Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | EABT3 B9302 997009302 |
| Manufacturer | HIMA |
| Product Type | 16-Slot I/O Rack with I/O Bus Cable |
| Platform | HIMA H51 / H51q safety control system |
| Slot Count | 16 I/O module slots |
| Power | 24 VDC system supply |
| Communication | Integrated I/O-BUS cable |
| Mounting | 19-inch standard rack mount |
| Protection Class | IP40 |
| Safety Compliance | IEC 61508 SIL 3 |
| Operating Temperature | -20 °C to +60 °C |
| Typical Cable | I/O-BUS cable, approx. 0.5 m |
| Dimensions (H×W×D) | 47.8 cm × 30.5 cm × 17.8 cm |
| Weight | Approx. 3 kg |
Product Introduction
In HIMA H51/H51q safety systems, the rack is not just sheet metal. It carries the I/O bus, defines module seating, and determines whether the controller can see the I/O at all. If the backplane bus or cable is damaged, the entire I/O segment can disappear from the safety controller without a clear local fault.
The HIMA EABT3 B9302 997009302 is a 16-slot I/O rack for the H51/H51q series. It provides standardized mechanical mounting for H51/H51q I/O modules and includes an integrated I/O bus cable to link the rack to the controller or I/O bus segment. It does not contain a CPU, power supply, or I/O channels by itself. Its role is infrastructure: mechanical carrier, electrical backplane, and I/O-BUS path. In surplus markets, this part number is often mislabeled as a controller or communication card, so the full order number must be checked against the rack label and H51/H51q hardware manual.
QA/QC Transparency SOP
- Intake & Origin Verification: Confirm full designation EABT3 B9302 997009302, HIMA labeling, and serial/batch markings. Verify it is a 16-slot I/O rack, not a CPU, power supply, or I/O module.
- Mechanical Inspection: Check slot guides, backplane connectors, mounting rails, and 19-inch rack ears. Look for bent pins, cracked connectors, corrosion, or impact damage.
- I/O Bus Cable Verification: Inspect the integrated I/O-BUS cable, connector strain relief, and pin condition. A damaged bus cable can cause intermittent rack communication faults.
- Continuity & Insulation Tests: Check backplane continuity, slot-to-slot bus integrity, and insulation resistance. Do not assume a clean exterior means a healthy backplane.
- Final QC & Packaging: Record slot count, cable condition, and mechanical inspection results. Pack with protection for the backplane connectors and bus cable. For surplus units, state whether the rack was tested with compatible H51/H51q modules.
Field Engineer Gotchas
- It is a rack, not a controller. The “EABT3 B9302 997009302” designation refers to the I/O subrack with bus cable. It will not run logic, replace a CPU, or act as a communication processor.
- Surplus listings frequently misclassify it. Some listings call it a 4-channel controller, embedded communication card, or TMR CPU. Cross-check the physical item against the H51/H51q hardware manual before purchasing.
- Slot compatibility must match H51/H51q modules. Not every HIMA module fits this rack. Verify the installed or planned I/O modules against the H51/H51q system documentation.
- The integrated I/O-BUS cable is critical. If the cable is missing, damaged, or the wrong length, the rack may not communicate with the controller even if all modules appear seated.
- Backplane damage is not always visible. A rack can look serviceable but have degraded bus contacts. If replacing a faulty rack, verify bus continuity before full commissioning.
HIMA EABT3 B9302 997009302
Application Scenarios
- H51/H51q safety I/O expansion: Provides a standardized 16-slot carrier for digital and analog safety I/O modules.
- ESD and BMS systems: Used in emergency shutdown and burner management racks where H51/H51q I/O must be reliably connected to the safety controller.
- SIS panel retrofits: Replaces damaged or obsolete H51 subracks during safety system refurbishment.
- Spare rack provisioning: Kept as a verified spare to reduce downtime when an I/O rack backplane or bus cable fails.
FAQ
It is a 16-slot I/O rack with integrated I/O bus cable for the HIMA H51/H51q safety control system.
Does it include I/O modules or a CPU?
No. It is a carrier rack. I/O modules, power supplies, and controllers must be specified separately.
Which HIMA systems is it compatible with?
It is designed for HIMA H51/H51q series safety control systems. It is not an AC 800M, HIMax, or HIMatrix component.
Is this a SIL 3 device?
The rack is used in IEC 61508 SIL 3 environments and is listed with SIL 3 compliance, but it is a mechanical/electrical carrier rather than a logic processor.
Can I substitute it with another HIMA rack?
Not automatically. Slot count, bus cable type, and H51/H51q compatibility must match. Verify against the original system documentation.
What should I check before buying surplus stock?
Confirm the full order number, slot count, backplane condition, I/O-BUS cable presence, and whether the rack has been inspected or tested with H51/H51q modules.
