Dortronics 4200 Series - Power Supply Controller 4 AMP Class 2 UL-294 Power limited 12 or 24 VDC
The 4204NX power supply provides a field selectable 12 or 24 volt DC output. The required output voltage is accurately regulated, even when operating under maximum and varying load conditions.
Features:
- Dual DC Powered Outputs: One auxiliary class 2 power limited output supplies continuous 1 amp DC power while a second output provides switched DC power through the built-in fire alarm relay.
- Built-In Battery Back-Up Charger: The battery terminals provide a constant trickle charge to maintain backup battery life. Switchover to battery power is instantaneous in the event of a loss or interruption of the line current.
- Quick Easy Installation : Installation is fast, from mounting the enclosure to the connection of wiring. No need to add additional relays for alarm monitoring or the fire alarm interface.
- Visual Indication & Relay Outputs: There are LED status indicators onboard for AC power input and DC power output. Relay outputs are provided for low battery and low power shutdown to prevent deep battery discharge. AC loss relay output triggers upon AC power loss.
- System status LED indication
- Built-in automatic battery charging
- Class 2 power limited DC output
- Fire alarm relay switched DC output
- California state fire marshall listed
- UL-294 Listed for access control
Specifications:
- Electrical: 4 Amp class 2 UL 294 supply AC Input - fused 120 VAC DC Output - 4 amp @ 12/24 VDC selectable via slide switch
- Circuit Board: 4204NXB - 7-1/2”W x 4-5/8”H
- Enclosure: 12.25”W x 15.5”L x 4.5” Deep NEMA 1 enclosure gray with keyed cam lock
- Alarm Relay Outputs: AC power loss and battery power loss two form “C” relay outputs contacts rated 1A @ 30VDC
- Fire Alarm Interface: Set DIP switch to enable or disable select manual or auto reset normally open or closed trigger. Supervised via end of line resistor
Resources
Manufacturer Resources
Product Specs
- Category:
- Electronic Access Controls
- Product Group:
- Electronic Access Controls
- Series:
- 4200 Series
- Product Subgroup:
- Controllers, Power Supplies and Transformers
- Product Type:
- Power Supply Controller
- Subcategory:
- Power Distribution
- Commercial/Residential:
- Commercial
- Electronic:
- Yes
- Product Voltage:
- 12/24VDC
Dortronics 4204NX – Frequently Asked Questions
How fast can I get the Dortronics 4204NX delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Dortronics 4204NX come with a warranty?
Absolutely. The Dortronics 4204NX is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Dortronics 4204NX?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Dortronics 4204NX from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.