Leuze MSI‑TRMB‑01 | Safety Relay Expansion Module | Screw Terminals Overview The Leuze MSI‑TRMB‑01 is a relay expansion module designed to extend the number of safety outputs available for MSI-series safety relays. It features three force-guided normally open relay outputs and connects easily via screw terminals. Compact and robust, it is ideal for applications requiring additional switching capacity or safety contact extension. Key Features 3 NO (normally open) force-guided relay contacts Designed for output expansion in MSI safety relay systems Compatible with MSI-SR series and other base units Screw-type terminal block for secure wiring DIN-rail mountable for easy integration Passive expansion—powered through base relay Technical Specifications Catalog Number: 547931 Product Series: MSI-TRMB-01 Function: Output expansion module Safety Outputs: 3 x NO (relay contacts), 250 V AC / 6 A Contact Type: Force-guided relays Power Supply: Via base unit (no separate power input) Terminals: Screw terminals (pluggable) Mounting: DIN rail Protection Class: IP20 (terminals), IP40 (housing) Operating Temperature: 0 °C to +55 °C Storage Temperature: –25 °C to +70 °C Dimensions: 22.5 × 99 × 114 mm Weight: Approx. 160 g Applications Expanding the output capacity of MSI safety relays Safety systems requiring multiple actuator or contactor switching Machine and process safety systems in packaging, manufacturing, and robotics OEM automation panels with scalable safety architecture Why Choose the MSI‑TRMB‑01 Adds 3 safety-rated relay outputs to your system Compatible with Leuze MSI controllers Simple, tool-free wiring via pluggable screw terminals Compact design for space-constrained panels Proven Leuze quality and reliability Order Now The Leuze MSI‑TRMB‑01 safety relay expansion module (Part no. 547931) is available and ships worldwide.