S-1200W Single output high walt switching power supply

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-1200W Single output high walt switching power supply

The S-1200W Single output high walt switching power supply is part of the ELEHPD S Series range. 1200W Single output high walt switching power supply 12v 24v High Efficiency, High Reliability, Low Cost AC Input Range: 90~132V/176~264VAC Selected by Switch 100% Full Load Burn-In Test Protections: Short Circuit / Over Load/Over Voltage LED Indicator For Power On Cooling By Free Air Convection Approvals: CE RoHS 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: 1200W Single output high walt switching power supply 12v 24v S-1200W

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

1200W Single output high walt switching power supply 12v 24v

High Efficiency, High Reliability, Low Cost

AC Input Range: 90~132V/176~264VAC Selected by Switch
100% Full Load Burn-In Test
Protections: Short Circuit / Over Load/Over Voltage
LED Indicator For Power On
Cooling By Free Air Convection
Approvals: CE RoHS
2 Years Warranty

MODEL			S-1200-12	S-1200-15	S-1200-24	S-1200-48
OUTPUT	DC VOLTAGE			12V	15V	24V	48V
VOLTAGE TOLERANCE			± 1%	± 1%	± 1%	± 1%
RATED CURRENT			100A	80A	50A	25A
CURRENT RANGE			0-10A	0-8A	0-5A	0-2.5A
RATED POWER	120W	120W	1200W	1200W	1200W	1200W
RIPPLE & NOISE(MAX)	80mVp-p	100mVp-p	100mVp-p	100mVp-p	100mVp-p	100mVp-p
DC VOLTAGE ADJUSTMENT RANGE	± 10%	± 10%	± 10%	± 10%	± 10%	± 10%
SETUP, RISE, HOLD UP TIME	200ms, 100ms, 20ms
INPUT	VOLTAGE RANGE	85~132/170~264VAC Selected by Switch, 47~63Hz
AC CURRENT	3.2A/115 V 1.6A/ 230 V
EFFICIENCY	78%	80%	82%	82%	84%	84%
INRUSH CURRENT	Cold start 17A/115V 35A/230V
LEAKAGE CURRENT	< 1 mA/240VAC
PROTECTION	OVERLOAD PROTECTION	135%~165% Shut down O/P voltage, re-power on to recover
OVER-VOLTAGE PROTECTION	^ ^
HIGH TEMPERATURE PROTECTON	^ ^
ENVIRONMENT	WORKING TEMP. & HUMIDITY	-10º C~+50º C; 20%~90 %RH
STORAGE TEMP. & HUMIDITY	-20º C~+85º C; 10%~95 %RH
VIBRATION	10~500Hz, 2G 10min. /1 cycle, period for 60min, each along X. Y. Z axes
SAFETY	WITHSTAND VOLTAGE	I/P-O/P: 1.5KVACI/P-FG: 1.5KVACO/P-FG: 0.5KVAC
ISOLATION RESISTANGE	I/P-O/P, I/P-FG, O/P-FG: 500VDC/100MΩ
STANDARDS	SAFETY STANDARDS	Design refer to UL1012
EMC STANDARDS	Design refer to EN55022, EN55024, EN61000
OTHERS	WEIGHT	2.5Kg
PACKING	4pcs/ 12Kg
NOTE	1. Tolerance: Includes set up tolerance, line regulation and load regulation. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire teminated with a 0.1μ f & 47μ f parallel capacitor.

Frequently asked questions about the S-1200W Single output high walt switching power supply

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.