P1MBUH3PC08 - MINIATURE CIRCUIT BREAKER 3P CURVE C 8A UL489

Why Choose the P1MBUH3PC08?

Lovato’s P1MBUH3PC08 miniature circuit breaker delivers dependable three-phase protection with a 3P, 3-module format and C tripping curve at 8 A. With a 10 kA breaking capacity and conformity to IEC/EN 60947-2 and UL489, this MCB suits demanding distribution and control applications. Compact DIN-rail design simplifies panel integration while maintaining safety with an IP20 frontal rating.

Engineered for resilience, it offers 440 V rated insulation voltage and 4 kV impulse withstand, with reliable operation from -40 to +70 °C up to 2000 m altitude. Robust terminals accept 1.8–2 Nm tightening torque, and the mechanism is tested to 20,000 cycles. At just 388 g and pollution degree 2, it balances durability and compactness.

Key Benefits

• 10 kA short-circuit capacity for dependable fault interruption.
• C-curve tripping suits mixed resistive and moderately inductive loads.
• 3-pole, 3-module footprint streamlines three-phase panel layouts.
• Wide -40 to +70 °C operating range for harsh environments.
• Rated Ui 440 V and Uimp 4 kV enhance insulation robustness.
• IP20 frontal protection aids safer handling during panel access.
• Compliant with IEC/EN 60947-2 and UL489 for wide acceptance.
• Mechanical life of 20,000 cycles supports long service intervals.

Technical Specification

• Rated insulation voltage Ui (IEC/EN): 440 V
• Rated impulse withstand voltage Uimp: 4 kV
• Power dissipation per pole (max): 1.25 W
• Operating temperature: -40 to +70 °C
• Storage temperature: -40 to +80 °C
• Max altitude: 2000 m
• Terminal tightening torque: 1.8 to 2 Nm
• Mechanical life: 20000 cycles
• Weight: 388 g
• IP degree (frontal): IP20
• Pollution degree: 2

What’s Included

• Lovato P1MBUH3PC08 3P miniature circuit breaker (C curve, 8 A)
• Installation leaflet or quick-start guidance
• Manufacturer datasheet (downloadable)
• Protective packaging for transit

Applications

• Three-phase distribution boards and sub-circuits
• Industrial control panels and OEM machinery
• Motor and inductive load circuits suited to C-curve devices
• Commercial building services and plant rooms

Safety note: Installation and maintenance must be performed by qualified personnel. De-energise circuits before work, tighten terminals to 1.8–2 Nm, and observe the specified ratings and standards.