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Series 77 - Modular solid state relay (SSR) 5 - 15 - 30 A - FINDER
Series 77 modular solid state relays (SSRs) from FINDER are designed for precise, noiseless switching of resistive, inductive, and capacitive loads in industrial and building automation. These compact, panel-mount devices are available in 5 A, 15 A, and 30 A nominal current ratings, with zero-crossing or random-fire switching modes for optimal l...
Series 77 modular solid state relays (SSRs) from FINDER are designed for precise, noiseless switching of resistive, inductive, and capacitive loads in industrial and building automation. These compact, panel-mount devices are available in 5 A, 15 A, and 30 A nominal current ratings, with zero-crossing or random-fire switching modes for optimal load control. They feature built-in snubber circuits for transient protection, LED status indication, and a wide input control voltage range (typically 4-32 VDC or 24-275 VAC). The SSRs are rated for operating voltages up to 600 VAC and offer high isolation between input and output (≥4000 Vrms). Their modular design allows direct mounting on DIN rails (EN 60715) without additional heatsinks for lower current models, making them ideal for compact control panels.
These SSRs are primarily used in industrial heating control (ovens, furnaces, injection molding machines), lighting control (LED, HID, and incandescent), motor soft-start applications, and process automation. They are also common in HVAC systems, packaging machinery, and building management systems where silent, maintenance-free switching is required. The modular form factor suits distributed control cabinets and sub-distribution boards.
The Series 77 category includes subcategories such as 5 A SSRs (e.g., 77.01.0.240.8300), 15 A SSRs (e.g., 77.11.0.240.8300), and 30 A SSRs (e.g., 77.21.0.240.8300). The part number structure typically follows: 77.XX.0.240.8300, where XX indicates the current rating (01 for 5 A, 11 for 15 A, 21 for 30 A). These are the main articles; accessories like heatsinks and mounting brackets are listed separately.
At Electric Automation Network, we offer the Series 77 SSRs with up to 65% discount off list price, real-time pricing, and express worldwide shipping. Our team of specialized engineers provides personalized technical support, including load calculation, thermal management advice, and selection assistance. Each product includes detailed technical documentation, wiring diagrams, and datasheets to ensure correct installation and operation.
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