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Mean Well RQB60W12-110S48 1/4 Brick, 14-160VDC Ultra Wide Input Railway DC-DC Converter, 60W, 48V output 1.25A

SKU RQB60W12-110S48

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Overview

RQB60W12-110S48 is the 48V output model of this series: rated power 60W, typical efficiency 90%.

RQB60W12 series is 60W module type DC-DC reliable railway with quarter brick package. It features international standard pins, a high efficiency up to 91.5%, wide working temperature range -40~+90℃ , 3KVDC or 2KVAC I/P-O/P isolation voltage, compliance with EN50155, meet to EN45545-2 with external circuits, continuous-mode short circuit protection, etc. The models input for 14~160VDC 12:1 ultra-wide input range, and various output voltage, 5V/12V/24V/48V/54V for single output, which are suitable for railway, trams, buses and also can be used in the harsh environment with high vibration, high dust, extremely low or high temperature, etc.

Features

Quarter-brick(2.28" x 1.45" x 0.5") with industrial standard pin-out
Compliance with railway standard EN50155, design meet EN45545-2
12:1(14~160Vdc) ultra-wide input range
Wide operating temperature range -40 ~ +90℃
No minimum load required
Full encapsulated
Protections: Short circuit (Continuous) / Overload / Over temperature / Over voltage / Input under voltage
3KVDC or 2KVAC I/O isolation
Remote ON/OFF control and remote sense
Triming output(±10% )
3 years warranty

Specifications

RQB60W12-110S48Specifications from the official datasheet (2025-10-09 edition)

INPUT

INPUT VOLTAGE (RANGE): Nominal 24V,36V,48V,72V,96V,110V (14 ~ 160V)
INPUT CURRENT NO LOAD: 15mA
INPUT CURRENT FULL LOAD: 610mA
VOLTAGE RANGE: 14 ~ 160Vdc
SURGE VOLTAGE (1s max.): 200Vdc
FILTER: Pi type
PROTECTION: 10A fast acting fuse
SETUP TIME: 40ms(100% Load at Nominal Vin)

OUTPUT

OUTPUT VOLTAGE: 48V
OUTPUT CURRENT: 1.25A
EFFICIENCY (Typ.): 90%
CAPACITOR LOAD (MAX.): 390μF
VOLTAGE ACCURACY: ±1.0%
RATED POWER: 60W
RIPPLE & NOISE^Note.2: 150mVp-p
LINE REGULATION^Note.3: ±0.2%
LOAD REGULATION^Note.4: ±0.2%
SWITCHING FREQUENCY (Typ.): 250KHz
EXTERNAL TRIM ADJ. RANGE (Typ.): ±10%
HOLD UP TIME: Please refer to page 5 & 6 Hold up time

PROTECTION

SHORT CIRCUIT: Protection type : Continuous, automatic recovery
OVERLOAD: 110 ~ 180% rated output power Protection type : Recovers automatically after fault condition is removed
OVER VOLTAGE: Protection type : Clamp by zener diode
OVER TEMPERATURE: +115℃ thermal shutdown, recovers automatically after fault condition is removed
UNDER VOLTAGE LOCKOUT (Table 3) Start-up voltage: 14V
UNDER VOLTAGE LOCKOUT (Table 3) Shutdown voltage: 12V Typ.(11.5V Minimum)

FUNCTION

REMOTE CONTROL: Power ON: R.C ~ -Vin > 3 ~ 12Vdc or open circuit Power OFF: R.C ~ -Vin < 1.2Vdc or short

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: -40 ~ +90℃ (Refer to "Derating Curve")
CASE TEMPERATURE: +105℃ max.
WORKING HUMIDITY: 5% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +125℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.05% / ℃ (0 ~ 65℃)
SOLDERING TEMPERATURE: 1.5mm from case of 3 ~ 5sec./260℃ max.
VIBRATION: EN61373
OPERATING ALTITUDE: 3000 meters

SAFETY & EMC ( Note.6)

SAFETY STANDARDS: CB IEC62368-1, UL62368-1, EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVDC or 2KVAC
ISOLATION RESISTANCE: I/P-O/P:1000M Ohms / 500VDC / 25℃/ 70% RH non-condensing
ISOLATION CAPACITANCE (Typ.): 1500pF
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032 Class A/B with external components
Radiated BS EN/EN55032 Class A/B with external components
EMC IMMUNITY: Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, ±8KV air, ±6KV contact
Radiated Susceptibility BS EN/EN61000-4-3 Level 3, 10V/m
EFT/Bursts(Note.5) BS EN/EN61000-4-4 Level 3, On power input port,±2KV external input capacitor required
Surge(Note.5) BS EN/EN61000-4-5 Level 3, On power input port,±2KV external input capacitor required
Conducted BS EN/EN61000-4-6 Level 3, 10V/m
Magnetic Field BS EN/EN61000-4-8 Level 3, 10V/m
RAILWAY STANDARD: EN50155 / IEC60571 including EN61373 for shock & vibration, EN50121-3-2 for EMC; Meet to EN45545-2

