Overview
The Pilz PZE 9 24VDC safety relay (part number 774150) is a contact expansion module designed to increase the number of available safety contacts on existing safety relay systems. As a delayed and instantaneous contact expansion module from the PNOZ X product group, it expands the number of available contacts and is used as an expansion module for safety contacts on a base unit. This unit operates at 24 VDC and meets international safety standards including SIL 3 and PL.e certification.
Key Features
- 8 instantaneous safety outputs (8NO contacts in series, rated 8A at 24VDC DC-1 or 240VAC AC-1) and 1 instantaneous auxiliary output (1NC contact)
- LED indicator for monitoring channel status (1 or 2) and supply voltage
- Positive-guided relay outputs with feedback loop connection for monitored safety functions
- Plug-in terminal connections available with either spring-loaded or screw terminals
- SIL 3 / PL.e / Cat.4 certification with PFH = 2.31E-09
- Dual-channel operation capability
Technical Specifications
- Supply voltage: 24VDC nominal
- 2 × digital inputs at 24VDC, 40mA maximum
- Output contacts: 8NO (2 N.O. contacts in series per output) / 1NC (2 N.C. contacts in parallel)
- Output rating: 8A at 24VDC DC-1 or 240VAC AC-1 (resistive load)
- Module width: 90 mm
- Connection type: Screw or spring-loaded terminals
- Compliant with VDE 0113-1, EN 60204-1 and EN 62061
- Operating modes: Single or dual-channel
Typical Applications
The PZE 9 is primarily used for increasing the number of contacts between safety-related control devices such as E-stops and safety gates. Common industrial applications include:
- Machine guarding and safety interlock circuits
- Emergency stop (E-STOP) system expansion
- Safety gate monitoring and control
- Light barrier integration in safety circuits
- Factory automation and conveyor safety systems
- Robotics cell safety expansion
Compatibility & Replacements
Compatible With
- Pilz PNOZ X safety relay series base units
- All Pilz safety control systems with feedback loop monitoring
- 24VDC safety relay circuits requiring contact expansion
- Single and dual-channel safety control architectures
- EtherCAT and Pilz SafetyBUS p communication networks (when used with compatible base units)
Replaces / Drop-In Replacement For
- Pilz PZE 9 774150 (original manufacturer part number)
- Pilz PZE9 contact expansion modules with matching 24VDC/8NO/1NC specifications
Works With
- Pilz PNOZ X base safety relays (firmware versions supporting contact expansion)
- Pilz PAS4000 and PAScal engineering software for safety circuit configuration
- Positive-guided relay feedback loop monitoring systems
- Standard 24VDC industrial control power supplies
- Conventional electromechanical relay circuits (voltage-free contacts)
