Lighting distribution boards for factories, townships and commercial buildings
A lighting distribution board (LDB) takes a feeder from the power distribution board or PCC and splits it into protected single-phase and three-phase lighting circuits, with RCCB earth-leakage protection, timer or contactor control for zone switching, and metering where lighting energy is tracked separately. Accu-Panels Energy builds LDBs from 63 A to 400 A in CRCA or stainless-steel enclosures to IEC 61439-3, at its ISO 9001:2015 works in Ahmedabad.
Factory bay and high-mast lighting, warehouse and cold-storage lighting, township and residential-society street lighting, commercial towers, hospitals, hotels and malls, plant-room and emergency lighting, and solar plant yard lighting. Outdoor IP65 LDBs are supplied with canopies for street-light and yard-light feeder pillars.
- Incoming MCCB or MCB isolator with Type 2 surge protection
- Outgoing MCBs (6 A to 63 A, B/C curve) grouped per phase with RCCB / RCBO 30 mA or 100 mA earth-leakage protection
- Contactor or timer / astronomical-timer control for automatic zone switching; photocell input for outdoor lighting
- Provision for energy meter and current transformers
- Touch-safe shrouding, phase-segregated neutral and earth bars, engraved circuit labels
- Hinged inner door for MCB access with lockable outer door
- IEC 61439-1 and IEC 61439-3 (distribution boards operated by ordinary persons)
- 415 V / 240 V AC, 50 Hz; 63 A to 400 A incomer
- 4 to 48 outgoing ways, single- or three-phase
- Short-circuit rating 10 kA / 16 kA / 25 kA
- IP42 / IP54 indoor; IP65 outdoor (IEC 60529)
- 1.6 mm CRCA or 304 stainless steel enclosure, 7-tank pre-treatment, powder coated
LDBs are built on the same production line and quality system as our CPRI type-tested PCC and MCC panels: laser-cut enclosures, torque-audited terminations, routine dielectric and functional tests per IEC 61439-1, and drawings plus test certificates with every dispatch. Ask about matching PDBs, feeder pillars and junction boxes for the same project.
Frequently asked questions
What is the difference between a PDB and an LDB?
A PDB feeds power circuits (sockets, machines, sub-panels) with MCCB/MCB outgoings; an LDB feeds lighting circuits with MCB protection, RCCB earth-leakage protection and usually timer or contactor control.
Which RCCB sensitivity should I specify?
30 mA for personnel protection in offices, hospitals and residential areas; 100 mA or 300 mA for large industrial lighting circuits where nuisance tripping from cumulative leakage is a concern.
Can the LDB switch lights automatically?
Yes. Astronomical timers, photocells or BMS contacts drive contactors per zone; energy-saving schedules are set at the board.
Do you make outdoor LDBs?
Yes. IP65 CRCA or stainless-steel boards with canopies for street lighting, yards and solar plants.
Send your lighting load schedule to our team for an LDB drawing and quotation.
