Official DistributorSKU
MPN
VAL-MS-T1/T2 48/12.5/1+1/1U/FM
Weight
0.242 kg
Series VAL-MS-T1
VAL-MS-T1/T2 48/12.5/1+1/1U/FM - Lightning/surge arrester type 1/2
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, with remote indication contact.
- Dual-channel, panel mountable surge protective device
- Orthogonal mounting orientation to plug
- Base element with floating remote indication contact
- Rack-mount 1U panel applications
Technical Specifications
Product properties
| Product family | VALVETRAB MS |
| IEC test classification | I / II |
| IEC test classification | T1 / T2 |
| IEC test classification | I |
| EN type | T1 / T2 |
| IEC power supply system | TN-S |
| Type | DIN rail module, two-section, divisible |
| Surge protection fault message | Optical, remote indicator contact |
Insulation characteristics
| Pollution degree | 2 |
Electrical properties
| Nominal frequency fN | 50 Hz (60 Hz) |
Indicator/remote signaling
| Connection name | Remote fault indicator contact |
| Switching function | Changeover contact |
| Operating Voltage | 5 V AC ... 250 V AC |
| Operating Voltage | 125 V AC (UL) |
| Operating Voltage | 125 V DC (200 mA DC) |
| Operating current | 5 mA AC ... 1.5 A |
| Operating current | 1 A (UL) |
| Operating current | 1 A (30 V DC) |
Connection data
| Connection Method | Screw connection |
| Screw thread | M5 |
| Tightening torque | 2.5 Nm ... 3 Nm |
| Tightening torque | 22 lbf-in. ... 26.5 lbf-in. (UL) |
| Stripping length | 16 mm |
| Conductor cross section flexible min. | 1.5 mm² |
| Conductor cross section flexible max. | 25 mm² |
| Conductor cross section, rigid min. | 1.5 mm² |
| Conductor cross section, rigid max. | 35 mm² |
| Conductor cross section AWG | 15 ... 2 |
| Conductor cross section AWG | 10 ... 2 (UL) |
Remote fault indicator contact
| Connection Method | Push-in spring connection |
| Stripping length | 6 mm |
| Conductor cross section flexible min. | 0.2 mm² |
| Conductor cross section flexible max. | 0.5 mm² |
| Conductor cross section, rigid min. | 0.14 mm² |
| Conductor cross section, rigid max. | 0.5 mm² |
| Conductor cross section AWG | 24 ... 20 (UL) |
Dimensions
| Width | 70.6 mm |
| Height | 40.6 mm |
| Height unit | 1 U |
| Depth | 98.1 mm |
Material specifications
| Color | gray (RAL 7042) |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V-0 |
| Housing Material | PA 6.6 |
| Housing Material | PBT |
Mechanical data
| Open side panel | No |
Protective circuit
| Mode of protection | L-N |
| Mode of protection | N-PE |
| Direction of action | L-N & L(N)-PE |
| Nominal voltage UN | 60 V AC ±10 % (TN-S) |
| Nominal voltage UN | -48 V DC ±10 % (RRH) |
| Nominal frequency fN | 50 Hz (60 Hz) |
| Maximum continuous voltage UC | 75 V AC |
| Maximum continuous voltage UC | 100 V DC |
| Rated load current IL | 80 A |
| Residual current IPE | ≤ 0.6 mA |
| Standby power consumption PC | ≤ 45.00 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 |
| Short-circuit current rating ISCCR | 25 kA |
| Voltage protection level Up | ≤ 0.4 kV |
| Residual voltage Ures | ≤ 0.4 kV (at In) |
| Residual voltage Ures | ≤ 0.35 kV (at 10 kA) |
| Residual voltage Ures | ≤ 0.3 kV (at 5 kA) |
| Residual voltage Ures | ≤ 0.275 kV (at 4 kA) |
| Residual voltage Ures | ≤ 0.25 kV (at 3 kA) |
| TOV behavior at UT | 100 V AC (5 s / withstand mode) |
| TOV behavior at UT | 130 V DC (5 s / withstand mode) |
| Response time tA | ≤ 25 ns |
| Max. backup fuse with V-type through wiring | 80 A AC (gG - 16 mm²) |
| Max. backup fuse with branch wiring | 160 A AC (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-N) | 75 V AC |
| Maximum continuous operating voltage MCOV (L-N) | 100 V DC |
| Mode of protection | N-G |
| Mode of protection | L-N |
| Mode of protection | (L+) - (L-) |
| Mode of protection | (L+) - G |
| Mode of protection | (L-) - G |
| Nominal Voltage | 60 V DC |
| SPD Type | 1CA |
UL indicator/remote signaling
| Operating Voltage | 125 V AC |
| AC operating current | 1 A AC |
UL connection data
| Tightening torque | 30 lbf-in. |
| Conductor cross section AWG | 10 ... 2 |
Mounting
| Mounting Type | Panel mount |
Accessories
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Additional Information
| Pack Size | 1 |
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