Electrical testing and electrical measurement test accessories

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A wide range of products is offered with a safe design for contact protection that complies with EC international standards, available in different shapes, lead lengths, and colors.

This catalog introduces the test accessories for electrical testing and measurement handled by Stoburi Co., Ltd. These test accessories, equipped with contact protection, comply with the international safety standard IEC/EN 61010-031, allowing for safe operations in the field. We offer a wide range of products not only for operators in laboratories (O, CAT III) but also for electrical engineers, electricians, and utility company staff (CAT III, IV). Furthermore, our products are also adopted as standard items by major manufacturers of electrical measuring instruments worldwide with proven track records in this field. 【Features】 - Safety specifications compliant with international safety standard IEC61010 for O to CAT IV - Usable at high voltages of CAT IV 1000V / CAT III 1500V / O 30VAC 60VDC 5000V - Equipped with spring-shaped contact elements that maintain very low contact resistance and high durability for insertion and removal - A rich product lineup of over 10,000 varieties, including color and cable length options - Custom orders are also available - Extremely flexible cables that can be used in limited spaces

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basic information

We offer a wide range of safe test accessories with contact protection features that enable the execution of safe and accurate tests and measurements. Our product lineup caters to ultra-low voltage applications in electrical laboratories and training facilities, as well as products for maintenance and repair or service technicians at power companies. Products constructed from MULTILAM contact technology, surface plating, and various insulating materials are reliable products that withstand the highest quality and safety standards, even in long-lasting connection cycles. 【Product Lineup】 - φ1mm, φ2mm, and φ4mm test leads - Plugs for φ1mm, φ2mm, and φ4mm assemblies - φ1mm, φ2mm, and φ4mm sockets - φ2mm and φ4mm jumper plugs - φ2mm and φ4mm test probes - φ2mm and φ4mm test clips - φ2mm and φ4mm test adapters - φ4mm Kelvin test leads

Price range

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Delivery Time

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Applications/Examples of results

【Case Studies】 ● Electrical Measuring Instruments - Oscilloscope - Data Logger - Multimeter - Battery Analyzer - Power Analyzer (Power Quality Analyzer) - Insulation Resistance Tester - Relay Protection Tester (Relay Tester) - Lightning Surge Testing Equipment - EMC Testing Equipment - Rogowski Coil - PV-related Testers (I-V Curve Tracer, String Tracer) - Electrostatic Checker - Electrical Discharge Device - Diagnostic Tester - Power Supply - Mass Spectrometer ● Test Bench - Breakout Box - Pin Board - Loop Box - Various testing jigs and equipment for production facilities ● Medical Devices - Multiplexer - Blood Analyzer ● Industrial Equipment - Power Supply - Generator - Distribution Board - HVDC (High Voltage Direct Current Transmission Equipment)

Detailed information

Electrical measuring instruments We can provide a wide range of products such as sockets, test leads, test probes, and test clips for all types of measuring instruments including oscilloscopes, data loggers, and multimeters for manufacturers and users of electrical measuring instruments.
Oscilloscope, data logger We provide passive high-frequency test probes (HF probes) and accessories used for measuring high-frequency waveforms, as well as insulated BNC plug connectors with contact protection features that can be safely used at high voltages, test leads, test clip adapters, and more.
Multimeter In the case of multimeters, we offer products such as safe test leads with contact protection features, sockets, test probes, and test clips.
Power Analyzer (Power Quality Analyzer) We provide safe test leads, sockets, test probes, and test clips with contact protection features.
Training equipment, educational training circuits We offer a wide range of products for training systems and educational equipment in the fields of technology and engineering. This includes test leads of φ2mm and φ4mm, sockets, and jumper plugs, all of which meet the highest standards of reliability and safety. Additionally, you can choose from a rich variety of color options for each product.
Test benches, inspection jigs, electrical testing equipment We can provide safe products including sockets, jumper plugs, test leads, test plugs, and test probes for test benches, starting with breakout boxes in the fields of automotive, aerospace, and railways.
Utilities (Electrical construction and maintenance services for power generation, transformation, and distribution facilities in public utility services) In the field of power generation and distribution, we have developed dedicated CATIV products for testing and measuring equipment. This includes test adapters, test leads, test probes, and test clips, all of which meet the highest standards and approvals according to IEC international standards for safety and reliability.
Installer (electrical work, electrical engineering services such as construction, installation, and maintenance services in commercial and residential buildings, industrial applications, etc.) In addition to test leads, test probes, and test clips, cables with various insulating materials and insulation layers are also available.
Schools, universities, educational institutions, laboratories (labs) Schools and universities in the field of technology require safe test accessories to educate and train students. Test plugs, test probes, test adapters, test leads and sockets, and jumper plugs are available in various lead lengths and a wide range of color options.

Line up（5）

Model number	overview
23.3000-**	Product Name: SLB4-F Product Overview: Safety socket for panel mount for φ4mm diameter Specifications: 1000 V, CAT III / 24 A Terminal Shape: Flat tab terminal / 4.8 mm × 0.8 mm (Faston terminal) Plating Material: Au
23.3020-**	Product Name: SLB4-G Product Overview: Safety socket for panel mount for φ4mm diameter Specifications: 1000 V, CAT III / 32 A Terminal Shape: Screw terminal, solder cup Plating Material: Au
23.0330-*	Product Name: PK4-T Product Overview: Terminal terminal for φ4mm diameter (binding post) Specifications: 30 VAC / 35 A, 60 VDC / 35 A Plating Material: Ni
24.0157-*	Product Name: SAGK4-K Product Overview: Small crocodile grip Specifications: 300 V, CAT II / 15 A Plating Material: Ni
66.9575-*	Product Name: XDK-1033 Product Overview: Large diameter dolphin clip Specifications: 1000 V, CAT III / 32 A Plating Material: Ni