VAL-MS-AR-T1/T2 75/FM
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Lightning/surge arrester type 1/2
2801492
The VAL-MS-AR T1/T2 75/FM is a high-capacity SPD for Type 1 lightning as well as Type 2 switching surge currents, ideal for applications with high load currents and high surge risk.
The VAL-MS BE-AR/FM base provides a disconnect that separates the field wire from the protected mode for field diagnosis and dry contacts for remote function monitoring. The base has independent input and output terminals on the same side with ground terminals on the opposite end. All terminals are high-current screw clamping for stripped or ferruled, solid or stranded wires.
Product details
| Product type | Surge protection for NEMA power supply units |
| Product family | VALVETRAB MS |
| IEC test classification | I / II |
| T1 / T2 | |
| T1 | |
| I | |
| EN type | T1 / T2 |
| T1 | |
| Type | DIN rail module, two-section, divisible |
| Surge protection fault message | Optical, remote indicator contact |
| Nominal voltage UN | 60 V DC |
| Nominal current IN | 76 A (at 30°C ambient temperature) |
| Indicator/remote signaling | |
| Connection name | Remote fault indicator contact |
| Switching function | Changeover contact, 1-pos. |
| Maximum operating voltage Umax. AC | 250 V AC |
| Max. operating current Imax | 1.5 A AC (250 V AC) |
| 1.5 A DC (30 V DC) | |
| Connection method | Screw terminal block |
| Tightening torque | 3 Nm ... 4.5 Nm (Ground) |
| 1.5 Nm ... 1.8 Nm (House) | |
| 2.5 Nm ... 3 Nm (Field) | |
| Conductor cross-section flexible | 1.5 mm² ... 35 mm² (16 mm strip length) |
| 0.5 mm² ... 15 mm² (10 mm strip length) | |
| 1.5 mm² ... 25 mm² (14 mm strip length) | |
| Conductor cross-section rigid | 1.5 mm² ... 35 mm² (16 mm strip length) |
| 0.5 mm² ... 15 mm² (10 mm strip length) | |
| 1.5 mm² ... 25 mm² (14 mm strip length) | |
| Conductor cross-section AWG | 15 ... 2 (16 mm strip length) |
| 20 ... 6 (10 mm strip length) | |
| 12 ... 4 (14 mm strip length) | |
| Remote fault indicator contact | |
| Connection method | Screw connection |
| Screw thread | M2 |
| Tightening torque, min | 0.25 Nm |
| Tightening torque | 2 lbf-in. ... 4 lbf-in. (UL) |
| Stripping length | 7 mm |
| Conductor cross-section flexible min. | 0.14 mm² |
| Conductor cross-section flexible max. | 1.5 mm² |
| Conductor cross-section, rigid min. | 0.14 mm² |
| Conductor cross-section, rigid max. | 1.5 mm² |
| Dimensional drawing |
|
| Width | 17.7 mm |
| Height | 160 mm |
| Depth | 77.5 mm |
| Color | black (RAL 9005) |
| black (RAL 9005) | |
| Flammability rating according to UL 94 | V0 |
| Housing material | PA |
| Direction of action | L-L / L-PE |
| Maximum continuous operating voltage UC | 75 V DC |
| Maximum continuous operating voltage UC (L-N) | 75 V DC |
| Rated load current IL | 55 A (with 6 AWG) |
| Nominal discharge current In (8/20) µs | 12.5 kA |
| Maximum discharge current Imax (8/20) µs | 50 kA |
| Total discharge current ITotal (8/20) µs | 50 kA |
| Total discharge current ITotal (10/350) µs | 12.5 kA |
| Voltage protection level Up | ≤ 0.7 kV |
| Total surge current (10/350) µs | 15 kA |
| Total surge current (8/20) µs | 50 kA |
| Max. backup fuse with branch wiring | 160 A |
| 160 A |
| Ambient conditions | |
| Degree of protection | IP20 (when disconnect closed) |
| IP20 | |
| Ambient temperature (operation) | -40 °C ... 80 °C |
| Altitude | max. 3000 m |
| Permissible humidity (operation) | 5 % ... 95 % |
| Permissible humidity (storage/transport) | 5 % ... 95 % |
| Shock (operation) | 10g |
| Vibration (operation) | 2g (0 Hz ... 200 Hz) |
| Mounting type | DIN rail mounting with additional retaining screw |
Your advantages
Separate field and house wire termination
Tool-free field wire disconnect and test point
IP20 touch safe when connected
T1/T2 plugs provide lightning and surge current class protection