Product Description
The AS2.5 is a compact and high-reliability industrial feed-through terminal block designed for safe, stable, and efficient electrical connections in control panels, automation systems, and electrical distribution boards.
It is engineered for small to medium conductor applications, making it ideal for signal wiring, control circuits, and low-to-medium power distribution in industrial environments.
The AS series is widely used in modern panel building due to its compact footprint, strong insulation properties, and vibration-resistant construction, ensuring long-term reliable performance in continuous operation systems.
Working Principle
The AS2.5 works as a pass-through electrical connector, allowing current or signals to flow from one side of the terminal to the other through an internal conductive clamp system.
When a conductor is inserted and tightened, the internal metal clamp applies consistent mechanical pressure on the wire, ensuring a stable, low-resistance electrical connection.
This prevents loosening due to vibration, thermal expansion, or mechanical stress, ensuring safe and uninterrupted electrical transmission in industrial applications.
Key Features
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Compact industrial feed-through terminal block
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Designed for small conductor wiring applications
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Strong and stable electrical connection system
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DIN rail mounting compatible design
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Flame-retardant housing material
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High vibration and shock resistance
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Low contact resistance for efficient performance
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Easy installation and wiring system
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Modular and space-saving structure
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Suitable for continuous industrial operation
Technical Specifications
General Information
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Model: AS2.5
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Product Type: Industrial Feed-Through Terminal Block
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Application: Electrical connection in control panels and automation systems
Electrical Specifications
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Rated Voltage: Up to 800V AC/DC
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Rated Current: 24A to 32A (depending on installation conditions)
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Impulse Withstand Voltage: 8kV
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Overvoltage Category: III
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Pollution Degree: 3
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Frequency: 50/60 Hz
Conductor Specifications
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Solid Conductor Range: 0.2 mm² to 4 mm²
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Stranded Conductor Range: 0.2 mm² to 2.5 mm²
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Flexible Conductor: Supported with ferrule
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Connection Type: Screw clamp feed-through system
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Wire Entry Type: Front entry wiring
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Stripping Length: 7–9 mm
Mechanical Specifications
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Mounting Type: DIN Rail 35 mm (NS 35 standard)
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Housing Material: Polyamide PA66 (Flame Retardant grade)
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Flammability Rating: UL94 V0 equivalent
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Contact Material: High-conductivity copper alloy
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Design Type: Compact modular structure
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Color: Grey / Blue industrial standard
Environmental Specifications
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Operating Temperature: -40°C to +85°C
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Continuous Operating Temperature: Up to +70°C
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Storage Temperature: -40°C to +90°C
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Humidity Resistance: Suitable for industrial environments
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Vibration Resistance: High resistance for machinery applications
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Corrosion Resistance: Standard industrial protection level
Safety Features
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High dielectric insulation strength
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Flame-retardant housing material
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Secure screw clamp connection system
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Short-circuit resistant design
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Finger-safe terminal structure concept
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IEC-style industrial safety compliance
Design Features
The AS2.5 is designed with a compact and efficient structure, making it ideal for high-density wiring in electrical control panels.
Its screw clamp mechanism ensures strong mechanical grip and stable electrical contact pressure, even under vibration or continuous industrial load conditions.
The compact size allows engineers to save space inside control cabinets while maintaining high wiring reliability and safety standards.
Applications
The AS2.5 is widely used across industrial and commercial electrical systems:
1. Industrial Automation
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PLC control panels
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Machine automation systems
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Robotics wiring systems
2. Electrical Distribution
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Control cabinet wiring
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Sub-panel electrical connections
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Power distribution boards
3. Manufacturing Industry
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Production line machinery
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Motor control systems
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Industrial equipment wiring
4. Infrastructure Systems
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HVAC control systems
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Building automation systems
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Utility control panels
5. Electrical Engineering Systems
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Signal wiring circuits
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Instrumentation systems
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Control circuit distribution
Advantages
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Compact design saves panel space
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Ensures stable and reliable electrical connection
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Reduces wiring errors and maintenance issues
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High durability in industrial environments
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Easy installation and replacement
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Resistant to vibration and mechanical stress
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Long operational life
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Suitable for modern automation systems
Installation Guidelines
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Mount on standard 35 mm DIN rail
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Ensure proper conductor stripping length
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Tighten screws with recommended torque
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Avoid exceeding rated conductor capacity
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Maintain proper spacing in control panels
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Use end clamps for secure installation
Maintenance Guidelines
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Periodically check screw tightness
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Inspect for dust or contamination
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Ensure proper panel ventilation
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Replace damaged terminals immediately
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Suitable for low-maintenance operation
Engineering Summary
The AS2.5 is a compact and reliable industrial feed-through terminal block designed for safe electrical wiring in control panels and automation systems. Its strong construction, high insulation performance, and space-saving design make it ideal for modern industrial applications requiring efficiency, safety, and durability.
