PR Electronics 5420B - Ex Power Supply

Provides a voltage supply with a safety barrier for equipment installed in hazardous areas.
Supplies voltage and ensures fail-safe detection of active current loops from 2-wire transmitters located in hazardous areas.

Technical Specifications

PR Electronics PR5420B includes a relay with change-over contacts located in the safe area. The relay remains ON when the loop current is within defined limits.
Both supply and outputs are floating and galvanically isolated.

Mounting/Installation

Can be mounted vertically or horizontally on a DIN rail, accommodating up to 84 channels per meter.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature	-20°C to +60°C
Calibration temperature	20…28°C
Relative humidity	< 95% RH (non-cond.)
Protection degree	IP20
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD)	109 x 23.5 x 130 mm
Weight approx.	215 g
DIN rail type	DIN 46277
Wire size	1 x 2.5 mm2 stranded wire
Screw terminal torque	0.5 Nm
COMMON SPECIFICATIONS
Supply
Supply voltage, universal	21.6…253 VAC, 50…60 Hz or 19.2…300 VDC
Max. required power	≤ 4 W (2 channels)
Internal power dissipation	≤ 2 W (2 channels)
Fuse	400 mA SB / 250 VAC
Isolation voltage
Isolation voltage, test / working	3.75 kVAC / 250 VAC
PELV/SELV	IEC 61140
EMC immunity influence	< ±0.5%
Extended EMC immunity: NAMUR NE21, A criterion, burst	< ±1%
OUTPUT SPECIFICATIONS
Relay output
Max. voltage	250 VRMS
Max. current	2 ARMS
Max. AC power	100 VA
Max. load at 24 VDC	1A
Output voltage	> 18 VDC at 20 mA
Output current	28 mA per channel (max.)
Relay outputs: On within limit	> 3.8…< 20.5 mA
OBSERVED AUTHORITY REQUIREMENTS
EMC	2014/30/EU
LVD	2014/35/EU
EAC	TR-CU 020/2011
APPROVALS
ATEX	DEMKO 99ATEX126256, II (1) GD [EEx ia] IIC
EAC Ex	RU C-DK.HA65.B.00355/19