Central unit RZ-24-05
The “design solution” for hold-open systems
Characteristics
- Fits in a standard flush mounted box with 60 mm diameter
- With integrated manual release button
- All essential functions (power supply, control of the release devices such as smoke detectors, Reset, hand release button) are combined in one device, so that only fire detectors and electromagnets have to be connected
- Despite its small dimensions, it includes all essential functions of a central unit for hold-open systems
- High output of 500 mA
- Complies with the requirements of the norm EN 14637
- Tested and approved by the DIBt (German institute for building engineering)
Product details
Technical Data
| Supply voltage | 85 - 264 VAC |
| Power consumption | about 14 W, own consummption about 40 mA |
| Secondary output voltage | 24 VDC ±10 % |
| Secondary total load | permanently 0,5 A (supply of fire detectors, electromagnets and other consumers) |
| Operating temperature | from 0 °C to +40 °C |
| IP rating | IP 30 |
Functions
Functions of the standard model
- Manual release of the hold-open system by the hand release switch integrated in the RZ-24-05.
- Tripping the hold-open system by connected fire detectors.
- Tripping the hold-open system by a fire alarm central (requires a potential-free contact).
- RESET of the complete hold-open system via the keypad of the RZ-24-05: First reset the fire detectors by the hand release switch and then the RZ-24-05 central by its integrated RESET switch.
- Automatic RESET after a power cut or actuating the hand switch (if required, adjustable in the central unit by means of a DIP switch)
- Integrated excess-current protection: If too many consumers are connected, the power supply automatically cuts off.
- Status indications for normal operation, alarm and various fault conditions on the keypad.
Accessories
If there is no cover frame provided by the customer when installing the RZ-24-05, the cover frame can also be supplied by DICTATOR.
In addition to the normal cover frame, there is also a frame with transparent cover available. According to the type approval of the DIBt it is allowed to protect a hand switch against misuse with a suitable transparent cover. Another advantage is that accidental operation of the manual release button is prevented in places with a lot of foot traffic.
Installation
Installation notice
Normally, the RZ-24-05 is installed in a standard flush-mounted box (not included in the delivery).
A model provided by the customer can be used as a frame for the circuit board with hand switch.
(IMPORTANT: switch cut-out 55 x 55 mm, without rounded corners!)
Connection
When carrying out the electrical connection work, please note that due to the small size of the board and terminals, a special release tool (part no. 040565) must be used for the miniature terminals to prevent damage. This release tool can also be obtained from DICTATOR.
For connection, the wires are simply plugged into the corresponding terminals.
Important: A 3.9 kΩ resistor is already included with the RZ-24-05. This is required when connecting the fire detectors RM 4000/WM 4000.
Inputs / Outputs
The RZ-24-04 has 14 connection terminals for cables with a maximum of 0.75 mm2.
Inputs
- Mains connection
- External reset or central closing
Outputs
- Supply of the fire alarm loop with fire and/or heat detectors (with terminating resistor 3.9 kΩ
- Supply 24 VDC for the electromagnets
- Output +/- for warning signal
Overview: Connection terminals
Technical manual
Order information
Order Information
| Description | Part No. |
|---|---|
| RZ-24-05 central unit with power supply and tripping device, 0.5 A, to be built into standard boxes | 040563 |
Accessories
| Description | Part No. |
|---|---|
| Cover frame, alpine white, for RZ-24-05, for installation in flush box | 040566 |
| Cover frame, polar white, with transparent cover for RZ-24-05, for installation in flush box | 040567 |
| Tool for removing wires in the RZ-24-05 central | 040565 |
Downloads
| File Name | Type |
|---|---|
| Documents | |
| Catalog Central units for hold-open systems | |
| Technical manual RZ-24-05 |
