Endress+Hauser 2 Channel Zener Barrier, ATEX

Subtotal (1 unit)*

£206.28

(exc. VAT)

£247.54

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 04 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£206.28

*price indicative

RS Stock No.:
316-256
Mfr. Part No.:
RN22-8L2BPA
Brand:
Endress+Hauser
Find similar products by selecting one or more attributes.
Select all

Brand

Endress+Hauser

Number of Channels

2

Product Type

Zener Barrier

Barrier Type

Zener Barrier

Mount Type

DIN Rail

Hazardous Area Certification

ATEX

Terminal Type

Plug-In

Safety Current Resistance

500Ω

IP Rating

IP20

Maximum Safety Current

400mA

Minimum Operating Temperature

-40°C

Maximum Safety Voltage

24V

Maximum Operating Temperature

60°C

Standards/Approvals

RoHS

Endress+Hauser 2 Channel Zener Barrier


Intrinsically safe active barrier that provides power and safety to analog instrument loops and SIL systems, establishing a reliable signal link between field devices and process control level.

The RN22 is a 1- or 2-channel active barrier, power supply or signal doubler for safe separation of 4 to 20 mA standard signal circuits. The device safely powers analog instrument loops and safety instrumented systems up to SIL 2, SC 3 (according to IEC 61508). The HART® transparent interface device establishes a reliable signal link between field devices and process control. It interfaces with 2- or 4-wire instruments in Zone 2 hazardous areas and provides a second, galvanically isolated signal output acc. to NAMUR NE 175. This opens a second channel for the process optimization domain without affecting the traditional automation system.

Connection lugs integrated on front for HART communicators

Simple and quick wiring with plug in terminals

Features & Benefits


Active barrier for safe separation of standard signal circuits

Compact housing

Quick and easy wiring

Intrinsic safety for operation in hazardous areas (Zone 2)

For safety-oriented applications up to SIL 2 (SC 3) in accordance with IEC61508 (optional)

Related links