Description
The Pilz 774100 safety relay is a standalone ATEX-rated control device designed for intrinsically safe monitoring of emergency stop circuits and safety gates. Operating on a 230 VAC supply, it provides safety-rated relay outputs for hazardous industrial environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Pilz |
| Category |
Safety Relays |
| Part Number |
774100 |
| Subcategory |
Intrinsically Safe Safety Relays |
| Product Series |
PNOZ EX |
| Relay Type |
Standalone safety relay |
| Supply Voltage |
230 V AC |
| Power Consumption |
8 VA |
| Number of Inputs |
2 |
| Input Configuration |
2-channel, intrinsically safe, short-circuit detection |
| Safety Outputs |
3 N/O, 1 N/C |
| Intrinsically Safe Outputs |
2 N/O |
| Max Switching Voltage AC1 |
240 V |
| Max Switching Current AC1 |
4 A |
| Max Switching Voltage DC1 |
24 V |
| Max Switching Current DC1 |
2 A |
| Utilization Category |
AC15 / DC13 |
| Max Switching Current AC15 |
4 A |
| Ambient Temperature |
-20 to +55 °C |
| Humidity Rating |
93% RH at 40 °C |
| Terminal Style |
Fixed screw terminals |
| Conductor Size |
24–10 AWG |
| Dimensions (H x W x D) |
87 x 112.5 x 121 mm |
| Weight |
725 g |
Information About 774100
The 774100 is part of the Pilz PNOZ EX safety relay series developed for use in potentially explosive environments requiring intrinsically safe control circuits. It supports dual-channel input wiring with detection of shorts across contacts to maintain high diagnostic coverage in safety-critical applications. The relay provides both standard and intrinsically safe outputs, enabling reliable switching of safety circuits within ATEX-regulated zones. Designed with integral screw terminals and a robust enclosure, it supports secure installation in industrial control panels operating on 230 VAC.
Key Features
- PNOZ EX ATEX-Certified Design: Developed for intrinsically safe applications in hazardous environments where explosion protection is required.
- Dual-Channel Intrinsically Safe Inputs: Supports two-channel safety wiring with short-circuit detection to enhance fault detection and system reliability.
- Multiple Safety Outputs: Provides 3 normally open and 1 normally closed safety contacts for flexible safety circuit control.
- Additional Intrinsically Safe Outputs: Includes 2 intrinsically safe normally open outputs for direct connection to IS-rated field devices.
- Monitored Start Function: Ensures controlled and supervised restart behavior after safety events.
- High Electrical Ratings: Safety contacts support up to 240 VAC and 4 A, allowing direct switching of industrial contactors.
- Industrial Wiring Interface: Fixed screw terminals support conductor sizes from 24 to 10 AWG for secure and vibration-resistant connections.
The 774100 delivers the reliability and precision required for intrinsically safe emergency stop and safety gate monitoring in hazardous industrial environments.
