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Phone：+86 15383419322Description
The GE 8202-HO-IS is a 16-channel intrinsically safe (IS) digital output module designed for the GE Fanuc 90-30 programmable logic controller (PLC) platform, now supported under Emerson’s industrial automation portfolio. Specifically engineered for use in hazardous environments classified as Zone 0, Zone 1, or Class I, Division 1, this module provides galvanically isolated, relay-based discrete outputs that comply with international intrinsic safety standards—including ATEX, IECEx, and NEC. Unlike conventional digital output modules that require external safety barriers, the GE 8202-HO-IS integrates intrinsic safety circuitry directly into the module, significantly reducing panel space, wiring complexity, and installation costs while enhancing system reliability.
As part of the GE 90-30 I/O family, the GE 8202-HO-IS mounts into standard 90-30 baseplates and communicates seamlessly with the CPU via the backplane, enabling deterministic control of field devices such as solenoid valves, alarm beacons, motor starters, and small actuators located in explosive atmospheres. Each output channel is independently protected and capable of driving low-power loads directly in hazardous areas without additional interface hardware. The GE 8202-HO-IS represents a strategic solution for process industries seeking to modernize safety-critical control loops while maintaining compatibility with proven GE automation infrastructure—offering a rare combination of high channel density, regulatory compliance, and operational simplicity in a single-slot form factor.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | GE 8202-HO-IS |
| Manufacturer | GE Fanuc Automation (now part of Emerson) |
| Product Type | Intrinsically Safe Digital Output Module (16-channel relay) |
| Number of Outputs | 16 isolated channels |
| Output Type | Relay contacts (normally open, dry contact) |
| Contact Rating (Non-IS Side) | 2 A @ 30 V DC / 250 V AC |
| Intrinsically Safe Parameters (Field Side) | Typically ≤ 28 V DC, ≤ 100 mA per channel (exact values per certification) |
| Isolation | Galvanic isolation between backplane logic and field outputs |
| Certifications | ATEX, IECEx, FM, CSA (for Class I, Division 1; Zone 0/1) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Physical Dimensions | Standard GE 90-30 module size (~241 mm H × 25.4 mm W × 229 mm D) |
| Installation Method | Inserted into GE 90-30 I/O baseplate (e.g., IC693CHS391) |
Main Features and Advantages
Integrated intrinsic safety eliminates external barriers:
The GE 8202-HO-IS embeds certified safety barrier circuitry within the module itself, removing the need for separate Zener or isolating barriers in the control panel. This not only saves significant cabinet space but also reduces termination points, potential failure modes, and maintenance overhead—making it ideal for offshore platforms, chemical reactors, and paint spray booths where panel real estate is at a premium.
The GE 8202-HO-IS embeds certified safety barrier circuitry within the module itself, removing the need for separate Zener or isolating barriers in the control panel. This not only saves significant cabinet space but also reduces termination points, potential failure modes, and maintenance overhead—making it ideal for offshore platforms, chemical reactors, and paint spray booths where panel real estate is at a premium.
High-density, reliable switching for critical loads:
With 16 independently isolated relay outputs in a single slot, the GE 8202-HO-IS delivers exceptional I/O density for safety applications. Each dry contact can directly switch low-power field devices in hazardous zones, such as emergency shutdown valves or local alarms, without intermediate relays. The use of mechanical relays (rather than solid-state switches) ensures fail-safe behavior and compatibility with a wide range of load types, including inductive and capacitive circuits.
With 16 independently isolated relay outputs in a single slot, the GE 8202-HO-IS delivers exceptional I/O density for safety applications. Each dry contact can directly switch low-power field devices in hazardous zones, such as emergency shutdown valves or local alarms, without intermediate relays. The use of mechanical relays (rather than solid-state switches) ensures fail-safe behavior and compatibility with a wide range of load types, including inductive and capacitive circuits.
Full compatibility with GE 90-30 ecosystem:
The GE 8202-HO-IS requires no special configuration software or protocol converters—it appears in the PLC logic as a standard digital output rack. Diagnostics such as open-circuit detection or relay coil faults are reported through the 90-30 system status words, enabling predictive maintenance. Its seamless integration preserves engineering efficiency while upgrading safety performance.