Parameter	Standard	Test Level
Conducted	BS EN/EN55032	Class A/B with external components
Radiated	BS EN/EN55032	Class A/B with external components

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, ±8KV air, ±6KV contact
Radiated Susceptibility	BS EN/EN61000-4-3	Level 3, 10V/m
EFT/Bursts(Note.5)	BS EN/EN61000-4-4	Level 3, On power input port,±2KV external input capacitor required
Surge(Note.5)	BS EN/EN61000-4-5	Level 3, On power input port,±2KV external input capacitor required
Conducted	BS EN/EN61000-4-6	Level 3, 10V/m
Magnetic Field	BS EN/EN61000-4-8	Level 3, 10V/m

OTHERS

MTBF: 205Khrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 57.9*36.8*12.7mm (2.28*1.45*0.5 inch)
CASE MATERIAL: Aluminum base plate with plastic case
PACKING: 68g ; 11pcs/per tube, 132pcs/12 tube/per carton

Test conditions and notes6

1.All parameters are specified at normal input(110Vdc), rated load, 25℃ 70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf & 47μf capacitor.
3.Line regulation is measured from low line to high line at rated load.
4.Load regulation is measured from 0% to 100% rated load.
5.External input capacitor required 330μF/220V(E-Cap.)
6.The final equipment must be re-confirm that it still meet EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”(as available on http://www.meanwell.com)

Technical drawings

RQB60W12-110S48 External Output Trimming — External Output Trimming

RQB60W12-110S48 Hold-up Time — Hold-up Time

RQB60W12-110S48 Mechanical Specification — Mechanical Specification

RQB60W12-110S48 Derating Curve — Derating Curve

RQB60W12-110S48 EMC Suggestion Circuit — EMC Suggestion Circuit

Typical applications

Bus, tram, metro or railway system
Telecom/datacom system
Wireless network
Industrial control facility
Instrument
Analyzer
Highly vibrating, heavily dusty, exteremely low or high temperature harsh environment

Downloads

::specification::

FAQ

What kind of applications is the Mean Well RQB60W12-110S48 designed for?

This model is designed for railway and industrial DC-DC conversion where a very wide DC input range is needed. Its EN50155 compliance, EN45545-2 design alignment, and 14-160VDC input range make it relevant for rolling stock, trackside equipment, and other demanding DC power environments.

What are the main output specifications of the RQB60W12-110S48?

The RQB60W12-110S48 is a 60W DC-DC converter with a nominal 48V output and 1.25A rated current. It also supports output trimming of plus or minus 10%, which can help when a system needs limited voltage adjustment within the product's stated range.

How wide is the input range on this DC-DC converter?

This model supports an ultra-wide 12:1 input range from 14VDC to 160VDC. That range is a key differentiator for buyers who need one converter series that can tolerate significant variation in available DC bus voltage.

Is the RQB60W12-110S48 suitable for harsh temperature environments?

Yes. The specified operating temperature range is -40°C to +90°C, which is broader than many standard industrial converters and supports use in demanding ambient conditions. The fully encapsulated construction also supports durability in tougher operating environments.

What protection and control features does this model include?

The RQB60W12-110S48 includes protection for short circuit, overload, over temperature, over voltage, and input under voltage. It also provides remote ON/OFF control, remote sense, and 3KVDC or 2KVAC input-to-output isolation for applications that need control flexibility and electrical isolation.

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Model	Power	Voltage	Current	IP Rating
Mean Well RQB60W12-110S54 1/4 Brick, 14-160VDC Ultra Wide Input Railway DC-DC Converter, 60W, 54V output 1.111A	60W	54V	1.111A	IP20	View
Mean Well RQB60W12-110S24 1/4 Brick, 14-160VDC Ultra Wide Input Railway DC-DC Converter, 60W, 24V output 2.5A	60W	24V	2.5A	IP20	View
Mean Well RQB60W12-110S12 1/4 Brick, 14-160VDC Ultra Wide Input Railway DC-DC Converter, 60W, 12V output 5A	60W	12V	5A	IP20	View
Mean Well RQB60W12-110S05 1/4 Brick, 14-160VDC Ultra Wide Input Railway DC-DC Converter, 60W, 5V output 10A	60W	5V	10A	IP20	View

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