What is the warranty or quality guarantee?

We provide a pre-production sample before mass production and a final inspection before shipment, with a 24-hour resolution for quality complaints.

What is the rated voltage of the terminal block?

The rated voltage is 750V for most models, with some high-capacity models supporting up to 1000V.

High-Quality Mrk Series 50mm² Terminal Block for Reliable Screw Connection

Name: High-Quality Mrk Series 50mm² Terminal Block for Reliable Screw Connection
Brand: Zhejiang Johnn Electrical Co., Ltd
SKU: 1989123311

Zhejiang, ChinaZhejiang Johnn Electrical Co., Ltd

US$0.715

10 pieces

Sample price:US$0.72/piece.Request sample

Product profile

Application

Conduct Electricity, Transmission of Electrical Signals

Character

Environmental Protection

Species

Terminal

Model NO.

MRK 50

Production Process

Injection Molding

Shape

Square

Interface Type

AC/DC

Brand

Johnn

Modelnumber

Mrk Series Terminal Block

Selling Units

Single Item

Sample

If You Need Sample,We Can Supply for You.

Product Name

Mrk Series Terminal Block

Rated Voltage

Low Pressure

Package

Carton

Voltage

750V

Current

150A

Transport Package

Carton

Specification

MRK Series Terminal Block 50

Trademark

JOHNN

Origin

Zhejiang, China

Key features

Flame-Retardant Housing: Constructed with durable PA66 or PC material for excellent heat resistance.

DIN Rail Mounted: Standard 35mm DIN rail installation for quick and secure mounting.

High Current Capacity: Handles up to 150A current with stable screw-type clamping technology.

Modular Design: Expandable side-by-side connection for multi-pole configurations.

Global Certifications: Products certified with CE, ROHS, TUV, and CB standards.

Flexible Customization: Supports OEM and ODM orders for tailored product solutions.

Fast Quality Resolution: Swift 24-hour resolution commitment for any quality complaints.

Company profile

High Repeat Buyers ChoiceImporters and ExportersExhibition ExperienceQuality Assurance

Zhejiang Johnn Electrical Co., Ltd

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Flexible customization CertifiedExport Year: 3 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤4.09h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryZhejiang Johnn Electrical Co., Ltd. is a China-based limited company established in 2023 with 15 employees and a valid import/export license. It reports OEM service for well-known brands, ODM capability, and broad customization options, but has only two R&D engineers, no patents, no new products in the past year, and no available R&D audit documentation. Service-control documentation is weak: no written procedures or records were provided for supplier service assessment, corrective and preventive actions, or complaint handling. The supplier has no overseas warehouse, showroom, agent, or branch, although it has attended the 137th Canton Fair. Financial credibility cannot be assessed because the slices only identify financial-capacity years and provide no financial results or monetary data. Production capability and customer cases are also insufficiently documented.

Supplier typeThe supplier is identified as Zhejiang Johnn Electrical Co., Ltd., a Chinese limited company established on March 21, 2023, with 15 employees and an associated company. It also holds a valid import/export license, supporting its status as an operating trading/manufacturing-related business entity.

CertificationsThe provided information confirms possession of a valid import/export license. No other certifications are identified, so the assessment is limited to this license.

After-Sales capabilityAfter-sales and service governance appear weakly documented: there are no written procedures or records for complaint handling, corrective and preventive actions, or effective service-capability assessment. The supplier also has no overseas warehouse, showroom, agent, or branch, although it reports participation in the 137th Canton Fair and stated peak/off-season lead times.

R&D capabilityThe supplier reports ODM capability and CAD use, but its R&D team consists of only two engineers, no patents are reported, no new products were developed in the past year, and no R&D audit documentation is available. These facts indicate limited documented innovation depth.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also reports ODM services and OEM services for well-known brands, providing direct evidence of broad customization capability.