The GE 8202-HO-IS requires no special configuration software or protocol converters—it appears in the PLC logic as a standard digital output rack. Diagnostics such as open-circuit detection or relay coil faults are reported through the 90-30 system status words, enabling predictive maintenance. Its seamless integration preserves engineering efficiency while upgrading safety performance.
Global compliance for international deployments:
Certified to ATEX, IECEx, FM, and CSA standards, the GE 8202-HO-IS is approved for use in virtually all global hazardous area classifications. This makes it a preferred choice for multinational EPC contractors and operators managing standardized control architectures across refineries, LNG terminals, and pharmaceutical plants worldwide.
Certified to ATEX, IECEx, FM, and CSA standards, the GE 8202-HO-IS is approved for use in virtually all global hazardous area classifications. This makes it a preferred choice for multinational EPC contractors and operators managing standardized control architectures across refineries, LNG terminals, and pharmaceutical plants worldwide.
Application Field
The GE 8202-HO-IS is extensively deployed in process industries where discrete control signals must be delivered safely into explosive atmospheres. In oil and gas upstream operations—such as offshore drilling rigs and onshore well pads—the module directly actuates subsurface safety valve (SSSV) control solenoids and fire/gas shutdown valves, ensuring rapid, reliable response during emergencies without risking ignition from electrical sparks. Within petrochemical plants, the GE 8202-HO-IS controls purge valves, vent actuators, and agitator interlocks inside classified reactor buildings, leveraging its intrinsic safety design to meet stringent PSM (Process Safety Management) requirements.
In the pharmaceutical and fine chemical sectors, the GE 8202-HO-IS enables automated batch sequencing in solvent-handling areas classified as Zone 1, where even minor electrical faults could trigger catastrophic events. Similarly, in grain elevators and coal handling facilities—environments prone to combustible dust—the module’s certifications extend to Class II, Division 1 applications, controlling dust collector dampers and explosion suppression systems. Because it integrates safety at the I/O level rather than relying on external hardware, the GE 8202-HO-IS simplifies system validation, reduces SIL verification effort, and accelerates commissioning—making it a cornerstone of modern, code-compliant control strategies in high-risk industrial settings.
Related Products
- GE 8201-HI-IS: 16-channel intrinsically safe digital input module, complementary to the GE 8202-HO-IS for full IS I/O coverage.
- GE IC693MDL754: Standard (non-IS) 16-channel relay output module for general-purpose applications.
- GE IC693CHS391: 10-slot I/O baseplate compatible with the GE 8202-HO-IS for 90-30 systems.
- GE IC693CPU374: High-performance 90-30 CPU commonly used in safety-critical applications with IS I/O.
- Emerson VersaMax Nano IS Modules: Modern alternative for smaller-scale intrinsically safe applications.
- GE 8202-HO: Non-intrinsically safe version of the same relay output module (for non-hazardous areas).
- MTL Instruments 504x Series: External IS barriers (used when GE 8202-HO-IS is not available or for mixed I/O strategies).
Installation and Maintenance
Pre-installation preparation: Before installing the GE 8202-HO-IS, verify that the target 90-30 baseplate supports high-density output modules and that the system power supply can accommodate the inrush current of 16 relay coils. Ensure all field wiring complies with intrinsic safety segregation rules—IS cables must be routed separately from non-IS conductors in dedicated conduits or trays. Use only approved glands and terminations rated for hazardous locations, and confirm that connected field devices fall within the module’s certified load parameters (voltage, current, capacitance, inductance).
Maintenance recommendations: The GE 8202-HO-IS contains electromechanical relays with finite switching life; monitor cycle counts via PLC logic if possible. Periodically inspect terminal blocks for corrosion or loosening, especially in humid or corrosive environments. Although the module includes self-diagnostics for coil failures, visual inspection of the front-panel LED indicators (typically one per group of channels) helps identify de-energized outputs. Replacement should occur during planned outages; the GE 8202-HO-IS retains no configuration, so swapping units is straightforward. Always keep spare GE 8202-HO-IS modules on hand for critical safety functions to ensure rapid restoration of protective systems.
