S-320W S series single output manufacture China

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-320W S series single output manufacture China

The S-320W S series single output manufacture China is part of the ELEHPD S Series range. 320W Single output switching power supply Features: • Universal AC input / Full range • Protections:Short circuit/Over load/Over voltage • Forced air cooling by built-in DC fan • PWM control and regulated • Built-in cooling Fan ON-OFF control • 100% full load burn-in test • Fixed switching frequency at 25KHz • Low cost • 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: S series single output manufacture China Liushi power supply S-320W

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

320W Single output switching power supply

Features :

• Universal AC input / Full range

• Protections:Short circuit/Over load/Over voltage
• Forced air cooling by built-in DC fan
• PWM control and regulated
• Built-in cooling Fan ON-OFF control
• 100% full load burn-in test
• Fixed switching frequency at 25KHz
• Low cost
• 2 years warranty

320W Single Output Switching Power Supply (SMPS) S-320
MODEL	S-320-5	S-320-12	S-320-15	S-320-24	S-320-27	S-320-48
DC VOLTAGE	5V	12V	15V	24V	27V	48V
RATED CURRENT	50A	25A	20A	12.5A	11A	6.5A
CURRENT RANGE	0 ~ 50A	0 ~ 25A	0 ~ 20A	0 ~ 12.5A	0 ~ 11A	0 ~ 6.5A
RATED POWER	250W	300W	300W	300W	297W	312W
RIPPLE & NOISE (max. )	150mVp-p	150mVp-p	150mVp-p	150mVp-p	200mVp-p	240mVp-p
VOLTAGE ADJ. RANGE	4.5 ~ 5.7V	10 ~ 13.2V	13.5 ~ 18V	20 ~ 26.4V	26 ~ 32V	41 ~ 56V
VOLTAGE TOLERANCE	± 2.0%	± 1.0%	± 1.0%	± 1.0%	± 1.0%	± 1.0%
LINE REGULATION	± 0.5%	± 0.5%	± 0.5%	± 0.5%	± 0.5%	± 0.5%
LOAD REGULATION	± 1.0%	± 0.5%	± 0.5%	± 0.5%	± 0.5%	± 0.5%
SETUP, RISE, HOLD TIME	2000ms, 20ms, 24ms at full load
VOLTAGE RANGE	88 ~ 132VAC / 176 ~ 264VAC by switch 248 ~ 370VDC
FREQUENCY RANGE	47 ~ 63Hz
EFFICIENCY (Typ. )	77%	82%	84%	86%	86%	87%
AC CURRENT	6A/115VAC 3.5A/230VAC
INRUSH CURRENT (max. )	18A/115VAC 36A/230VAC
LEAKAGE CURRENT	< 3.5mA / 240VAC
OVERLOAD	105 ~ 135% rated output power
Protection type: Hiccup mode, recovers automatically after fault condition is removed.
OVER VOLTAGE	5.75 ~ 6.75V	13.8 ~ 16.2V	18 ~ 21V	27.6 ~ 32.4V	33.7 ~ 39.2V	57.6 ~ 67.2V
Protection type: Hiccup mode, recovers automatically after fault condition is removed.
FAN CONTROL O. T. P.	RTH1 ≥ 65º C FAN ON, ≤ 55º C FAN OFF, ≥ 70º C (5 ~ 15V)
RTH1 ≥ 70º C FAN ON, ≤ 65º C FAN OFF, ≥ 80º C (24 ~ 48V)
Protection type: Hiccup mode, recovers automatically after fault condition is removed.
WORKING TEMP.	-10 ~ +60º C (Refer to output load derating curve)
WORKING HUMIDITY	20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY	-20 ~ +85º C, 10 ~ 95% RH
TEMP. COEFFICIENT	± 0.03%/º C (0 ~ 50º C)
VIBRATION	10 ~ 500Hz, 2G 10min. /1cycle, 60min. each along X, Y, Z axes
SAFETY STANDARDS	Design refer to UL1950
WITHSTAND VOLTAGE	I/P-O/P: 3KVAC 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
MTBF	188.7K hrs min. MIL-HDBK-217F (25º C)
DIMENSION	21511550mm (LWH)
PACKING	0.939Kg; 12pcs/13.74Kg/0.0263CMB

Dimension

Frequently asked questions about the S-320W S series single output manufacture China

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.