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Bistable switches, also known as latching relays, are a unique type of switch that maintain their state even when the power supply is disconnected. They have two stable states, typically "on" and "off," and remain in the last set state until a signal triggers a change. This characteristic differentiates bistable switches from standard relays, which revert to their default state upon power loss.
The RBS Series of Bistable Switches offers a range of options, including one, two, three, and four-pole configurations. These switches are designed for DIN rail mounting and come in one- or two-module widths. The series is suitable for use with AC and DC control voltages and supports a variety of rated operational currents.
MR-41: This single-module, DIN rail-mounted switch features one changeover contact with a 16A/AC1 rating. It operates on a universal supply voltage of AC/DC 12V-240V or 230V AC. The MR-41 is designed to retain its state when power is disconnected, returning to the previous state upon re-energization.
MR-42: Similar to the MR-41, this switch is also DIN rail-mounted with a universal supply voltage range. However, it offers two changeover contacts, each with a 16A/AC1 rating. It provides options for two parallel contacts or configuring one relay as latching. Function selection is achieved through an external wire link between terminals B1 and B2.
Bistable switches are valuable in applications where state retention is crucial. Some examples include:
Advantages of Bistable Switches
Bistable switches offer several benefits, making them suitable for various applications:
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