Why Choose the Lovato P1MBUH2PD03 Miniature Circuit Breaker?
The Lovato P1MBUH2PD03 is a two-pole miniature circuit breaker (MCB) designed for dependable branch-circuit protection in industrial electrical panels, machinery and automation systems. Part of the Lovato P1 MB series, this model combines a 3 A rated current with a Curve D tripping characteristic, making it suitable for low-current circuits where relatively high momentary inrush currents may occur.
The P1MBUH2PD03 is rated for 480Y/277 V AC under UL and provides a 10 kA short-circuit rating under both UL and IEC specifications. It complies with UL489 and IEC/EN 60947-2, providing standards-based protection against overload and short-circuit conditions in appropriate branch-circuit applications.
Occupying two DIN modules, the breaker installs on a standard 35 mm DIN rail and accepts IEC conductor sections from 1 to 35 mm². Its wide operating temperature range, IP20 frontal protection and mechanical endurance of 20,000 cycles support reliable service in professional industrial installations.
Key Advantages
- 3 A two-pole miniature circuit breaker for low-current branch circuits.
- Curve D tripping characteristic for circuits with higher momentary inrush currents.
- 480Y/277 V AC UL rated operational voltage.
- 10 kA UL and IEC short-circuit rating.
- UL489 compliant for appropriate branch-circuit protection applications.
- Compact two-module design for efficient DIN rail installations.
- Wide 1–35 mm² conductor connection range.
Key Features
- Lovato P1 MB miniature circuit breaker series.
- Two-pole (2P) configuration.
- 3 A rated current.
- Curve D tripping characteristic.
- 480Y/277 V AC UL rated operational voltage.
- 230/400 V AC IEC rated operational voltage.
- 125 V DC rated operational voltage.
- 10 kA UL and IEC short-circuit rating.
- 440 V rated insulation voltage with 4 kV impulse withstand voltage.
- 35 mm DIN rail mounting with IP20 frontal protection.
Reliable UL489 Protection for High-Inrush Loads
The Lovato P1MBUH2PD03 provides automatic protection against damaging overload and short-circuit conditions. Its Curve D characteristic provides greater tolerance for temporary starting currents than lower instantaneous-trip curves, helping prevent unwanted operation where suitable industrial loads produce significant inrush currents.
Combined with its 3 A rating, two-pole construction, 480Y/277 V AC UL rating, 10 kA short-circuit capability and UL489 compliance, the P1MBUH2PD03 provides a robust solution for appropriately engineered industrial branch circuits and control systems.
Typical Applications
- UL489 branch-circuit protection.
- Industrial electrical control panels.
- Low-current machine and automation circuits.
- Circuits with relatively high momentary inrush currents.
- Industrial power distribution assemblies.
- DIN rail-mounted circuit protection systems.
