🔹 Product Introduction
The HAPA 112 and HAPA 136 are industrial control modules associated with HAPA printing equipment. Available trade records identify HAPA 112 as a Control Unit and HAPA 136 as a POWERSTEP Unit, with documented part numbers including 100-12-00-999B for HAPA 112 and 100-36-00-999B for the HAPA 136 POWERSTEP unit. These modules are used as part of the control and power-management architecture of HAPA printing systems.

HAPA 112
The supplied item is listed as a complete HAPA 112 Control Unit / HAPA 136 POWERSTEP module assembly. Current secondary-market listings identify HAPA 136 / H-136-V4 variants such as 100-36-01-009, while other listings identify H-136 as a CONTROL UNIT / POWERSTEP MODULE. The exact revision and configuration should therefore be checked against the nameplate and hardware markings before replacement.
🔹 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | HAPA |
| Model | HAPA 112 / HAPA 136 |
| Series | HAPA Control / POWERSTEP Series |
| Product Name | Control Unit / POWERSTEP Module Complete Unit |
| Place of Manufacture | Switzerland |
| Product Status | Used industrial spare module; exact condition to be verified |
| Dimensions | Configuration-dependent |
| Weight | Approx. 5 lb for H-136 reference listing |
| Original Country | Switzerland |
| Power | Configuration-dependent |
| Discontinued | H-136 is listed as discontinued by manufacturer |
🔧 Troubleshooting & Common Problems
• No system startup: Check incoming power, connectors, fuses, and the module’s seating in the equipment.
• Control communication failure: Inspect interface cables, connectors, wiring, and the associated HAPA control hardware.
• POWERSTEP module does not operate: Verify the correct HAPA module revision and confirm that the connected machine configuration matches the replacement unit.
• Intermittent operation: Inspect connectors for oxidation, loose contacts, contamination, or mechanical damage.
• Module alarm or fault: Record the machine alarm code and compare it with the HAPA equipment service documentation before replacing additional components.
• Replacement incompatibility: Compare the complete part number, revision, connector arrangement, and hardware configuration rather than matching only the HAPA 112 or HAPA 136 designation.
⚠️ Safety Precautions
• Disconnect and isolate machine power before removing or installing the module.
• Allow capacitors and power circuits to discharge before handling internal connections.
• Do not connect or disconnect wiring while the equipment is energized unless the machine manufacturer specifically permits hot-plug operation.
• Verify the correct module revision and wiring configuration before commissioning.
• Use appropriate ESD protection when handling electronic control boards.
• After installation, perform functional checks at controlled operating conditions before returning the printing system to production.
📰 Product News & Related Information
Historical import records identify HAPA 112 Control Units and HAPA 136 POWERSTEP units as spare parts originating from Switzerland, including 100-12-00-999B and 100-36-00-999B configurations.
HAPA 136 POWERSTEP hardware continues to appear in the industrial surplus market, with current listings identifying H-136-V4 and 100-36-01-009 variants. H-136 is also listed by an industrial spare-parts supplier as discontinued by the manufacturer, making identification of the exact installed revision particularly important when sourcing replacement equipment.
❓ Common Questions & Answers
Q: What is HAPA 112?
A: HAPA 112 is identified as a HAPA Control Unit used in HAPA printing equipment.
Q: What is HAPA 136?
A: HAPA 136 is identified as a POWERSTEP unit/module associated with HAPA printing systems.
Q: Are HAPA 112 and HAPA 136 the same component?
A: No. Available records identify HAPA 112 as a Control Unit and HAPA 136 as a POWERSTEP Unit. They may work together within the same equipment architecture but have different functions.
Q: What is the known HAPA 112 part number?
A: One documented configuration is 100-12-00-999B. Other HAPA 112 configurations also exist, so the complete part number should be checked before ordering.
Q: What is the known HAPA 136 part number?
A: Documented configurations include 100-36-00-999B and H-136-V4 / 100-36-01-009.
Q: Is HAPA 136 discontinued?
A: H-136 is identified as discontinued by the manufacturer in a current industrial spare-parts listing. Individual variants may differ, so the exact part number should be verified.
Q: Can this module replace every HAPA 136?
A: Not necessarily. Revision, firmware/hardware configuration, connectors, and machine compatibility should be checked before replacement.
🔹 Recommended HAPA Models
- HAPA 111 — Control Unit Card
- HAPA 112 — Control Unit
- HAPA 121 — Input/Output Unit
- HAPA 122 / H-122 — Input/Output Unit
- HAPA 133 — POWERSTEP Module
- HAPA 136 / H-136-V4 — POWERSTEP Module
- HAPA 136 100-36-00-999B — POWERSTEP Unit Complete
- HAPA 136 100-36-01-009 — POWERSTEP Module
- HAPA 112 100-12-00-999B — Control Unit
- HAPA 112 100-22-00-999B — Control Unit Complete
