Overview
The Schmersal AES 1145 is a safety-monitoring module engineered for reliable machine safeguarding in industrial automation applications. This compact module provides monitored safety contacts and is certified to relevant functional safety standards, making it an essential component in emergency-stop circuits, guard interlocks, and safety sensor monitoring systems.
Key Features
- Monitored positive-action safety contacts for fail-safe operation
- 24VDC supply voltage with 250VAC switching capacity
- DIN rail mounting (standard EN 60715 compliant)
- Integral System Diagnostics (ISD) with LED status indication
- Compact form factor suitable for control cabinet integration
- Compliance with EN 60204-1, EN 60947-5-3, and EN ISO 13849-1
Technical Specifications
The AES 1145 operates on 24VDC supply with rated switching capacity of 250VAC. The module features dual safety relays with positive-guided contacts and integrates automatic or manual reset options depending on application requirements. Mounting is direct to standard DIN rails without additional hardware, allowing rapid integration into existing control systems.
Typical Applications
- Emergency-stop button circuits and safety relay chains
- Safety guard and interlock door monitoring
- Non-contact magnetic safety sensor circuits (BNS range compatible)
- Machinery start/stop control with safety verification
- Industrial machine tool protection systems
Compatibility & Replacements
Compatible With
- Standard DIN rail control systems (EN 60715)
- 24VDC industrial control power supplies
- Schmersal BNS magnetic safety sensors
- Safety-critical control circuits (PLd to PLe per ISO 13849-1)
- Emergency-stop networks and interlocking systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The AES 1145 is part of the Schmersal AES series. Related models include the AES 1135, AES 1136, AES 1146, and AES 1235, but direct interchangeability should be confirmed with technical specifications and wiring diagrams.
Works With
- Schmersal PROTECT multi-functional safety relay modules
- Schmersal safety sensor product lines (BNS, BNS 260, BNS LS)
- Industrial control architectures utilizing monitored safety contacts
- IEC 61508 and ISO 13849-1 certified safety systems






