CSB3/N3ULR is a red stud type feed through terminal block with long stud design specially developed for industrial electrical applications where lug-based conductor termination, secure mechanical conductor locking, and reliable current transfer under vibration-prone conditions are required. In switchboards, electrical control panels, PLC cabinets, machine control systems, industrial automation assemblies, and power distribution systems, certain wiring applications require a stronger and more mechanically secure conductor connection than standard clamp terminals.
The CSB3/N3ULR is specifically used where conductors terminated with ring lugs or fork lugs need to be mounted securely on an M3 stud connection. The long stud design provides better conductor accessibility and easier tightening during installation, especially in compact panel layouts.
Unlike standard clamp terminals, this terminal block offers a stud-based heavy-duty conductor locking mechanism, making it ideal for applications where electrical connections are subjected to continuous vibration, mechanical movement, or industrial stress.
The red housing also provides an additional visual identification benefit and is commonly used for warning circuits, emergency control sections, dedicated power circuits, and critical circuit grouping in industrial electrical panels. This helps technicians identify special circuit sections quickly during maintenance and troubleshooting.
The CSB3/N3ULR operates using a stud-based feed through conductor connection system, where a conductor fitted with a ring lug or fork lug is mounted over the M3 long stud and securely tightened using a nut.
Its working design provides:
The long stud barrel design improves installation convenience while maintaining strong mechanical conductor retention. This makes the terminal block highly suitable for heavy-duty industrial wiring systems where conductor security is critical.
The red housing improves visual recognition of dedicated or critical terminal sections inside industrial electrical panels.
Safety advantages include:
This helps maintenance engineers identify important conductor sections quickly and safely.
Red terminal blocks are commonly used for:
This improves organized electrical panel management.
The CSB3/N3ULR is manufactured using flame-retardant polyamide insulated housing with industrial-grade conductive stud connection hardware, designed for demanding industrial electrical environments.
Construction advantages include:
Its rugged construction ensures dependable electrical performance in industrial heavy-duty wiring applications.
Using CSB3/N3ULR improves electrical panel layout by creating secure and organized lug-based conductor connections.
Benefits include:
| Parameter | Specification |
|---|---|
| Product Code | CSB3/N3ULR |
| Product Type | Stud Type Feed Through Terminal Block (Long Stud) |
| Color | Red |
| Rated Voltage | 1000 V / 1100 V |
| Rated Current | 41 A |
| Conductor Capacity | 0.5 – 6 mm² |
| AWG Range | 22 – 8 AWG |
| Stud Size | M3 |
| Connection System | Stud Connection |
| Operation | Screwdriver / Nut Driver |
| Tightening Torque | 0.5 Nm |
| Mounting Style | DIN 32 / DIN 35 / DIN 35-15 Rail |
| Wire Entry | Side Entry |
| Housing Material | Flame Retardant Polyamide |
| Rated Surge Voltage | 8 kV |
| Pollution Degree | 3 |
| Length | 49 mm |
| Thickness | 9 mm |
| Electrical Function | Feed Through Terminal Block |
| Mechanical Strength | High |
| Industrial Use | PLC Panels, Switchboards, Heavy Duty Wiring |
Provides easier conductor access during installation.
Strong stud locking for heavy-duty conductor termination.
Supports stable current transfer.
Ideal for vibration-prone industrial wiring.
Red housing supports warning circuit identification.
Built for demanding industrial environments.
Improves secure and organized panel layouts.
CSB3/N3ULR is widely used in:
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