Switchmode Power Supply - PR Electronics 2222

The power supply is based on primary switchmode technology to achieve a high efficiency.
An internally mounted potentiometer allows for a ±5% adjustment of the output voltage.

General 24 VDC supply for equipment that requires a stabilised DC voltage.
Two units can be connected in series to achieve a plus / minus supply or a higher output voltage.
Separation of circuits in safety installations according to the PELV/SELV norm.
Galvanic isolation between the primary and the secondary voltage is achieved through the double-isolated safety transformer.

A green LED in the front of the module indicates an active primary voltage.
Input circuit protected with a thermal fuse.
DC output short circuit protection with current limiter.
Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature	-20°C to +60°C
Relative humidity	< 95% RH (non-cond.)
Protection degree	IP30
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD)	80.5 x 35.5 x 84.5 mm (D is without pins)
Weight approx.	210 g
COMMON SPECIFICATIONS
Supply
Fuse	1 A SB / 250 VAC
Max. required power	60 VA
Isolation voltage
Isolation voltage, test / working	3.75 kVAC / 250 VAC
PELV/SELV	IEC 61140
Effect of supply voltage change	< 1% (±10%)
Efficiency	≥ 80%
Thermal overload protection	100°C
Power derating	1% / °Camb. (Tamb. > 40°C)
Transient stability (10%-max. load)	< 500 mV
Temperature coefficient	0.05% / °C
EMC immunity influence	< ±0.5%
Input specifications
Supply voltage	207…253 VAC 102.4…132.2 VAC
Frequency	50…60 Hz
Output specifications
Current output
Current limit	Nom. 2.5 A (electronic)
Output voltage	24 VDC
Adjustment	±5%
Output power	48 W (max.)
Output current	2 A / 24 VDC
Load effect, (0-max. load)	< 1.5% / A
Output ripple	≤ 40 mVRMS (100 kHz)
OBSERVED AUTHORITY REQUIREMENTS
EMC	2014/30/EU
LVD	2014/35/EU
EAC	TR-CU 020/2011
EAC LVD	TR-CU 004/2011