Emerson SS4301T02 Intrinsically Safe Digital Output CHARM Module
Emerson SS4301T02 Intrinsically Safe Digital Output CHARM Module
Manufacturer: Emerson
Product No.: SS4301T02
Condition:1000 in stock
Product Type: IS DO 24 VDC Low-Side 100 mA CHARM
Product Origin: 6954789078901
Payment: T/T, Western Union
Weight: 100g
Shipping port: Xiamen
Warranty: 12 months
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Emerson SS4301T02 Intrinsically Safe Digital Output CHARM Module
The Emerson SS4301T02 represents a breakthrough in hazardous area control technology, delivering intrinsically safe 24 VDC digital output capability for DeltaV S-series CHARM (CHARacterization Module) I/O systems. Engineered for Zone 0/Division 1 explosive atmospheres, this low-side switching module enables direct control of field devices in the most hazardous industrial environments without requiring external safety barriers—reducing installation costs, simplifying wiring, and improving system reliability.
Understanding Intrinsic Safety in Process Control
Intrinsic safety (IS) is the gold standard for electrical equipment in explosive atmospheres. Unlike explosion-proof enclosures that contain explosions, intrinsically safe devices prevent ignition by limiting electrical energy to levels incapable of causing combustion—even under fault conditions. The SS4301T02 achieves this through precision current limiting, voltage clamping, and energy storage restrictions certified to IEC 60079-11 and ATEX/IECEx standards.
Why Intrinsic Safety Matters: In oil & gas production, chemical processing, pharmaceutical manufacturing, and grain handling facilities, flammable gases, vapors, and combustible dusts create explosive atmospheres. Traditional control systems require expensive safety barriers or purged enclosures to prevent ignition. The SS4301T02's intrinsically safe design eliminates these barriers, enabling direct field device connection while maintaining the highest safety integrity level (SIL 3 capable).
Technical Specifications
| Output Type | Intrinsically Safe 24 VDC Low-Side (Sinking) |
| Output Channels | 8 independent IS digital outputs |
| Output Current | 100 mA maximum per channel |
| Output Voltage | 24 VDC nominal (18-30 VDC range) |
| Switching Type | Low-side sinking (switches ground path) |
| Hazardous Area Rating | ATEX/IECEx Zone 0, NEC Class I Div 1 Groups A-D |
| Entity Parameters | Uo=28V, Io=132mA, Po=0.92W, Co=0.1µF, Lo=0.1mH |
| Temperature Code | T4 (135°C maximum surface temperature) |
| Response Time | 10 ms typical on/off transition |
| Isolation | 1500 VAC channel-to-bus galvanic isolation |
| Diagnostic LEDs | Per-channel status indicators (8 LEDs) |
| CHARM Interface | DeltaV S-series CHARM carrier compatible |
| Operating Temperature | -40°C to +70°C ambient |
| Certifications | ATEX, IECEx, FM, CSA, SIL 3 capable per IEC 61508 |
Hazardous Area Applications
Offshore Oil & Gas Production: Control intrinsically safe solenoid valves in Zone 0 wellhead areas, subsea manifolds, and process separators where explosive hydrocarbon atmospheres are continuously present. The SS4301T02's 100mA output capacity drives pneumatic valve actuators, sample system isolation, and emergency shutdown devices without external barriers.
Chemical Reactor Control: Interface with IS-rated agitator motors, heating element contactors, and material addition valves inside Zone 0 reactor vessels containing flammable solvents and intermediates. Direct IS output eliminates the need for barrier panels, reducing cabinet space by 60% and simplifying maintenance.
Pharmaceutical Solvent Recovery: Operate IS solenoid valves controlling solvent vapor recovery systems, distillation column reflux, and vacuum pump isolation in Zone 0 classified areas. Compliance with FDA 21 CFR Part 11 through DeltaV batch execution and audit trail integration.
Grain Elevator Dust Control: Control IS-rated dust suppression nozzles, bin level alarms, and conveyor interlocks in Zone 20 combustible dust environments. The module's T4 temperature code ensures surface temperatures remain below grain dust ignition thresholds.
Low-Side Switching Architecture
The SS4301T02 employs low-side (sinking) switching topology, where each output channel switches the ground return path to field devices. This architecture offers critical advantages in intrinsically safe applications:
Common Positive Bus: All field devices share a common positive 24 VDC supply from an intrinsically safe power source, simplifying wiring and reducing cable count by 50% compared to high-side switching designs.
Fault Detection: Open-circuit and short-circuit diagnostics monitor load current and detect wiring faults, broken solenoid coils, and ground faults before they compromise safety or process integrity.
Energy Limitation: Precision current limiting circuits restrict output current to 100 mA maximum, ensuring total circuit energy remains below minimum ignition energy (MIE) for Group IIC gases (20 µJ) even under multiple fault conditions.
