Over 15 years experience of providing support of MEAN WELL Power Supplies
Image shown is a representation only. Exact specifications should be obtained from the product datasheet.
Mean Well ADD-55B Security Power Supply 55.12W 27.6V 5V 1.3A - UPS, Dual output
Mean Well ADD-55B Security Power Supply 55.12W 27.6V 5V 1.3A - UPS,...
Overview
ADD-55B is the model of this series: rated power 55.12W, typical efficiency 74%.
Features
- Universal AC input / Full range
- Protections: Short circuit / Overload / Over voltage
- Battery low protections
- Cooling by free air convection
- 100% full load burn-in test
- Fixed switching frequency at 45KHz
- 2 years warranty
Specifications
OUTPUT
- OUTPUT NUMBER
- CH1, CH2, CH3
- DC VOLTAGE CH1
- 27.6V
- DC VOLTAGE CH2
- 5V
- DC VOLTAGE CH3
- 26.5V
- RATED CURRENT CH1
- 1.3A
- RATED CURRENT CH2
- 3A
- RATED CURRENT CH3
- 0.16A
- CURRENT RANGE CH1
- 0 ~ 2A
- CURRENT RANGE CH2
- 0 ~ 4A
- CURRENT RANGE CH3
- --------
- RATED POWER
- 55.12W
- RIPPLE & NOISE (max.) CH1Note.2
- 150mVp-p
- RIPPLE & NOISE (max.) CH2Note.2
- 150mVp-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
- ±0.5%
- LOAD REGULATION CH3
- --------
- SETUP, RISE TIME
- 800ms, 50ms/230VAC 1600ms, 50ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 80ms/230VAC 16ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 88 ~ 264VAC 124 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 74%
- AC CURRENT (Typ.)
- 1.6A/115VAC 1A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 20A/115VAC 40A/230VAC
- LEAKAGE CURRENT
- <1mA / 240VAC
PROTECTION
- OVERLOAD
- 105 ~ 150% rated output power Protection type : AC Charging Mode : Hiccup mode, recovers automatically after fault condition is removed UPS Mode : Protected by internal fuse
- OVER VOLTAGE
- CH1:28.98 ~ 37.26V Protection type : Hiccup mode, recovers automatically after fault condition is removed
FUNCTION
- DC ALARM SIGNAL(OPTIONAL)
- AC fail CN1 PIN2 Battery low under charge voltage 82.5%±2% CN1 PIN1 Normal 0.8V max. Abnormal 5V±0.5V
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 CH1 output
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC
- 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
- 2002.7K hrs min. Telcordia SR-332 (Bellcore) ; 373.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 159*97*38mm (L*W*H)
- PACKING
- 0.57Kg; 24pcs/13.7Kg/0.83CUFT
Test conditions and notes5
- 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 0.1μF & 47μF parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation.
- 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. 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
Downloads
Datasheet1
Certificates7
Test reports1
Catalogues1
FAQ
What is the ADD-55B typically used for?
The Mean Well ADD-55B is typically used in smaller security and backup-power systems that need a 27.6V main DC output in a dual-output power supply. With 55.12W of rated power and 1.3A on the main 27.6V output, it fits lighter-duty applications where a compact UPS-style supply is sufficient.
Can the ADD-55B support battery-backed security power designs?
Yes. The ADD-55B is positioned as a security power supply with UPS function, so it is suitable for battery-backed DC system designs when the connected load stays within the product's 27.6V, 1.3A, and 55.12W output rating.
Will the ADD-55B run from common 120V and 240V AC mains?
Yes. The listed AC input range is 88-264VAC, so the ADD-55B can operate from common AC mains systems within that range, including typical 120V and 240V supplies. That helps keep deployments flexible across sites.
How does the ADD-55B compare with other ADD series models?
Within the ADD-55 series, the ADD-55B delivers 55.12W with a 27.6V main output at 1.3A, plus a 5V/3A auxiliary output, at 74% typical efficiency. The ADD-55A provides 52.58W with a 13.8V main output at 2.5A and 71% typical efficiency. The choice depends on the main output voltage and battery system your design uses.
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.
Other ADD Series Models
50 other modelsPlease log in to write a review.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.
