PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1797-PS1E is a FLEX I/O Power Supply module designed for hazardous environments. It operates on an input voltage range of 85 to 253 VAC at 47 to 63 Hz. The module provides four intrinsically safe output channels delivering 8.5 W each. Input power entrance uses an increased safety configuration with galvanic isolation. The device consumes 55 W of input power and dissipates 21 W during regular operation.
This power supply features a flame-proof enclosure rated for IP65 ingress protection. It functions across an operating ambient temperature range of -20 to 70 degrees Celsius. Wire entry ports feature an M20 gland for input wiring from 6 to 12 mm diameter. Output wiring exits through an M16 gland designed for 4 to 8 mm diameter conductors. The module supports daisy chain connection when the total module power draw is below 8.5 W.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| UPC | 612598182961 |
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| Weight | 15.06 lbs (6.83 kg) |
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| Thermal Dissipation | 71.67 BTU/hr |
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| Power Dissipation | 21 W |
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| Output Power | 4 x 8.5 W |
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| Current Consumption | 0.9 A |
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| Input Frequency | 47…63 Hz |
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| Voltage Range | 85…253V AC |
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| Input Connectors | 85…253V AC, Um = 253V AC Terminals 1, 2, 4, 5 (earth symbol) |
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| Input Power | 55 W |
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| Product Description | FLEX Ex 85…253V AC In/Quad-Ex DC Out Power |
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| Input power entrance | Increased safety |
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| Output connectors | Terminals 10…17 |
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| Input power to output power isolation | Galvanic to DIN EN50020 |
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| Voltage | 9.5V |
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TECHNICAL INFORMATION
Features
- Provides four independently limited intrinsically safe output ports rated at 8.5 W each.
- Accepts wide AC input voltage spanning 85 to 253 VAC at 47 to 63 Hz.
- Enclosed in an IP65 rated flame-proof housing suitable for harsh industrial environments.
- Provides galvanic isolation between input power and output circuits according to DIN EN50020.
- Includes sealed cable entry with M20 input and M16 output glands.
TECHNICAL INFORMATION
Applications
- Zone 1 and Zone 22 hazardous location control systems.
- Power distribution for intrinsically safe FLEX Ex I/O modules.
TECHNICAL INFORMATION
Connections / Interfaces
- Input connections utilize terminals 1, 2, 4, and 5.
- Intrinsically safe output connections utilize terminals 10 through 17.
- Cable entry accepts 6 to 12 mm diameter input wires through an M20 gland.
- Cable exit accepts 4 to 8 mm diameter output wires through an M16 gland.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the unit securely using star washers and nuts to establish proper grounding continuity.
- Scrape sub-panel paint or surface coatings at grounding bolt locations prior to installation.
- Pass all power supply output wires through the ferrite bead before completing terminal wiring.
- Select power supply leads rated for 80 degrees Celsius when ambient temperatures reach 60 degrees Celsius.
- Do not deploy the unit in intrinsically safe installations if outputs contact non-intrinsically safe signals.
TECHNICAL INFORMATION
Configuration Guidelines
- Ensure total module load does not exceed 8.5 W when configuring a daisy chain setup.
- Apply electrostatic discharge warning labels to the system enclosure during commissioning.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1797 FLEX Ex series distributed I/O hardware.
TECHNICAL INFORMATION
Compliance and Certifications
- Category 3D according to Directive 94/9 EC.
- Galvanic isolation certified to DIN EN50020.
- IP65 enclosure protection rating.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1797 FLEX Ex series distributed I/O hardware.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the AC input operating range for the 1797-PS1E?
The module operates on an input voltage range of 85 to 253 VAC at 47 to 63 Hz.
How many outputs does the 1797-PS1E power supply provide?
The unit features four intrinsically safe outputs delivering up to 8.5 W per channel.
Can the 1797-PS1E power supply be installed in daisy-chain configurations?
Daisy chaining is permitted only when total module power consumption remains below 8.5 W.
What is the ingress protection level of the 1797-PS1E enclosure?
The flame-proof enclosure conforms to the IP65 environmental protection standard.
