Single-Phase Solid State Relays (Detachable Heatsink Type) SR1 Series

Product Overview

The SR1 Series single-phase solid state relays are engineered with a compact and versatile design, making them ideal for flexible installation across a wide range of applications. Featuring detachable heatsinks, these relays allow for easier maintenance and replacement, ensuring optimal performance and longevity. Whether used for controlling heater loads, semiconductor equipment, or motor control, the SR1 Series relays deliver reliable and stable control, making them a durable solution for demanding industrial environments.

Key Features

• Compact, Universal Design: The SR1 Series relays are designed for ease of installation, fitting seamlessly into various setups due to their compact and universal form factor.
• High Heat Dissipation: Equipped with ceramic PCB technology, these relays offer superior heat dissipation, enhancing their operational efficiency and lifespan.
• Control Options: Available with both Zero Cross Turn-on and Random Turn-on functions, providing flexibility for different application needs.
• Input Indicator: A built-in green LED indicator ensures clear visibility of the relay’s operational status.
• Detachable Heatsink: Designed for easy maintenance, the detachable heatsink allows for quick replacement, ensuring continued performance without lengthy downtimes.

Product Components

Each SR1 Series solid state relay package includes the following components:

• Solid State Relay Unit
• Instruction Manual

Technical Specifications

Input Specifications

• Rated Input Voltage:
  • 4-30 VDC
  • 90-240 VAC (50/60 Hz)
• Allowable Input Voltage Range:
  • 4-32 VDC
  • 85-264 VAC (50/60 Hz)
• Max Input Current: 18 mA
• Operate Time:
  • Zero Cross Turn-on: ≤ 0.5 cycle of load power + 1 ms
  • Random Turn-on: ≤ 1 ms
• Release Time:
  • Zero Cross Turn-on: ≤ 0.5 cycle of load power + 1 ms
  • Random Turn-on: ≤ 2 cycle of load power + 1 ms

Output Specifications

• Rated Load Voltage Range:
  • 24-240 VAC (50/60 Hz)
  • 48-480 VAC (50/60 Hz)
• Allowable Load Voltage Range:
  • 24-264 VAC
  • 48-528 VAC
• Rated Load Current: Various models are available, ranging from 10 Arms to 75 Arms.
• Peak Voltage (Non-Repetitive):
  • 600 V (standard)
  • 1200 V (Zero Cross models)
  • 1000 V (Random Turn-on models)
• Leakage Current: ≤ 10 mArms
• Output ON Voltage Drop: ≤ 1.6 V

General Specifications

• Dielectric Strength: 2500 VAC for 1 minute between input-output and input/output-case.
• Insulation Resistance: ≥ 100 MΩ at 500 VDC.
• Indicator: Green LED for input status.
• Vibration Resistance:
  • Operational: 0.75 mm amplitude at 10-55 Hz
  • Malfunction: 0.5 mm amplitude at 10-55 Hz
• Shock Resistance:
  • Operational: 300 m/s² (approx. 30 G)
  • Malfunction: 100 m/s² (approx. 10 G)
• Ambient Temperature:
  • Operating: -30 to 80°C
  • Storage: -30 to 100°C
• Ambient Humidity: 45-85% RH

Ordering Information

The SR1 Series relays can be customized according to your specific needs. The model number is structured as follows: SR1-❶ ❷ ❸ ❹-N. Below is a breakdown of the available options:

• ❶ Rated Input Voltage:
  • 1: 4-30 VDC
  • 4: 90-240 VAC
• ❷ Rated Load Voltage:
  • 2: 24-240 VAC
  • 4: 48-480 VAC
• ❸ Rated Load Current: Choose from various amperage ratings to match your load requirements.
• ❹ Function:
  • Blank: Zero Cross Turn-on
  • R: Random Turn-on

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