Switching power supply Single group rail type

About the Switching power supply Single group rail type

The Switching power supply Single group rail type is part of the ELEHPD DR Series range. Features: 1) High efficiency, low operation temperature 2) Can be installed on DIN Rail 3) 100% full load burn-in test ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Full catalogue description: 45W switching power supply 12v 15v 24v Single group rail type

Typical applications

Motor control centres and pump or fan starters
Machine building, conveyors, packaging and CNC equipment
HVAC control panels and building automation
Water treatment, irrigation and pumping stations
Panel retrofits replacing electromechanical control gear

How to specify the right DR Series

Size the contact rating for the inductive load, not just the resistive current (AC-3 duty for motors)
Check the coil voltage and frequency available in the panel: 24 V DC, 110 V, 230 V or 400 V AC
Confirm the auxiliary contact count needed for the control and indication circuit
Match the enclosure rating to the environment (IP20 inside a panel, IP65 on the machine)

Specifications

45W switching power supply 12v 15v 24v Single group rail type

Features:
1) High efficiency, low operation temperature
2) Can be installed on DIN Rail
3) 100% full load burn-in test

MODEL	DR-45-5	DR-45-12	DR-45-15	DR-45-24
OUTPUT	DC VOLTAGE	5V	12V	15V	24V
RATED CURRENT	5A	3.5A	2.8A	2A
RATED POWER	25W	42W	42W	48W
RIPPLE&NOISE	100mVp-p	200mVp-p	240mVp-p	480mVp-p
VOLTAGE ADJ.RANGE	4.75-5.5V	10.8-13.2V	13.5-16.5V	21.6-26.4V
VOLTAGE TOLERANCE	±2.0%	±1.0%	±1.0%	±1.0%
LINE REGULATION	±0.5%	±0.5%	±0.5%	±0.5%
LOAD REGULATION	±1.0%	±0.5%	±0.5%	±0.5%
SETUP,RISE TIME	100ms,30ms/230VAC 100ms,30ms/115VAC at full load
HOLD UP TIME(TYP.)	90ms/230VAC 12ms/115VAC at full load
INPUT	VOLTAGE RANGE	85-264VAC 120-370VDC
FREQUENCY RANGE	47-63HZ
EFFICIENCY(Typ.)	72%	77%	77%	80%
AC CURRENT(Typ.)	1.5A/115VAC 0.75A/230VAC
INRUSH CURRENT	COLD START 30A/115VAC 60A/230VAC
PROTECTION	OVERLOAD	105-150% RATED OUTPUT POWER
Protection type:Hiccup mode,recovers automatically after fault condition
OVER VOLTAGE	5.75V-6.75V	13.8V-16.2V	17.2V-20.25V	27.6V-32.4V
Protection type:Hiccup mode,recovers automatically after fault condition
ENVIRONMENT	WORKING TEMP	-10~+60°C
WORKING HUMIDITY	20-90%RH non-condesing
STORAGE TEMP,HUMIDITY	-20~+85°C,10-95%RH
TEMP.COEFFICIENT	±0.03%°C(0-50°C)
VIBRATION	10-500HZ
SAFETY&EMC	SAFETY STANDARD	CE RoHS
WITHSTAND VOLTAGE	I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC 1minute
ISOLATION RESISTANCE	I/P-O/P,I/P-FG,O/P-FG:100M Ohms/500VDC/25°C/70%RH
EMI CONDUCTION&RADIATION	Design refer to GB4943,UL60950,EN60950
EMC STANDARD	Design refer to GB9254,EN55022 Class A
DIMENSION	L93W78H67mm
PACKING	0.31kg,48pcs/16.1kg

Frequently asked questions about the Switching power supply Single group rail type

What is the difference between a contactor and a relay?

A contactor is built for switching power circuits repeatedly at high current, often with motor duty ratings (AC-3) and arc-suppressing chambers. A relay switches control signals at low current. In practice: contactor for the motor, relay in the control circuit that drives the contactor coil.

How do I calculate the correct contactor size for a motor?

Use the motor's full-load current, apply the AC-3 rating for the operating voltage, and allow for the number of starts per hour. As a rule of thumb, the contactor's AC-3 rating should be at least equal to the motor FLC, then step up one frame if the duty is heavy.

Do you supply the coil voltage I need?

Coil voltages are specified per order. Send the model number, coil voltage and frequency you require and we will confirm availability and lead time.

Are auxiliary contacts included?

Base models come with the standard auxiliary contact configuration for that frame. Add-on auxiliary blocks and mechanical interlocks can be quoted with the contactor.