Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well LRS-1200-12 Enclosed Power supply 1104W 12V 92A

AC input 180~305Vaccompact size with low profile150% peak power 5sconformal coating

SKU LRS-1200-12

Log in to see price Trade pricing & online ordering for account holders

Available to order

Overview

LRS-1200-12 is the 12V output model of this series: rated current 92A, rated power 1104W, typical efficiency 91%.

LRS-1200 series is a 1200W single-output enclosed type economical power supply with 41mm of low profile design. Adopting the input of 180~ 305Vac , the entire series provides an output voltage line of 12V, 24V,36V and 48V. In addition to the high efficiency up to 94%, with the built-in long life fan LRS-1200 can work under -30~+70℃with full load. LRS-1200 has the complete protection functions and 3G anti-vibration capability; It is complied with complete international safety regulations. LRS-1200 series serves as a high price-to-performance power supply solution for various industrial applications.

Features

AC input 180~305Vac input
Global certificates in multi-fields (ITE 62368-1,Industrial 61558-1/-2-16)
Compact size with low profile(17W/inch³)
150% peak power @5s
High efficiency up to 94%
Built-in constant current limiting circuit
Protections: Short circuit / Overload / Over voltage / Over temperature
Forced air cooling,cooling fan speed control
Built-in DC OK/Remote Control/Remote Sense
-30~+70℃wide range operation temperature
Over voltage category(OVC Ⅲ)
Operating altitude up to 5000 meters
Conformal coating
3 years warranty

Specifications

LRS-1200-12Specifications from the official datasheet (2026-09-11 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 92A
CURRENT RANGE: 0 ~ 92A
RATED POWER: 1104W
PEAK CURRENT(5 sec.): 138A
PEAK POWER(5 sec.): 1656W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE ADJ.RANGE^Note.3: 12~ 15V
VOLTAGE TOLERANCE^Note.4: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1500ms, 70ms/230Vac 1500ms, 70ms/277Vac at full load
HOLD UP TIME (Typ.): 10ms/230Vac 10ms/277Vac at full load

INPUT

VOLTAGE RANGE^Note.5: 180 ~ 305Vac 255 ~ 431Vdc
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≥0.95/230Vac, PF≥0.93/277Vac at full load
EFFICIENCY (Typ.): 91%
AC CURRENT (Typ.): 7A/230Vac 5A/277Vac
INRUSH CURRENT (Typ.): 60A/230Vac 75A/277Vac
LEAKAGE CURRENT: <2mA / 240Vac / 277Vac

PROTECTION

OVER LOAD: Output power >105% rated for more than 5 seconds then shut down o/p voltage, re-power on to recover Constant current limiting for output power >150% rated for more than 5 seconds and then shut down o/p voltage, re-power on to recover
OVER VOLTAGE: 16 ~ 20V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, re-power on to recover

FUNCTION

REMOTE CONTROL: Power ON: RC+~RC- 0~0.8Vdc or open Power OFF: RC+~RC- 3.3~10Vdc by external voltage
REMOTE SENSE: Compensate voltage drop on the load wiring up to 0.3Vdc. Please refer to the Function Manual
DC OK SIGNAL: Power ON:3.3 ~ 5.6Vdc Power OFF: 0 ~ 1Vdc
FAN NOISE(Typ.): Built-in intelligent fan speed control detect by PSU'S internal temperature 10% load with Ta=25℃ 45dB 70% load with Ta=25℃ 53dB

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 ~ 30℃)
VIBRATION: 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY &EMC

SAFETY STANDARDS^{Note 6}: CB IEC62368-1,IEC61558-1/-2-16 ; UL UL62368-1 ; DEKRA BS EN/EN62368-1,BS EN/EN61558-1/-2-16 ; RCM AS/NZS 62368-1,AS/NZS 61558-1/-2-16 ; CQC GB 4943.1 ; BSMI CNS15598-1 ; EAC TPTC 004 approved ; KC/BIS KC62368-1 and BIS IS 13252( Part 1) :2010 certified, no stock by request, contact sale for inquires
OVER VOLTAGE CATEGORY: IEC/EN 61558-1/-2-16 (OVC Ⅲ, altitude up to 2000M) ; IEC/EN/UL 62368-1 (OVC Ⅱ, altitude up to 5000M)
WITHSTAND VOLTAGE: I/P-O/P:4.2KVac I/P-FG:2.1KVac 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: Parameter Standard Test Level

Conducted BS EN/EN55032 (CISPR32),CNS15936 Class A
Radiated BS EN/EN55032 (CISPR32),CNS15936 Class A
Harmonic Current BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3 -----
EMC IMMUNITY: BS EN/EN55035, BS EN/EN61000-6-2

Parameter Standard Test Level

ESD BS EN/ EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact
Radiated BS EN/ EN61000-4-3 Level 3, 10V/m
EFT / Burst BS EN/ EN61000-4-4 Level 3, 2KV/5KHz
Surge BS EN/ EN61000-4-5 Level 4, 2KV/Line-Line 4KV/Line-Earth
Conducted BS EN/ EN61000-4-6 Level 3, 10V
Magnetic Field BS EN/ EN61000-4-8 Level 4, 30A/m
Voltage Dips and Interruptions BS EN/ EN61000-4-11 >95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55032 (CISPR32),CNS15936	Class A
Radiated	BS EN/EN55032 (CISPR32),CNS15936	Class A
Harmonic Current	BS EN/EN61000-3-2	Class A
Voltage Flicker	BS EN/EN61000-3-3	-----

