Description
⚙️ Product Introduction
The GUTOR ELECTRONICS SILCON 21108-2 is identified in industrial listings as an auxiliary power-supply assembly associated with the SILCON UPS platform. The same assembly is listed under Gutor part number 0500129 and described as PCA PSU AUX / SILCON 21108-2 / Voltage Supply.
This module is intended to provide auxiliary power within the associated Gutor SILCON power system. It should therefore be treated as a system-specific UPS power-supply component rather than a general-purpose industrial power supply.
The referenced industrial listing identifies the manufacturer as Gutor Electronics, part number 0500129, SILCON 21108-2, and country of origin as Switzerland.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | GUTOR Electronics |
| Model | SILCON 21108-2 |
| Series | SILCON |
| Product Name | Voltage Supply / Auxiliary PSU |
| Part Number | 0500129 |
| Product Type | PCA PSU AUX |
| Application | SILCON UPS / Power System |
| Country of Origin | Switzerland |
| Product Status | Legacy / Replacement Spare |
| Condition | New Other / Surplus availability |
The 0500129 / SILCON 21108-2 identification and Swiss origin are supported by current industrial marketplace information.
⚠️ Exact input voltage, output voltage, output current, power rating, dimensions, and weight are not reliably established from the available public information for this exact assembly. These values should be read from the physical nameplate or original Gutor documentation rather than estimated.
🔧 Operating Standards & How to Use
The 21108-2 should be installed only in the compatible Gutor SILCON system.
🔹 Confirm the complete part number before installation.
🔹 Compare the replacement module with the original unit.
🔹 Check input and output connector positions.
🔹 Verify the required voltage before energizing the module.
🔹 Inspect terminals and connectors for corrosion or damage.
🔹 Check the PCB and power components for visible overheating.
🔹 Verify protective grounding.
🔹 Make sure the SILCON UPS is in the correct maintenance state before replacing the auxiliary PSU.
🔹 Follow the original Gutor system wiring diagram for all connections.
⚠️ Do not apply an unknown external voltage to the module. Auxiliary power-supply assemblies can have multiple internal voltage rails and system-specific connectors.
▶️ Startup Sequence
- 🔍 Confirm SILCON 21108-2 / 0500129 identification.
- 🔌 Check all connectors and wiring.
- 🛡️ Confirm grounding and cabinet safety.
- ⚡ Restore the applicable SILCON system power source.
- 💡 Check available status indicators.
- 📊 Verify auxiliary/control voltages.
- 🖥️ Check the UPS control system for alarms.
- 🔄 Confirm communication between the power supply and associated control electronics.
- 🧪 Perform a controlled UPS functional test.
- 📈 Monitor the system for abnormal temperature, alarms, or voltage fluctuations.
⏹️ Shutdown Sequence
- Place the SILCON UPS into the approved maintenance or bypass condition.
- Follow the normal UPS shutdown procedure.
- Isolate the relevant AC/DC power sources.
- Apply lockout/tagout procedures where required.
- Verify absence of hazardous voltage.
- Allow internal capacitors and stored energy to discharge.
- Remove the existing auxiliary PSU.
- Install the replacement unit using ESD precautions.
- Restore power only after the wiring has been fully checked.
⚠️ UPS equipment can contain hazardous stored energy even after the primary input has been disconnected.
📘 Product Usage Instructions
The 21108-2 functions as an auxiliary power-supply component within the Gutor SILCON system. It supports the electrical requirements of associated control and monitoring hardware rather than serving as the primary UPS power-conversion stage.
A simplified system relationship can be represented as:
SILCON UPS → Auxiliary Power Supply → Control / Monitoring Electronics
For replacement work, the original module should be documented before removal. Record the part number, connector positions, wiring, PCB markings, and revision information.
After replacement, verify the auxiliary supply first. Then check the UPS controller, monitoring functions, alarms, and overall system operation.
🛠️ Installation & Maintenance
🔹 Store the module in a dry, ESD-safe environment.
🔹 Inspect connectors before installation.
🔹 Check terminals for oxidation or overheating.
🔹 Keep ventilation paths free from dust.
🔹 Inspect capacitors and power components for visible damage.
🔹 Check PCB surfaces for contamination.
🔹 Verify all wiring before energization.
🔹 Record the installed part number and revision for maintenance history.
🔹 Perform a functional test after replacement.
❓ Common Questions & Answers
Q: What is Gutor SILCON 21108-2?
A: It is identified as a Gutor SILCON auxiliary voltage-supply assembly, also listed under Gutor part number 0500129.
Q: What is the Gutor part number?
A: The associated part number is 0500129.
Q: What does PCA PSU AUX mean?
A: It identifies the assembly as an auxiliary power-supply PCB/assembly used within the SILCON system.
Q: Is it a complete UPS?
A: No. The 21108-2 is an auxiliary voltage-supply component, not a complete UPS system.
Q: What is the country of origin?
A: The referenced industrial listing specifies Switzerland.
Q: What is the input voltage?
A: A reliable exact input-voltage specification could not be confirmed from the available public references. Check the nameplate and original SILCON wiring documentation before applying power.
Q: What is the output voltage?
A: The exact output-voltage specification should likewise be confirmed from the physical unit or original Gutor documentation.
Q: Can I use it as a standalone power supply?
A: It should not be treated as a generic standalone PSU. It is a system-specific auxiliary supply designed for the compatible Gutor SILCON equipment.
Q: Can another SILCON PSU replace 21108-2?
A: Not automatically. Connector configuration, voltage rails, current capacity, mechanical dimensions, and system compatibility must all be matched.
Q: Is the product still in production?
A: It is generally encountered as a legacy/replacement-market component. Current industrial listings show surplus/new-other availability.
Q: What should I check before purchasing?
A: Confirm Gutor 0500129, SILCON 21108-2, physical connector arrangement, PCB markings, revision, condition, and available electrical test results.
⭐ Recommended Gutor SILCON Related Models
- GUTOR SILCON 21108-2 — Auxiliary Voltage Supply
- GUTOR 0500129 — PCA PSU AUX
- GUTOR SILCON 21108 — SILCON system reference
- GUTOR SILCON UPS — Industrial UPS family
- GUTOR SILCON DP — Industrial UPS family
- GUTOR PEW — Industrial UPS family
- GUTOR PDW — Industrial UPS family
- GUTOR 0400207 — PCA CU-B Control Unit
- GUTOR OM-94035B — Front Panel Interface
- GUTOR SILCON Control / Power Supply Modules — Related legacy system components
⚠️ These are related Gutor/SILCON references and are not confirmed drop-in replacements for 0500129. Exact interchangeability must be verified from the SILCON system documentation and the original module’s electrical and mechanical specifications.
📦 Replacement Identification
For purchasing and maintenance records, use the complete identification:
GUTOR ELECTRONICS | SILCON 21108-2 | P/N 0500129 | PCA PSU AUX | VOLTAGE SUPPLY
For surplus or replacement units, request clear photographs of the nameplate, PCB markings, connectors, and any available power-up or functional test report before shipment.