CHARM I/O System Integration
The SS4301T02 integrates with DeltaV S-series CHARM carriers (KL4210X1, KL4220X1), providing hot-swappable module replacement without system shutdown. CHARM architecture enables flexible I/O configuration with mixed analog, digital, and specialty modules on a single carrier, optimizing cabinet density and reducing installation costs.
Configuration via DeltaV Explorer utilizes pre-built IS function blocks with automatic entity parameter verification. The system validates field device parameters (Co, Lo) against module capabilities, preventing unsafe configurations that could exceed intrinsic safety limits.
Certification and Compliance
Factory-certified to international intrinsic safety standards including ATEX Directive 2014/34/EU, IECEx Scheme, FM 3610, and CSA C22.2 No. 157. Each module ships with entity parameter documentation, installation drawings, and hazardous area wiring guidelines for rapid certification approval.
SIL 3 capability per IEC 61508/61511 enables deployment in safety instrumented systems (SIS) for emergency shutdown (ESD), fire & gas detection, and high-integrity pressure protection systems (HIPPS). Systematic capability (SC) rating of 3 supports SIL 3 applications in 1oo1 architectures.
Installation Best Practices
Wiring Requirements: Use blue-sheathed IS cable (IEC 60079-14) with minimum 0.5mm² conductors. Maintain 50mm separation from non-IS wiring or install physical barriers. Terminate IS cables in dedicated terminal blocks marked with blue labels.
Grounding: Connect CHARM carrier chassis ground to dedicated IS ground bus using minimum 4mm² wire. Maintain <1Ω resistance to main facility ground for optimal noise immunity and safety compliance.
Entity Parameter Verification: Calculate total field device capacitance (Co) and inductance (Lo) including cable parameters. Ensure Co < 0.1µF and Lo < 0.1mH to maintain intrinsic safety certification. Use cable capacitance of 200 pF/m and inductance of 1 µH/m for calculations.
Related Intrinsically Safe Products
| Product Model | Description | Product Link |
|---|---|---|
| SE4302T01 | DO 24 VDC High-Side CHARM (Non-IS) | View Product |
| SE4302T02 | DO 24 VDC Isolated CHARM Module | View Product |
| KJ4110X1-EB1 | DeltaV IS Extender for Hazardous Areas | View Product |
Quality Assurance & Support
Factory-tested to IEC 60079-11 intrinsic safety standards with full entity parameter verification and environmental stress screening. Ships with ATEX/IECEx certificates, entity parameter documentation, and hazardous area installation guidelines. Backed by 18-month warranty covering manufacturing defects and certification compliance.
Global technical support provides hazardous area classification assistance, entity parameter calculations, and certification documentation for regulatory approval. Replacement modules ship pre-certified with matching entity parameters for minimal downtime during emergency repairs.
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191
Product Description
Emerson SS4301T02 Intrinsically Safe Digital Output CHARM Module
The Emerson SS4301T02 represents a breakthrough in hazardous area control technology, delivering intrinsically safe 24 VDC digital output capability for DeltaV S-series CHARM (CHARacterization Module) I/O systems. Engineered for Zone 0/Division 1 explosive atmospheres, this low-side switching module enables direct control of field devices in the most hazardous industrial environments without requiring external safety barriers—reducing installation costs, simplifying wiring, and improving system reliability.
Understanding Intrinsic Safety in Process Control
Intrinsic safety (IS) is the gold standard for electrical equipment in explosive atmospheres. Unlike explosion-proof enclosures that contain explosions, intrinsically safe devices prevent ignition by limiting electrical energy to levels incapable of causing combustion—even under fault conditions. The SS4301T02 achieves this through precision current limiting, voltage clamping, and energy storage restrictions certified to IEC 60079-11 and ATEX/IECEx standards.
Why Intrinsic Safety Matters: In oil & gas production, chemical processing, pharmaceutical manufacturing, and grain handling facilities, flammable gases, vapors, and combustible dusts create explosive atmospheres. Traditional control systems require expensive safety barriers or purged enclosures to prevent ignition. The SS4301T02's intrinsically safe design eliminates these barriers, enabling direct field device connection while maintaining the highest safety integrity level (SIL 3 capable).
Technical Specifications
| Output Type | Intrinsically Safe 24 VDC Low-Side (Sinking) |
| Output Channels | 8 independent IS digital outputs |
| Output Current | 100 mA maximum per channel |
| Output Voltage | 24 VDC nominal (18-30 VDC range) |
| Switching Type | Low-side sinking (switches ground path) |
| Hazardous Area Rating | ATEX/IECEx Zone 0, NEC Class I Div 1 Groups A-D |
| Entity Parameters | Uo=28V, Io=132mA, Po=0.92W, Co=0.1µF, Lo=0.1mH |
| Temperature Code | T4 (135°C maximum surface temperature) |
| Response Time | 10 ms typical on/off transition |
| Isolation | 1500 VAC channel-to-bus galvanic isolation |
| Diagnostic LEDs | Per-channel status indicators (8 LEDs) |
| CHARM Interface | DeltaV S-series CHARM carrier compatible |
| Operating Temperature | -40°C to +70°C ambient |
| Certifications | ATEX, IECEx, FM, CSA, SIL 3 capable per IEC 61508 |
Hazardous Area Applications
Offshore Oil & Gas Production: Control intrinsically safe solenoid valves in Zone 0 wellhead areas, subsea manifolds, and process separators where explosive hydrocarbon atmospheres are continuously present. The SS4301T02's 100mA output capacity drives pneumatic valve actuators, sample system isolation, and emergency shutdown devices without external barriers.
