DT230031R DT2

DIN Rail Surge Protection Class II, 3+1 Mode

Surges and voltage transients are a major cause of expensive electronic equipment failure and business disruption. Damage may result in the loss of capital outlays, such as computers and communications equipment, as well as consequential loss of revenue and profits due to unscheduled system down-time. nVent ERICO offers multiple series of surge protective devices (SPDs) suitable for a vast range of applications that provide reliable protection from voltage transients on power distribution systems. The DT2 Series DIN Rail Surge Protective Devices provide reliable and efficient protection against voltage transients within the IEC Class II and UL Type 1CA environments. Tested and independently certified to the IEC and UL standards, the DT2 Series provides a range of safety and performance features for the harshest environments and suitable for protection within a wide range of applications.


Part Number DT230031R
Nominal System Voltage (Un) 240 V
Max Continuous Operating Voltage (Uc) 300 VL-N
305 VL-PE
Nominal Discharge Current (In), IEC 20 kA 8/20 μs L-N
40 Ka 8/20 μs n-pe
Max Discharge Current (Imax), IEC 50 kA 8/20 μs L-N
65 kA 8/20 μs N-PE
Voltage Protection Level (Up), L-N & N-PE 1,500 V
Back-Up Fuse @ Isccr 250 A @ 50 kA
315 A @ 25 kA
Response Time, L-N 25 ns Max
Response Time, N-PE 100 ns Max
Protection Modes L-N
Short Circuit Current Rating (Isccr) 25 kA
50 kA
Temporary Over Voltage 120 min (Ut/mode) 442 V Safe Fail
Temporary Over Voltage Withstand 5 s (Ut) N-PE 1,200 V
L-N 337 v
Nominal Discharge Current (In), UL 20 kA 8/20 μs
Short Circuit Current Rating (SCCR) 150 kA
Voltage Protection Rating (VPR) L-N 1,200 V
N-PE 1,000 V
Technology Thermal Disconnect
Connection, Solid 35 mm² Max
Connection, Stranded 25 mm² Max
Torque (TQ) 4.5 N-m
Humidity 5 – 95 % RH
Temperature -40 to 70 °C
Enclosure Material UL® 94V-0 Thermoplastic
Enclosure Rating IP 20
Mounting 35 mm top hat DIN rail
Remote Contact Switching Capacity 1.0 A @ 250 VAC
1.0 A @ 125 VAC
0.5 A @ 48 VDC
0.5 A @ 24 VDC
0.5 A @ 12 VDC
Remote Contacts Yes
Status Indication Mechanical flag
Depth (D) 69 mm
Height (H) 90 mm
Width (W) 72 mm
Unit Weight 0.486 kg
Certification Details UL® 1449 Edition 4 Type 1CA
Complies With EN 61643-11 Type 2
IEC® 61643-11 Class II
New DIN Rail Mount Redundancy Module for 12V and 24V applications