Description

Emerson PK0750R SIS System Power Supply Module

Technical Specifications

• Product Model: PK0750R
• Brand: Emerson
• Warranty: One Year
• Input Voltage: 100‑240 V AC universal mains, 47‑63 Hz
• Operating Temperature: 0 °C ~ +60 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Over‑current fault shutdown <10 ms
• Protection Class: IP20 hot‑swap rack‑mount power‑supply unit
• Accuracy Class: SIL‑3 safety‑grade power‑conversion
• Output Frequency: Not applicable
• Rated Current: Output 24 V DC / 7.5 A continuous
• Output: Regulated isolated 24 V DC for DeltaV‑SIS rack backplane
• Redundancy: Supports parallel redundant hot‑standby configuration
• Built‑in Protection: Over‑voltage, over‑current, short‑circuit, over‑temperature shutdown
• Status Indicators: Power OK, Fault alarm LED; dry‑contact fault relay output
• System Compatibility: Emerson DeltaV‑SIS safety instrumented racks
• Certifications: CE, UL/cUL, IEC‑61508 SIL‑3 supporting hardware
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 2.1 kg
• Dimensions: 130 × 260 × 95 mm
• 

Product Overview

PK0750R is hot‑swap AC‑to‑DC power supply unit for Emerson DeltaV‑SIS safety racks. It converts universal AC mains into stabilized 24 V DC power feeding SIS CPU, communication boards and safety I/O modules. Parallel redundant deployment eliminates single‑point power failure for high‑integrity safety loops. Hardware protective functions prevent downstream module damage under overload and short‑circuit conditions. Front‑panel LED and relay‑contact fault feedback provide power‑supply health status to plant host monitoring systems. OEM production discontinued; available as refurbished / new‑old‑stock spare‑parts for process‑plant SIS‑system overhaul projects.

Application Notes

‑ Exclusively for DeltaV‑SIS rack chassis; do not apply for standard DeltaV DCS racks. ‑ Hot‑swap replacement permitted only for redundant‑power configured racks. ‑ Follow official Emerson parallel‑wiring instructions for redundant power‑supply setup. ‑ Typical deployment: refineries, offshore platforms, chemical‑plants for ESD safety‑system spare‑part stocking.