VAL-MS-T1/T2 48/12.5/1+1V
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Lightning/surge arrester type 1/2
2801532
Universal varistor-based plug-in lightning/surge arrester for 48 V DC applications with grounded return conductor (positive pole), without risk assessment for Lightning Protection Levels III and IV.
Product details
| Product type | Arrester combination |
| Product family | VALVETRAB MS |
| IEC test classification | I / II |
| T1 / T2 | |
| EN type | T1 / T2 |
| IEC power supply system | TN-S |
| Type | DIN rail module, two-section, divisible |
| 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 | 35.6 mm |
| Height | 89.8 mm |
| Depth | 77.5 mm (incl. DIN rail 7.5 mm) |
| Horizontal pitch | 2 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 |
| Mechanical data | |
| Open side panel | No |
| Mode of protection | L-N |
| N-PE | |
| L-PE | |
| (L+) - (L-) | |
| (L+) - PE | |
| (L-) - PE | |
| Direction of action | L-L / L-PE |
| Nominal voltage UN | 60 V AC ±10 % (TN-S) |
| 60 V DC ±10 % | |
| -48 V DC ±10 % (RRH) | |
| Nominal frequency fN | 50 Hz (60 Hz) |
| Maximum continuous operating voltage UC | 75 V AC |
| 100 V DC | |
| Rated load current IL | 80 A |
| Protective conductor current IPE | ≤ 0.6 mA |
| Standby power consumption PC | ≤ 90 mVA |
| Nominal discharge current In (8/20) µs | 12.5 kA |
| Maximum discharge current Imax (8/20) µs | 30 kA |
| Impulse discharge current (10/350) µs, charge | 6.25 As |
| Impulse discharge current (10/350) µs, specific energy | 39 kJ/Ω |
| Impulse discharge current (10/350) µs, peak value limp | 12.5 kA |
| Total discharge current ITotal (8/20) µs | 50 kA |
| Total discharge current ITotal (10/350) µs | 12.5 kA |
| Short-circuit current rating ISCCR | 25 kA |
| Voltage protection level Up (L-N) | ≤ 0.4 kV |
| Voltage protection level Up (L-PE) | ≤ 0.8 kV |
| Voltage protection level Up (N-PE) | ≤ 0.4 kV |
| Voltage protection level Up (L+) - (L-) | ≤ 0.4 kV |
| Voltage protection level Up (L+) - PE | ≤ 0.4 kV |
| Voltage protection level Up (L-) - PE | ≤ 0.8 kV |
| Residual voltage Ures | ≤ 0.4 kV (at In) |
| ≤ 0.35 kV (at 10 kA) | |
| ≤ 0.3 kV (at 5 kA) | |
| ≤ 0.275 kV (at 4 kA) | |
| ≤ 0.25 kV (at 3 kA) | |
| TOV behavior at UT | 100 V AC (5 s / withstand mode) |
| 130 V DC (5 s / withstand mode) | |
| Response time tA | ≤ 25 ns |
| Max. backup fuse with V-type through wiring | 80 A (gG - 16 mm²) |
| Max. backup fuse with branch wiring | 160 A (gG) |
| Additional technical data | |
| Maximum discharge current Imax (8/20) µs | 65 kA |
| 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) | 30g (Half-sine / 11 ms / 3x ±X, ±Y, ±Z) |
| Vibration (operation) | 7.5g (10 ... 500 Hz / 2.5 h / X, Y, Z) |
| UL specifications | |
| Maximum continuous operating voltage MCOV (L+) - (L-) | 100 V DC |
| Maximum continuous operating voltage MCOV (L+) - G | 100 V DC |
| Maximum continuous operating voltage MCOV (L-) - G | 100 V DC |
| Short-circuit current rating (SCCR) | 5 kA |
| Voltage protection rating VPR (L+) - (L-) | 400 V |
| Voltage protection rating VPR (L+) - G | 400 V |
| Voltage protection rating VPR (L-) -G | 600 V |
| Nominal discharge current In (L+) - (L-) | 20 kA |
| Nominal discharge current In (L+) - G | 20 kA |
| Nominal discharge current In (L-) - G | 20 kA |
| Mode of protection | (L+) - (L-) |
| (L+) - G | |
| (L-) - G | |
| Nominal voltage | 60 V DC |
| SPD Type | 1CA |
| 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
Surge protection for (-) 48 V DC in lightning protection level III and IV due to discharge capacity of 12.5 kA per position
Vibration-resistant latching ensures the plug remains firmly in place