Product Description
The CPST1.5/4 is a compact and high-performance industrial interface relay module designed for signal switching, electrical isolation, and safe interfacing between control systems and field devices in industrial automation applications.
This module is widely used in PLC panels, machine control systems, process automation units, electrical control cabinets, and industrial signal distribution systems, where safe switching and signal isolation are essential.
The CPST1.5/4 acts as an interface between low-power control circuits (PLC outputs, sensors, controllers) and field-side devices, ensuring safe and stable signal transfer while protecting sensitive electronics from electrical surges, voltage spikes, and noise.
Its compact DIN rail mounting design allows quick installation and efficient panel space utilization, making it ideal for modern automation and control systems.
Manufactured using high-grade flame-retardant materials and reliable internal switching components, the CPST1.5/4 delivers stable performance, long service life, and low maintenance operation in demanding industrial environments.
Key Features
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Compact industrial interface relay module
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Safe signal switching and electrical isolation
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DIN rail mounting compatible design
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Reliable switching performance
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LED status indication for monitoring
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Flame-retardant durable housing
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Low power consumption
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High resistance to electrical noise and interference
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Easy installation and maintenance
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Suitable for continuous industrial operation
Technical Specifications
General Information
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Model: CPST1.5/4
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Product Type: Industrial Interface Relay Module
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Application: Signal switching and electrical isolation in automation systems
Electrical Specifications
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Rated Input Voltage: Variant dependent (as per relay configuration)
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Operating Voltage Range: Industrial control signal compatible
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Frequency: 50/60 Hz
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Power Consumption: Low power interface module
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Output Type: Relay switching contact output
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Contact Configuration: 4-way interface relay module
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Switching Voltage: Up to 250V AC / 30V DC
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Switching Current: 1A to 2A (depending on application)
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Isolation Strength: High dielectric isolation between input and output
Input / Output Specifications
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Input Type: PLC / control signal compatible
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Output Type: Dry contact relay output
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Signal Type: Switching / isolation interface
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LED Indicator: Yes (status indication)
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Protection: Noise and surge suppression design
Mechanical Specifications
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Mounting Type: DIN Rail 35 mm standard
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Housing Material: Polyamide PA66 (Flame Retardant)
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Flammability Rating: UL94 V0 equivalent
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Connection Type: Screw clamp terminal system
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Design Type: Compact modular relay interface
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Color: Industrial grey / blue housing
Environmental Specifications
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Operating Temperature: -20°C to +60°C
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Storage Temperature: -40°C to +85°C
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Humidity Range: 5% to 95% non-condensing
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Vibration Resistance: High industrial grade
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Pollution Degree: 2
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Installation Environment: Indoor control panel use
Safety Features
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High electrical isolation between input and output
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Surge and electrical noise resistance
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Flame-retardant housing material
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Safe low-voltage control interfacing
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Stable continuous-duty operation
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Industrial safety compliant design
Applications
The CPST1.5/4 is widely used in:
Industrial Automation
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PLC input/output interfacing
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Machine automation systems
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Process control systems
Electrical Control Panels
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Signal switching in control cabinets
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Motor control systems
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Distribution panel automation
Manufacturing Industry
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Production line automation
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Sensor switching systems
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Equipment control systems
Infrastructure Systems
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HVAC control panels
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Building automation systems
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Utility control systems
Monitoring & Safety Systems
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Alarm circuits
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Signal monitoring systems
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Protection control applications
Advantages
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Provides safe signal isolation
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Protects PLCs and control electronics
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Improves system reliability and uptime
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Compact design saves panel space
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Easy installation and replacement
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High durability in industrial environments
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Long service life with low maintenance
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Suitable for modern automation systems
Installation Guidelines
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Install on standard 35 mm DIN rail
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Ensure correct control voltage connection
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Tighten all terminal connections properly
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Avoid exceeding rated switching capacity
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Maintain proper ventilation inside control panel
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Use protective devices where required
Maintenance Guidelines
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Periodically inspect terminal tightness
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Monitor LED status indication
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Keep panel free from dust and moisture
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Replace module if abnormal switching occurs
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Ensure proper ventilation for long-term operation
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Designed for low-maintenance industrial use
Engineering Summary
The CPST1.5/4 is a reliable and compact industrial interface relay module designed for safe signal switching and electrical isolation in automation systems. Its compact design, reliable switching performance, and high safety standards make it ideal for industrial control panels and signal interfacing applications.
