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Mean Well LRS-35-12 Power Supply 35W 12V 3A
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Mean Well LRS-35-12 Power Supply 35W 12V 3A
Overview
LRS-35-12 is the 12V output model of this series: rated current 3A, rated power 36W, typical efficiency 86%.
LRS-35 series is a 35W single-output enclosed type power supply with 30mm of low profile design. Adopting the full range 85~264VAC input, the entire series provides an output voltage line of 5V, 12V, 15V, 24V, 36V and 48V. In addition to the high efficiency up to 89%, the design of metallic mesh case enhances the heat dissipation of LRS-35 that the whole series operates from -30℃ through 70℃ under air convection without a fan. Delivering an extremely low no load power consumption (less than 0.2W), it allows the end system to easily meet the worldwide energy requirement. LRS-35 has the complete protection functions and 5G anti-vibration capability; it is complied with the international safety regulations such as TUV BS EN/EN62368-1, BS EN/EN60335-1,BS EN/EN61558-1/-2-16, UL62368-1 and GB 4943.1. LRS-35 series serves as a high price-to-performance power supply solution for various industrial applications.
Features
- Universal AC input / Full range
- Withstand 300VAC surge input for 5 second
- No load power consumption<0.2W
- Miniature size and 1U low profile
- High operating temperature up to 70℃
- Protections: Short circuit / Overload / Over voltage
- Cooling by free air convection
- Compliance to IEC/BS EN/EN 60335-1(PD3) and IEC/BS EN/EN61558-1, -2-16 for household applications
- Operating altitude up to 5000 meters (Note.8)
- Withstand 5G vibration test
- High efficiency, long life and high reliability
- LED indicator for power on
- Over voltage category Ⅲ
- 100% full load burn-in test
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 12V
- RATED CURRENT
- 3A
- CURRENT RANGE
- 0 ~ 3A
- RATED POWER
- 36W
- RIPPLE & NOISE (max.)Note.2
- 120mVp-p
- VOLTAGE ADJ. RANGE
- 10.2 ~ 13.8V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATIONNote.4
- ±0.5%
- LOAD REGULATIONNote.5
- ±0.5%
- SETUP, RISE TIME
- 1000ms, 30ms/230VAC 2000ms,30ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 30ms/230VAC 12ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 85 ~ 264VAC 120 ~ 373VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 86%
- AC CURRENT (Typ.)
- 0.7A/115VAC 0.42A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 45A/230VAC
- LEAKAGE CURRENT
- <0.75mA / 240VAC
PROTECTION
- OVER LOAD
- 110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 13.8 ~ 16.2V Protection type : Shut down o/p voltage, re-power on to recover
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH non-condensing
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
- OVER VOLTAGE CATEGORY
- Ⅲ; According to BS EN/EN61558, BS EN/EN50178, BS EN/EN60664-1, BS EN/EN62477-1; altitude up to 2000 meters
SAFETY & EMC (Note 9)
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16,GB 4943.1, BSMI CNS15598-1, EAC TP TC 004,AS/NZS 60950.1(by CB),KC K60950-1(for LRS-35-12/24 only), BIS IS13252(Part1): 2010/IEC 60950-1: 2005(NOTE 10) approved
- WITHSTAND VOLTAGE
- I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.25KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN55014, BS EN/EN61000-3-2,-3, GB17625.1,GB/T 9254.1, BSMI CNS15936, EAC TP TC 020,KC KN32,KN35(for LRS-35-12/24 only)
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61000-6-2 (BS EN/EN50082-2), BS EN/EN55035, heavy industry level, EAC TP TC 020,KC KN32,KN35(for LRS-35-12/24 only)
OTHERS
- MTBF
- 3201.5K hrs min. Telcordia SR-332 (Bellcore) ; 655.5Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 99*82*30mm (L*W*H)
- PACKING
- 0.21Kg ; 60pcs/14Kg/0.93CUFT
Test conditions and notes10
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ 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.
- 4. Line regulation is measured from low line to high line at rated load.
- 5. Load regulation is measured from 0% to 100% rated load.
- 6. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
- 7. 5V when the load factor 0~50%, the switching power less is reduced by burst operation, which will cause ripple and ripple noise to go beyond the specifications.
- 8. The ambient temperature derating of 5℃/1000m is needed for operating altitude greater than 2000m(6500ft).
- 9. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
- 10. Some model may not have the BIS logo, please contact your MEAN WELL sales for more information.
Technical drawings
Typical applications
- Industrial automation machinery
- Industrial control system
- Mechanical and electrical equipment
- Electronic instruments, equipments or apparatus
- Household application
Downloads
Datasheet1
Certificates6
Test reports1
FAQ
What types of equipment is the LRS-35-12 suited for?
The LRS-35-12 outputs 12V DC at up to 3A, making it suitable for industrial control panels, embedded computing systems, networking equipment, and automation controllers that require a stable 12V rail. Its 36W rated output handles moderate multi-load systems within a single compact enclosure.
Is the LRS-35-12 suitable for use in high-temperature environments?
The LRS-35-12 is rated for an operating temperature range of -30°C to +70°C, but the output must be derated at higher ambient temperatures according to the derating curve on the datasheet. Above 2000m altitude, an additional ambient temperature derating of 5°C per 1000m applies.
How does the LRS-35-12 compare to other voltage options in the LRS-35 series?
The LRS-35 series offers multiple output voltages to match different system requirements. The available variants (with rated power, voltage, and current) are: LRS-35-15: 36W, 15V, 2.4A; LRS-35-24: 36W, 24V, 1.5A; LRS-35-36: 36W, 36V, 1A; LRS-35-48: 38.4W, 48V, 0.8A; LRS-35-5: 35W, 5V, 7A. The LRS-35-12 itself is rated at 36W, 12V, 3A. All share the same universal input range of 85-264VAC and operating temperature of -30°C to +70°C.
Does the LRS-35-12 meet any vibration resistance requirements?
Yes, the LRS-35-12 is rated for 10-500Hz, 5G vibration (10 min per cycle, 60 min each along the X, Y and Z axes), making it appropriate for equipment installed in environments subject to mechanical vibration such as factory floors. Its -30°C to +70°C operating range (with derating at higher temperatures) covers many industrial ambient conditions.
How do I determine if the LRS-35-12 has enough headroom for my load?
The LRS-35-12 is rated at 36W output. Best practice is to keep continuous load at or below 80% of rated capacity, which for this unit is approximately 28.8W sustained draw. The 12V output at 3A gives the total current budget across all loads sharing this supply.
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Other LRS-35 Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well LRS-35-5 Power Supply 35W 5V 7A | 35W | 5V | 7A | IP20 | $12.79 | View |
| Mean Well LRS-35-24 Power Supply 35W 24V 1.5A | 36W | 24V | 1.5A | IP20 | $12.18 | View |
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