Allen-Bradley 1797-PS1E

Allen-Bradley 1797-PS1E | Intrinsically Safe Power Supply for Hazardous Environments

Overview

The Allen-Bradley 1797-PS1E is a FLEX Ex power supply designed to deliver reliable, intrinsically safe power to I/O modules in hazardous locations. With four independent 8.5W outputs and a wide input voltage range, it ensures safe and efficient operation in Zone 1 and Zone 22 classified areas.

Key Features

• Input Voltage: 85–253V AC, 47–63 Hz

• Output Power: 4 channels, each providing 8.5W

• Output Voltage: <9.5V DC per channel

• Output Current: <1 A per channel

• Isolation: Galvanic isolation between input and outputs

• Enclosure: Flameproof IP65-rated housing

• Mounting: Wall or structural mounting with M20 and M16 cable glands

• Certifications: CE, UL, cULus, ATEX, IECEx

• Ambient Operating Temperature: -20°C to 70°C (-4°F to 158°F)

Technical Specifications

• Catalog Number: 1797-PS1E

• Input Current: 0.9 A

• Power Consumption: 55 W

• Power Dissipation: 21 W

• Thermal Dissipation: 71.67 BTU/hr

• Dimensions (HxWxD): 140 x 174 x 280 mm (5.51 x 6.85 x 11.0 in)

• Weight: Approximately 7.7 kg (17 lbs)

• Protection Class: IP65 / NEMA 7B

• Output Cable Resistance: <0.1 Ω

• Conductor Wire Size: Up to 4 mm² (12 AWG), rated for 100°C or higher

Applications

• Powering intrinsically safe FLEX Ex I/O modules

• Hazardous area installations in chemical, oil & gas, and pharmaceutical industries

• Distributed control systems requiring safe power distribution in explosive atmospheres

Why Choose the 1797-PS1E?

• Intrinsic Safety: Provides safe power to I/O modules in hazardous zones

• Robust Design: Flameproof enclosure ensures durability in harsh environments

• Flexible Integration: Supports daisy-chaining for efficient system expansion

• Compliance: Meets international standards for hazardous location equipment

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Available and ready to ship globally.