Albright HD Switch Controlled Battery Isolator 12v

The Albright SU280 series contactor is perfectly suited for winch isloation or heavy duty battery split charge systems.They have double breaking main contacts with silver alloy contact tips, which are weld resistant, hard wearing and have excellent conductivity.

Mounting is by means of 5mm tapped holes in the switch frame together with a range of mounting brackets complete with screws and washers.

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12V DC coil, coil connections are by means of 6mm spades of which two are supplied per terminal.

Main Contact Configuration
SP ST NO
STUD, M10

Thermal Current Rating 100%
250A

Intermittent Current Rating
30% Duty ‚ ‚  ‚ 450A
40% Duty ‚ ‚  ‚ 390A
50% Duty ‚ ‚  ‚ 360A
60% Duty ‚ ‚  ‚ 320A
70% Duty ‚ ‚  ‚ 300A

Typical fault currents which can be ruptured
(5ms time constant)
Without Blowouts ‚ ‚  ‚ 1500A at 48V D.C.
With Blowouts ‚ ‚  ‚ 2500A at 48V D.C.
With Blowouts ‚ ‚  ‚ 1500A at 80V D.C.

Maximum Recommended Contact Voltages
(Inductive Load)
Without Blowouts ‚ ‚  ‚ 48V D.C.
With Blowouts ‚ ‚  ‚ 96V D.C.

Typical Voltage Drop Across Contacts per 100A
Normally Open ‚ ‚  ‚ 40mV

Mechanical Life
>5 x 106

Coil power dissipation
Very Intermittent (HO) ‚ ‚  ‚ 40-50 Watts
Intermittently rated types(INT) ‚ ‚  ‚ 30-40 Watts
Prolonged rated types (PO) ‚ ‚  ‚ 15-30 Watts
Continuously rated types (CO) ‚ ‚  ‚ 10-15 Watts

Maximum pull-in voltage
Intermittently rated types ‚ ‚  ‚ 60%V
Continuously rated types ‚ ‚  ‚ 66%V

Typical drop-out voltage
10-20%

Typical pull-in time
(n/o contacts to close) ‚ ‚  ‚ 30ms

Typical drop-out time
(n/o contacts to open) ‚ ‚  ‚ 
Without suppression ‚ ‚  ‚ 8ms
With diode suppression ‚ ‚  ‚ 60ms
With diode and resistor (depending on value) ‚ ‚  ‚ 25ms

Typical contact bounce period
3ms

Auxiliary contact thermal current rating
5A

Auxiliary Contact Switching Capacities (Resistive Load)
5A at 24V D.C.
2A at 48V D.C.
0.5A at 240V D.C.

Recommended Mounting Orientation
Horizontal or Vertical, if vertical coil at bottom.