Product Overview

The SICK i150RP safety switch is a robust, reliable device designed for safe mechanical protection in industrial environments. It features a slow action switching element that ensures precise and safe operation during actuation events. Engineered with individual wiring and diagnostics, the i150RP provides a simple yet effective solution for safeguarding machinery against unintended movement or overreach. With a high actuation frequency of up to 3,600 cycles per hour, it is suitable for applications requiring frequent but safe switching actions. The device combines durability with ease of integration, making it ideal for use in demanding industrial settings where safety and performance are critical.

Key Features and Technology

The i150RP employs a slow action switching element to ensure reliable and predictable response during actuation events. This technology supports safe operation by minimizing unintended or delayed responses, enhancing overall system reliability. The switch is designed for individual wiring only, with no support for safe series connections, ensuring clear diagnostics and fault detection at the component level. It operates reliably under a range of electrical conditions, including switching voltages of ≥5 V DC and switching currents of 5 mA (at 5 V DC). Its construction uses die-cast lightweight metal housing, contributing to both mechanical strength and reduced weight for easier installation.

Technical Characteristics

The i150RP is rated for a maximum operating current of 3 A at 240 V AC or 2 A at 24 V DC. It has an insulation rating of 250 V and an impulse withstand voltage of 2,500 V, ensuring safe operation under electrical stress conditions. The device includes short-circuit protection rated T6, providing essential safety during fault events. Switching is initiated at a minimum voltage of 5 V DC with a current requirement of 5 mA. The housing dimensions are 69 mm × 203 mm × 85 mm and weighs 0.84 kg (net unit weight: 0.768 kg). It meets IP65 protection standards, offering dust-tight and water-resistant performance as defined by IEC 60529.

Configuration and Integration

The i150RP is configured with a cable gland connection featuring three M20 threaded ports for secure mounting and conductor attachment. The maximum allowable conductor cross-section is ≤1.5 mm², ensuring compatibility with standard wiring solutions. Connection is limited to individual wiring only; safe series connections are not supported. This design allows straightforward integration into safety circuits while maintaining diagnostic integrity through individual component monitoring. Diagnostics are enabled via individual wiring, allowing for real-time detection of faults or malfunctions in the switch itself.

Operating Environment

The i150RP is designed to operate reliably within an ambient temperature range of –25 °C to +80 °C. It can also be stored under similar conditions, ensuring stability during both active operation and long-term storage. The device’s IP65 enclosure rating provides protection against dust ingress and water splashes from any direction, making it suitable for use in harsh industrial environments. These environmental specifications ensure consistent performance across a wide range of operating conditions, including high-temperature or wet areas.

Industrial Applications

The SICK i150RP safety switch is ideal for use in machinery where mechanical safety is critical, such as in conveyor systems, automated production lines, and material handling equipment. Its slow action switching principle ensures safe response during movement detection or stop commands. The device’s high actuation frequency of ≤3,600/h supports continuous operation in dynamic environments. With its robust construction and reliable diagnostics, it serves effectively in applications requiring consistent safety performance without complex circuitry or series configurations.