KSI240D10-L 10A 240VAC SSR 4-32VDC Zero Cross Solid State Relay

The KSI240D10-L Solid State Relay (SSR) is a robust industrial-grade switching solution designed for reliable control of AC loads in demanding automation and power management applications. Featuring zero-cross switching technology, this relay minimizes electrical noise, reduces inrush current stress, and extends the lifespan of connected equipment, making it ideal for industrial environments.

Part of the KSI240 series, this single-phase AC output relay is engineered to handle a wide variety of load types, including resistive, inductive, and capacitive loads. Its 4-32VDC control input allows direct interfacing with PLCs, microcontrollers, sensors, and industrial controllers, ensuring seamless integration into modern control systems.

The relay is rated for 10A continuous load current and supports load voltages from 48VAC to 280VAC, making it suitable for heating elements, lighting systems, motors, pumps, and other industrial equipment. The built-in LED status indicator provides clear visual confirmation of relay operation, simplifying troubleshooting and maintenance.

Designed for long-term reliability, the KSI240D10-L incorporates superior thermal performance and high dielectric isolation of 4000VAC RMS between input and output circuits. Optional internal protection features such as RC snubber networks, MOV surge suppression, and TVS protection help safeguard equipment against electrical transients and voltage spikes.

For enhanced installation flexibility and thermal management, the relay is compatible with the KPC-0A protective cover and KHS-1A, KHS-1B, or KHS-1C heatsinks, ensuring dependable operation under varying load conditions.

Features

• Industrial single-phase AC output Solid State Relay
• Zero-cross switching for reduced EMI and inrush current
• 10A continuous load current rating
• Wide 4-32VDC control input range
• Compatible with resistive, inductive, and capacitive loads
• LED status indicator for easy monitoring
• High dielectric strength of 4000VAC RMS
• Superior thermal performance for industrial applications
• Silent operation with no mechanical wear or contact arcing
• Optional internal RC, MOV, and TVS protection circuits
• Compatible with KPC-0A protective cover
• Compatible with KHS-1A, KHS-1B, and KHS-1C heatsinks
• Long service life and high reliability

Specifications

• Model: KSI240D10-L
• Device Type: Solid State Relay (SSR)
• Series: KSI240
• Output Type: Single-Phase AC Output
• Switching Mode: Zero Cross
• Control Voltage Range: 4-32VDC
• Load Voltage Range: 48-280VAC
• Rated Load Current: 10A
• Output Device: Triac / SCR Technology
• Dielectric Strength: 4000VAC RMS
• Status Indication: LED Indicator
• Input Type: DC Control Input
• Suitable Cover: KPC-0A
• Suitable Heatsinks: KHS-1A, KHS-1B, KHS-1C

Applications

• Industrial automation systems
• PLC-controlled machinery
• HVAC equipment
• Electric heating systems
• Lighting control systems
• Motor and pump switching
• Packaging and processing equipment
• Conveyor systems
• Temperature control systems
• General-purpose AC power switching

What's in the box
1 x KSI240D10-L 10A 240VAC SSR 4-32VDC Zero Cross Solid State Relay