Siemens Contact Block and Holder, Screw Terminal Connection, Front Plate Mounting - SIRIUS ACT Series - 3SU1550-1AA10-1BA0 Keep the current flowing in your electrical system with this contact block and holder from Siemens. When wired up to a switching element, it allows electricity to pass through it and complete the circuit in the on position. A wide operating temperature range between -25°C and +70°C makes it the ideal choice for heavy-duty industrial settings. You’ll find a unit like this commonly used with lighting networks and reset switches. Features & Benefits • Space-saving size of 40 (H) x 30 (W) x 49.8mm (D) lets you squeeze it into tight work areas
• Voltage-tested up to 6kV for protection from electrical surges
• Terminal has an IP20 rating, so it's touch-proof and protected against objects larger than 12mm, like tools and wires How reliable is this product? The contacts in this unit have a high reliability rating of just one maloperation per 100 million when operated at 17V and 5mA, so it's a dependable choice. What's this unit's supply voltage range? This device has a broad operating voltage range between 5 and 500V for compatibility with common electrical sources.