What is the lead time for production?

The lead time is within 15 workdays during the off-season and one month during the peak season.

Does the power supply have an auto-switch function?

Yes, it includes an auto-switch function for serial and parallel connections.

What is the input voltage range for this device?

The rated voltage is 220-230V (198-242V) with a rated frequency of 50/60Hz (47-63Hz).

Sk33231/33251 Programmable DC Power Supply with 4 Digit LED Display

Name: Sk33231/33251 Programmable DC Power Supply with 4 Digit LED Display
Brand: Shijiazhuang Suin Instruments Co., Ltd.
SKU: 771148122

Hebei, ChinaShijiazhuang Suin Instruments Co., Ltd.

US$240.00-286.00

1 SET

Sample price:US$240.00/set.Request sample

Product profile

Customization

Available

Warranty

18 Months

OEM/ODM Service

Yes

Model NO.

Sk33231/33251

Channels

Three

Max Power

342W

Display

LED

Display Digits

Auto Switch of Serial and Parallel

Yes

Transport Package

Carton Package

Specification

225*128*290mm/225*128*320mm

Trademark

Suin

Origin

China

HS Code

8543209090

Production Capacity

30000 Set/Year

Key features

High Power Output: Maximum power reaches up to 342W with three independent output channels.

Precise LED Display: 4-digit LED display shows voltage, current, and power simultaneously.

OEM/ODM Service: Supports customized OEM and ODM services for specific requirements.

Auto Switch Function: Features automatic switching between serial and parallel modes.

Easy Operation: Designed with fewer buttons for simplified and user-friendly operation.

USB Charging Interface: Includes a 5V 1A USB charging interface for convenient device charging.

Low Ripple and Noise: Voltage ripple and noise are kept below 1mVrms for stable performance.

Compact Dimensions: Compact size of 225*128*290mm or 320mm, weighing 8-9KGs.

Company profile

Shijiazhuang Suin Instruments Co., Ltd.

Hebei, China

Business Type: Manufacturer/FactoryExport Year: 2008-09-02Nearest Port: Beijing, Tianjin, ShanghaiAverage Response Time: ≤2.08hTerms of Payment: T/T, PayPalInternational Commercial Terms(Incoterms): FOB, CFR, CIF, CIP, CPT, FCA, EXW

AI-Powered supplier vetting

SummaryShijiazhuang Suin Instruments Co., Ltd. is a China-based manufacturer of test and measurement instruments, operating since 1990 with 95 employees and a stated manufacturing area of approximately 11,000–12,000 square meters. The supplier reports ISO9001 certification, CE and RoHS approvals for most products, two production lines, annual capacity of up to 30,000 sets, and lead times within 15 working days in both peak and off-peak periods. Its product range includes signal generators, spectrum analyzers, programmable power supplies, digital multimeters, power quality analyzers, and related testing systems. Evidence indicates established R&D and engineering resources, export capability, and recognized technical centers. However, the provided information does not substantiate specific after-sales performance, customer cases, financial strength, or completed customization projects.

Supplier typeThe supplier is explicitly identified as a manufacturer and limited company based in Hebei, China. Its stated business scope and product listings cover test and measurement instruments, electrical products, software, and related systems.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate, while its description also states ISO9001:2000 certification and CE and RoHS approval for most products. This provides explicit evidence of quality-system certification and product compliance coverage, although the slices do not identify which specific products hold each approval.

R&D capabilityThe supplier explicitly conducts R&D and has received recognition including high-tech enterprise status, industrial design centers, an academician workstation, and an engineering research center. It also reports 25 years of R&D engineer experience and an electronics-instrument technical center, providing strong evidence of established innovation resources.

Production capacityThe supplier reports an approximately 11,000–12,000 square meter operating or manufacturing area, an SMT production line, two production lines, annual capacity of up to 30,000 sets, and order lead times within 15 working days in both peak and off-peak seasons. These stated facilities, capacity, and lead-time data support a positive assessment of production capability.