Siemens 5SJ4203-7HG41 Miniature Circuit Breaker 2-Pole 3A 240VAC

The Siemens 5SJ4203-7HG41 is a high-quality miniature circuit breaker (MCB) designed for branch circuit protection in residential, commercial, and industrial electrical systems. This 2-pole breaker is UL 489 listed, ensuring compliance with North American safety standards, and features a C tripping characteristic, which provides medium time delay suitable for applications with moderate inrush currents, such as motor startups or lighting circuits. Rated at 3A and 240VAC, it offers reliable overcurrent and short-circuit protection with an interrupting capacity of up to 10kA per UL standards (6kA per IEC). Key features include DIN rail mounting for easy installation, compact design for space-saving in panels, and robust construction for durability in demanding environments. Advantages over similar products include Siemens' reputation for reliability, quick trip response to prevent damage, and compatibility with global standards (IEC/EN 60898 and UL 489). Benefits include enhanced safety, reduced downtime, and cost-effectiveness for low-current applications. Drawbacks may include limited suitability for high-inrush loads compared to D-curve breakers and a higher initial cost than non-UL listed alternatives. Ideal for use in control panels, distribution boards, and building automation systems. Condition appears new or surplus based on images, with no visible damage; includes faceplate details like 'C3' for 3A C-curve and barcode '5SJ4203-7HG41' (noting image discrepancy possibly to 5SJ4207-7HG41, assumed as 5SJ4203-7HG41 per query). Estimated market price for new: $100-150 USD; used: $50-80 USD. Relevant resources: Siemens 5SJ4 Series Datasheet (available at https://www.siemens.com/download?A6V10134300), UL 489 MCB Brochure (summary: covers specs, installation, and curves), Model Number Decoder Guide (explains '5SJ42' as 2-pole, '03' as 3A, '7' as C-curve, 'HG41' as UL version).