SAK(JXB) series universal terminal blocks

The wiring is made of pure copper material, which has high thickness, sufficient weight, and strong conductivity. The shell is made of high-quality insulating flame-retardant material, with high temperature resistance, long life, and reliable security.

Additional information

Place of Origin

Zhejiang,China

Connection Method

Screw Connection

Color

Beige, grey

Mounting

Din rail

Material of Shell

Nylon PA66

Metal Material

brass screw metal

SAK-2.5EN

SAK-2.5EN

Model
SAK-4EN
Special color
Beige
Rated Current
32A
Voltage
800V
Length/Width/High
42mmx46mmx6.5mm
Wire Diameter
0.2-2.5 mm²
Casing material
PA66

SAK-4EN

SAK-4EN

Model
SAK-4EN
Special color
Beige
Rated Current
32A
Voltage
800V
Length/Width/High
42mmx46mmx6.5mm
Wire Diameter
0.2-4mm²
Casing material
PA66

SAK-6EN

SAK-6EN

Model
SAK-6EN
Special color
Beige
Rated Current
41A
Voltage
800V
Length/Width/High
42mmx46mmx8mm
Wire Diameter
0.2-6mm²
Casing material
PA66

SAK-10EN

SAK-10EN

Model
SAK-10EN
Special color
Beige
Rated Current
57A
Voltage
800V
Length/Width/High
42mmx46mmx10mm
Wire Diameter
0.2-10mm²
Casing material
PA66

SAK-16EN

SAK-16EN

Model
SAK-16EN
Special color
Beige
Rated Current
76A
Voltage
800V
Length/Width/High
50mmx52mmx12mm
Wire Diameter
0.5-16mm²
Casing material
PA66

SAK-25EN

SAK-25EN

Model
SAK-25EN
Special color
Beige
Rated Current
100A
Voltage
800V
Length/Width/High
50mmx52mmx15mm
Wire Diameter
10-25mm²
Casing material
PA66

SAK-35EN

SAK-35EN

Model
SAK-35EN
Special color
Beige
Rated Current
125A
Voltage
800V
Length/Width/High
58mmx60.5mmx18mm
Wire Diameter
10-35mm²
Casing material
PA66

SAK-75-95

SAK-75-95

Model
SAK-75-95
Special color
Beige
Rated Current
232A
Voltage
800V
Length/Width/High
83mmx97mmx25mm
Wire Diameter
25-90mm²
Casing material
PA66

DK-4Q

DK-4Q

Model
DK-4Q
Special color
Beige
Rated Current
32A
Voltage
500V
Length/Width/High
55mmx60mmx6mm
Wire Diameter
0.2-4mm²
Casing material
PA66

SAK-RD

SAK-RD

Model
SAK-RD
Special color
Beige
Rated Current
6.3A
Voltage
500V
Length/Width/High
58mmx44mmx8.3mm
Wire Diameter
0.2-4mm²
Casing material
PA66

SAK-WTL-6/1

SAK-WTL-6/1

Model
SAK-WTL-6/1
Special color
Beige
Rated Current
41A
Voltage
500V
Length/Width/High
65mmx48.5mmx8mm
Wire Diameter
0.2-6mm²
Casing material
PA66

JXB-4/15

JXB-4/15

Model
JXB-4/15
Special color
Beige
Rated Current
32A
Voltage
800V
Length/Width/High
42mmx46mmx8mm
Wire Diameter
0.2-4mm²
Casing material
PA66

EK-2.5

EK-2.5

Model
EK-2.5
Special color
Yellow-Green
Length/Width/High
56mmx40mmx6mm
Voltage
800V
Wire Diameter
0.2-2.5mm²
Casing material
Nylon PA66
Guide material
Brass
Adaptive guide rail
35mm guide rail

EK-4

EK-4

Model
EK-4
Special color
Yellow-Green
Length/Width/High
56mmx40mmx7mm
Voltage
800V
Wire Diameter
0.2-4mm²
Casing material
Nylon PA66
Guide material
Brass
Adaptive guide rail
35mm guide rail

EK-6

EK-6

Model
EK-6
Special color
Yellow-Green
Voltage
800V
Length/Width/High
56mmx40mmx9mm
Wire Diameter
0.2-6mm²
Casing material
Nylon PA66
Guide material
Brass
Adaptive guide rail
35mm guide rail

EK-10

EK-10

Model
EK-10
Special color
Yellow-Green
Voltage
800V
Length/Width/High
56mmx40mmx10mm
Wire Diameter
0.5-10mm²
Casing material
Nylon PA66
Guide material
Brass
Adaptive guide rail
35mm guide rail

EK-16

EK-16

Model
EK-16
Special color
Yellow-Green
Voltage
800V
Length/Width/High
56mmx50mmx12mm
Wire Diameter
0.5-16mm²
Casing material
Nylon PA66
Guide material
Brass
Adaptive guide rail
35mm guide rail

EK-35

EK-35

Model
EK-35
Special color
Yellow-Green
Voltage
800V
Length/Width/High
56mmx55mmx16mm
Wire Diameter
10-35mm²
Casing material
Nylon PA66
Guide material
Brass
Adaptive guide rail
35mm guide rail

Why Choose Shengling for Your SAK Series Terminal Block Solutions?

