RU280B-5001 Albright Single-acting 12V 350A Contactor - Intermittent
Despatch: 9 to 12 Weeks
Weight: 760 g
Bar Code: DNA
Part Number: RU280B-5001
Voltage 12V DC
Coil type Intermittent
Pre-order and back-ordering is available with a current 9 to 12 weeks despatch. Telephone: +44 (0) 1924 823119 or Email us to discuss further requirements.
Albright RU280B-5001 single-acting 12Vdc 350 Amps solenoid contactor with magnetic blowouts, intermittent.
- 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.
- Magnetic blowouts are fitted in the cap as standard on this unit.
- Contacts repair kit part number: 2182-919
- 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 the 'B' suffix in the RU280B range) across both contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. The 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.) RU280B 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 mounting brackets. Mounting can be vertical or horizontal, when vertical the M10 contact studs should point upwards.
|Interrupted Current: The opening and closing on load with frequent switching (resulting in increased contact resistance). |
|Uninterrupted Current: No or infrequent load switching requirements (maintains a lower contact resistance). |
|Device Type ||SPST NO |
|Voltage ||12V D.C. |
|Coil Type ||Intermittent |
|Amps ||350 Amps |
|Coil Resistance (Ohms) ||5 |
|Pull-In Voltage (V) ||7.0 Maximum |
|Drop Out Voltage (V) ||3.0 Maximum |
|Coil Power Dissipation (W) ||28.80 |
|Typical Pull-In Time ||30ms |
|Typical Voltage Drop Per Pole |
Across New Contacts At 100A
|Operating Ambient Temperature ||-40 to +60℃ |
|Weight ||755g |
|Application ||Uninterrupted |
|Thermal Current Rating ||350A |
|Intermittent Current Rating: |
|30% Duty ||640A |
|40% Duty ||555A |
|50% Duty ||495A |
|60% Duty ||450A |
|70% Duty ||420A |
Free UK Mainland Postage and Packaging
Our Free UK Mainland Postage and Packaging Service offers unbeatable value for money. The free UK Standard shipping is automatically applied to your shopping cart page with no additional cost when you reach the £50.00 minimum order value.
We use Royal Mail Standard or Recorded Delivery for light, low-value orders and we use UPS, Parcel Force, and other major courier services for larger and more valuable consignments.
Our international customers will need to provide the exact Card Holder Address (Invoicee) as the first address for payment processing. Please note that PO Box addresses are not acceptable as delivery addresses by some couriers. All export orders must be placed and paid for online. Proforma Bank Transfer IBAN and SWIFT payment methods are available to create online.