
Product Specifications
Manufacturer: COMITRONIC - BTI
Part Number: AWAX26XXL
Product Type: Emergency stop safety relay
Safety Level: PL = e (EN ISO 13849-1), Safety Category 4, SIL 3, MTTFd = 415 years, DC = 99%, CCF = 90%
Output Contacts: 3x NO 8A/250V redundant / 1x NC 8A/250V serial (XXL) or parallel (XXLP); AC1 8A/250V
DLC Short-Circuit Detection: Ultra-fast 2 µs short-circuit detection with self-resetting; cable severing protection; anti-gluing reset control
Safety Performance: B10d = 100,000 at 5A; risk duration max 20 ms; monitors up to 30 switches
Mounting & Certifications: Compact 22.5 mm symmetrical DIN rail; IP20; TÜV Rheinland 01/205/5168/11; UL 508/C22.2 no.14 C-UL-US listed
Product Description
The COMITRONIC AWAX26XXL is an emergency stop safety relay that distinguishes itself through an extraordinary technical achievement: its patented DLC (Dynamic Short-Circuit Detection) system can identify a short circuit in just 2 microseconds and automatically reset itself once the fault is cleared. This reaction speed—orders of magnitude faster than conventional safety relays—means the AWAX26XXL can protect downstream contacts and wiring with unprecedented precision, limiting fault energy and preventing damage before it can occur. Packaged in a compact 22.5 mm DIN rail housing, this module represents a new benchmark in safety monitoring for critical industrial applications.
The safety credentials of the AWAX26XXL are impeccable. It is certified to the highest attainable performance levels under current international standards: PL = e according to EN ISO 13849-1, Safety Category 4, and SIL 3 (Safety Integrity Level 3). These certifications are backed by exceptional reliability metrics, including a Mean Time to Dangerous Failure (MTTFd) of 415 years, a Diagnostic Coverage (DC) of 99%, and a Common Cause Failure (CCF) score of 90%. The unit achieves a B10d of 100,000 cycles at a 5A load, with a maximum risk duration of just 20 milliseconds. Cable severing protection is built in, automatically opening safety lines upon detection of a wiring fault.
The output configuration is designed for redundancy and diagnostic transparency. Three normally open (NO) safety contacts, each rated at 8A/250V AC, provide redundant switching paths for the safety circuit, ensuring that even if one contact fails, the safety function remains intact. A fourth, normally closed (NC) auxiliary contact provides a dedicated feedback signal for external monitoring by a PLC or controller. This auxiliary contact is available in a serial configuration (XXL version) or a parallel configuration (XXLP version). The unit is powered by 24V AC/DC, with a dedicated 12V version available for mobile and embedded applications. The front panel features three LED indicators for rapid diagnostic status monitoring, and the reset behavior (automatic or manual) is configurable via a rear-mounted DIP switch.
The AWAX26XXL is engineered for seamless integration into industrial safety systems. It supports the Acotom process for monitoring up to 30 individual safety switches, including emergency stop buttons, interlock switches, grip switches, and two-hand control stations. It also enables dual-zone safety architectures. The device carries comprehensive international certifications, including TÜV Rheinland and UL/CSA listings, ensuring global regulatory acceptance. For OEMs and system integrators seeking the ultimate in safety performance, speed, and diagnostic capability, the COMITRONIC AWAX26XXL offers a uniquely compelling and technically superior solution.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | COMITRONIC - BTI |
| Part Number | AWAX26XXL |
| Product Type | Emergency stop safety relay |
| Performance Level (PL) | PL = e (EN ISO 13849-1) |
| Safety Category | 4 |
| Safety Integrity Level | SIL 3 |
| MTTFd | 415 years |
| B10d | 100,000 at 5A |
| Diagnostic Coverage (DC) | 99% |
| CCF | 90% |
| Risk Duration | 20 ms max |
| Safety Outputs | 3x NO 8A/250V redundant |
| Auxiliary Output | 1x NC 8A/250V serial (XXL) or parallel (XXLP) |
| DLC Detection Time | 2 µs, self-resetting |
| Supply Voltage | 24V AC/DC; 12V version for embedded |
| Mounting | Symmetrical DIN 35mm rail |
| Protection Degree | IP20 electrical box |
| Operating Temperature | -20°C to +60°C |
| Certifications | TÜV Rheinland, UL 508 / C22.2 no.14 C-UL-US |
Resources & Documentation
COMITRONIC AWAX26XXL Emergency Stop Safety Relay with 2 µs DLC Detection and PL e / SIL 3
Product Specifications
Manufacturer: COMITRONIC - BTI
Part Number: AWAX26XXL
Product Type: Emergency stop safety relay
Safety Level: PL = e (EN ISO 13849-1), Safety Category 4, SIL 3, MTTFd = 415 years, DC = 99%, CCF = 90%
Output Contacts: 3x NO 8A/250V redundant / 1x NC 8A/250V serial (XXL) or parallel (XXLP); AC1 8A/250V
DLC Short-Circuit Detection: Ultra-fast 2 µs short-circuit detection with self-resetting; cable severing protection; anti-gluing reset control
Safety Performance: B10d = 100,000 at 5A; risk duration max 20 ms; monitors up to 30 switches
Mounting & Certifications: Compact 22.5 mm symmetrical DIN rail; IP20; TÜV Rheinland 01/205/5168/11; UL 508/C22.2 no.14 C-UL-US listed
