RU280
NO - SP - ST
The Reduced Silver series are suitable for applications where infrequent switching is specified. In such applications the degradation of the tip is minimal and therefore a higher volume of silver is unnecessary.
Developed for Uninterrupted current applications the RU280 is typically used in line contactors or Power Distribution Systems.
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.
RU280 Technical Information
| Application | ||
| Thermal Current Rating | - | 350A |
| Intermittent Current Rating: | ||
| 30% Duty | - | 640A |
| 40% Duty | - | 555A |
| 50% Duty | - | 495A |
| 60% Duty | - | 450A |
| 70% Duty | - | 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 | |
RU280 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
|
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