Description
The Turck IM21-14EX-CDTRI is an intrinsically safe signal isolator designed for the safe transmission of digital signals between hazardous and non-hazardous areas. It provides reliable isolation and signal conversion for NAMUR and mechanical contacts in process automation systems. This module is commonly used in safety-critical industrial environments where explosion protection and signal integrity are required.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Turck |
| Category |
Signal Interface & Isolation |
| Part Number |
IM21-14EX-CDTRI |
| Subcategory |
Intrinsically Safe Signal Isolator |
| Function |
Digital signal isolation and transfer |
| Number of Channels |
1 |
| Input Type |
NAMUR sensor or dry contact |
| Hazardous Area Rating |
Zone 0 / Zone 20 |
| Output Type |
Transistor output |
| Supply Voltage |
20–30 V DC |
| Isolation Voltage |
2.5 kV (input/output/supply) |
| Switching Frequency |
Up to 1 kHz |
| Response Time |
≤ 1 ms |
| Mounting Type |
DIN-rail mounting |
| Operating Temperature |
−25 °C to +70 °C |
| Housing Width |
12.5 mm |
| Weight |
250 g |
Information About
IM21-14EX-CDTRI
The IM21-14EX-CDTRI is part of Turck’s IM21 series of slim-line isolation and interface modules engineered for hazardous area applications. It features a compact DIN-rail housing with reinforced galvanic isolation between input, output, and power supply circuits. The module supports intrinsically safe input signals from Zone 0/20 and transmits them safely to control systems in safe areas. Its design ensures compliance with international explosion protection standards while maintaining stable signal processing in continuous industrial operation.
Key Features:
- Intrinsically Safe Inputs: Designed for connection to NAMUR sensors or dry contacts in hazardous areas.
- Galvanic Isolation: Provides safe electrical separation between input, output, and power supply circuits.
- Single-Channel Operation: Processes one digital signal with reliable state transfer.
- Slim DIN-Rail Design: Compact housing allows high channel density in control cabinets.
- Wide Compatibility: Supports NAMUR sensors and mechanical contact inputs.
- Fast Signal Response: Ensures accurate switching and minimal delay in signal transmission.
- Explosion Protection Compliance: Suitable for Zone 0/20 applications in process industries.
The IM21-14EX-CDTRI delivers the reliability and precision required for safe digital signal isolation in hazardous area automation systems.
