The Rockwell Automation MSR45E Safety Relay Expansion Module User Manual provides safety guidelines, specifications, installation, and maintenance instructions.
This manual describes the MSR45E safety relay expansion module, which is used together with Rockwell Automation MSR41 or MSR42 control modules to add safety relay contacts. It explains the module’s features, compliance, and how it can be chained up to three modules per main controller.
Key sections include certification, dimensions, terminal configuration, wiring hardware, LED indicator functions, selection tables, inspection and maintenance procedures, technical data, and arc‑limitation diagrams. This manual is written in Chinese.
| Operating temperature range | 0 °C to +55 °C |
|---|---|
| Storage temperature range | -25 °C to +70 °C |
| Protection rating | IP20 |
| Net weight | 150 g |
| Module dimensions (L×W×H) | 111 mm × 22.5 mm × 125 mm |
| Maximum contact rating | 250 V AC, 8 A |
| Minimum switching current | 10 mA |
| Maximum number of expansion modules per main module | 3 |
| Contact material | AgSn0 2 + 0.2 µm Au plating |
| Dangerous failure rate (PFH) | 6.0 × 10⁻⁹ 1/h |
Up to three MSR45E expansion modules can be connected to each main module.
The module operates from 0 °C to +55 °C and can be stored from –25 °C to +70 °C.
The green LED shows that the module’s contact is closed (active).
The module has an IP20 protection rating.