The Altronix RB524 is a 24VDC general-purpose DPDT relay module. It provides two Form C dry contact sets from a single 24VDC coil input.
First, connect 24VDC to POS (+) and NEG (–). As a result, both relays energize. Then wire your switched loads to the C / NO / NC terminals.
In addition, the RB524 supports several wiring patterns. Therefore, the same board covers dry contact extension, polarity reversal, line seizure, and latching dry contact applications.
Typical Uses for the Altronix RB524
- Dry contact extension off a 24VDC bell or auxiliary output
- Polarity reversal for legacy phone-line and signaling circuits
- Line seizure between house phone and an alarm transmitter
- Latching dry contacts via N.O. trip / N.C. reset push buttons
- Low-voltage interface for access control or building automation
Specifications
- Coil voltage: 24VDC (fixed)
- Current draw: 40 mA
- Contact configuration: two DPDT (Form C) dry contact sets
- Contact rating: 5A at 220VAC or 5A at 28VDC
- Dimensions: 2.75″ x 2″ x 1″ (69.9 x 50.8 x 25.4 mm)
- Mounting: DIN rail compatible (order Altronix part #CLIP4)
- Lifetime warranty
Application Notes
The RB524 is a board-level interface relay. It is not itself a UL-listed fire alarm device. Therefore, when used in a life-safety system, the host panel carries the agency listing. Furthermore, the installer must follow the host panel’s listed wiring instructions and NFPA 72 rules at the system level.
RB524 vs. RB1224 and RBST
Choose the RB524 when your supply is fixed at 24VDC. Alternatively, pick the RB1224 if you need 12VDC or 24VDC selectable. Also consider the RBST snap-track version for 6VDC, 12VDC, or 24VDC use at lower contact ratings.
Order the Altronix RB524
Life Safety Consultants stocks the Altronix RB524 and the matching CLIP4 DIN rail bracket. To order or to confirm panel compatibility, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 4 × 2 × 2 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Relay Module |






