Thermal Overload Relays - Schneider Electric

Schneider Electric LRD3253 is a differential thermal overload relay belonging to the LRD sub-range. It features a 3-pole configuration and offers direct connection to a contactor for upstream connections, with outgoing cables and control circuit connections utilizing spring-type fast connections. This relay is designed for a rated current of 17-25 A and operates within a protection setting range of 17-25A for thermal overload. It includes 1 Normally Open (NO) auxiliary contact and 1 Normally Closed (NC) auxiliary contact. The LRD3253 is capable of handling a rated voltage (AC) of up to 690 V at frequencies ranging from 0 to 400Hz. Its operational current range is specified from a minimum of 17 A to a maximum of 25 A, and it is classified under protection class 10A.

Schneider Electric LRD3186 is a differential thermal overload relay designed for direct connection to a contactor and features screw-clamp terminals for the control circuit. This 3-pole device offers protection functions classified under Class 10A, with a rated current range of 12-18 A. It includes protection settings for thermal overload within the same current range. The LRD3186 is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. It supports a rated voltage (AC) for phase-to-phase connections up to 690 V at frequencies ranging from 0 to 400Hz. The minimum operating current is 12 A, and the maximum current capacity is 18 A.

Schneider Electric LRD3133 is a differential thermal overload relay designed for direct connection to a contactor with spring-type fast connections for both upstream and outgoing cables, as well as the control circuit. It features 3 poles and offers protection functions classified under Class 10A. The LRD3133 operates within a rated current range of 9-13 A, with protection settings specifically for thermal overload between 9-13A. It is equipped with 1 Normally Open (NO) auxiliary contact and 1 Normally Closed (NC) auxiliary contact. The rated voltage for phase-to-phase connections is up to 690 V, accommodating frequencies from 0 to 400Hz. The minimum operating current is set at 9 A, with a maximum threshold of 13 A.

Schneider Electric LRD14L6 is a differential thermal overload relay designed for direct connection to a contactor, with outgoing cables connected via lugs and a control circuit utilizing screw-clamp connections. This 3-pole device offers protection functions classified under Class 20, with a rated current range of 7-10 A. It features protection settings for thermal overload within the same range (7-10A) and includes 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. The rated voltage for phase-to-phase operation is up to 690 V (0-400Hz), with a minimum operating current of 7 A and a maximum of 10 A.

Schneider Electric LRD05L6 is a differential thermal overload relay designed for direct connection to a contactor and features screw-clamp terminals for the control circuit. This 3-pole device offers protection functions classified under Class 20, with a rated current range of 0.63-1 A. It includes protection settings for thermal overload within the same current range. The LRD05L6 is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts, supporting a rated voltage (AC) phase-to-phase of up to 690 V at frequencies from 0 to 400Hz. The minimum and maximum current specifications are set at 0.63 A and 1 A, respectively.

Schneider Electric LR7K0312 is a non-differential thermal overload relay designed for unbalanced networks, belonging to the LR7K sub-range. It features a 3-pole configuration and offers protection functions classified under Class 10A. The relay supports a rated current range of 3.7-5.5 A with protection settings adjustable within the same range. Connection types include direct to contactor for upstream connections and screw-clamp terminals for both outgoing cables and the control circuit. It is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. The rated voltage for phase-to-phase connections is up to 690 V, with the minimum and maximum current settings specified at 3.7 A and 5.5 A, respectively.

Schneider Electric LR3D3506 is a non-differential thermal overload relay designed for unbalanced networks, belonging to the LR3D sub-range. It features a direct connection type to the contactor for upstream connections, with outgoing cables connected via lugs and a control circuit connected through screw-clamp terminals. This 3-pole relay is engineered for a rated current of 37-50 A, with protection settings adjustable within the same range. It includes 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts for enhanced control flexibility. The LR3D3506 is capable of handling a rated voltage (AC) of up to 690 V at frequencies ranging from 0 to 400Hz, with a minimum operating current of 37 A and a maximum of 50 A.

Schneider Electric LR3D3406 is a non-differential thermal overload relay designed for unbalanced networks, falling within the LR3D sub-range. It features a direct connection type to the contactor for upstream connections, with outgoing cables connected via lugs and a control circuit connected through screw-clamp terminals. This 3-pole relay is engineered for protection functions classified under Class 10A, with a rated current range of 30-40 A. The protection settings for thermal overload are adjustable between 30-40A. It includes 1 Normally Open (NO) auxiliary contact and 1 Normally Closed (NC) auxiliary contact. The rated voltage for phase-to-phase connections is up to 690 V for frequencies ranging from 0 to 400Hz. The minimum operating current is set at 30 A, with a maximum threshold of 40 A.

Schneider Electric LR3D32L6 is a non-differential thermal overload relay designed for unbalanced networks, falling within the LR3D sub-range. It features a direct connection to the contactor for upstream connections, with outgoing cables connected via lugs and a control circuit utilizing screw-clamp connections. This 3-pole relay is engineered for a rated current of 23-32 A, with protection settings adjustable within the same range. It includes 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts for enhanced functionality. The LR3D32L6 is capable of handling a phase-to-phase rated voltage (AC) of up to 690 V at frequencies ranging from 0 to 400Hz, with a minimum operating current of 23 A and a maximum of 32 A.

Schneider Electric LR3D318 is a non-differential thermal overload relay designed for unbalanced networks, classified under the LR3D range. It features a direct connection to the contactor for upstream connections and screw-clamp terminals for outgoing cables and the control circuit. This three-pole device offers protection functions with settings adjustable from 12 to 18A, suitable for Class 10A applications. It includes 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. The LR3D318 is rated for a phase-to-phase voltage of up to 690V (0-400Hz) and supports a minimum current of 12A and a maximum current of 18A.