• Rockwell Automation India Private Limited

Industrial Control Relays

Despite increasing complexity, control systems and installations must become increasingly compact. And the CS4 miniature relay system packs maximum performance into minimum space. Sprecher + Schuh has subjected this relay series to monitored endurance tests that demonstrate their ruggedness. Under normal duty, CS4 contacts have a maximum electrical life of 3,500,000 operations, while the AC magnet system has a mechanical life of 10,000,000 operations. The coil is designed for absolute undervoltage reliability. Undervoltages that do not cause the contactor to close can be withstood indefinitely without damage. CS4 control relays are perfect for fail-safe control circuits. An interlock contact design, which maintains minimum 0.3 mm clearance, prevents the NC contact from reclosing if the NO contact is welded when in operation. For low-level signal applications (like PLCs), a CS4-B relay is available with H-bridge, bifurcated contacts for signal reliability to 17 V at 5 mA. The entire CS4 system is logically engineered. Auxiliary contact blocks and timing elements are modular and snap-on without increasing the CS4's original width of 45 mm. Once the CS4 is installed, all auxiliary contact blocks can be snapped on or removed without changing any existing wiring. CS4 relays are DIN-rail mountable for instant installation and modification. Fittings are also included for base mounting. All terminals are clearly marked and shipped in the open position for installation with either manual or power screwdrivers. A complete identification system is available using self-adhesive labels, paper tags or plastic clip-on tags. All Sprecher + Schuh CS4 miniature control relays are UL-listed and CSA-approved. They also carry the CE mark, and offer back-of-hand protection to the highest international standards.