DG77A / B industrial bistable (latching) power relay • Up to 80A /240VAC continuous rating • 30VDC maximum switching voltage • Single Coil & Twin Coil Latching • Manual test lever • Utility meters • Automotive / Electric Vehicle Battery Contacts Contact number & arrangement SPST-NO (1 Normally Open) Contact material AgSnO2 Max. switching voltage 250VAC / 30VDC Min. switching current / voltage 500mA/12VDC Max. continuous current 60A, 80A Max. switching current 60A, 80A Max. switching power 60A; 15000VA / 1680W 80A: 20000VA / 2240W Initial resistance ≤ 100mΩ, max. at 0.1A/6VDC Coil Rated voltage 9...48VDC Operating range of supply voltage See coil table 1 Rated power consumption Single coil 60A: 1.2W / 80A: 1.5W Twin coil 60A: 2.4W / 80A: 3W Insulation Insulation resistance >1000MΩ at 500VDC, 50%RH Dielectric strength coil to contact 4000Vrms, 1min (50Hz) between open contacts 1500Vrms, 1min (50Hz) Creepage & Clearance 8mm General Data Operating time (max.) mS 20 Release time (max.) mS 20 Electrical Life ops 1 x 104 Mechanical life ops 1 x 106 Dimensions Weight L x W x H 38.6 x 33 x 17mm (see drawings for detail) ≤ 45g Ambient temperature storage -40 to 70°C operating -40 to 70°C (Class F) Shock resistance Functional: 100m/s2 11mS; Destructive: 1000m/s2 Vibration resistance 10-55Hz: DA 1.5mm Humidity 98%RH, 40°C Page 1 of 3 Ref: DG77 090612JHM www.durakoolrelays.com Sales Department Tel: (888) 847-6552 DG77A / B industrial bistable (latching) power relay Coil Data Table 1 DC Coil Coil Voltage Code Single Coil Twin Coil* Nominal Voltage (VDC) SL09 TL09 9 SL12 TL12 SL24 TL24 SL48 TL48 Coil Resistance (Ω) ±10% Single Coil (1.5W) Twin Coil* (3W) Must operate voltage (VDC) 54 27.0 + 27.0 ≥ 6.75 12 96 48.0 + 48.0 ≥9 24 384 192 + 192 ≥ 18 48 1536 768 + 768 ≥ 36 Operate pulse length 50ms * NB: Latch & Reset coils must not be powered simultaneously. Ordering codes Contact Material Type D G 7 7 Contact arrangement - Cover protection and mounting - Coil code - - Contact Rating A - 60A B - 80A Contact Material 30 - AgSnO2 see Table 1 Contact Arrangement 21 - SPST-NO (1 Normally open) * 31 - SPST-NC (1 Normally closed)* * As delivered condition. Cover Protection Category 7 - Covered, dust cover Terminations and mounting* 1 - PCB coil terminals + Weld Terminals for contacts Straight power terminals 2 - PCB coil terminals + Weld Terminals for contacts Bent power terminal * Terminals are highly customizable. Please contact factory. Options NIL - Standard P*** - Custom (*** = unique identifier) Page 2 of 3 Ref: DG77 090612JHM www.durakoolrelays.com Sales Department Tel: (888) 847-6552 DG77A / B industrial bistable (latching) power relay Overall Dimensions Fig. 1 Bent Power Terminals Straight Power Terminals All dimensions in mm Fig. 2 Wiring Diagrams pin2 pin3 pin1 pin2 coil pin 1 +ve pin1 coil pin 3 release -ve coil pin 2 pin 1 operate +ve Twin Coil +ve -ve Single Coil Custom connection options: Illustrative examples showing with optional shunt or without. Notes: 1) All parameters, unless otherwise specified, are measured at an ambient temperature of 23°C. Specifications are subject to change without notice. E&OE. Page 3 of 3 Ref: DG77 090612JHM American Electronic Components Inc., 1101 Lafayette St. Elkhart, IN46516 www.durakoolrelays.com Sales Department Tel: (888) 847-6552 pin 2 release -ve operate +ve Fig. 3