HIMA B5230

B5230 is a 9-inch 5U compact safety control system rack kit of the H51q-M system from German HIMA. It belongs to the SIL3 level high availability safety control platform and is suitable for small and medium-sized SIS systems. It is a compact version of B5231 (19 inches).

Basic Information

Model: B5230 (H51q-M, Compact Type)

Brand/ Series: HIMA / H51q (QMR Quadruplex Architecture)

Type: System Rack Mount Kit (9-inch Narrow Body)

Safety Level: SIL3, Cat.4, PL e (TÜV Certified, IEC 61508)

Positioning: H51q Compact Rack Series, 9-inch Width, Suitable for Space-Constrained Scenarios

Compatible Models: B5231 (19-inch Standard Rack, Functionally Equivalent Wide Body Version)

Rack body

Specification: 9-inch narrow form factor, 5U height (approximately 222mm) × 248mm deep

Structure: Integrated cable trough, cooling fan, dedicated backplane, compatible with H51q redundant bus

Installation: 9-inch cabinet fixed (compatible with 19-inch cabinet adapter)

Weight: Approximately 3.5kg (compact lightweight design)

Standard core configuration (redundant architecture)

1 × 9-inch 5U rack: includes cooling fan assembly and redundant bus backplane

2 × F8650A: redundant CPU module (QMR quadruplexed, dedicated for H51q)

2 × F7130A: redundant power module (24VDC wide voltage, no single point failure)

I/O capacity: Up to 7 I/O modules (compact, suitable for small systems)

Diagnostic module: Integrated fan and power failure monitoring, supports online alarms

Core parameters

Operating voltage: 24VDC (±15%, redundant power supply)

Power consumption: Approximately 80W (full redundancy, lower than 19-inch models)

Operating temperature: 0°C ~ +60°C (industrial wide temperature, suitable for harsh environments)

Bus architecture: H51q dedicated redundant system bus (QMR architecture, high reliability)

Protection level: IP20

Certifications: TÜV, CE, SIL3, ATEX (optional)

Response time: ≤0.05ms (high-speed redundant processing)

Key features

9-inch compact narrow form factor: saves cabinet space, suitable for small control cabinets / on-site explosion-proof boxes

QMR quadruplexed redundancy: CPU + power dual redundancy, no single point failure, availability 99.999%

H51q native compatibility: seamless integration into H51q platform, supports hot swapping and online maintenance

High integration lightweight: 5U height + 3.5kg weight, flexible installation, suitable for space-constrained scenarios

SIL3 safety certification: meets IEC 61508, suitable for ESD/BMS/FSS and other safety-critical systems

Typical applications

Small and medium-sized petrochemical plant ESD emergency shutdown system (space-constrained on-site cabinet room)

Power plant auxiliary system BMS combustion management, boiler safety control (compact safety platform)

Natural gas distribution station / valve room SIS safety instrument system (9-inch explosion-proof cabinet compatible)

Metallurgy / coal chemical small-scale high-risk process equipment SIL3 level safety control (small-scale I/O requirements)

Model comparison (B5230 vs B5231 vs B4237‑2)

B5230 (H51q‑M): 9-inch 5U, 7 I/O slots, compact redundancy, small systems

B5231 (H51q‑MS): 19-inch 5U, 13 I/O slots, standard redundancy, large systems

B4237‑2 (H41q‑HRS): 19-inch 5U, 13 I/O slots, H41q redundancy, compatible with old systems