The Leuze MSI-TRMB-01 (Part No. 547931) is a safety relay designed for monitoring and controlling type 4 optoelectronic protective devices, such as single-beam safety sensors, in accordance with IEC/EN 61496. It features two safety-related relay outputs (NO) and three PNP transistor outputs, providing reliable performance in safety-critical applications.

Key Features:

Model: MSI-TRMB-01
Part Number: 547931
Brand: Leuze
Function: Safety relay for type 4 protective devices
Supply Voltage: 24 V DC (±20%)
Safety Outputs: 2 Normally Open (NO) relay contacts
Digital Outputs: 3 PNP transistor outputs (including error signal)
Safety Inputs: 2 channels for safety-related switching
Digital Inputs: 2 channels for start/restart interlock (RES)
Response Time: 130 ms
Restart Modes: Selectable automatic or manual restart
Safety Ratings:
- Performance Level: PL e (EN ISO 13849-1)
- Safety Integrity Level: SIL 3 (IEC 61508)
- Category: 4 (EN ISO 13849-1)
- SILCL: 3 (IEC/EN 62061)
- MTTFd: 100 years
- PFHD: 2.15 × 10⁻⁹ per hour
Mounting: DIN rail (snap-on)
Housing Width: 22.5 mm
Protection Rating: IP20 (housing and terminals)
Operating Temperature Range: -25°C to +55°C
Certifications: c UL us
Applications: Ideal for integrating type 4 safety sensors into control systems, ensuring compliance with high safety standards in industrial automation environments.

Leuze - MSI-TRMB-01 - Safety Relay, 2 NO + 3 PNP Outputs, 24 V DC, PL e, SIL 3

Leuze - MSI-TRMB-01 - Safety Relay, 2 NO + 3 PNP Outputs, 24 V DC, PL e, SIL 3