Linear 2500-178-UPS 115V Solenoid Brake Assembly Product Overview
The Linear 2500-178-UPS is a 115VAC solenoid brake assembly used in select Linear / OSCO commercial gate operator brake circuits. The solenoid works with the mechanical brake so the operator can release the brake during motor operation and apply braking when the operator stops. A working brake system helps the gate stop predictably and helps prevent unwanted movement after the motor is de-energized.
This is a voltage-specific UPS brake part. It is not interchangeable with the 230V brake solenoid assembly, even if the parts look similar. A failed brake solenoid can cause humming, chatter, failure to release, brake drag, overheating, or poor stopping behavior. Before replacing the solenoid, the technician should confirm the operator voltage, brake wiring, coil condition, linkage movement, and the exact part number listed in the operator parts diagram.
Compatible With
Use this solenoid brake assembly only with Linear / OSCO brake systems that specifically call for part number 2500-178-UPS or a 115VAC UPS brake solenoid.
- Select Linear / OSCO commercial gate operators with UPS-style brake assemblies using 115VAC solenoid brake part 2500-178-UPS
- Select Linear / OSCO slide or swing commercial operator brake circuits where the parts diagram lists 2500-178-UPS
- 115VAC brake-control applications in supported Linear / OSCO operator cabinets
- Not interchangeable with 2500-177-UPS 230VAC solenoid brake assembly
- Not a universal brake solenoid for all Linear, GTO, Mighty Mule, or non-OSCO operators
Features & Specifications
| Manufacturer | Linear / OSCO |
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| Product Type | Solenoid brake assembly |
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| Part Number | 2500-178-UPS |
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| Voltage | 115VAC |
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| Application | Commercial gate operator brake system |
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| Compatible Operator Type | Select Linear / OSCO UPS brake applications |
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| Notes | Match voltage and part number before ordering |
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Also Known As / Related Part Numbers
- 2500-178-UPS
- 2500178UPS
- LIN-2500-178-UPS
- Linear 115V UPS solenoid brake
- Linear / OSCO 115VAC brake solenoid
- Solenoid Brake 115V UPS
- Related 230V version: 2500-177-UPS, not interchangeable
Technician Note
Brake symptoms can come from the solenoid, brake linkage, brake disc, control voltage, contactor circuit, or mechanical adjustment. Confirm the cause before ordering parts.
Before Ordering
- Verify the operator brake circuit uses 115VAC
- Confirm part number 2500-178-UPS in the parts diagram
- Compare the old solenoid mounting and lead configuration
- Check for mechanical brake binding before replacing electrical parts
- Do not order the 230V brake solenoid for a 115V brake circuit
Professional Advisory
This part is connected to line voltage and moving mechanical brake parts. A qualified gate technician should perform diagnosis, replacement, and brake adjustment.
Important Ordering Warnings
Using the wrong voltage brake solenoid can damage the operator and may prevent the gate from stopping or holding correctly.
Product Questions & Answers
Is 2500-178-UPS the 115V brake solenoid?
Yes. This listing is for the 115VAC solenoid brake assembly.
No. 2500-177-UPS is the 230VAC version. The two should not be treated as interchangeable.
What symptoms can point to a bad brake solenoid?
Brake chatter, humming, failure to release, dragging, overheating, or poor stopping behavior can all point to brake-system trouble.
Does this fit every Linear / OSCO operator?
No. It fits only select brake assemblies where the parts diagram calls for 2500-178-UPS.
Should the brake be adjusted after replacement?
Yes. Brake operation should be checked and adjusted as needed by a qualified technician after the part is installed.
