Leuze MSI-SR4B-01 547950 Safety Relay
The Leuze MSI-SR4B-01 is a high-reliability Safety Relay (Part No. 547950) designed for precise monitoring, fast switching response, and dependable safety control. Manufactured by Leuze, this Safety Relay component helps maintain secure operation of industrial machines by providing consistent monitoring and control of safety circuits.
| Brand | Leuze |
| Product | Safety Relay |
| Model Number | MSI-SR4B-01 |
Leuze MSI-SR4B-01 547950 Safety Relay - Technical Specifications
| Specification | Value |
|---|---|
| Application | E-Stop circuits, Optoelectronic protective devices, Position switches (mechanical contacts), Solenoid switches (reed contacts, equivalent), Transponder switches (OSSD outputs) |
| Number of connections | 1 Piece(s) |
| Type of connection | Terminal |
| Type | Safety-related switching output OSSD |
| No. of pins | 16 -pin |
| Ambient temperature, operation | 0 ... 55 °C |
| Ambient temperature, storage | -25 ... 70 °C |
| Degree of protection | IP 20 (terminals), IP 40 (housing) |
| Net weight | 170 g |
| Supply voltage | 24 V, AC/DC, -20 ... 20 % |
| Voltage type | AC/DC |
| Switching element | Relay, NO |
| Switching frequency | 3600 switching cycles/h |
| Response time | 10 ms |
| Dimension (W x H x L) | 22.5 mm x 99 mm x 114.1 mm |
| Housing material | Plastic |
| Plastic housing | PA 66 |
| Housing color | Gray |
| Type of display | LED |
The Leuze MSI-SR4B-01 (Part No. 547950) functions by continuously monitoring safety devices such as emergency stop buttons, safety light curtains, and safety gates. When a safety event is detected, the relay interrupts the control circuit to stop machinery or prevent operation, ensuring personnel protection and preventing accidents. Its fail-safe design guarantees reliable operation even in complex automation setups.
Industrial applications include robotic cells, automated assembly lines, conveyor systems, packaging machinery, and press operations. The MSI-SR4B-01 ensures critical safety circuits remain active, coordinates machine shutdowns during hazards, and supports compliance with safety regulations in high-risk production environments.
Engineered for harsh industrial conditions, the MSI-SR4B-01 provides long-term reliability under vibration, dust, and continuous operation. Its robust construction and high-quality electronic components maintain stable performance, ensuring consistent protection and minimal downtime in automated manufacturing systems.