SW181B-4 Albright 24V Single Pole Double Throw Solenoid Contactor - Continuous

£58.36  Excl. VAT
  (£70.03 Inc. VAT)


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Pre-order
Despatch: 6 to 8 Weeks

Weight:  830g


Model:  SW181B-4
Part Number:  SW181B-4
Brand:  Albright
Colour:  Black
Voltage:  24V DC
Amperage:  150A
Material:  Copper/Silver/Bakelite
Coil type:  Continuous

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.


 SW181B-4 single pole, double throw solenoid contactor 24 volt dc continuous.

  • The SW181B-4 has been designed for 24V direct current (DC) loads, including motors as used on electric vehicles such as industrial trucks.
  • Developed for both interrupted and uninterrupted loads, the SW181 is suitable for switching Resistive, Capacitive and Inductive loads.

Associated Products

  • 2180-43 Albright SW181 Series Contact Kit
  • 2180-43A Albright SW181L Series Contact Kit - Large Tips
  • 2180-796 Auxiliary Micro-Switch for Larger Albright SW Range Contactor Caps
  • 2159-47 Mounting Bracket.
  • 2155-165 Mounting bracket.
  • 2065-167A Mounting bracket.

Magnetic Blowouts

 These contactors are fitted with magnetic blowouts (denoted by 'B' suffix in the SW181B range) across contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts can make the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.

About Continuous (CO.) SW181B-4 Solenoids

 Continuous contactors by design are predominantly for drive functions on vehicles, they have weaker coils, switch slightly slower than intermittent solenoids and are recommended for prolonged contact periods.

 The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.

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).

Specifications

Device Type SW181 SPDT Contactor
Voltage 24V D.C.
Coil Type Continuous
Amps 150 amp
Typical Voltage Drop Per Pole
across New Contacts at 150A
Normally Open: 40mV
Coil Resistance (Ohms) 44
Pull In Voltage (V) 16.0 Maximum
Drop Out Voltage (V) 6.0 Maximum
Coil Power Dissipation (W) 13.09
Application Interrupted Uninterrupted
Thermal Current Rating 150A 150A
Intermittent Current Rating:
30% Duty 275A 275A
40% Duty 235A 235A
50% Duty 210A 210A
60% Duty 195A 195A
70% Duty 180A 180A

 

Free UK Mainland Postage and Packaging

Delivery Options Free UK Mainland delivery discount is selectable on your shopping cart page; a £50.00 minimum order value is applicable for the Free Delivery Service, with a variable low Standard Rate shipping charge for smaller consignments.
 Despatch methods for Standard and Free UK Delivery Service include light, low-value orders despatched via Royal Mail standard or recorded delivery, with large and high-value orders despatched via UPS and Parcel Force courier services.

International Consignments

 International orders and consignments require the exact Card Holder Address (Invoicee) as the first address for payment processing. PO Box addresses are not acceptable as delivery addresses by some couriers.
 Export orders will only be accepted when placed online.


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