Allen-Bradley 1797-PS1E FLEX Ex Quad-Channel IS Power Supply Module

Overview

The Allen-Bradley 1797-PS1E is a quad-channel intrinsically safe (IS) power supply module from Rockwell Automation’s FLEX Ex series. This power supply module converts 85–253 V AC input into four galvanically isolated, IS-limited DC outputs, each delivering 8.5 W of output power. It is designed for use in hazardous environments, making it ideal for Zone 1, Zone 2, and Zone 22 classified areas.

Key Features

• Input Voltage Range: 85–253 V AC (47–63 Hz) for wide compatibility with industrial power systems.

• Output Power: Four IS-limited outputs, each providing 8.5 W with output voltage <9.5 V DC.

• Protection Rating: IP65 rated, ensuring protection against dust and water ingress.

• Flameproof Enclosure: Designed with EEx d (flameproof) and EEx e (increased safety) terminals for maximum safety in explosive environments.

• Temperature Range: Operates in extreme temperatures from –20 to +70 °C and stores safely from –40 to +85 °C.

• Compact Design: Dimensions of 140 × 174 × 280 mm with a weight of 7.7 kg, ideal for tight installation spaces.

Technical Specifications

Functional Highlights

• Galvanic Isolation: Provides isolation between hazardous AC input and IS-rated outputs for added safety.

• Modular FLEX Ex I/O Architecture: Supports easy integration with other FLEX Ex modules, including analog/digital I/O, adapters, and fiber hubs.

• EMC Support: Features ferrite bead support to improve IS output wiring EMC performance, ensuring stable operation in industrial environments.

• Hazardous Area Compatibility: Ideal for Zone 1, Zone 2, and Zone 22 hazardous locations, ensuring safe operations in explosive atmospheres.

Cable Gland Specifications

• Input Cable Gland: M20 × 1.5 (cable diameter: 6–12 mm)

• Output Cable Gland: M16 × 1.5 (cable diameter: 4–8 mm)

Applications

The 1797-PS1E is designed for use in critical industrial control and automation applications, particularly in hazardous environments such as:

• Oil & Gas Industry

• Petrochemical Plants

• Mining Operations

• Chemical Manufacturing

• Marine and Offshore Platforms

Its modular design makes it suitable for FLEX Ex I/O systems, enhancing overall system reliability and safety in challenging environments.

FAQs

Q1: Is the 1797-PS1E module new and original?
A1: Yes, the 1797-PS1E is brand new, original, and sourced directly from the Allen-Bradley factory.

Q2: How quickly will my order for the 1797-PS1E ship?
A2: We typically ship the 1797-PS1E within 3 days to 2 weeks, depending on order size, via logistics partners like DHL.

Q3: What is the maximum operating temperature for the 1797-PS1E module?
A3: The 1797-PS1E can operate in temperatures ranging from –20 to +70 °C.

Q4: Can the 1797-PS1E be used in Zone 1, Zone 2, or Zone 22 hazardous areas?
A4: Yes, the 1797-PS1E is certified for use in Zone 1, Zone 2, and Zone 22 hazardous locations.

Q5: How does the 1797-PS1E module ensure safety in hazardous environments?
A5: The 1797-PS1E is built with a flameproof (EEx d) and increased safety (EEx e) enclosure, offering maximum protection in explosive environments.