HySecurity MX001240, SWITCH,10 AMP, 250 V ,SPDT
HySecurity MX001240 is a 10A, 250VAC SPDT hold open switch for select HySecurity StrongArm barrier gate operator applications. Current listings identify MX001240 as a Hold Open Switch and describe it as a 10 amp, 250VAC, SPDT switch for StrongArm.
This switch is used in the approved StrongArm hold-open switch location where the HySecurity parts diagram confirms MX001240. Because switch function, terminal layout, voltage rating, and wiring location matter, this part should be selected only after confirming the operator model, original switch, wiring diagram, and parts documentation.
What This Hold Open Switch Does
The hold open switch is used as part of the StrongArm operator control interface where the system is designed to provide a hold-open function. In an approved installation, the switch allows the operator control system to receive the proper hold-open input or command state.
A failed, loose, burned, corroded, broken, or incorrectly wired hold open switch can cause the hold-open function to fail, operate intermittently, or behave differently than expected. Similar symptoms can also be caused by damaged wiring, loose terminals, controller input issues, accessory command problems, incorrect switch wiring, or prior non-factory modifications.
Compatible With
Use HySecurity MX001240 only where the operator parts diagram, original switch, or HySecurity documentation confirms this part number.
- Select HySecurity StrongArm barrier gate operator applications where MX001240 is listed as the hold open switch.
- StrongArm / SA control repairs where the original switch is marked, listed, or cross-referenced as HySecurity MX001240.
- Applications requiring a 10A, 250VAC, SPDT switch where the parts diagram specifically lists MX001240.
- Repairs where the terminal layout, switch action, mounting style, and wiring location match the original StrongArm installation.
Important Compatibility Warning
Do not order MX001240 based only on the rating "10A 250V" or the term "SPDT." Many switches share similar ratings but have different terminal layouts, mounting styles, actuator styles, and switch functions. This part is specifically listed as a hold open switch for StrongArm applications.
MX001240 should not be confused with the StrongArm limit switch, limit switch assembly, reset switch, disconnect switch, kill switch, circuit breaker, relay, or controller input hardware. Electrical switch diagnosis should be handled carefully, and power should be secured before any wiring service.
Similar Parts That Are Not Automatically Interchangeable
- mx001872-limit-switch-assembly-strongarm.html">HySecurity MX001872 - StrongArm limit switch assembly / limit switch kit; not the same as MX001240.
- mx001777-limit-switch-for-strongarm-and-swingsmart-dc-gate-operators.html">HySecurity MX001777 - StrongArm limit switch; related switch hardware, not the same as the hold open switch.
- mx000299-1-25-inch-limit-cam-strongarm.html">HySecurity MX000299 - StrongArm limit cam; mechanical cam, not a switch.
- mx002124-p-internal-reset-switch-replacement-kit.html">HySecurity MX002124 - reset switch replacement kit; not the same as MX001240.
- mx000715-3-pole-disconnect-switch.html">HySecurity MX000715 - 125-250V 17A 3-pole switch; different switch type and not automatically interchangeable.
- Kill switch kits used with breakaway arm hardware - separate safety/interlock switch parts, not the hold open switch.
- Generic 10A 250VAC SPDT switches - not confirmed substitutes unless the mounting, terminals, function, and parts diagram match.
- Controllers, relays, contactors, and circuit breakers - electrical control components but not the same as this hold open switch.
Not Intended For
- Limit switch replacement.
- Limit switch assembly or limit switch kit replacement.
- Reset switch replacement.
- Disconnect switch or main power switch replacement.
- Kill switch replacement for breakaway arm hardware.
- Controller, relay, contactor, circuit breaker, motor, gearbox, or power supply repair.
- StrongArm M30/M50, StrongArmPark, SwingRiser, HydraSwing, HydraLift, HydraWedge, SlideDriver, SlideSmart, SwingSmart, or WedgeSmart operators unless the parts diagram specifically lists MX001240.
- Any electrical repair where the switch rating, action, terminal layout, or wiring function does not match the original part.
