Harold Industries

Sub Main Distribution Boards

ASTA Certified Secondary Distribution Solutions

Our SMDB range of products 800A/ 400A/ 250A have been tested and certified by ASTA, UK. Smaller and intermediate ranges can also be manufactured with similar design features. All design parameters are selected to suit IEC requirement and various customer requirement.

  • ASTA Certified
  • Modular Design
  • Versatile Applications
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Sub Main Distribution Boards

Technical specifications

Applicable Standards
IEC 61439 PART 1 & 2
Enclosure and Busbar System
3 Phase, 4 Wire, 415V AC, 50 Hz system with Earthing
Current Rating
Up to 2500A
Short Circuit Rating
From 25kA up to 50kA rated for 1 Second and 3 Seconds
Degree of Protection
IP43 / IP54 / IP55 / IP65 – INDOOR and OUTDOOR
Type of Construction
Modular, Form 2b/ 3b, Compartmentalized and Extensible design
Mounting
Free Standing, Floor mounted, Wall mounted
Incomer Device
Fixed – MCCB/ MCB
Outgoing Devices
Fixed – MCCB/ MCB/ MCB

Key features

  • SMDB range 800A/ 400A/ 250A
  • ASTA certified quality
  • IEC compliant design parameters
  • Compartmentalized design
  • Indoor and outdoor applications
  • Modular construction
  • Easy maintenance access
  • High reliability systems

Applications

  • Commercial Buildings
  • Residential Complexes
  • Shopping Centers
  • Office Buildings
  • Educational Institutions
  • Healthcare Facilities
  • Hotels and Restaurants
  • Small Industrial Units

Standards and certifications

  • IEC 61439-1 & 2
  • ASTA Certified
  • CPRI Approved
  • ISO 9001:2015

Benefits

  • ASTA Certified Quality
  • Modular Design
  • Versatile Applications
  • Easy Maintenance

Photos

Form 3b SMDB
Form 3b SMDBForm 3b Sub Main Distribution Board showing modular construction and compartmentalized design.
Form 2b Panel Assembly
Form 2b Panel AssemblyForm 2b panel assembly type SMDB with advanced circuit protection and modular construction.
Outdoor Panel
Outdoor PanelOutdoor SMDB panel with IP65 protection for external applications and harsh environments.
Internal view of a sub main distribution board
Internal view of a sub main distribution boardInternal view of a sub main distribution board showing the incomer, outgoing breakers and wiring.
SMDB with door open
SMDB with door openSub main distribution board with the door open during assembly.
Sub main distribution boards in the assembly hall
Sub main distribution boards in the assembly hallFinished sub main distribution boards lined up in the assembly hall.

SMDB Design & Features

Our SMDB range of products 800A/ 400A/ 250A have been tested and certified by ASTA, UK.

ASTA Certified
Our SMDB range has been tested and certified by ASTA, UK, ensuring the highest quality and safety standards.
Modular Design
Form 2b/ 3b modular construction with compartmentalized design for easy maintenance and future expansion.
Versatile Applications
Suitable for both indoor and outdoor applications with protection degrees from IP43 to IP65.

Where it sits in the power chain

Ready for SMDB Solutions?

Contact our engineering team for customized Sub Main Distribution Board solutions tailored to your power distribution requirements.

Request a quote+91 79047 85325