Zhejiang Shengling has built a strong reputation in terminal block manufacturing by focusing on reliability, practical design, and consistent performance in industrial applications.

     Optimized DIN Rail Integration: The SAK series is fully compatible with standard DIN rails, ensuring secure mounting and efficient installation across control panels and electrical systems.

     Flexible Identification & Organization: With multiple color options available, the SAK terminal blocks help streamline wiring management, making system layout clearer and maintenance more efficient.

     High Current Performance: Rated up to 32A, the SAK series is engineered to handle demanding electrical loads, making it ideal for heavy-duty industrial environments.

     Durable Material Construction: Manufactured with high-quality copper conductors and PA66 insulation, these terminal blocks deliver excellent conductivity, mechanical strength, and long-term durability.

     Efficient Connection Design: The user-friendly structure enables faster wiring, reducing installation time while maintaining secure and stable connections.

Shengling’s SAK series combines robust engineering with practical functionality, providing dependable electrical connection solutions for a wide range of industries.

SAK Core Structure:

Insulated Shell: Typically made of flame-retardant nylon or PA66-type materials, used to secure internal metal components and provide insulation.

Conductive Metal Components: The core internal conductive path, usually made of copper or tin-plated copper, is responsible for current conduction.

Frame-type Screw Crimping Mechanism: This is a key feature of SAK; after the wire is inserted, the crimping frame clamps the wire under the action of the screw.

Screw and Clamping Plate: The screw provides clamping force, and the clamping plate/frame presses the wire onto the conductor, forming a stable contact.

Mounting Feet/Rail Clips: For mounting on TH35/NS35 DIN rails.

Precision Craftsmanship & Superior Materials 1

What is the wiring method for SAK terminal blocks?

SAK terminal blocks are generally spring-loaded/screw-pressed connectors.

The core steps are: after stripping the wire, insert the wire all the way in, and then use a screwdriver to tighten the internal clips to firmly hold the wire in place. Your picture shows this method.

Wiring Steps:

First, strip the insulation from the wire end to expose a suitable length of copper wire.

Insert the wire into the terminal hole, pushing it all the way in.

Use a screwdriver to rotate the clamping mechanism, pressing the internal clamping plate/jaw all the way in.

Once you’ve confirmed the wire is secure, remove the screwdriver.

Precision Craftsmanship & Superior Materials 2

Detailed wiring steps for SAK terminal blocks

Fast, Safe & Reliable Wiring in 4 Simple Steps

Quick Preparation
Strip the wire and insert it into the terminal — no special tools required, saving you time on every connection.
Effortless Opening
Press down the clamp with a screwdriver to instantly create space, making installation smooth and hassle-free.
Secure Insertion
Push the wire fully into place to ensure optimal conductivity and a stable electrical connection.
Reliable Locking
Tighten the clamp to firmly secure the wire — delivering a vibration-resistant, safe, and long-lasting connection.

How to Maintain Terminal Blocks

Regular Inspection

  • Regularly inspect terminal blocks for signs of wear, corrosion, or loose connections.

Clean Terminal Blocks Regularly

  • Use a soft brush and compressed air to clean terminal blocks and remove any dirt, dust, or debris that may accumulate on the contact points.

If Any Loose Connection Is Found

  • If any connection becomes loose, use a screwdriver to tighten the screws to the manufacturer’s recommended torque value. This helps ensure a safe and reliable electrical connection.

Check for Overheating

  • Inspect terminal blocks for signs of overheating, such as discoloration or deformation. Overheating may be caused by excessive current or poor contact resistance, and should be addressed promptly to prevent further damage.

Always Use Properly Sized Terminal Blocks

  • Be sure to select the correct size and type of terminal block according to the application requirements. Using undersized terminal blocks may lead to overheating, poor contact, and other issues.

Troubleshoot Faulty Connections

  • If a faulty connection occurs, check the wiring for short circuits, open circuits, or incorrect positioning. Use a multimeter or other diagnostic tools to identify the root cause of the problem.

Follow the Manufacturer’s Guidelines

  • Always follow the terminal block manufacturer’s instructions for installation, operation, and maintenance to ensure safe and reliable performance.
 

SMART TERMINAL SOLUTIONS

Empowering Electrical Connections With Innovation & Efficiency

Customized for R&D

  • Functional upgrades and structural optimizations
  • Dedicated mold design and rapid prototyping
  • Multi-scenario compatibility engineering

Certification and Support

  • International Compliance Documentation Guidance
  • Testing Organization Coordination and Standards Interpretation
  • Technical Documentation Localization

Flexible delivery

  • Finished Product/SKD Supply Options
  • Trial Order Verification Support
  • Priority Logistics from Key Ports

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