RU280B-5004 Albright Single-acting 24V 350A Contactor - Continuous

£72.60  Excl. VAT
  (£87.12 Inc. VAT)
 Excl. VAT

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Pre-order
Despatch: 9 to 12 Weeks

Weight:  760 g


Model:  RU280B-5004
Bar Code:  DNA
Part Number:  RU280B-5004
Brand:  Albright
Colour  Black
Voltage  24V DC
Amperage  350A
Material  Copper/Silver/Bakelite/Steel
Coil type  Continuous

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-5004 single-acting 24Vdc 350 Amps solenoid contactor with magnetic blowouts, continuous.

  • 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.

Dimensions

  • Height including terminals and coil base cap: 132mm.
  • Coil width: 45mm.
  • Cap width: 67mm.
  • Cap depth: 47mm.

Magnetic Blowouts

 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 Continuous (CO.) RU280 Solenoids

 Continuous contactors by design are predominantly used for drive functions on vehicles, they make and break slower than intermittent solenoids and are 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).

Specifications

Device Type SPST NO
Voltage 24V D.C.
Coil Type Continuous
Amps 350 Amps
Coil Resistance (Ohms) 44
Pull-In Voltage (V) 16.0 Maximum
Drop Out Voltage (V) 6.0 Maximum
Coil Power Dissipation (W) 33.88
Typical Pull-In Time 30ms
Typical Voltage Drop Per Pole
Across New Contacts At 100A
40mV
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

Delivery Options 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.

International 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.


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