Product Description
The CM4SBU is a high-quality industrial feed-through terminal block designed for secure electrical connections in control panels, automation systems, and power distribution networks. It ensures stable current flow, safe wiring, and long-term reliability in demanding industrial environments.
This component is widely used in PLC panels, motor control centers, machinery wiring, and electrical enclosures, where safety and durability are essential.
Its modular DIN rail design allows quick installation, easy wiring, and efficient space utilization inside control cabinets.
Key Features
-
Industrial-grade durable construction
-
High vibration and shock resistance
-
Safe and stable electrical connectivity
-
Flame-retardant insulating housing
-
Compact modular DIN rail design
-
Low contact resistance for efficient performance
-
Easy installation and maintenance
-
Suitable for continuous industrial operation
-
Expandable modular system compatibility
-
Long service life with reliable performance
Technical Specifications
Electrical Ratings
-
Rated Voltage: Up to 800V AC/DC
-
Rated Current: 32A (depending on conductor size)
-
Impulse Voltage: 8kV
-
Overvoltage Category: III
-
Pollution Degree: 3
-
Frequency: 50/60 Hz
Conductor Range
-
Solid Conductor: 0.5 – 6 mm²
-
Stranded Conductor: 0.5 – 4 mm²
-
Flexible Conductor: Supported with ferrule
-
Wire Entry: Feed-through front entry
-
Stripping Length: 8–10 mm
Mechanical Details
-
Mounting: DIN Rail NS 35 (35 mm)
-
Connection Type: Screw clamp system
-
Housing Material: Polyamide PA66 (Flame Retardant)
-
Contact Material: Copper alloy
-
Color: Blue (BU type identification)
-
Design: Modular, stackable
Environmental Conditions
-
Operating Temperature: -40°C to +85°C
-
Continuous Use: Up to +70°C
-
Storage Temperature: -40°C to +90°C
-
Vibration Resistance: High industrial grade
-
Humidity Resistance: Suitable for industrial environments
Safety Features
-
High insulation strength
-
Flame-retardant housing material
-
Short-circuit resistant design
-
Secure screw clamp connection
-
IEC-standard industrial design compliance
Applications
-
Industrial automation systems
-
PLC control panels
-
Motor control centers (MCC)
-
Electrical distribution boards
-
Machinery wiring systems
-
HVAC control systems
-
Process control systems
-
Building automation systems
Advantages
-
Ensures safe and stable electrical connections
-
Reduces wiring failures and maintenance downtime
-
Improves panel efficiency and organization
-
High durability in harsh environments
-
Easy installation and replacement
-
Long operational life
-
Suitable for modern automation systems
Installation Guide
-
Install on standard 35 mm DIN rail
-
Ensure correct wire stripping length
-
Tighten screws with proper torque
-
Avoid overloading conductor capacity
-
Maintain proper spacing in control panels
-
Use end clamps for secure positioning
Maintenance
-
Periodic tightening check recommended
-
Keep terminals clean and dust-free
-
Inspect for overheating or damage
-
Replace if any physical wear is observed
-
Designed for low-maintenance operation
Technical Specifications
1. General
-
Model: CM4SBU
-
Product Type: Industrial Feed-Through Terminal Block
-
Application: Control panel, automation systems, electrical distribution
2. Electrical Specifications
-
Rated Voltage: 800V AC/DC
-
Rated Current: 32A
-
Impulse Withstand Voltage: 8kV
-
Overvoltage Category: III
-
Pollution Degree: 3
-
Frequency: 50/60 Hz
3. Conductor Data
-
Solid Conductor: 0.5 – 6.0 mm²
-
Stranded Conductor: 0.5 – 4.0 mm²
-
Flexible Conductor: Supported with ferrule
-
Connection Type: Feed-through (front entry)
-
Stripping Length: 8–10 mm
4. Mechanical Specifications
-
Mounting Type: DIN Rail 35 mm (NS 35)
-
Connection Type: Screw clamp system
-
Housing Material: Polyamide PA66 (Flame Retardant)
-
Contact Material: Copper alloy
-
Color: Blue (BU type)
-
Design: Modular stackable type
5. Environmental Conditions
-
Operating Temperature: -40°C to +85°C
-
Continuous Operating Temp: Up to +70°C
-
Storage Temperature: -40°C to +90°C
-
Humidity Resistance: Industrial standard
-
Vibration Resistance: High
6. Safety & Insulation
-
High dielectric strength
-
Flame-retardant housing (UL94 V0 equivalent)
-
Short-circuit resistant design
-
Safe screw clamp connection
-
IEC industrial standard design
7. Installation
-
DIN rail mounting (35 mm)
-
Screw tightening connection
-
End clamp recommended for stability
-
Standard panel wiring compatible
