Polarized latching relay for automotive applications, with screw connections
Battery discharge during extended transit or storage of vehicles can lead to deterioration of the battery and subsequent warranty claims. The Gruner relay type 750 offers a simple and cost-effective solution, totally isolating the battery from the vehicles electrical circuits to eliminate quiescent drain. Another potential appli- cation is aimed at the use as a safety disconnect in the BMS of LiIon-Batteries.
The advantage of the polarized latching relay is the pulse driven operation of only 30 milliseconds to set and reset the relay, which results in low power consumption of the coil and no heating to the coil. The permanent magnet of the armature guarantees the extremely high holding force of the contacts which results in good vibration resistance.
The relays are designed and manufactured in accordance to the Standards of IEC 61810-1.
Technical data
Coil data
Rated power 12.0 W
Operating voltage range 6 … 16 VDC
Pulse to set 30 ms
Action time < 10 ms
Contact data
Max. contact arrangement 1 NO
Contact resistance typ. 300 μΩ
Bouncing time at 12V typ. < 1 ms
Contact material AgSnO2
Short-time overload (10 ms) 3,000 A
Max. make current 1,500 A
Max. break current1,500 A
Mechanical life 106
General data
Ambient temperature -40 ... +105 °C
Protection class IP 6K4K
Mech. shock, halfine, 11 ms, 6 directions (± x, y, z) 50 g
Dimensions 75.5 x 25 x 30 mm
Weight 85 g