VAL-MS 750/30/3+0
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Type 2 surge arrester
2920269
Surge arrester for 4-conductor power supply systems (L1, L2, L3, PEN), consisting of a base element and protective connectors, for mounting on NS 35.
Product details
| General | |
| Note | Usable in all low-voltage systems between L-N or L-PEN. Only usable in IT Systems between L-PE, if the exposed-conductive-parts (bodies) of the equipment of the low-voltage installation is connected to the earthing arrangement of the transformer substation. (interconnected earthing arrangement of the HV-transformer substation with the bodies of the LV-installation. RE = RA accordance to IEC 60364-4-442 / VDE 0100-442 Fig. 44D / Example a) |
| Product type | Surge arrester |
| Product family | VALVETRAB MS |
| IEC test classification | II |
| T2 | |
| EN type | T2 |
| IEC power supply system | TN-C |
| IT | |
| Type | DIN rail module, two-section, divisible |
| Distance between live and grounded parts | 8 mm |
| Number of positions | 3 |
| Surge protection fault message | optical |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal frequency fN | 50 Hz (60 Hz) |
| Connection method | Screw connection |
| Screw thread | M5 |
| Tightening torque | 3 Nm (1.5 mm² ... 16 mm²) |
| 4.5 Nm (25 mm² ... 35 mm²) | |
| Stripping length | 16 mm |
| Conductor cross section flexible | 1.5 mm² ... 25 mm² |
| Conductor cross section rigid | 1.5 mm² ... 35 mm² |
| Conductor cross section AWG | 15 ... 2 |
| Connection method | Fork-type cable lug |
| Conductor cross section flexible | 1.5 mm² ... 16 mm² |
| Dimensional drawing |
|
| Width | 53.4 mm |
| Height | 89.8 mm |
| Depth | 65.7 mm (incl. DIN rail 7.5 mm) |
| Horizontal pitch | 3 Div. |
| Color | black (RAL 9005) |
| Flammability rating according to UL 94 | V-0 |
| CTI value of material | 600 |
| Insulating material | PA 6.6/PBT |
| Material group | I |
| Housing material | PA 6.6 |
| PBT |
| Mode of protection | L-PE |
| L-PEN | |
| Direction of action | 3L-PEN |
| 3L-PE | |
| Nominal voltage UN | 554/960 V AC (TN-C) |
| 690 V AC (IT) | |
| Nominal frequency fN | 50 Hz (60 Hz) |
| Maximum continuous operating voltage UC | 760 V AC |
| Rated load current IL | 80 A |
| Protective conductor current IPE | ≤ 1.5 mA |
| Standby power consumption PC | ≤ 1200 mVA |
| Nominal discharge current In (8/20) µs | 15 kA |
| Maximum discharge current Imax (8/20) µs | 30 kA |
| Short-circuit current rating ISCCR | 25 kA |
| Voltage protection level Up | ≤ 2.9 kV |
| Residual voltage Ures | ≤ 2.9 kV (at In) |
| ≤ 2.7 kV (at 10 kA) | |
| ≤ 2.5 kV (at 5 kA) | |
| ≤ 2.3 kV (at 3 kA) | |
| TOV behavior at UT | 1000 V AC (5 s / withstand mode) |
| 1056 V AC (120 min / safe failure mode) | |
| Response time tA | ≤ 25 ns |
| Max. backup fuse with V-type through wiring | 80 A (gG) |
| Max. backup fuse with branch wiring | 100 A (gG) |
| Ambient conditions | |
| Degree of protection | IP20 (only when all terminal points are used) |
| Ambient temperature (operation) | -40 °C ... 80 °C |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Altitude | ≤ 2000 m (amsl) |
| Permissible humidity (operation) | 5 % ... 95 % |
| Shock (operation) | 25g (Half-sine / 11 ms / 3x ±X, ±Y, ±Z) |
| Vibration (operation) | 5g (10 ... 500 Hz / 2.5 h / X, Y, Z) |
| UL specifications | |
| Maximum continuous operating voltage MCOV (L-L) | 1500 V AC |
| Maximum continuous operating voltage MCOV (L-G) | 750 V AC |
| Nominal discharge current In (L-L) | 10 kA |
| Nominal discharge current In (L-G) | 10 kA |
| Mode of protection | L-L |
| L-G | |
| Nominal voltage | 690 V AC |
| Power distribution system | Delta |
| Nominal frequency | 50/60 Hz |
| Measured limiting voltage MLV (L-L) | 4810 V |
| Measured limiting voltage MLV (L-G) | 2560 V |
| SPD Type | 4CA |
| UL connection data | |
| Tightening torque | 30 lbf-in. |
| Conductor cross section AWG | 14 ... 2 |
| Standards/specifications | IEC 61643-11 |
| Note | 2011 |
| Standards/specifications | EN 61643-11 |
| Note | 2012 |
| Mounting type | DIN rail: 35 mm |
Your advantages
Quality proven millions of times over in the widest range of applications
Rapid installation with bridges, thanks to industry-standard overall width of 1 HP
Easy testing and insulation measurement, thanks to pluggable protection modules
Can be used in high-performance industrial networks and wind turbine generators (stator) due to the high nominal voltage