SD200A-16 Albright 24V Emergency Stop Switch with Auxiliary - Intermittent

£58.94  Excl. VAT
  (£70.73 Inc. VAT)
 Excl. VAT

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Weight:  500 g

Model:  SD200A-16
Bar Code:  DNA
Part Number:  SD200A-16
Brand:  Albright
Colour:  Black/Red
Voltage:  24V DC
Amperage:  200A
Material:  Copper/Silver/Bakelite
Coil type:  Intermittent

Pre-order and back-ordering are available with a current 9 to 12 week lead time. Telephone: +44 (0) 1924 823119 or Email us to discuss further requirements.

 Albright International 24Vdc heavy-duty emergency battery disconnect switch with intermittent coil and auxiliary microswitch.

  • Rated at 200A, 24Vdc intermittent coil.
  • Single pole.
  • Internal fixing screws at 48mm centres.
  • Two M8 hex bolts for battery cable fixing.
  • An enclosed top cover is fitted.

About the Albright SD200 Emergency Stop Switch

 The SD200 combines the dual function of a manual disconnect and coil-operated line contactor. The benefits of this design include compact size and reduced installation costs combined with an electrical capacity sufficient for most small and medium-size electric vehicles.

 The SD200 has been designed to provide a rapid means of disconnecting batteries or other power supplies in the event of serious electrical faults.

 The operation of the switch is such that with the operating knob depressed i.e. in the “off” position, no electrical functions can take place. However, if the knob is in the “On” position, the option of energising the coil and thus closing the main contacts becomes available. The coil energisation can be carried out either through the vehicle keyswitch or as a result of a signal from the vehicle electronic controller. When used as an emergency battery disconnect switch, manually depressing the operating knob will override the energised coil such that the main contact and the auxiliary contact (where fitted) will open until such time as the knob is again moved to the “on” position.

 Whilst the switches are primarily intended for use with battery-powered vehicles, they are also suitable for use with static power systems. All types are capable of safely rupturing full load battery currents in the event of an emergency.

Uninterrupted Current: No or infrequent load switching requirements (maintains a lower contact resistance).


Application Uninterrupted
Device Type SP On-Off 
Coil Type Intermittent
Coil Voltage 24Vdc
Thermal Current Rating (Ith) 200 Amps
Coil Resistance (Ohms) 29
Pull-In Voltage (V) 14.5 Max.
Drop Out Voltage (V) 6.0 Max.
Coil Power Dissipation (W) 19.86
Intermittent Current Rating 30% Duty 365A
40% Duty 315A
50% Duty 285A
60% Duty 260A
70% Duty 240A
Typical Voltage Drop Per Pole
Across New Contacts At 200A
Operating Ambient Temperature -40 to +60℃
Weight 500g


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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