Why Choose the Lovato CNB2020024 Latching Relay?
The Lovato CNB2020024 is a compact and reliable two-pole latching relay designed for bistable switching of electrical loads using momentary control commands. As part of the Lovato CNB modular latching relay series, it is suited to electrical distribution, lighting control, building automation and industrial control panels where the switching state needs to be retained after the control pulse.
The CNB2020024 features two normally open (2NO) contacts and an IEC conventional free-air thermal current of 20 A. Its 24 V AC auxiliary supply makes it suitable for low-voltage control circuits, while integrated manual control provides convenient local operation during commissioning, testing and normal system use.
Occupying only one DIN module, the CNB2020024 combines compact installation with a mechanical endurance of up to 3,000,000 cycles. Standard 35 mm DIN rail mounting, IP20 frontal protection and power terminals accepting conductors up to 10 mm² make it a practical choice for professional modular electrical installations.
Key Advantages
- Compact bistable latching relay for modular electrical installations.
- 20 A AC-1 conventional thermal current for suitable electrical loads.
- Two normally open contacts provide simultaneous two-pole switching.
- 24 V AC control supply for low-voltage control systems.
- Integrated manual control enables convenient local switching.
- Single-module DIN rail construction minimises space requirements inside electrical panels.
Key Features
- Lovato CNB modular latching relay series.
- 20 A conventional free-air thermal current Ith.
- Two-pole, 2NO contact configuration.
- 24 V AC auxiliary rated supply voltage.
- 440 V rated insulation voltage Ui.
- 4 kV rated impulse withstand voltage Uimp.
- Integrated manual control.
- One DIN module construction.
- 35 mm DIN rail mounting.
- IP20 frontal protection rating.
- Mechanical endurance of up to 3,000,000 cycles.
- Power terminals accept conductors from 1–10 mm².
Reliable Latching Control for Electrical Switching
Latching relays such as the Lovato CNB2020024 change and retain their switching state in response to control pulses. This bistable operation allows the contacts to remain in their selected state without requiring the control coil to remain continuously energised, making latching relays particularly useful for lighting and remote switching systems.
The CNB2020024 combines a 24 V AC control circuit with two normally open contacts and a 20 A conventional thermal current rating. Its compact one-module construction, manual control and long mechanical endurance make it well suited to building automation, electrical distribution and industrial control applications.
Typical Applications
- Lighting control and switching circuits.
- Building automation and electrical distribution systems.
- Industrial electrical control panels.
- Remote switching from momentary push buttons.
- Modular control and distribution boards.
- OEM electrical equipment and panel-building applications.
