IDEC RY2S-U Miniature Relay

The IDEC RY2S-U is a miniature DPDT relay engineered for industrial automation and control panel applications requiring compact, high-density mounting. This general-purpose relay delivers switching capacity up to 3A at 240V AC with gold-plated silver contacts rated for extended electrical and mechanical duty cycles. The RY2S-U combines low contact resistance with multiple coil voltage options and socket compatibility, making it suitable for OEM integration in demanding industrial environments. ## Technical Specifications Electrical Performance • Contact configuration: DPDT (Double Pole Double Throw) • Contact rating: 3A @ 240V AC / 30V DC • Maximum switching capacity: 3A AC resistive, 3A AC inductive, 1A DC resistive, 0.5A DC inductive • Contact resistance: 50 mΩ maximum • Coil voltage options: 24VAC, 120VAC, 220VAC • Dielectric strength: 1500 VAC (between contacts) • Electrical life: 200,000 operations at 220V AC, 3A • Mechanical life: 50,000,000 operations • Maximum operating frequency: 1800 operations/hour (electrical), 18000 operations/hour (mechanical) Environmental Ratings • Operating temperature: -25°C to +50°C (standard); -25°C to +55°C and -30°C to +70°C variants available • Storage temperature: -55°C to +70°C • Operating humidity: 45% to 85% RH (no condensation) • Storage humidity: 45% to 85% RH (no condensation) Physical Specifications • Dimensions: 14 mm W × 27.5 mm H × 35.6 mm L • Weight: 23–34 g • Pin count: 8 • Mounting: Socket mount or PCB mount • Terminals: Plug-in, quick connect, solder, or PCB terminals • Contact material: Gold-plated silver ## Key Features • Low contact resistance (50 mΩ max) ensures minimal voltage drop • Dual-pole configuration supports independent circuit switching • Extended mechanical life (50 million cycles) reduces maintenance intervals • Multiple terminal options accommodate various assembly methods • UL recognized, CSA certified, TÜV approved, CE marked ## Typical Applications General-purpose industrial switching, automation control circuits, panel-mount relay banks, and equipment requiring high operational density with extended service life. ## Compatibility & Integration The RY2S-U integrates with IDEC RY Series sockets including SY2S-05 and SM2S-05, enabling standardized relay mounting across compatible control systems.