Single output switching power supply S-100W

Q: 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.

Q: 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.

Q: 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.

Q: 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.

About the Single output switching power supply S-100W

The Single output switching power supply S-100W is part of the ELEHPD S Series range. 100w 12v 24v 48v single output switching power supply Features: • AC input range selectable by switch • Protections:Short circuit/Over load/Over voltage • Cooling by free air convection • 100% full load burn-in test • Fixed switching frequency at 83KHz • 2 years warranty 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: Mostly popular by customer 100w 12v 24v 48v single output switching power supply S-100W

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 S 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

Mostly popular by customer 100w 12v 24v 48v single output switching power supply

Features :

• AC input range selectable by switch

• Protections:Short circuit/Over load/Over voltage

• Cooling by free air convection

• 100% full load burn-in test

• Fixed switching frequency at 83KHz

• 2 years warranty

Model Specification	S-100-5	S-100-12	S-100-15	S-100-24	S-100-36	S-100-48
DC output voltage	5V	12V	15V	24V	36V	48V
Output voltage rang(Note:2)	+/-2%	+/-1%	+/-1%	+/-1%	+/-1%	+/-1%
Rated output current	40A	25.8A	23.2A	14.6A	13A	7.3A
Output current range	040A	025.8A	023.2A	014.6A	013A	07.3A
Wave and noise(Note:3)	150mVp-p	150mVp-p	150mVp-p	150mVp-p	200mVp-p	240mVp-p
Inlet stability(Note:4)	+/0.5%	+/0.5%	+/0.5%	+/0.5%	+/0.5%	+/0.5%
Load stability(Note:5)	+/1%	+/1%	+/1%	+/1%	+/1%	+/1%
DC output power	300W	348.3W	348W	351W	351W	350.4W
Efficiency	76%	79%	78%	82%	84%	83%
Adjustable range for DC voltage	6-9V	12-15V	13.5-18V	20-26.4V	34-38V	41-56V
AC input voltage range	85~132VAC/180~264VAC selectd by switch 47~63Hz; 255~370VDC
Input current	2.4A/115V 1.2A/230V
AC inrush current	Cole-start current 15A/115V 36A/230V
Leakage current	<1mA/240VAC
Overload proctection	105%~150%	150%~200%	105%~150%
Type:pulsing hiccup shutdown Reset:auto recovery
Over-voltage proctection	105%~150%	150%~200%	105%~150%
Type:pulsing hiccup shutdown Reset:auto recovery
High-temperature and protection	105%~150%	150%~200%	105%~150%
Type:pulsing hiccup shutdown Reset:auto recovery
Temperature coefficient	+/-0.03%(0~50)
Setup, rise,hold up time	200ms,100ms,30ms
Vibration	10-500Hz,,2G10min,/cycle, periodfor 60min,Each axes
Withstand voltage	Input and output interal:1.5KvAC,Input ad enclosure:1.5KvAC Output and enclosure:0.5KvAC
Isolation resistance	Input and output internal:Input and enclosure,Output and enclosure:500VDC/100MΩ
Working temperature and humidity	-10+60(Refer to output derating curve),20%90%RH
Stoerall dimension	-20+85.10%~95%RH
Overall dimension	1999838mm
Weight	0.65Kgs
Safety standards	Meet UL1012 requirement(Not apply for the mark)
EMC standaras	Meet FCC PART 15J Conduction class B

OVERALL DIMENSION

Frequently asked questions about the Single output switching power supply S-100W

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.