S series industry power supply 201W S-201W

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 S series industry power supply 201W S-201W

The S series industry power supply 201W S-201W is part of the ELEHPD S Series range. 201W Single Switching power supply Features: • AC input range selectable by switch • Protections:Short circuit/Over load/ Over temperature • Cooling by free air convection • 100% full load burn-in test • Compact size, light weight • Fixed switching frequency at 25KHz • Low cost • High reliability • 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.

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

201W Single Switching power supply

Features :

• AC input range selectable by switch

• Protections:Short circuit/Over load/ Over temperature

• Cooling by free air convection

• 100% full load burn-in test

• Compact size, light weight

• Fixed switching frequency at 25KHz

• Low cost

• High reliability

• 2 years warranty

Model	S-201-5	S-201-7.5	S-201-12	S-201-13.5	S-201-15	S-201-24	S-201-27	S-201-48
Output	DC Voltage	5V	7.5V	12V	13.5V	15V	24V	27V	48V
Rated Current	40A	26.5A	16.5A	14.7A	13A	8.3A	7.4A	4.2A
Current Range	0 ~ 40A	0 ~ 26.5A	0 ~ 16.5A	0 ~ 14.7A	0 ~ 13A	0 ~ 8.3A	0 ~ 7.4A	0 ~ 4.2A
Rated Power	200W	198.75W	198W	198.45W	198W	199.2W	199.8W	201.6W
Ripple & Noise (max.) Note.2	150mVp-p	150mVp-p	150mVp-p	150mVp-p	150mVp-p	150mVp-p	200mVp-p	240mVp-p
Voltage Adj. Range	4.5 ~ 5.6V	6~9V	10~13V	12 ~ 15V	13.5~18V	20~26.4V	26 ~ 32V	41 ~ 56V
Voltage Tolerance Note.3	±2.0%	±2.0%	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%
Line Regulation	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
Load Regulation	±1.0%	±1.0%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
Setup,Rise, Hold time	200ms, 100ms, 20ms at full load
Input	Voltage Range	90 ~ 132VAC / 180 ~ 264VAC by switch 254 ~ 370VDC
Frequency Range	47~63HZ
Efficiency(Typ.)	74%	79%	80%	80%	81%	83%	83%	84%
AC Current	4.5A/115VAC 2.5A/230VAC
Inrush Current (max.)	50A/115VAC 50A/230VAC
Leakage Current	<3.5mA / 240VAC
Protection	Over Load	105 ~ 135% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed
Over Voltage	5.75 ~ 6.75V	9.4 ~ 10.9V	13.8V~16.2V	15.53 ~ 18.2V	18V~21V	27.6V~32.4V	33.7 ~ 39.2V	57.6 ~ 67.2V
Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE	≥90°c (RTH3) Detect on inside ambient temperature
Protection type : Shut down o/p voltage, recovers automatically after temperature goes down
Environment	Working Temperature	-10 ~ +50°c (Refer to output load derating curve)
Working Humidity	20~90% RH Non-condensing
Storage temp.& humidity	-20~+85°C, 10~95%RH
Temp. coefficient	±0.03%/°C (0~50°C)
Vibration	10 ~ 500Hz, 2G 10min./1 cycle,60min.each along X,Y,Z axes
Safety & EMC (Note 4.)	Safety Standards	Design refer to UL1950
Withstand Voltage	I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC
EMI Conduction & Radiation	Design refer to FCC Part15 J Conduction Class A
Others	MTBF	271.9K hrs min. MIL-HDBK-217F (25 °c )
Dimension	21511550mm (LWH)
Packing	0.93Kg; 12pcs/12Kg/0.92CUFT
Note	1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°c of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance : includes set up tolerance, line regulation and load regulation.

Frequently asked questions about the S series industry power supply 201W S-201W

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.