Product Description
900-2RS Von Duprin Power Supply Board — 2 Relay EL Control
Expert's Note: The 900-2RS is the go-to board for two-door vestibule setups with electrified panic hardware. Each relay controls one EL device independently — when door 1 gets a request-to-exit, door 2 stays locked. Simple, reliable, no logic conflicts. If you're wiring up a typical front entrance with two EL exit devices, this is the board.
Plugs directly into any Von Duprin PS900 series power supply enclosure — no wiring harness, no adapter. If the job requires fire alarm integration, get the 900-2RS-FA instead of adding a separate 900-FA module. Saves a board slot and simplifies the install.
Technical Specifications
| Type | 2 Relay EL Panic Device Control Board |
| Control | Independent relay per device |
| Fire Alarm | Optional (see 900-2RS-FA) |
| Installation | Plug and play into PS900 series |
Compatible Power Supplies
| PS902 | 2A base supply |
| PS904 | 4A base supply |
| PS914 | 4A with 16A inrush |
| PS906 | 6A base supply |
900-2RS vs 900-2RS-FA: The FA version includes the Fire Alarm relay pre-installed, saving you the cost of a separate 900-FA module and a board slot in the enclosure.
Lock Depot sells brand new Von Duprin products with the full manufacturer warranty.
