- Designed for Direct Current loads, particularly motors as used on electronic vehicles such as industrial trucks and airport tractors.
- Developed for both interrupted and uninterrupted loads, the SU400 is suitable for switching Resistive, Capacitive and Inductive loads.
- M10 stud main terminals and 6.3mm spade coil connections.
- Adaptable Mounting options, in any orientation (seek technical advice for full mounting considerations)
Compliant with EN1175:2020
Spare Parts – Please consult our Technical Department, or download Spare Parts Sheet where available.
SU400 Technical Info
| Application | InterruptedRating (Ith) | UninterruptedRating (Ith) |
|---|---|---|
| Thermal Current Rating | 350A | 400A |
| Intermittent Current Rating: | ||
| 30% Duty | 640A | 730A |
| 40% Duty | 555A | 630A |
| 50% Duty | 495A | 565A |
| 60% Duty | 450A | 515A |
| 70% Duty | 420A | 480A |
| Rated Fault Current Breaking Capacity (lcn) 5ms Time Constraint: (In accordance with UL583*) | ||
| Blowouts | 1500A at 96V D.C. | |
| No Blowouts | 1500A at 48V D.C. | |
| Rated Fault Current Breaking Capacity (lcn) Resistive Load: (In accordance with UL508*) | ||
| Blowouts | 600A at 96V D.C. | |
| No Blowouts | 600A at 48V D.C. | |
| Maximum Recommended Contact Voltages | ||
| Blowouts | 96V | 96V |
| No Blowouts | 48V | 48V |
| Typical Voltage Drop per pole across New Contacts at 400A | 40mV | |
| Mechanical Durability | >3,000,000 Cycles | |
| Coil Voltage Available (Us) (Rectifier board required for A.C.) | >6 - 240V | |
SU400 Features
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| Component | Configurations |
|---|---|
| AC Rectifier | |
| Auxiliary | |
| Blowouts | |
| Coil Suppression | |
| Coil Termination | |
| Contact Tip | |
| Enclosed Top Cover | |
| Fixed Contact Terminal | |
| Magnetic Latching | |
| Mounting | |
| Steel Shroud EE | |
| Vacuum Impregnation |
