Surge protection for measurement and control technology - TT-UK-R-F/250AC 2788249

Modular double terminal block with gas-filled surge arrester as coarse protection between both levels, nominal voltage: 250 V AC, for mounting on NS 32 or NS 35/7.5, closed housing, terminal width: 15.5 mm, terminal height: 45.5 mm


Product Details




IEC test classification C2
D1
VDE requirement class C2
D1
Type Single-level terminal block – two-channel
Surge protection fault message none
Wire pairs per module 1

Mounting type DIN rail: 35 mm

Color black
Flammability rating according to UL 94 V2
Housing material PA

Connection method Screw connection
Screw thread M3
Tightening torque, min 0.5 Nm
Conductor cross section flexible min. 0.2 mm²
Conductor cross section flexible max. 2.5 mm²
Conductor cross section solid min. 0.2 mm²
Conductor cross section solid max. 4 mm²

Width 15.3 mm
Height 45.5 mm
Length 50 mm

Direction of action Line-Line
Maximum continuous voltage UC 150 V DC
250 V AC
Maximum continuous voltage UC (line-line) 150 V DC
250 V AC
Operating effective current IC at UC ≤ 2 µA
Residual current IPE ≤ 2 µA
Nominal discharge current In (8/20) µs (line-line) 20 kA
Total surge current (8/20) µs 20 kA
Max. discharge current Imax (8/20) µs maximum (line-line) 20 kA
Output voltage limitation at 1 kV/µs (line-line) spike ≤ 1.4 kV
Response time tA (line-line) ≤ 100 ns
Capacity (Core-Core) ≤ 1.5 pF
Surge protection fault message none
Alternating current carrying capacity (line-earth) 20 A - 1 s

Mechanical data
Open side panel No

Standards/specifications IEC 61643-21
VDE requirement class C2
D1
Air clearances and creepage distances
Standards/regulations VDE 0110-1
Standards Information technology specification
Standards/regulations IEC 61643-21
IEC 61643-21

Ambient conditions
Degree of protection IP20
Ambient temperature (operation) -40 °C ... 80 °C


Order Key 2788249
Packing unit 25 pc
Minimum order quantity 1 pc
Sales Key CL2
Catalog Page Page 89 (TT-2007)
GTIN 4017918071455
Weight per Piece (including packing) 30.2 GRM
Weight per Piece (excluding packing) 30.2 GRM
Customs tariff number 85363010
Country of origin GR



China RoHS Environmentally Friendly Use Period = 50 years
China RoHS For details about hazardous substances go to tab “Downloads”, Category “Manufacturer's declaration”