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Series 45 miniature PCB relays from Finder are compact, high-performance electromechanical relays designed for direct soldering onto printed circuit boards. These relays feature a 16 A rated current, making them suitable for switching resistive and inductive loads in control systems. Available in 1-pole (1 CO) and 2-pole (2 CO) configurations, t...
Series 45 miniature PCB relays from Finder are compact, high-performance electromechanical relays designed for direct soldering onto printed circuit boards. These relays feature a 16 A rated current, making them suitable for switching resistive and inductive loads in control systems. Available in 1-pole (1 CO) and 2-pole (2 CO) configurations, they support coil voltages from 5 VDC to 110 VDC and 12 VAC to 230 VAC, with a mechanical life exceeding 10 million operations. The series includes versions with reinforced insulation (6 kV/8 mm clearance) and optional IP67 protection for harsh environments. Their low profile (15.7 mm height) and 5 mm pin spacing optimize PCB layout density.
These relays are widely deployed in building automation, HVAC controls, industrial PLC interfaces, and energy management systems. Common applications include switching contactors, motor starters, lighting circuits, and signal isolation in programmable logic controllers. They are also used in elevator controls, security systems, and medical equipment where reliable galvanic isolation is critical. The PCB mounting design suits compact control panels and distributed I/O modules.
The Series 45 includes subcategories like the 45.31 (1 CO, 16 A, 250 VAC), 45.61 (2 CO, 8 A per pole), and 45.91 (1 CO, 16 A with test button and LED indicator). Part numbers follow the pattern 45.31.9.xxx.xxxx, where xxx denotes coil voltage (e.g., 45.31.9.012.0000 for 12 VDC). The 45.61 series offers bifurcated contacts for low-level switching, while the 45.91 integrates manual actuation for commissioning.
Electric Automation Network provides these relays with real-time pricing and up to 65% discount off list. Our engineering team offers technical selection support, including coil power calculation and contact life estimation. Orders ship express worldwide from stock, with documentation including datasheets and 3D CAD models available per article.
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