SES RPPOWERHRNCAT, POWER HARNESS W/TERMINAL BLOCK, CATs
The SES RPPOWERHRNCAT is a replacement power harness with terminal block for CAT Series access control units. CAT systems are larger SES access control platforms that may support telephone entry, card access, expansion modules, multiple doors, relay control, and SELCOM programming depending on the model. The power harness is a small but important service part because loose or damaged power connections can create resets, dead displays, intermittent operation, or heat at the terminal block.
Use this harness only for CAT applications that specify RPPOWERHRNCAT. SES CAT, TEC, TEC1, and Select Gate products may look similar in the cabinet, but their wiring harnesses can differ by connector layout, terminal block style, board location, and generation. If the old harness is burnt or corroded, inspect the transformer, surge protection, cabinet grounding, and connected wiring before installing the replacement.
Compatible With
- Select Engineered Systems CAT Series telephone entry and access control systems where RPPOWERHRNCAT is specified
- Commonly associated with CAT2, CAT4, and CAT10 product families when the parts diagram calls for this CAT power harness
- CAT systems with card access or expansion capability when the same harness is shown in the parts list
- Not a confirmed replacement for RPPOWERHRNTEC, RPPOWERHRNT1, or RPPOWERHRNSG
Features and Specifications
| Manufacturer | Select Engineered Systems (SES) |
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| Product Type | Power harness with terminal block |
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| Part Number | SES-RPPOWERHRNCAT |
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| Application | Power harness replacement for Select Engineered Systems CAT access control units |
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| Compatible Product Type | Select SES CAT Series systems where RPPOWERHRNCAT is specified |
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| Included Components | Replacement power harness with terminal block |
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| Notes | For CAT systems; verify CAT model and board layout before ordering. |
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Also Known As / Related Part Numbers
- SES-RPPOWERHRNCAT
- RPPOWERHRNCAT
- SES RPPOWERHRNCAT
- CAT power harness with terminal block
- SES CAT power harness
- RP POWER HRN CAT search variation
Technician Note
When replacing a power harness, look closely for heat discoloration, loose screws, water marks, and damaged insulation. Those signs can point to a loose connection, cabinet leak, overloaded circuit, or transformer issue that should be corrected before the unit is put back in service.
Before Ordering
- Match the harness part number and the SES product family before ordering.
- Compare connector count, terminal block style, wire routing, and board location against the original harness.
- Check for moisture damage, loose terminals, corrosion, pinched wires, or overheated connections inside the cabinet.
- Do not choose a harness by appearance only; similar SES harnesses may be wired for different boards or product generations.
- Label existing wiring before removal so the replacement harness can be installed in the same circuit location.
Professional Advisory
Harness replacement should restore the original wiring path, not change the way the entry system is powered or connected. Do not bypass protective devices, required safety inputs, fire access equipment, or gate operator controls. If wiring is burnt, shorted, or repeatedly failing, have the system inspected before replacing parts.
Important Ordering Warnings
- This is the CAT Series power harness. Do not use it for TEC, TEC1, SG2, or SG3 systems unless SES documentation for that exact unit specifies the same part.
Product Questions
What is included with SES RPPOWERHRNCAT?
It is a replacement power harness with terminal block for select SES CAT systems.
Which SES systems use RPPOWERHRNCAT?
It is listed for CATs and should be used with CAT Series units that call for this harness in the parts diagram.
Is the CAT power harness interchangeable with TEC harnesses?
Do not assume it is interchangeable. CAT, TEC, TEC1, and SG harnesses can use different wiring and connector layouts.
What symptoms can a damaged power harness cause?
A damaged harness can cause no power, intermittent resets, loose terminal connections, display flicker, or heat around the terminal block.
What should be checked before replacing this harness?
Check the original part number, terminal block, transformer output, board connector, grounding, surge damage, and any signs of moisture or overheating.