Comelit 1200UL 16Vac Output Transformer
Overview
The Comelit 1200UL is a 16Vac output transformer designed to supply distributed power across door entry, intercom, and access control installations. This is an accessory power supply component—not a standalone device—engineered for integration into control rooms, main distribution panels, and field power distribution nodes. The 1200UL carries CSA and US regulatory certification, meeting North American code and standards requirements for commercial and residential security deployments where certified power supplies are mandatory.
If your project includes Comelit intercom and access control systems, power distribution becomes critical early in the design phase. The 1200UL fills that role when your system architecture requires a dedicated, certified 16Vac transformer rather than relying on embedded power supplies in individual devices.
Key Specifications & Deployment Benefits
- 16Vac Output: Delivers 16 volts AC—the standard voltage for legacy and modern Comelit intercom door stations and access control readers. Ensures compatibility without voltage regulation concerns at the device level.
- CSA Certification: Meets Canadian Standards Association requirements. If your project spans Canada or requires dual North American approval, this certification eliminates the need for a second unit or workarounds.
- US Rated: FCC and UL compliance for US installations. Combined with CSA, the 1200UL covers both US and Canadian jurisdictions without substitution.
- Transformer-Based Design: Uses step-down transformer topology, not a switching supply. Means lower electromagnetic interference (EMI) and more stable voltage delivery to older or sensitive intercom circuits that don't tolerate ripple well.
- Panel-Mount Capable: Sized and designed for installation in control rooms and main distribution panels. No special enclosure—you mount it directly into your existing infrastructure, simplifying logistics.
- Field Power Distribution Node Compatible: Supports remote power distribution when door stations or readers are distant from the main panel. Reduces the number of individual power supplies cluttering the installation.
Integration & Compatibility
The 1200UL is purpose-built for Comelit door entry and intercom system architectures. It is not a universal 16Vac transformer—verify compatibility with your specific Comelit system model before ordering. Installation occurs at the power distribution stage of your project, not at individual device endpoints. Integrators should confirm voltage and current draw requirements of all connected devices to ensure the transformer's capacity is not exceeded.
When to Choose a Different Model
If your Comelit system requires a different output voltage (e.g., 12Vac or 24Vac), or if you need a higher current capacity, contact Comelit to confirm the correct transformer model for your load. Do not substitute transformers across voltage classes—device damage and warranty voidance will result.
Frequently Asked Questions
Q: Is the Comelit 1200UL suitable for both residential and commercial installations?
A: Yes. The CSA and US certifications apply to both residential and commercial security projects. Confirm with your local authority having jurisdiction (AHJ) if any local amendments supersede national standards.
Q: What is the maximum current output of the 1200UL?
A: Consult the manufacturer datasheet for exact amperage specifications. Total connected device current draw must not exceed the transformer's rated output.
Q: Can the 1200UL be used outdoors?
A: The 1200UL is intended for indoor installation in control rooms and distribution panels. For outdoor power distribution nodes, use an outdoor-rated enclosure and confirm environmental limits with the manufacturer.
Q: Does the 1200UL work with non-Comelit devices?
A: The 1200UL is engineered and certified specifically for Comelit systems. Using it with third-party devices may violate UL/CSA certification and void warranties. Do not attempt cross-brand substitution.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The Comelit 1200UL is a straightforward accessory that does one thing well: deliver certified 16Vac power to Comelit intercom and access control systems in North American installations. What makes it worth your attention is the dual CSA/US certification—this eliminates the need to source separate units for cross-border projects or mixed jurisdictions. The transformer-based design is less common than switching supplies these days, but it's a deliberate choice that minimizes EMI and plays well with legacy Comelit circuits that can be finicky about ripple and voltage stability.
Technical Highlights:
- 16Vac Output, CSA + US Rated: Covers both Canadian and US markets without substitution. Certification is non-negotiable in commercial security—this saves engineering review cycles and approval delays.
- Transformer-Based Topology: Lower ripple and EMI than switching supplies. Older Comelit intercom circuits especially benefit from the cleaner voltage signature.
- Panel-Mount Architecture: Designed for installation in control rooms and main distribution panels, not as a standalone field unit. Reduces clutter and simplifies power tree documentation.
Deployment Considerations:
- Verify the total current draw of all connected Comelit devices before commissioning. Exceeding the transformer's rated amperage will cause nuisance fuse blows or shutdown.
- The 1200UL is Comelit-specific. Do not substitute this transformer for generic 16Vac supplies in the same rack—you will void certification and warranty.
- Plan for thermal dissipation if the transformer is in a confined panel enclosure. Heavy continuous load can raise internal temperature.
Position the 1200UL in any Comelit intercom or access control project where the architect or code official requires a certified transformer-based supply, or where legacy Comelit circuits demand lower EMI than a switching supply provides. For new construction, confirm power distribution requirements early; last-minute additions of the 1200UL to an existing install can strain panel space and heat management.
