https://www.phoenixcontact.com/us/products/2795973
09/10/2014Page2/5
Surge protection device-TT-UKK5-M/ 48DC-2795973
Technical data
General
Color black
Standards for air and creepage distances VDE 0110-1
Mounting type DIN rail/G-profile rail
Type Double-level terminal block with disconnect knife
Number of positions 1
Direction of action Line-Line
Protective circuit
IEC test classification C3
VDE requirement class C3
Nominal voltage U
N
48 V DC
Maximum continuous operating voltage U
C
53 V DC
37 V AC
Maximum continuous voltage UC (wire-wire) 53 V DC
Maximum continuous voltage U
C
(wire-ground)
37 V AC
Nominal current I
N
12 A (45°C)
Operating effective current I
C
at U
C
≤ 5 µA
Nominal discharge current I
n
(8/20) µs (Core-Core)
90 A
Total surge current (8/20) µs 90 A
Max. discharge current I
max
(8/20) µs maximum (Core-Core)
90 A
Nominal pulse current Ian (10/1000) µs (Core-Core) 17.7 A
Output voltage limitation at 1 kV/µs (Core-Core) static ≤ 80 V
Residual voltage at I
n
, (conductor-conductor)
≤ 111 V
Response time tA (Core-Core) ≤ 1 ns
Cut-off frequency fg (3 dB), sym. in 150 Ohm system typ. 3.8 MHz
Capacity (Core-Core) ≤ 0.85 nF
Surge carrying capacity in acc. with IEC 61643-21 (Core-Core) C3 - 10 A
Connection data
Connection method Screw connection
Connection type IN Screw terminal blocks
Connection type OUT Screw terminal blocks
Screw thread M3
Tightening torque 0.5 Nm
Stripping length 8 mm
Conductor cross section stranded min. 0.2 mm²
Conductor cross section stranded max. 4 mm²
Conductor cross section solid min. 0.2 mm²
