Brand:Allen Bradley PLC Item No.:1797-PS2E2 Product Origin:USA Product Dimensions:280 x 174 x 140 mm Product Weight:7.7 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley 1797-PS2E2 FLEX Ex Power Supply is an intrinsically safe power distribution module designed for hazardous industrial environments. It converts 24V DC input into four independently limited output channels, ensuring safe energy delivery to FLEX Ex I/O systems. With flameproof construction and galvanic isolation, it is engineered for critical process applications where electrical safety and system reliability are essential.
Technical Specifications
Category
Specification
Product Series
FLEX Ex I/O
Model
1797-PS2E2
Device Type
Intrinsically Safe Power Supply
Input Voltage Range
18–32 V DC
Input Power
55 W
Output Channels
4 independent IS-limited channels
Output Power
4 × 8.5 W
Output Voltage
< 9.5 V DC
Isolation
Galvanically isolated outputs
Protection Type
Flameproof enclosure (Ex d / Ex e system design)
Redundancy
Dual input power feeds supported
Operating Temperature
-20 to +70 °C
Storage Temperature
-40 to +85 °C
Dimensions
280 × 174 × 140 mm
Weight
7.7 kg
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Applications
• Intrinsically safe (IS) field device power distribution
Used to supply safe, energy-limited power to field instruments such as sensors, valves, and transmitters in hazardous environments.
• Oil & gas hazardous area automation systems
Deployed in Zone 1 / Zone 2 installations where explosion-proof and flameproof electrical design is required.
• Process industry remote I/O power backbone
Provides stable power for FLEX Ex I/O modules in distributed control architectures across large plants.
• Chemical and petrochemical plant instrumentation systems
Ensures safe electrical energy delivery to instrumentation loops in high-risk processing environments.
• Offshore and energy production facilities
Supports ruggedized automation systems operating under strict safety certification requirements.
• Safety-critical industrial control systems
Used where galvanic isolation and intrinsically safe power limitation are mandatory.
Key Advantages
• Intrinsically safe quad-channel power output
Delivers four independent IS-limited channels for distributed FLEX Ex I/O systems.
• Flameproof industrial enclosure design
Built for hazardous environments with high ingress protection and explosion-proof structure.
• Dual input redundancy support
Improves system reliability by allowing redundant 24V DC power feeds.
• Galvanic isolation between input and output
Protects field devices from electrical faults and hazardous energy transfer.
• Stable energy limitation per channel
Each output channel is precisely limited to maintain compliance with IS standards.
• Designed for extreme industrial environments
Supports long-term operation under vibration, temperature variation, and EMI exposure.
Technical FAQs
1. What is the main function of the 1797-PS2E2?
It provides intrinsically safe, energy-limited power for FLEX Ex I/O systems.
2. How many output channels does it have?
It provides 4 independent IS-limited output channels.
3. What is the input voltage range?
It operates on 18–32V DC input power.
4. Is it suitable for hazardous areas?
Yes, it is designed for Zone 1, Zone 2, and Zone 22 environments.
5. Does it support redundant power input?
Yes, it supports dual power feed connections for redundancy.
6. What type of protection does it provide?
It includes flameproof enclosure and intrinsically safe output limitation.
7. What is the output power per channel?
Each channel delivers approximately 8.5 W of IS-limited power.
8. Are outputs isolated from the input?
Yes, all outputs are galvanically isolated from the input supply.
9. What devices can it power?
It powers FLEX Ex I/O modules, sensors, actuators, and transmitters.
10. Is it still actively produced?
It is a legacy product and has been discontinued in many regions.
