UL 325 Door Operator
Safety & Compliance
Installation, repair, and safety verification for commercial and industrial door operators — compliant with UL 325 safety standards across Southern California.
Request Service →What UL 325 Requires
UL 325 is the safety standard published by Underwriters Laboratories that governs the design, construction, and performance of commercial and residential door operators — including overhead door operators, high-speed door controls, rolling steel door operators, and gate operators.
Any electrically powered door operator installed in a commercial or industrial facility in the United States must meet UL 325 requirements. The standard covers entrapment protection, closing force limits, safety sensor requirements, and control wiring specifications.
In California, UL 325 compliance is enforced through the California Electrical Code and is a standard condition of building permit sign-off for new door operator installations.
What UL 325 Covers
Entrapment Protection
All commercial door operators must include at least one form of entrapment protection — typically photoelectric sensors (photo eyes) that reverse the door if the beam is interrupted during closing.
Closing Force Limits
UL 325 limits the maximum closing force a door operator may apply. Operators that exceed these limits must be adjusted or replaced to prevent entrapment injury.
Auto-Reverse Function
Commercial & Industrial door operators must automatically reverse direction if the door contacts an obstruction during closing. This function must be tested and documented.
Control Wiring
UL 325 specifies control wiring requirements for commercial operators, including protection against unintended activation and proper grounding.
Limit Switch Calibration
Open and close limit switches must be properly set so the door stops at the correct position — over-travel in either direction creates safety risk and premature mechanical wear.
Warning Labels & Signage
UL 325-listed operators must carry appropriate safety labels, and installations must include warning signage visible to door users.
Door Systems We Service for UL 325 Compliance
Overhead Sectional Door Operators
LiftMaster, Genie, Linear, Chamberlain, and all major commercial overhead door operator brands — sensor alignment, force adjustment, auto-reverse testing, and limit switch calibration.
High-Speed Door Controls
Rytec, Rite-Hite, Albany, Dynaco, and BMP high-speed door control systems — safety edge testing, photo eye alignment, and control board diagnostics.
Rolling Steel Door Operators
Cookson, Cornell, Overhead Door, and Clopay rolling steel operator service — entrapment protection verification and force limit testing.
Dock Door Operators
Loading dock overhead door operators with photo eye systems, loop detectors, and vehicle presence detection — full UL 325 safety verification.
Our UL 325 Safety Verification
When InSev Tech services a commercial door operator, our technicians verify UL 325 safety functions as part of every service call — not just on new installations.
We test and document
- Photo eye alignment and beam continuity verification
- Auto-reverse function under contact obstruction
- Closing force measurement and adjustment
- Limit switch calibration (open and close positions)
- Control wiring condition
- Warning label presence
For facilities requiring written documentation — including those undergoing insurance audits or permit inspections — we provide a service report that records all safety functions tested and the results found.
Automatic Door Service — UL 325 Compliant
InSev Tech services automatic pedestrian door systems to ANSI/BHMA A156.10 standards — sliding, swing, and folding doors with UL 325 operator compliance documentation.
Automatic Door Service →Frequently Asked Questions
Schedule a door operator safety inspection.
UL 325 safety verification for commercial and industrial door systems across Southern California. CA Lic. #1052928 B/D28.