IM901 19120-S Bistable SPST PCB Latching Relay

IM901 19120-S Bistable SPST PCB Latching Relay :

The IVY IM601 (part number 19120-S, 16120-S, or similar) is a high-power, bistable SPST (Single Pole Single Throw) PCB magnetic latching relay designed for applications such as smart meters and EV chargers. It operates without continuous power consumption after switching, making it highly energy-efficient. 

• Type: Bistable Latching Relay (requires a momentary pulse to switch states).
• Contact Arrangement: SPST-NO (Normally Open, 1 Form A) is common, though other configurations like SPST-NC (1 Form B) may be available.
• Max Switching Current: 60 Amps (AC).
• Max Switching Voltage: 250 VAC.
• Coil Voltage: The “19120-S” designation suggests a 12VDC coil (nominal voltages from 6VDC to 48VDC are available for the IM601 series).
• Coil Configuration: Can be configured as single coil or dual coil (the suffix “-S” typically denotes a single coil version).
• Mounting: PCB Mount.
• Dimensions: 38 x 30 x 16.5 mm.
• Contact Material: AgSnO₂ (Silver Tin Oxide) alloy.
• Certifications: Meets various standards including IEC 62055-31 UC2/UC3 and IEC 62955. 

• Energy Efficiency: The relay consumes power only during the brief moment of switching (pulsed operation), not to maintain its state.
• Reduced Heat: No continuous current flow means less heat generation compared to standard monostable relays.
• Reliability: Long mechanical life (over 100,000 cycles) and electrical life (over 10,000 cycles at max load).
• Immunity: Features magnetic immunity to resist external magnetic field interference, a crucial feature for metering applications.