Ex Power Supply - PR Electronics 5420B

Voltage supply with safety barrier for the supply of equipment mounted in hazardous area.
Voltage supply with failsafe detection of active current loop from 2-wire transmitters mounted in hazardous area.

PR5420B has a relay with change-over contacts available in the safe area. When the loop current is within the defined limit, the relay is ON.
Supply and outputs are floating and galvanically separated.

Mounted vertically or horizontally on a DIN rail. Up to 84 channels per meter can be mounted.

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

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