EPS-45-36 - Charger Mean Well - Free user manual and instructions

Product Type	Single Output Switching Power Supply (Charger)
Model	EPS-45-36
Brand	Mean Well
Output Voltage	36 VDC
Output Current	1.25 A
Output Power	45 W
Input Voltage Range	85 ~ 264 VAC
Input Frequency	47 ~ 63 Hz
Efficiency (Typ.)	88%
Protections	Short Circuit / Overload / Over Voltage
Operating Temperature	-30°C ~ +70°C (derating above 50°C)
Dimensions (L x W x H)	99 x 97 x 36 mm
Weight	230 g
Cooling	Free air convection
Safety Standards	UL 60950-1, EN 60950-1, IEC 60950-1
EMC Standards	EN 55022 class B, EN 61000-3-2,3, EN 61000-4-2,3,4,5,6,8,11
Connection	Screw terminal block (input and output)
LED Indicator	Green (power on)
Mounting	Chassis mount with M4 screws
Warranty	3 years

Frequently Asked Questions - EPS-45-36 Mean Well

What is the input voltage range for the Mean Well EPS-45-36?

The input voltage range is 85 ~ 264 VAC at 47 ~ 63 Hz. This allows operation worldwide without voltage selection.

How do I connect the AC input wires?

Use the screw terminal block marked AC/L, AC/N, and FG (ground). Ensure the power is off before wiring. Tighten screws securely.

What is the output voltage and current?

The output voltage is 36 VDC and the maximum output current is 1.25 A, providing 45 W of power.

Can the EPS-45-36 be used as a battery charger?

Yes, it can be used to charge a 36 V battery bank, but a suitable charge controller or current limiting is recommended to avoid overcharging.

What protections does this power supply have?

It includes short circuit protection (hiccup mode), overload protection (constant current limiting), and over voltage protection (clamp). Recovery is automatic after fault removal.

What are the dimensions and weight?

Dimensions are 99 x 97 x 36 mm (LxWxH) and weight is approximately 230 g. It is compact and lightweight.

Is the EPS-45-36 suitable for outdoor use?

It is designed for indoor use only. Operating temperature is -30°C to +70°C, but it must be kept dry and free from condensation.

How do I mount the power supply?

Use the four mounting holes with M4 screws. Ensure adequate ventilation for free air convection cooling. Do not cover the unit.

What is the efficiency of this power supply?

Typical efficiency is 88% at full load, contributing to energy savings and less heat generation.

How long is the warranty period?

Mean Well provides a 3-year warranty from the date of manufacture. Check with your distributor for specific terms.

USER MANUAL EPS-45-36 Mean Well

● Type : Open Frame (PCB) Type Switching Power Supply

(Families: PM, NFM, IRM, MPS, MPD, MPT, MPQ, RPS, RPD, RPT, PS, PD, PT, PQ, PPS, PPT, PPQ, ASP, PID, LPS, LPP, EPS, ELP, EPP)

- Introduction

An open frame (PCB) type switching power supply is a power supply designed to be integrated or installed into a system enclosure. Mean Well's open frame (PCB) type power supplies include on board, general PCB, green PCB, and medical PCB types.

- Installation

(1) Before commencing any installation or maintenance work, please disconnect your system from the utility. Ensure that it cannot be re-connected inadvertently!
(2) At least 5mm insulation distance on the bottom of the unit should be kept and a Mylar film should be added between the unit and the system. In addition, keep enough insulation distance, 10mm for general type/15mm for medical type, around the unit.
(3) Power supplies greater than 120W may require a forced air/fan for cooling. Please refer to specifications to receive a minimum air intensity and air-flow direction.
(4) Allow good ventilation for the unit in use to prevent it from overheating. Also, a 10-15 cm clearance must be kept when the adjacent device is a heat source.
(5) Mounting orientations other than standard orientation or operate under high ambient temperature may increase the internal component temperature and will require a de-rating in output current. Please refer to the specification sheets to receive the optimum mounting position and information about the de-rating curve.
(6) Recommended wires are shown as below.

AWG	18	16	14	12	10	8
Rated Current of Equipment (Amp)	6A	6-10A	10-16A	16-25A	25-32A	32-40A
Cross-section of Lead( mm2 )	0.75	1.00	1.5	2.5	4	6
Note:Current each wire carries should be de-rated to 80% of the current suggested above when using 5 or more wires connected to the unit.

(7) For other information about the products, please refer to www.meanwell.com for details.

- Warning / Caution !!

(1) Risk of electrical shock and energy hazard. All failure should be examined by a qualified technician. Please do not try to fix the power supply by yourself!
(2) Please do not install power supplies in places with high moisture or near the water.
(3) Please do not install power supplies in places with high ambient temperature or near fire source. Please refer to the specifications about the maximum ambient temperature limitations.
(4) Output current and output wattage must not exceed the rated values on specifications.
(5) The ground (FG) must be connected to earth ground.
(6) All MW's PSUs are designed in accordance with EMC regulations and the related test reports are available by request. Since they are belong to component power supplies and will be installed inside system enclosure, when they are integrated into a system, the EMC characteristics of the end system must be re-verified again.

Installation Manual

Manufacturer :

MEAN WELL ENTERPRISES Co., LTD.

No.28, Wuquan 3rd Rd., Wugu Dist.,

New Taipei City 24891, Taiwan

Tel: [phone]

Web: www.meanwell.com

Branch Office :

China

MEAN WELL (GUANGZHOU)

ENTERPRISES Co., LTD.

2F, A Building, Yuean Industry Park,

Huangcun, Dongpu Yown, Tianhe

District, Gungzhou, China

Post Code:510660

Tel: [phone]

Web: www.meanwell.com.cn

U.S.A.

MEAN WELL USA, INC.

44030 Fremont Blvd., Fremont,

CA 94538, U.S.A.

Tel: [phone]

Web: www.meanwellusa.com

Europe

MEAN WELL EUROPE B.V.

Langs de Werf 8, 1185XT

Amstelveen, The Netherlands

Tel: [phone]

Web: www.meanwell.eu