Chemical Reactor Control: Interface with IS-rated agitator motors, heating element contactors, and material addition valves inside Zone 0 reactor vessels containing flammable solvents and intermediates. Direct IS output eliminates the need for barrier panels, reducing cabinet space by 60% and simplifying maintenance.
Pharmaceutical Solvent Recovery: Operate IS solenoid valves controlling solvent vapor recovery systems, distillation column reflux, and vacuum pump isolation in Zone 0 classified areas. Compliance with FDA 21 CFR Part 11 through DeltaV batch execution and audit trail integration.
Grain Elevator Dust Control: Control IS-rated dust suppression nozzles, bin level alarms, and conveyor interlocks in Zone 20 combustible dust environments. The module's T4 temperature code ensures surface temperatures remain below grain dust ignition thresholds.
Low-Side Switching Architecture
The SS4301T02 employs low-side (sinking) switching topology, where each output channel switches the ground return path to field devices. This architecture offers critical advantages in intrinsically safe applications:
Common Positive Bus: All field devices share a common positive 24 VDC supply from an intrinsically safe power source, simplifying wiring and reducing cable count by 50% compared to high-side switching designs.
Fault Detection: Open-circuit and short-circuit diagnostics monitor load current and detect wiring faults, broken solenoid coils, and ground faults before they compromise safety or process integrity.
Energy Limitation: Precision current limiting circuits restrict output current to 100 mA maximum, ensuring total circuit energy remains below minimum ignition energy (MIE) for Group IIC gases (20 µJ) even under multiple fault conditions.
CHARM I/O System Integration
The SS4301T02 integrates with DeltaV S-series CHARM carriers (KL4210X1, KL4220X1), providing hot-swappable module replacement without system shutdown. CHARM architecture enables flexible I/O configuration with mixed analog, digital, and specialty modules on a single carrier, optimizing cabinet density and reducing installation costs.
Configuration via DeltaV Explorer utilizes pre-built IS function blocks with automatic entity parameter verification. The system validates field device parameters (Co, Lo) against module capabilities, preventing unsafe configurations that could exceed intrinsic safety limits.
Certification and Compliance
Factory-certified to international intrinsic safety standards including ATEX Directive 2014/34/EU, IECEx Scheme, FM 3610, and CSA C22.2 No. 157. Each module ships with entity parameter documentation, installation drawings, and hazardous area wiring guidelines for rapid certification approval.
SIL 3 capability per IEC 61508/61511 enables deployment in safety instrumented systems (SIS) for emergency shutdown (ESD), fire & gas detection, and high-integrity pressure protection systems (HIPPS). Systematic capability (SC) rating of 3 supports SIL 3 applications in 1oo1 architectures.
Installation Best Practices
Wiring Requirements: Use blue-sheathed IS cable (IEC 60079-14) with minimum 0.5mm² conductors. Maintain 50mm separation from non-IS wiring or install physical barriers. Terminate IS cables in dedicated terminal blocks marked with blue labels.
Grounding: Connect CHARM carrier chassis ground to dedicated IS ground bus using minimum 4mm² wire. Maintain <1Ω resistance to main facility ground for optimal noise immunity and safety compliance.
Entity Parameter Verification: Calculate total field device capacitance (Co) and inductance (Lo) including cable parameters. Ensure Co < 0.1µF and Lo < 0.1mH to maintain intrinsic safety certification. Use cable capacitance of 200 pF/m and inductance of 1 µH/m for calculations.
Related Intrinsically Safe Products
| Product Model | Description | Product Link |
|---|---|---|
| SE4302T01 | DO 24 VDC High-Side CHARM (Non-IS) | View Product |
| SE4302T02 | DO 24 VDC Isolated CHARM Module | View Product |
| KJ4110X1-EB1 | DeltaV IS Extender for Hazardous Areas | View Product |
Quality Assurance & Support
Factory-tested to IEC 60079-11 intrinsic safety standards with full entity parameter verification and environmental stress screening. Ships with ATEX/IECEx certificates, entity parameter documentation, and hazardous area installation guidelines. Backed by 18-month warranty covering manufacturing defects and certification compliance.
Global technical support provides hazardous area classification assistance, entity parameter calculations, and certification documentation for regulatory approval. Replacement modules ship pre-certified with matching entity parameters for minimal downtime during emergency repairs.
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191