Eaton SPHM2RM0010 Hydraulic Magnetic Supplementary Protector

It's a two-pole hydraulic magnetic supplementary protector rated 10A. Two poles means it breaks both conductors of the circuit at once, so it suits line and neutral switching or a two-wire branch in control and equipment panels.

It's built to ride through it. The SPHM2RM0010 carries a medium time delay with an 18X inrush delay, so it tolerates a starting surge up to eighteen times its 10A rating for the delay period before tripping. That's the behavior you want ahead of a motor, transformer, or switch-mode power supply, where a straight thermal device would nuisance trip on every start.

No. This is a supplementary protector, not a branch circuit breaker. Supplementary protectors provide added protection inside equipment or downstream of a branch circuit device that is already protecting the circuit. If you need the main or branch overcurrent device for a panelboard, specify a listed circuit breaker instead.

Yes, it's rated 50-60 Hz, so the same part works on North American 60 Hz power and on 50 Hz systems overseas. Useful if you're building equipment that ships internationally and you want one bill of materials.

The protector is IP20, which means finger-safe against solid objects 12.5mm and larger but no protection against water. Mount it inside an enclosure or behind a panel door. It is not suitable for wet, washdown, or outdoor locations without a rated enclosure around it.

Hydraulic magnetic devices like the SPHM2RM0010 trip on current through a solenoid with a fluid damped delay, so their trip point does not drift with ambient temperature. Thermal and thermal magnetic devices are temperature sensitive and will trip early in a hot cabinet and late in a cold one. In a tightly packed control enclosure, or outdoor equipment seeing wide temperature swings, the hydraulic magnetic unit holds its 10A rating consistently.

Order Eaton SPHM2RM0010. That single part number covers the 10A, two-pole, medium delay hydraulic magnetic supplementary protector with the 18X inrush rating, so there are no suffixes or options to add on the order line.