S400 - Electronic Static Protection
S400 is a family of electronic static protections design to protect the 24 Vac/dc
power supply lines, 230Vac power supply lines and 4 - 20 mA current loops.
They are widely used to protect against overvoltage or power surges either
signal acquisition instrumentation or field transducers.

Order code : | S400HV |
Description: | 230 Vac power line protection |
Rated voltage: | 220 Vac lines (±15%) |
Operating voltage: | 275 V(rms) (wire to wire) |
Discharge voltage: | 470 V (wire to wire and wire to earth ) |
Discharge current: | > 5000 A |
Breaking capability: | 1500 A |
Max load: | 6,3 A |
Size: | 90 x 36 x 73 mm |
Weight: | 200 g approx |
S400CL 4-20 mA current loop protection
S400CL is an electronic static protections design for 4 - 20 mA current loops.
They are widely used to protect against overvoltage or power surges either
signal acquisition instrumentation or field transducers.
Order code : | S400CL |
Description: | 4-20 mA current loop protection |
Rated voltage: | <35 Vdc supply for 4-20mA current loop |
Operating voltage: | 47 V(rms) ( wire to wire ) |
Discharge voltage: | 90 V ( wire to wire and wire to ground) |
Discharge current: | > 5000 A |
Breaking capability: | 1500 A |
Loop voltage drop: | approx. 2.2 Vdc |
Size: | 1 module DIN 90 x 18.5 x 73 mm |
Weight : | approx 150 g |
S400LV 35 V power line protection
S400LV is an electronic static protection for 24 V devices main lines.
S400LV is widely used to protect all measure or control instrumentations
against overvoltages or power surges.
Order code : | S400LV |
Description: | 35 V power line protection |
Rated voltage: | low voltage lines up to 35Vdc/ac (±15%) |
Operating voltage: | 47 V(rms) (wire to wire) |
Discharge voltage: | 9 0V (wire to wire and wire to earth) |
Discharge current: | > 5000 A |
Breaking capability: | 1500 A |
Max load: | 1 A |
Size: | 90 x 18.5 x 73 mm |
Weight: | 150 g approx |