ACB Panel

An ACB Panel (Air Circuit Breaker Panel) is a high-capacity low-voltage (LT) electrical distribution panel that houses Air Circuit Breakers to handle, distribute, and protect high electrical currents. Typically operating at 415V to 690V AC and managing massive loads ranging from 800A to 6,300A, it acts as the primary safety shield and distribution center for large-scale power infrastructure. 

An ACB panel acts as the main incomer panel (receiving power from a transformer or generator) and safely routes it to sub-panels. It provides crucial safeguards: 

• Overcurrent & Overload Protection: Trips if downstream demand exceeds safe operational limits.
• Short-Circuit Protection: Instantly cuts off power during high-current short circuits to prevent fire and system damage.
• Earth Fault Protection: Identifies current leaking to the ground to shield personnel and machinery.
• Voltage Safeguards: Safely trips the network during hazardous over-voltage or under-voltage anomalies.
• Arc Quenching: Uses atmospheric air pressure within a dedicated "arc chute" to cool, stretch, and extinguish massive plasma arcs generated when isolating faults. 

TECHNICAL SPECIFICATION

• Incoming supply                       = 3 Phase, 4 wire & 1 Phase 2wire
• Installation                                = Indoor & Outdoor
• Rated Operation Voltage        =  3Phase,415V ± 10% AC
• Rated Control voltage              = 230V AC/24 VDC
• Rated Service Voltage              = 500 V AC
• Rated Insulation Voltage         = 800 V
• Fault level Bus Bar                    =  50kA for 1 sec
• Rated Frequency                      =  50Hz +/- 5%
• Rated Current                           =  Up to 2500 Amp
• Combined Variation                =  ± 10%
• Dry Power Frequency

Withstand Voltage                   = 2.5KV

• Short Circuit Level                    =  50 KA
• Temperature rise                     = 40 oC above Ambient 45 oC
• Form of segregation                = Form-3b/Form-4b
• Degree of Protection               =  Up to IP 54
• Metal Sheet Thickness            =  1.6mm/2mm/3mm
• External Surface Protection   = Epoxy Powder Polymerized at High Temperature
• Painting Thickness                   = more than 60 micron
• Standard Colour                       = Grey RAL 7035
• Bus bars                                     = Aluminium / Copper
• Bus bar Supports                      = SMC / DMC / FRP
• Standard Compliance              = IS 8623, IS 13947, IEC 61439
• Standard Depth of

Switchboards                            = 400/600 mm

• Standard Feeder Width          = 400/500/600 mm
• Mounting                                  = Floor mounted
• Door                                          = Hinged Type at Front and rear.
• Cable Entry                               = top & bottom
• Name Plates                             = Aluminum Sheet (White Letters on Black Background)
• Control wiring & Colour

Code                                          = 1100V PVC insulated copper wires; 1.5 sq.mm for control  circuit        (Grey & Black); 2.5 sq.mm for CT circuit (Red, Yellow, Blue for phase & Earth Green) 

• Power terminals                      =BUSBAR
• Control terminals                    = 2.5sq. mm Clip on type
• Earthing                                    =  AL Bus will be provided.
• Routine Test                            =  All routine tests as per the specification and relevant standards    will be carried out.
• SUPPLY : Bhubaneswar, odisha ,pan india , exports & import service provider