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Lovato P1MBUL3PD50 Miniature Circuit Breaker

The Lovato Electric P1MBUL3PD50 is a 50A, 3-pole miniature circuit breaker that provides thermal-magnetic protection against overloads and short circuits. Its D-curve trip characteristic accommodates high-inrush loads, including transformers and other inductive equipment. UL 489 certification, a 240 VAC UL operational voltage rating, and a 10kA short-circuit rating make it suitable for branch circuit protection within its specified ratings. The three-module design mounts directly onto standard 35mm DIN rail.

  • Sold in a Pack of 4
  • 50A rated current with three-pole protection.
  • D-curve thermal-magnetic tripping for high-inrush applications.
  • UL 489 certified for branch circuit protection.
  • Rated for 240 VAC under UL and 230/400 VAC under IEC standards.
  • 10kA short-circuit rating under UL and IEC standards.
  • Compatible with 50/60Hz electrical systems.
  • Three DIN modules wide with standard 35mm DIN rail mounting.
  • IP20 frontal protection degree.
Price: $110.74
Retail: $290.40
ManufacturerLovato Electric
Part NumberP1MBUL3PD50
Product TypeMiniature Circuit Breaker
Rated Current50A
Number of Poles3
Trip CurveD
Trip MechanismThermal-Magnetic
Rated Operational Voltage (UL)240 VAC
Rated Operational Voltage (IEC)230/400 VAC
Rated Frequency50/60Hz
Short-Circuit Rating (UL)10kA
Short-Circuit Rating (IEC)10kA
Rated Insulation Voltage (IEC)440V
Rated Impulse Withstand Voltage4kV
Number of DIN Modules3
Mounting35mm DIN Rail
Conductor Size14–6 AWG / 1–35 mm²
Terminal Tightening Torque1.8–2 Nm / 16–17.7 lb-in
Terminal ToolPZ2
Electrical Life10,000 Cycles
Mechanical Life20,000 Cycles
Maximum Power Dissipation per Pole3.5W
Operating Temperature-40°C to +70°C
Storage Temperature-40°C to +80°C
Maximum Installation Altitude2,000m
Frontal Protection DegreeIP20
Pollution Degree2
StandardsUL 489; IEC/EN 60947-2
CertificationcULus
Weight388g
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