Features & Specifications
| Feature / Specification | Details |
| Manufacturer | HySecurity / Nice HySecurity |
| Part Number | MX001240 |
| Product Type | Hold open switch |
| Switch Type | SPDT |
| Electrical Rating | 10A, 250VAC, based on current listing descriptions |
| Common Description | Switch, 10 amp, 250 V, SPDT / Hold Open Switch |
| Common Application | Select HySecurity StrongArm barrier gate operator applications |
| Operator Family | StrongArm / SA where listed by parts diagram |
| Related Function | Hold-open control function where specified by the operator wiring diagram |
| Package Contents | Verify current package contents before ordering; mounting hardware, terminals, wiring, or labels may be separate unless stated |
Also Known As / Related Part Numbers
- MX001240
- HySecurity MX001240
- Nice HySecurity MX001240
- HYS-MX001240
- HYS-mx001240
- MX001240-5128
- HySecurity hold open switch
- HySecurity StrongArm hold open switch
- HySecurity 10A 250VAC SPDT switch
- Switch, 10 amp, 250 V, SPDT
- Switch, Hold Open
- Hold Open Switch for StrongArm
- MX001872 - related StrongArm limit switch assembly; not the same part
- MX001777 - related StrongArm limit switch; not the same part
- MX000299 - related StrongArm limit cam; not the same part
Related Parts and Accessories
The correct related parts depend on the installed StrongArm model, control-panel layout, and reason the switch is being replaced. Inspect the full hold-open circuit before ordering only the switch.
- MX001872 limit switch assembly - related StrongArm switch assembly, not the hold open switch.
- MX001777 limit switch - related limit switch, not the hold open switch.
- MX000299 limit cam - related mechanical limit part, not the hold open switch.
- Controller input wiring - inspect if the hold-open function still fails after switch replacement.
- Command devices and access control inputs - check if the operator is not responding to hold-open commands.
- Terminals, connectors, and mounting hardware - verify whether they are included or reused from the original installation.
Technician Note
Before replacing MX001240, inspect the switch terminals, wire connections, mounting hardware, actuator action, and controller input. A hold-open problem may be caused by a failed switch, but it can also come from a loose terminal, damaged wire, bad command input, controller setup issue, accessory input problem, or previous wiring modification.
Do not move wires from the old switch to the new switch by position alone unless the terminal markings match. SPDT switches usually include common, normally open, and normally closed terminals, and an incorrect connection can change how the hold-open function behaves.
Before Ordering, Confirm
- The required part number is MX001240.
- The operator is a HySecurity StrongArm / SA application where the parts diagram lists MX001240.
- The repair requires the hold open switch, not a limit switch, reset switch, disconnect switch, kill switch, relay, or controller.
- The required switch type is SPDT.
- The required electrical rating is 10A, 250VAC.
- The terminal layout, actuator style, mounting style, and switch function match the original installation.
- The wiring, terminals, controller input, and command devices have been inspected.
- The package includes the expected switch and any required mounting hardware, or related hardware is ordered separately if needed.
Installation and Service Notes
- Disconnect and secure operator power before servicing any switch or wiring.
- Label the original wires before removing the old switch.
- Confirm common, normally open, and normally closed terminals before reconnecting wires.
- Do not bypass the switch or controller input to force the operator to hold open.
- Inspect wire terminals for corrosion, heat damage, loose crimps, or broken conductors.
- After installation, test the hold-open function and normal operator cycling.
- Verify that all stop circuits, limit controls, kill switches, access control safety inputs, and required safety devices remain connected and working properly.
Professional Advisory
Electrical switch replacement should be handled by a qualified gate technician when the repair involves live voltage, control-panel wiring, unknown wire modifications, burned terminals, failed controller inputs, or unsafe operator behavior. Do not bypass limit controls, stop circuits, kill switches, controller protections, access control safety inputs, photo eyes, safety edges, or any required safety devices to keep the operator running.
Product Questions & Answers
What is HySecurity MX001240?
HySecurity MX001240 is a 10A, 250VAC SPDT hold open switch for select HySecurity StrongArm barrier gate operator applications.
What operators use MX001240?
MX001240 is commonly listed for HySecurity StrongArm applications. Use it only where the operator parts diagram confirms this hold open switch.
Is MX001240 a limit switch?
No. MX001240 is listed as a hold open switch. StrongArm limit switch parts, such as MX001872 or MX001777, are separate related parts.
What does SPDT mean on this switch?
SPDT means single pole double throw. In practical terms, the switch has a common terminal and two switched outputs, typically normally open and normally closed, depending on the switch design.
Can I use any 10A 250VAC SPDT switch as a replacement?
No, not unless the mounting style, terminal layout, switch action, rating, and HySecurity parts diagram confirm it as the correct replacement. Similar electrical ratings do not guarantee the switch will fit or function correctly.
What should be checked if the hold-open function does not work?
Check the hold open switch, terminals, wiring, controller input, command devices, accessory inputs, and any prior wiring changes before replacing only the switch.
Should a technician replace this switch?
A qualified gate technician is recommended if the repair involves control-panel wiring, live voltage, burned terminals, unknown wire changes, or a hold-open issue that may involve the controller or accessory inputs.
