1. Key Technical Parameters

• Rated Current: 150 A (100 A and 200 A specifications optional)
• Rated Voltage: 24 V DC (compatible with 5 V DC)
• Dimensions: 19 inches (approximately 482 mm) in width, 2 U (approximately 88 mm) in height
• Mounting Method: DIN rail (with IP20 protection class)
• Circuit Breaker Slots: 18 independent circuit breaker slots (1–2 Mini-MCCBs can be installed per slot)
• Communication Interfaces: Supports Modbus RTU, RS-485, and Ethernet (optional)
• Safety Functions:Operating Temperature: –20 °C ~ +55 °C
  • SIL 3 / PL e certification
  • Built-in self-test, short-circuit/overcurrent protection
  • Power failure detection and safety shutdown signal output
• Environmental Adaptability: Dust-proof, moisture-proof, compliant with IP20, suitable for harsh industrial sites

2. Product Features

• High Reliability: Adopts fanless heat dissipation and all-metal housing design to reduce failure rates.
• Modular Structure: Independent circuit breaker slots allow flexible addition or reduction based on on-site requirements.
• Safety Level: Complies with IEC 61508 SIL 3, meeting safety requirements for high-risk processes.
• Easy Maintenance: Front-end plug-and-play circuit breaker design enables quick inspection and replacement.
• Strong Compatibility: Can be directly connected to the safety bus of platforms such as HIMA SIS-3, SILworX, and ELOP II.
• Multiple Communication Options: Provides dual channels of Modbus RTU and Ethernet for convenient remote monitoring and diagnosis.

3. Structure and Composition

• Chassis: 19-inch DIN rail-mounted metal chassis with 18 reserved circuit breaker slots inside.
• Power Module: 24 V DC main power input, equipped with voltage stabilization and overvoltage protection internally.
• Circuit Breaker Slots: Each slot is fitted with a replaceable Mini-MCCB (rated 150 A) and has a status indicator light.
• Communication Board: Optional Modbus RTU/RS-485 or Ethernet communication board, featuring a plug-and-play design.
• Safety Interfaces: SAFE-STOP output and LOSS-OF-POWER input.
• Terminal Blocks: High-current terminal blocks with screw crimping for easy on-site wiring.

4. Installation and Maintenance Points

Pre-Installation Inspection

1. Confirm the chassis is intact without collision or deformation.
2. Check if the fixing screws of the DIN rail are tightened.

Wiring Requirements

1. Connect the power supply, load, and communication lines according to the wiring diagram in the product manual.
2. Use high-current terminals compliant with IEC 60309 standards and ensure the screws are tightened in place.

Commissioning Steps

1. Conduct insulation resistance testing before power-on.
2. Read the module’s self-test status via the HIMA safety bus or Modbus, and confirm all circuit breakers are in the “closed” state.

Daily Maintenance

1. Inspect the wear of circuit breaker contacts every 6 months and replace them if necessary.
2. Regularly clean the dust inside the chassis to keep the heat dissipation channels unobstructed.
3. Record operating parameters such as current and temperature through the HIMA monitoring software to provide early warning of abnormalities.