RCBO RCCB with Overcurrent Protection

LB65LE-63A-OP-Miniature-Circuit-Breaker-MCB

LB47LE-63-OP 4.5kA Intergrated Residual Current Circuit Breaker with Overcurrent Protection.ALL-IN-ONE combined Earth leakage, overload & short circuit protect switch

Overview:
LB47LE-63-OP is an integrated one-piece RCBO, integrating residual current protection, long-time overload protection and instantaneous short-circuit protection in single module. It complies fully with IEC 61009-1 & GB/T 16917.1 standards.
 
With identical electrical performance to split DZ47LE-63 series, it adopts integrated modular structure for more compact installation and simpler wiring.
 
Suitable for AC 50/60Hz single-phase 230V & three-phase 400V distribution circuits, rated current range 6~63A. It cuts off circuit within ≤0.1s once electric leakage or electric shock occurs, meanwhile preventing cable overheating and fire caused by overload & short-circuit.
 
Widely applied in residential power distribution, commercial lighting, data center terminal power supply, temporary construction power. Compatible with standard TH35 DIN rail mounting.

Parameters

Parameter ItemStandard Specification Value
Applicable StandardIEC 61009-1, GB/T 16917.1
Frame Rated Current63A
Rated Operating Current In6/10/16/20/25/32/40/50/63A
Rated Operating Voltage Ue1P+N / 2P: AC230V; 3P / 3P+N / 4P: AC400V
Rated Insulation Voltage Ui500V
Rated Frequency50Hz / 60Hz
Instantaneous Trip CurveType C (5~10In), Type D (10~14In)
Rated Breaking Capacity Icn4.5kA / 6kA (optional)
Rated Residual Operating Current IΔn30mA (standard), 100mA, 300mA
Residual Current Breaking Time≤0.1s
Rated Residual Making & Breaking Capacity IΔm500A
Impulse Withstand Voltage Uimp4000V
Power Frequency Withstand Voltage (1min)2kV
Protection ClassIP20 (for indoor cabinet installation)
Pollution DegreeClass 2
Installation CategoryCategory Ⅱ, Ⅲ
Mechanical Operation Life10,000 times
Electrical Operation Life4,000 times
Compatible Mounting RailTH35-7.5 standard DIN rail
Operating Ambient Temperature-5℃ ~ +40℃ (24h average ≤35℃)
Storage Temperature-25℃ ~ +70℃
Terminal Screw Torque6~32A: 1.2N·m; 40~63A: 2.0N·m

Pole SpecificationRated VoltageTypical Application Scenario
Integrated 1P+NAC230V Single PhaseHousehold socket & lighting circuit
Integrated 2PAC230V Single PhaseHigh-power air conditioner, water heater
Integrated 3PAC400V Three PhaseThree-phase power equipment
Integrated 3P+NAC400V Three Phase 4-WireCommercial distribution cabinet, data center power
Integrated 4PAC400V Three Phase 4-WireIndustrial equipment, outdoor construction power

Installation & Operation Instructions

  • Mount vertically on TH35 DIN rail. Switch handle UP = ON (closed), DOWN = OFF (open). Mounting tilt angle ≤±5°.
  • Wiring rule: Power input from top terminal, load output from bottom terminal. Tighten screw with specified torque to avoid overheating caused by loose contact.
  • Leakage function test: Press yellow test button every month, the breaker shall trip reliably. Press blue reset button before re-closing after leakage trip.
  • Environment limit: Do not install in flammable & explosive, strong corrosive gas or high condensation environment without protection. Max installation altitude ≤2000m.
  • Fault judgment guide: Slow trip = overload fault; instant trip = short-circuit fault; trip with leakage indicator popped up = circuit leakage fault, easy for line troubleshooting.
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