Parameter	Standard	Test Level
ESD	BS EN/ EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact
Radiated	BS EN/ EN61000-4-3	Level 3, 10V/m
EFT / Burst	BS EN/ EN61000-4-4	Level 3, 2KV/5KHz
Surge	BS EN/ EN61000-4-5	Level 4, 2KV/Line-Line 4KV/Line-Earth
Conducted	BS EN/ EN61000-4-6	Level 3, 10V
Magnetic Field	BS EN/ EN61000-4-8	Level 4, 30A/m
Voltage Dips and Interruptions	BS EN/ EN61000-4-11	>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

OTHERS

MTBF: 924.6K hrs min. Telcordia SR-332(Bellcore) ; 93.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION (L*W*H): 225*124*41mm (L*W*H)
PACKING: 1.28Kg/9pcs/12Kg/0.81CUFT

Test conditions and notes8

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. Voltage adjustment can only be operated within the input range of 220-277Vac. If the voltage adjustment is performed outside this range, it may cause abnormal output.
4. Tolerance : includes set up tolerance, line regulation and load regulation.
5. Derating may be needed under low input voltages. Please refer to"Static Characteristics" sections for details.
6. 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 720mm*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)
7. The ambient temperature derating of 5℃/1000m is needed for operating altitude greater than 2000m(6500ft).
8. RCM is on voluntary basis and meets relevant IEC or AS/NZS standards complying with AS/NZS 441.1

Technical drawings

LRS-1200-12 Block Diagram — Block Diagram

LRS-1200-12 1. Peak Power — 1. Peak Power

LRS-1200-12 L R S - 1 2 0 0 series — L R S - 1 2 0 0 series

LRS-1200-12 3. Remote Sense — 3. Remote Sense

LRS-1200-12 4. DC_OK Signal — 4. DC_OK Signal

LRS-1200-12 Mechanical Specification — Mechanical Specification

LRS-1200-12 Accessory List — Accessory List

LRS-1200-12 Installation Diagram — Installation Diagram

Typical applications

Industrial automation machinery
Industrial control system
Mechanical and electrical equipment
Electronic instruments, equipments or apparatus

Downloads

Datasheet1

LRS-1200-12 datasheetLRS_1200_Spec_Sheet.pdf · 2026-09-11 edition PDF Download

FAQ

What high-power applications is the LRS-1200-12 designed for?

The LRS-1200-12 delivers 12V DC at up to 92A (1104W rated), making it suitable for high-current 12V bus systems, large LED arrays, industrial motor drives, and data center auxiliary power rails. It also supports 1656W peak power for up to 5 seconds, which helps with demanding loads that draw short surges.

Is the LRS-1200-12 suitable for use in high-temperature environments?

The LRS-1200-12 is rated for operation from -30°C to +70°C, with output derating required at higher ambient temperatures (see the datasheet derating curve). It is cooled by a built-in fan with intelligent speed control based on internal temperature. The datasheet lists no IP rating and specifies 20-90% RH non-condensing, so it is not intended for outdoor or wet-location use.

What input voltage range does the LRS-1200-12 accept?

The LRS-1200-12 accepts 180-305VAC (47-63Hz) or 255-431VDC, covering 200-277V class AC mains without manual voltage selection. It is not suitable for 100V/120V mains; derating may be needed at low input voltages, and output voltage adjustment should only be done with 220-277VAC input.

How do I determine if the LRS-1200-12 has enough headroom for my load?

The LRS-1200-12 is rated at 1104W continuous output, so the 12V output at 92A gives the total current budget across all loads sharing this supply. Short peaks up to 1656W (138A) are allowed for up to 5 seconds within the duty limits in the Function Manual. Allow for derating at high ambient temperature and low input voltage, as shown in the derating and static characteristics curves.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Model	Power	Voltage	Current
Mean Well LRS-1200-48 Enclosed Power supply 1200W 48V 25A	1200W	48V	25A	View
Mean Well LRS-1200-24 Enclosed Power supply 1200W 24V 50A	1200W	24V	50A	View
Mean Well LRS-1200-36 Enclosed Power supply 1198.8W 36V 33.3A	1198.8W	36V	33.3A	View

Customer reviews

4.7 Reviews verified for authenticity

5 ★ (13)

4 ★ (3)

3 ★ (1)

2 ★ (0)

1 ★ (0)

Reviewed by 17 customers across the LRS series

Cheap and reliable enclosed PSU
By Ravi N.|2026-06-14✓ Verified Buyer
Model: LRS-50-24Quantity: 10
LRS-50-24 powers our sensor rack. Great price, no fuss.
Good budget option
By Kelly B.|2026-05-20✓ Verified Buyer
Model: LRS-100-24Quantity: 4
Runs a bit warm in a sealed box — add airflow. Otherwise solid.
Standardised on these
By FitOut Ltd|2026-04-25
Model: LRS-350-24Quantity: 25
Use LRS across all our retail fit-outs now.

Please log in to write a review.

{ "id":14746599129454, "variants" :[{ "context":"default", "variant_id": 52193390330222, "sku":"LRS-1200-12", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }