distinctive.

• Removable top cover simplifies on-site main busbar installation and adjustment; four corner lifting rings for hoisting and transport.

• Standard IP 30 protection; field-configurable to IP 20 – IP 40.

• Optional digital experience layer enables software-assisted collaboration.

Business Values for Operators

• Drop-in upgrade for legacy LV distribution cabinets — modern fixed-type design with high breaking capacity and strong dynamic-thermal stability, directly replacing aging LV switchgear.

• 8MF universal frame — high cross-platform usability across multiple device families, simplifying spare-parts and retrofit decisions.

• Natural-convection thermal design — dedicated upper exhaust / lower intake vents keep the cabinet sealed while dissipating heat efficiently, lowering fan-maintenance cost.

• Site-friendly installation — removable top cover and four-corner lifting rings make on-site busbar assembly and hoisting straightforward.

• IP30 standard, configurable to IP20–IP40 — match protection grade to your specific environmental requirements.

• Phased series expansion — series-based structure lets you add cabinets as load grows without redesigning the system.

Frequently Asked Questions

• What is the difference between SDG and SDB?
  SDB is a drawer-type switchgear (modular isolated drawers, up to 4000 A); SDG is a fixed-type switchgear (fixed compartments, up to 1600 A) with lower cost per ampere for substations and power plants where modular isolation is not required.

• Can SDG be configured for harsher environments?
  Yes — standard IP30, field-configurable to IP20–IP40 to match dust, humidity and contamination levels.

• Is SDG suitable for mining and industrial plants?
  Yes — its strong dynamic-thermal stability, high breaking capacity and industrial-grade 8MF frame are designed exactly for these operating environments.

Request a Tailored Quotation

This page cannot submit forms directly. Please go to our FEEDBACK page and our technical sales team will reply within 1 working day with a customized distribution scheme, electrical schematics and formal quotation.

Prepare before submitting:

• Your full name & company name

• Project country & exact location

• Project type: substation / power plant / mining facility / factory

• Rated working voltage, frequency and max busbar current

• Target protection grade (IP30 / IP40)

• Compliance target (GB / VDE / IEC / other)

• Special environmental conditions (altitude, corrosive atmosphere, seismic zone)

All project information is strictly confidential.

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Why HG upsboss

• Complete LV power distribution ecosystem — 8 product families from main switchgear to terminal PDU

• SDCT — new generation intelligent LV switchgear assembly (up to 6300 A)

• SDB — drawer-type LV switchgear (up to 4000 A)

• SDG — fixed-type LV switchgear (up to 1600 A)

• SDS — power distribution cabinet & box (up to 630 A / SDSF 400 A)

• SJMP — precision power distribution cabinet

• MASTER-LINE — data center busway system

• S-PDU — standard rack power distribution unit

• S-Smart PDU — intelligent rack power distribution unit

• International and Chinese national standards compliance for global export qualification

• Standard communication interfaces for UPS, cooling and environment-monitoring integration

• Responsive technical sales team — detailed proposal within 1 working day

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