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Mean Well ADD-155B Security Power Supply 152.75W 27.6V 5V 4.5A - UPS, Dual output

built-in PFC function100% full load burn-in testfixed switching frequency at PFC 67KHzPWM 134KHz single outputUPS function with additional 5V output
SKU ADD-155B
$72.53 USD
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Overview

ADD-155B is the model of this series: rated power 152.75W, typical efficiency 81%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function
  • Protections: Short circuit / Overload / Over voltage
  • Battery low/battery polarity protections
  • Cooling by free air convection
  • 100% full load burn-in test
  • Fixed switching frequency at PFC 67KHz, PWM 134KHz
  • 2 years warranty

Specifications

ADD-155BSpecifications from the official datasheet (2024-01-26 edition)

OUTPUT

OUTPUT NUMBER
CH1, CH2, CH3
DC VOLTAGE CH1
27.6V
DC VOLTAGE CH2
5V
DC VOLTAGE CH3
27.1V
RATED CURRENT CH1
4.5A
RATED CURRENT CH2
3A
RATED CURRENT CH3
0.5A
CURRENT RANGE CH1
0 ~ 5A
CURRENT RANGE CH2
0 ~ 3A
CURRENT RANGE CH3
--------
RATED POWER
152.75W
RIPPLE & NOISE (max.) CH1Note.2
200mVp-p
RIPPLE & NOISE (max.) CH2Note.2
100mVp-p
RIPPLE & NOISE (max.) CH3Note.2
--------
VOLTAGE ADJ. RANGE
CH1: 24 ~ 29V
VOLTAGE TOLERANCE CH1Note.3
±1.0%
VOLTAGE TOLERANCE CH2Note.3
±3.0%
VOLTAGE TOLERANCE CH3Note.3
--------
LINE REGULATION CH1
±1.0%
LINE REGULATION CH2
±0.5%
LINE REGULATION CH3
--------
LOAD REGULATION CH1
±1.0%
LOAD REGULATION CH2
±2.0%
LOAD REGULATION CH3
--------
SETUP, RISE TIME
1000ms, 90ms/230VAC 2000ms, 90ms/115VAC at full load
HOLD UP TIME (Typ.)
24ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGE
88 ~ 264VAC 124 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF>0.92 at full load
EFFICIENCY (Typ.)
81%
AC CURRENT (Typ.)
2.5A/115VAC 1.5A/230VAC
INRUSH CURRENT (Typ.)
COLD START 23A/115VAC 45A/230VAC
LEAKAGE CURRENT
<1mA / 240VAC

PROTECTION

OVERLOAD
CH1,CH2:105 ~ 135% CH3:0.51 ~ 0.9A rated output power Protection type : AC Charging Mode : Constant current limiting, recovers automatically after fault condition is removed UPS Mode : Protected by internal fuse
OVER VOLTAGE
CH1:31.74 ~ 37.26V Protection type : Shut down o/p voltage, re-power on to recover
BATTERY LOW
19.5V(+1.5V,-1V )

ENVIRONMENT

WORKING TEMP.
-10 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-20 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃) on +5V output
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
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/EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
1744.5K hrs min. Telcordia SR-332 (Bellcore) ; 221.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
199*110*50mm (L*W*H)
PACKING
1Kg; 16pcs/16Kg/0.95CUFT
Test conditions and notes5
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. 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 )
  5. 5. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

ADD-155B Mechanical Specification
Mechanical Specification
ADD-155B Block Diagram
Block Diagram
ADD-155B Derating Curve
Derating Curve

Downloads

FAQ

What is the ADD-155B typically used for?

The Mean Well ADD-155B is typically used in security and backup-power systems that need a 27.6V main DC output and benefit from a dual-output design. With 152.75W of rated power and 4.5A on the main 27.6V output, it is a fit for higher-voltage DC loads in systems where an auxiliary low-voltage rail is also useful.

Is the ADD-155B suitable for battery-backed UPS-style DC systems?

Yes. The ADD-155B is a dual-output power supply with a battery charger (UPS function), so it is intended for DC systems that combine normal operation with battery-backed support. The primary connected load should stay within the unit's 27.6V, 4.5A, and 152.75W output capability.

Does the ADD-155B support common 120V and 240V AC input ranges?

Yes. The specified AC input range is 88-264VAC, which allows the ADD-155B to operate from common 120V and 240V mains supplies within that range. That flexibility is useful when standardizing installations across different sites.

Can the ADD-155B be mounted in exposed outdoor conditions?

The current product data does not show a waterproof IP rating, so the ADD-155B should be treated as an indoor or protected-enclosure power supply rather than a unit for direct outdoor exposure. Its listed working temperature is -10°C to +60°C, but enclosure protection should still match the environment.

How does the ADD-155B compare with other ADD series models?

The ADD-155B provides 152.75W with a 27.6V main output at 4.5A in a dual-output design. In the same family, the ADD-155C provides 149.9W with a 54V main output at 2.3A, while the ADD-155A provides 152.75W with a 13.8V main output at 9.5A. Selection depends on which main output voltage class you need and how much current headroom your application needs.

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Mean Well ADD-155B Security Power Supply 152.75W 27.6V 5V 4.5A - UPS, Dual output
Mean Well

Mean Well ADD-155B Security Power Supply 152.75W 27.6V 5V 4.5A - UPS, Dual output

$72.53 USD

ADD-155B is the model of this series: rated power 152.75W, typical efficiency 81%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function
  • Protections: Short circuit / Overload / Over voltage
  • Battery low/battery polarity protections
  • Cooling by free air convection
  • 100% full load burn-in test
  • Fixed switching frequency at PFC 67KHz, PWM 134KHz
  • 2 years warranty
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