KJ2231X1-EA1 Emerson Safety Relay for DeltaV SIS

Product Description

The Emerson KJ2231X1-EA1 SIS Relay Module supports critical safety functions within DeltaV SIS architectures and delivers dependable switching performance in demanding plants. It enables precise relay actuation for alarms, shutdown devices, and field actuators that require consistent and high-integrity control. Moreover, its rugged construction allows stable operation in environments where shock, vibration, and airborne contaminants often compromise electronic systems.

Engineers choose this module for its predictable relay behavior and seamless DeltaV SIS integration, which simplifies system validation and field commissioning. In addition, its hazardous-area approvals ensure safe operation in oil and gas facilities, chemical processing units, and other high-risk applications. The module’s compact footprint also helps integrators design space-efficient panels without sacrificing safety performance.

Technical Specifications

Model: KJ2231X1-EA1
Module Type: SIS Relay Module
System: Emerson DeltaV SIS
Input Power: 24 VDC, 70 mA
Relay Contact Ratings:

• 30 VDC at 2.5 A

• 250 VAC at 2.5 A
  Operating Temperature: –40 °C to +70 °C
  Humidity Range: 5–95% non-condensing
  Shock Resistance: 10 g, 11 ms half-sine
  Vibration: 1 mm (2–13.2 Hz), 0.7 g (13.2–150 Hz)
  Contaminant Level: ISA-S71.04 Class G3
  Certifications: ATEX, IECEx, FM, UKEX (Zone 2 / Class I Div. 2)
  Weight: 0.23 kg
  Origin: USA
  

FAQ

Q1: Is the KJ2231X1-EA1 suitable for SIL-rated systems?
Yes, it integrates directly into DeltaV SIS architectures used in SIL2 and SIL3 safety loops.

Q2: Can this module operate in extreme temperatures?
It performs reliably from –40 °C to +70 °C, making it suitable for outdoor and insulated cabinet installations.

Q3: Does it support high-current field devices?
Its relay contacts support up to 2.5 A, which is sufficient for most alarm devices, solenoids, and shutdown relays.

Q4: What certifications does the module carry?
It includes ATEX, IECEx, FM, and UKEX approvals for Zone 2 and Class I Div. 2 installations.