SU280B-TBA011 Albright Single Acting 72V-80v 250A Contactor - Intermittent with Blowouts
Despatch: 6 to 8 Weeks
Part Number: SU280B-TBA011
Voltage: 72-80V DC
Coil type: Intermittent
Pre-order and back-ordering are available with a 6 to 8 week lead time. Telephone: +44 (0) 1924 823119 or Email us to discuss further requirements.
SU280B-TBA011 single acting, 72 to 80 volt dc 250 amp intermittent solenoid contactor with magnetic blowouts fitted.
- The SU280B series of contactors has been designed for direct current loads, particularly motors as used on small electric vehicles such as Industrial trucks, Airport tractors, etc., they have double breaking contacts with silver alloy contact tips, which are weld resistant, hardwearing and have excellent conductivity.
- Auxiliary switch kit part number: 2155-352.
- Height including terminals and coil base cap: 132mm.
- Coil width: 45mm.
- Cap width: 67mm.
- Cap depth: 47mm.
These contactors are of double break configuration and are fitted with magnetic blowouts (denoted by 'B' suffix in the SU280B range) across both contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts makes the contacts polarity sensitive and the Positive markings on the top cover of the contactor must be observed.
About Intermittent (Int.) SU280B Solenoids
Intermittent contactors by design are predominantly used for hydraulic functions on vehicles, they make and break quicker than continuous solenoids and are not recommended for prolonged contact periods.
The contactors have double breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. They are easy to install, with M5 tapped holes in the switch frame together with a range of available mounting brackets. Mounting can be vertical or horizontal, when vertical the M10 contact studs should point upwards
|Interrupted current - opening and closing on load with frequent switching (results in increased contact resistance).|
|Uninterrupted current - no or infrequent load switching requirements (maintains a lower contact resistance).|
|Device Type||SU280B SPST NO|
|Coil Power Dissipation||30 - 40 Watts|
|Typical Pull-In Time||30ms|
|Typical Voltage Drop Per Pole|
Across New Contacts At 100A
|Operating Ambient Temperature||-40 to +60℃|
|Thermal Current Rating||250A||350A|
|Intermittent Current Rating:|
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