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Mean Well PSC-35B Battery Chargers 35.88W 27.6V 0.85A - PFC

with UPS functionmodels with L-bracket and cover available(-C type)

SKU PSC-35B

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Overview

PSC-35B is the CH1: 27.6V / CH2: 27.6V output model of this series: rated current CH1: 0.85A / CH2: 0.45A, rated power 35.88W, typical efficiency 86%.

PSC-35 series is a 35W AC/DC security power supply, allowing the universal input range between 90VAC and 264VAC and incorporating the built-in PFC function. In addition to the primary output, there is a charger output, with a smaller rated current, providing the backup application the security access systems normally need. PSC-35 delivers an efficiency up to 86%; it can operate with air convection under -30℃ through 70℃. This series is designed with thorough alarm features, including AC OK and battery low signaling; moreover, the relay contact is provided to facilitate users system designs. PSC-35 is available in the PCB type (3.3" x 2") or the enclosed type with L-Bracket and cover.

Features

Universal AC input / Full range
3.3"x2" compact PCB size
Models with L-Bracket and cover available (PSC-35x-C, x=A,B)
Protections: Short circuit / Overload / Over voltage
Battery low protection / Battery reverse polarity protection by fuse
Alarm signal for AC OK and Battery low
Cooling by free air convection
100% full load burn-in test
2 years warranty

Specifications

PSC-35BSpecifications from the official datasheet (2024-10-30 edition)

OUTPUT

OUTPUT NUMBER: CH1 / CH2
DC VOLTAGE: CH1: 27.6V / CH2: 27.6V
RATED CURRENT: CH1: 0.85A / CH2: 0.45A
CURRENT RANGE: CH1: 0 ~ 1.3A / CH2: --------
RATED POWER: 35.88W
RIPPLE & NOISE (max.)^Note.2: CH1: 240mVp-p / CH2: --------
VOLTAGE ADJ. RANGE: CH1: 24 ~ 29V
VOLTAGE TOLERANCE^Note.3: CH1: ±1.0% / CH2: --------
LINE REGULATION: CH1: ±0.5% / CH2: --------
LOAD REGULATION: CH1: ±0.5% / CH2: --------
SETUP, RISE TIME^Note.4: 800ms, 50ms/230VAC 1600ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.): 50ms/230VAC 10ms/115VAC at full load

INPUT

VOLTAGE RANGE: 90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 86%
AC CURRENT (Typ.): 0.75A/115VAC 0.5A/230VAC
INRUSH CURRENT (Typ.): COLD START 20A/115VAC 40A/230VAC
LEAKAGE CURRENT: <1mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: CH1:28.98 ~ 39.5V Protection type : Shut down O/P Voltage, repower on to recover
BATTERY CUT OFF: 20±1V

FUNCTION

AC OK: TTL open collector output, ON : AC OK ; OFF : AC Fail ; Ice : max. 30mA@ 50VDC
BATTERY LOW: TTL open collector output, ON : Battery Low ; OFF : Battery OK ; Ice : max. 30mA@ 50VDC Battery low voltage : < 22V

ENVIRONMENT

WORKING TEMP.: -30 ~ +70℃ (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: 4114.3K hrs min. Telcordia SR-332 (Bellcore) ; 658.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: PCB:84.6*50.8*24mm (L*W*H) ; Enclosed type:86.4*59.6*30mm (L*W*H)
PACKING: PCB:0.092Kg;90pcs/9.28Kg/0.97CUFT ; Enclosed type: 0.145Kg;100pcs/15.5Kg/1.03CUFT

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 0.1μF & 47μF parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
5. Heat sink HS1,HS2 can not be shorted.
6. Heat sink HS1 must have safety isolation distance with system case.
7. The power supply is considered a component which will be installed into a final equipment. 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 )
8. 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

PSC-35B Output Derating — Output Derating

PSC-35B Suggested Application — Suggested Application

PSC-35B Mechanical Specification — Mechanical Specification

Typical applications

Downloads

Certificates7

Mean Well E183223 UL Certificate PDF Download

Mean Well PSC-35-TUV Certificate PDF Download

Mean Well PSC-35-CB (UL) Certificate PDF Download

Mean Well PSC-35-CB (TUV) Certificate PDF Download

Mean Well PSC-35-EMC Certificate PDF Download

Mean Well PSC-35-CE-dec Certificate PDF Download

Mean Well PSC-35-UK-dec Certificate PDF Download

Test reports1

Mean Well PSC-35B Test Report PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the PSC-35B for a small 24V industrial backup power application?

It provides 27.6V constant-voltage output at up to 0.85A on CH1, with 35.88W total output power. That makes it appropriate for smaller 24V-class backup or charging applications that use a 27.6V profile and stay within 0.85A.

Is the PSC-35B suitable for low-power telecom or monitoring equipment on a 24V-class battery system?

For low-demand DC backup roles, this model offers 27.6V and 0.85A from a 90-264VAC input range. It fits 24V-class telecom, monitoring, or remote control equipment where the total requirement stays within 35.88W.

Can the PSC-35B work for embedded or automation loads that need a 24V-class charger with UPS function?

Yes, for lighter-duty use cases it combines 27.6V output with 0.85A current capability and UPS function support. It is best matched to low-power embedded or automation systems rather than higher-demand 24V loads.

Is the PSC-35B meant for indoor or outdoor service?

The unit is specified for -30°C to +70°C operation, which supports a wide indoor temperature range. The provided specifications do not include an IP rating, so outdoor suitability is not confirmed by this data.

How does the PSC-35B compare to the other 27.6V PSC models?

At 27.6V, PSC-35B is 35.88W and 0.85A. The PSC-35B is the lowest-current and lowest-power 27.6V model in that set.

Payment & Security

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Mean Well PSC-60B Battery Chargers 59.34W 27.6V 1.4A - PFC	59.34W	27.6V	1.4A	27.6V	View
Mean Well PSC-60A Battery Chargers 59.34W 13.8V 2.8A - PFC	59.34W	13.8V	2.8A	13.8V	View
Mean Well PSC-35B-C Battery Chargers 35.88W 27.6V 0.85A - PFC	35.88W	27.6V	0.85A	27.6V	View
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Mean Well PSC-35A Battery Chargers 35.88W 13.8V 1.7A - PFC	35.88W	13.8V	1.7A	13.8V	View
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Mean Well PSC-160A Battery Chargers 160W 13.8V 7.6A - PFC	160W	13.8V	7.6A	13.8V	View
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Mean Well PSC-100A Battery Chargers 100.05W 13.8V 4.75A - PFC	100.05W	13.8V	4.75A	13.8V	View

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