Space Age T24-DG is a 24 V module in the TDG (Eclipse DG) series of hybrid low-voltage surge protectors. It combines silicon avalanche diodes (SAD) with a gas discharge tube (GDT) for ultra-low line capacitance, protecting two circuits (four wires) on fire alarm, security, access control and other low-voltage wiring. Modules interlock side by side and can be swapped in the field.
Specifications
| Model |
T24-DG, 24 V |
| Clamping voltage |
26 V |
| RMS voltage |
18 VAC |
| MCOV |
28.8 V |
| Energy dissipation |
40 J |
| Maximum surge current |
10,000 A |
| Clamping response |
Under 1 picosecond |
| Circuits protected |
2 circuits, 4 wires |
| Maximum continuous current |
5 A, no current limiting |
| Capacitance |
35 pF per circuit |
| Terminals |
Pluggable screw terminals, 12 to 26 AWG |
| Operating temperature / humidity |
113 °F (45 °C) max., 85% max. |
| Weight |
2.08 oz |
Installation notes
- Series device: incoming wiring to the IN terminals, protected device to the OUT terminals
- Connect to earth ground with the 12 AWG green ground strap; single-point grounding
- Where possible, leave 3 to 9 ft (1 to 3 m) between the protector and the protected device
- Mount by screws (included), Snap Track or DIN rail (track and rail sold separately); each module takes about 1 in.
- Space Age states the series helps satisfy NFPA 72 12.2.3.3, NFPA 70 760.32 and NFPA 70 805.90
Related models
The TDG series runs from the T05-DG (5 V) through the T12-DG, T32-DG, T36-DG, T48-DG, T70-DG and T90-DG to the T120-DG. The T120-DG is not rated for 120 VAC mains power. DGP part numbers, such as the T24-DGP, appear on the same installation sheet.
Documents
FAQ
How is the T24-DG wired?
In series: incoming wiring connects to the IN terminals and the protected device to the OUT terminals. The unit must be connected to earth ground.
How many circuits does one module protect?
Two circuits (four wires), with a maximum continuous current of 5 A.
How can it be mounted?
By screws (included), on Snap Track or on DIN rail. Track and rail are sold separately.
What is the maximum surge current?
10,000 A, with a clamping response under 1 picosecond.
