STANDARD SU280
NO - SP - ST
The SU280 has been designed for direct current loads, particularly motors as used on electronic vehicles such as industrial trucks and airport tractors.
The contactors have double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity. They are easy to install, with M5 tapped holes in the switch frame together with a range of mounting brackets. Mounting can be vertical or horizontal, when vertical the M10 contact studs should point upwards. If the requirement is for downwards orientation we can adjust the contactor to compensate for this.
SU280 Technical Information
| Application | ||
| Thermal Current Rating | 250A | 350A |
| Intermittent Current Rating: | ||
| 30% Duty | 455A | 640A |
| 40% Duty | 395A | 555A |
| 50% Duty | 355A | 495A |
| 60% Duty | 325A | 450A |
| 70% Duty | 300A | 420A |
| Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*) | ||
| Blowouts | 1500A at 96V D.C. | |
| No Blowouts | 1500A at 48V D.C. | |
| Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*) | ||
| Blowouts | 525A at 96V D.C. | |
| No Blowouts | 525A at 60V D.C. | |
| Maximum Recommended Contact Voltages | ||
| Blowouts | 96V | 96V |
| No Blowouts | 48V | 60V |
| Typical Voltage Drop per pole across New Contacts at 250A | 40mV | |
| Mechanical Durability | > 3,000,000 Cycles | |
| Coil Voltage Available (Us) (Rectifier board required for A.C.) | 6 - 240V | |
SU280 Features
| Component | Configurations |
|---|---|
| Auxiliary |
STANDARD  STANDARD - GOLD  V3  V3 - GOLD |
| Coil Suppression |
 DIODE  DIODE AND RESISTOR  BI-DIRECTIONAL DIODE |
| Coil Terminations |
 AMP TAGS  FLYING LEADS  PLUG  VACCUM IMPREGNATION |
| Mounting Options |
 Top Hat Bracket Kit  'L' Shaped Bracket Kit  Curved Bracket Kit |