Why Choose the Lovato CNB2020012 Latching Relay?
The Lovato CNB2020012 is a compact two-pole latching relay designed for switching electrical loads from momentary control commands. As part of the Lovato CNB modular latching relay series, it provides a practical bistable switching solution for electrical distribution, building control and industrial panel applications where the contact state must be retained after the control pulse.
The CNB2020012 provides two normally open (2NO) contacts with a conventional free-air thermal current of 20 A and uses a 12 V AC control supply. Manual control is incorporated for convenient local operation, while the latching mechanism avoids the need for the coil to remain continuously energised to maintain the selected switching state.
Occupying only one DIN module, the CNB2020012 provides high switching capability in a compact modular format. It mounts directly onto a standard 35 mm DIN rail and combines an IP20 frontal protection rating with a mechanical life of up to 3,000,000 cycles for dependable service in suitable electrical enclosures.
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.
- 12 V AC control supply for low-voltage control circuits.
- Manual control enables convenient local switching and operation.
- Single-module DIN rail design 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.
- 12 V AC auxiliary rated supply voltage.
- 440 V rated insulation voltage Ui.
- 4 kV rated impulse withstand voltage Uimp.
- Integrated manual control.
- Compact one DIN module construction.
- 35 mm DIN rail mounting.
- IP20 frontal protection.
- 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 CNB2020012 change and retain their switching state in response to control pulses. Unlike conventional continuously energised relays, the latching mechanism allows the selected contact state to remain mechanically maintained after the control command, helping reduce continuous coil energisation in suitable control applications.
The CNB2020012 combines a 12 V AC control circuit with two normally open switching contacts and a 20 A conventional thermal current rating. Its one-module DIN rail construction and manual control make it particularly suitable for compact distribution boards, building control equipment and industrial electrical panels requiring dependable bistable switching.
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.
