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The 104-PR3-3A is a single-pole thermal circuit breaker manufactured by E-T-A. Designed for overcurrent protection in electrical circuits, this device operates reliably at 240VAC or 48VDC with a nominal current rating of 3A. The adjustable current range spans from 0.05A to 8A under AC conditions and up to 10A under DC conditions, providing flexible protection settings for various load requirements.
This breaker utilizes a thermal trip mechanism activated by a push-to-reset actuator, ensuring manual reset capability after a fault condition. It offers robust interrupting capacities of 6 times the nominal current for both AC and DC applications. Under UL 1077 standards, it provides a rupture capacity of 2000A at AC 250V and 200A at DC 48V, classified as C1.
Mechanically, the unit supports through-hole mounting with blade terminals and soldering pins. It maintains an IP40 ingress protection rating in the operating area and withstands vibration up to 10g and shock resistance up to 25g. The operating temperature range extends from -20°C to 60°C, making it suitable for diverse industrial and commercial environments.
The 104-PR3-3A operates at 240VAC and 48VDC.
Manually press the push-to-reset actuator to restore circuit continuity.
The breaker interrupts up to six times the nominal current for both AC and DC applications.
The device functions reliably within an ambient temperature range of -20°C to 60°C.