Product Overview
The Turck IM1-451EX-T is an intrinsically safe signal conditioner and isolation barrier designed for use in hazardous environments requiring explosion-proof safety. Part of Turck’s Excom series, this device ensures reliable signal transmission between field devices (e.g., sensors, transmitters) and control systems in Zone 0/20 explosive atmospheres (gas/dust). Its compact, DIN rail-mountable design simplifies integration into control cabinets, while the galvanic isolation protects against ground loops and electrical interference. The IM1-451EX-T complies with ATEX, IECEx, and UL standards, making it suitable for oil and gas, chemical processing, and mining applications.
Engineered for versatility, the module supports analog signals (4–20 mA, 0–10 V) and features a rugged housing with IP20 protection for indoor use. Its fail-safe design ensures continuous operation in critical safety systems.
Key Technical Parameters
The IM1-451EX-T is defined by precision-engineered specifications for hazardous areas:
- Input/Output Signals: 4–20 mA, 0–10 V (galvanically isolated).
- Operating Voltage: 18–32 V DC (±10%), compatible with 24 V DC industrial systems.
- Isolation Voltage: 2.5 kV AC (between input, output, and power supply).
- Temperature Range: -20°C to +60°C (operational), -40°C to +85°C (storage).
- Accuracy: ±0.1% of full scale for high-precision signal conditioning.
- Response Time: <50 ms for real-time signal processing.
- Certifications: ATEX/IECEx (II 1/2G/D Ex ia IIC T6 Ga/Gb, II 1/2D Ex ia IIIC T85°C Da/Db), UL Class I Div 1/2.
These parameters ensure safe and reliable signal transmission in explosive environments.
Primary Applications
The IM1-451EX-T is critical in industries requiring intrinsically safe signal conditioning:
- Oil & Gas: Interfaces pressure transmitters and flow meters in refineries and pipelines.
- Chemical Plants: Isulates signals from pH sensors, temperature probes, and gas detectors.
- Mining: Protects control systems in methane-rich environments and conveyor belt monitoring.
- Pharmaceutical: Ensures safety in explosive dust zones during powder handling.
- Energy Storage: Safeguards battery management systems in lithium-ion production.
Its ATEX/IECEx compliance also suits offshore platforms, paint spray booths, and grain silos.
Competitive Advantages
The IM1-451EX-T outperforms standard isolators through specialized design:
- Intrinsic Safety: Certified for Zone 0/20 (gas/dust), eliminating ignition risks.
- High Accuracy: ±0.1% precision ensures reliable data for process control.
- Galvanic Isolation: Protects against ground loops, EMI, and voltage surges.
- Compact Footprint: Space-saving DIN rail mounting optimizes cabinet space.
- Wide Compatibility: Supports analog signals and multiple power configurations.
These features reduce system downtime, enhance safety, and simplify compliance with global standards.
Functional Features
The IM1-451EX-T delivers advanced functionality for hazardous environments:
- Fail-Safe Operation: Continuous monitoring of input/output signals for fault detection.
- LED Status Indicators: Visual diagnostics for power, input, and output status.
- Reverse Polarity Protection: Safeguards against wiring errors.
- Plug-and-Play Wiring: Spring-clamp terminals enable tool-free installation.
- EMI/RFI Immunity: Shielded electronics minimize noise interference.
Combined with Turck’s rigorous quality assurance, the IM1-451EX-T is a trusted solution for engineers prioritizing safety, precision, and compliance in explosive atmospheres.
| Parameter | Value/Description |
| Product Category | Intrinsically Safe Isolator / Signal Conditioner |
| Model Number | IM1-451EX-T |
| Input Type | Analog Input (4–20 mA, 0–10 V, etc.) |
| Output Type | Analog Output (4–20 mA, 0–10 V) or Digital (depending on configuration) |
| Power Supply | 18–32 V DC |
| Operating Voltage | 24 V DC (nominal) |
| Isolation Voltage | 2.5 kV AC (between input, output, and power supply) |
| Accuracy | ±0.1% of full scale |
| Response Time | ≤ 10 ms |
| Communication Interface | HART protocol compatibility (optional) |
| Protection Rating | IP20 (enclosure) |
| Certifications | ATEX, IECEx (Ex ia IIC T6 Ga), CE, UL Class I Div 2 |
| Hazardous Area Approval | Zone 0/20 (Gas/Dust) |
| Operating Temperature | -20°C to +60°C (-4°F to +140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Housing Material | Polycarbonate (flame-retardant) |
| Mounting | DIN Rail (EN 60715) |
| Connection Method | Screw terminals (spring-loaded) |
| Dimensions (W x H x D) | 12.5 mm x 110 mm x 117 mm (0.49" x 4.33" x 4.61") |
| Weight | Approx. 150 g (0.33 lbs) |
| EMC Compliance | EN 61326-1 (Industrial Immunity) |
| Power Consumption | ≤ 2.5 W |
| Channels | 1 input / 1 output (galvanically isolated) |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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