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Lightning & Surge Protection

DEHN DEHNRAIL M SURGE ARRESTER DRM4P255

Product Code: DRM4P255

Four-pole DEHNrail modular surge arrester (type 3 according to EN 61643-1) consisting of a base part and plug-in protection module. High discharge capacity due to heavy-duty zinc oxide varistor / spark gap combination. For protecting the power supply circuit of industrial electronics equipment against transient surges in switchgear cabinets.

Technical Specifications

Brand DEHN
Article No. 953400
Circuit Type Final Sub Circuit
Degree of Protection IP20
Dimensions (mm) 0.07W x 0.1L x 0.04D
Integral Fuse No
Maximum Continuous Operating Voltage MCOV AC (V) 255/440
Mounting Type DIN Rail
No. of Modules 2
No. of Poles 4P+PE
Nominal Discharge Current (8/20µs) - In (kA) 3
Nominal Load Current AC - I? (A) 25
Nominal Voltage AC (V) 230/400
Operating State/Fault Indication Green/Red
Response Time (ns) ≤ 25 (L-N)/≤ 100 (L/N-PE)
Short-Circuit Withstand Capability - Iscc? (kArms) 6
Signal C/O Contact No
Total Discharge Current (8/20µs) - Itotal (kA) 8 (L1+L2+L3+N-PE)
Voltage Protection Level - Up (kV) ≤ 1 (L-N) / ≤ 1.5 (L/N-PE)
Weight (kg) 0.17

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