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The E-T-A 808-H-0.3A is a single-pole, resettable circuit breaker featuring a magnetic fast trip mechanism. It is designed for PCB mounting, making it suitable for space-saving applications. The breaker operates with a rated voltage of 24VDC and has a current rating range from 0.01A to 5A, with this specific model set at 0.3A.
Its magnetic tripping principle ensures reliable protection against overcurrents, particularly for sensitive PCB components. The design offers low temperature sensitivity, meaning its function is largely independent of ambient temperature. This circuit breaker is ideal for protecting semiconductors in control and regulation circuits and can also serve as a safety and control switch.
The device supports quick and convenient switching on after an overcurrent trip, increasing device availability. It reduces operating costs by eliminating the need for fuses and simplifies component planning and storage. The internal resistance for the 0.3A rating is 0.89 Ohms.
Approvals include CSA C22.2 No 235 and UL1077. The dielectric strength is rated at 1,240 VAC between various circuits, and insulation resistance is greater than 100 MΩ at DC 500 V.
The rated voltage is 24 VDC.
The nominal current rating is 0.3 A.
It is designed for PCB mounting.
It is a single-pole circuit breaker.
It uses a magnetic fast trip mechanism.
The dielectric strength is 1,240 VAC between the operating area and test circuit, excitation and switching circuits, and excitation and signalling circuits.