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

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

SKU PSC-35B-C

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Overview

PSC-35B-C 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-35B-CSpecifications 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-C Output Derating — Output Derating

PSC-35B-C Suggested Application — Suggested Application

PSC-35B-C 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-35BC Test Report PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the PSC-35B-C for a compact 24V control or automation backup application?

It is rated for 27.6V constant-voltage output at up to 0.85A, with 35.88W total output power. That suits lower-power 24V-class control or automation backup applications that use a 27.6V charging level.

Is the PSC-35B-C appropriate for small embedded systems that use a 24V-class battery-backed supply?

For low-power embedded equipment, this model supplies 27.6V and 0.85A from a 90-264VAC input range. It is a fit where the battery charging or standby requirement remains within 35.88W.

Can the PSC-35B-C be used when I need a covered version of a 27.6V low-power charger?

Yes, the feature list states that -C types are models with L-bracket and cover available, while this version keeps the same 27.6V, 0.85A, and 35.88W rating as PSC-35B. It is intended for the same low-power 24V-class applications with that covered variant format.

Is the PSC-35B-C suitable for outdoor enclosures?

The listed operating temperature range is -30°C to +70°C, but no IP rating is provided in the supplied specs. Without an IP rating, outdoor exposure or weather resistance should not be assumed from this information alone.

What separates the PSC-35B-C from the other 27.6V PSC models?

PSC-35B-C is rated at 35.88W, 27.6V, and 0.85A, while PSC-60B and PSC-60B-C are 59.34W and 1.4A, PSC-100B and PSC-100B-C are 100.74W and 2.4A, and PSC-160B and PSC-160B-C are 160W and 3.8A. Compared with PSC-35B, the PSC-35B-C keeps the same electrical rating but has dimensions of 86.4 × 59.6 × 30.0 mm and weight of 0.145 kg.

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