2pcs Relay Module Control Board Din Rail Mount DC PLC 4 Channel 1 No. 1 NC BEM1S-4mz AC 250V 1. Maintain Separately: This relay module control board have a pluggable base, easy to replace, each relay can be maintained separately 2. Save installation space: the size is smaller and the installation space is saved compared to the traditional relay, more convenient 3. High sensitivity: the relay module comes with large capacity and high sensitivity. 4 channel module number, the form is 1 open and 1 closed 4. DIN rail mounting: adopt DIN rail mounting method, support rated current and voltage 12A DC 30V, 12A AC 250V, very flexible 5. For industrial equipment: relay module PLC DC is suitable for industrial equipment, cabinet programmable logic controller, CNC lathe etc., very practical Specification: Item type: relay module control board Product material: ABS + stainless steel + brass Product model: BEM1S-4MZ Number of module: 4 channel Form: 1 open and 1 closed Rated current and voltage: 12A DC 30V, 12A AC 250V Coil voltage: AC DC 0-220V Installation method: DIN rail mounting Product quantity: 2Pcs Scope of application: suitable for industrial equipment, Cabinet Programmable Logic Controller, CNC Lathes Package List: 2 x Relay Module Control Board Note: Check whether the control voltage of the relay module is consistent with the system voltage.