B4235 is a 19-inch 5U system rack assembly kit for the German HIMA (Black Horse) H41q/H51q series safety system, used for building a SIL3-level redundant safety control system.

Basic Information

Model: B4235

Brand: HIMA (Black Horse)

Series: H41q / H51q Safety Control System

Type: Complete System Rack Assembly Kit

Safety Level: SIL3, Cat.4, PL e

Rack body

Structure: 19-inch standard cabinet, 5U height (approximately 222 mm)

Material: Metal rack, integrated cable trough, hinged label positions

Installation: Standard 19-inch cabinet fixation

Weight: Approximately 1.26 kg

Standard equipment included

1 × K1407A: 5U system rack (with cable trough)

2 × F8652: Central processing module CU (redundant)

2 × F7130A: Power module 24/5 VDC (redundant, 5V in parallel)

2 × Z6011: Power decoupling and fuse module

1 × Z6012: Fan module (with operation / fuse monitoring)

2 × Z6013: WD signal power decoupling and fuse module

1 × Z6007/Z6017: Jumpers (depending on configuration)

Performance and environment

Operating voltage: 24 VDC (redundant power supply)

Operating temperature: 0°C ~ +55°C

Protection level: IP20

System capability: Supports redundant CPU, up to 13 I/O modules

Certifications: TÜV, CE, SIL3

Main features

Overall redundancy: CPU, power supply, bus all redundant, meeting SIL3 safety requirements

Integrated kit: Rack, core module, fan, power distribution fully equipped, ready to use upon opening

High integration design: 5U height integrates complete safety system, saving cabinet space

Complete self-diagnosis: Real-time fault monitoring of fans, power supply, CPU, I/O circuits

Industrial-grade reliability: Wide temperature operation, strong anti-interference, suitable for high-risk environments such as petrochemical and power industries

Typical applications

Petroleum and chemical ESD emergency stop system

Power plant / power station BMS combustion management, FSS furnace safety system

Natural gas / long-distance pipeline SIS safety instrumented system

SIL3-level safety control platform for high-risk process units