LC1D80008E7

What type of load is this contactor designed to switch?

It is intended primarily for resistive loads under utilisation category AC-1, with a rated operational current of 125 A (at up to 60 °C) at up to 440 V AC.

How many poles and what contact arrangement does it have?

It is a 4-pole device with a contact arrangement of 2 normally open (NO) and 2 normally closed (NC), allowing simultaneous switching of multiple circuits.

What control coil voltage does it require?

The control coil is rated for 48 V AC at 50/60 Hz (control circuit type: AC). This is the coil supply you should provide for reliable operation.

Does it include a built-in coil suppressor?

No. The coil technology is specified as without a built-in suppressor module, so any suppression (if required by your design) would be implemented externally.

What are the rated operational voltage limits for the power circuit?

The power circuit is rated for up to 690 V AC (25…400 Hz) and up to 300 V DC, depending on the application and standards used in your installation.

What is the inrush and hold-in power consumption of the coil?

Typical coil consumption is 245 VA inrush and 26 VA hold-in (at 20 °C, for 50/60 Hz operation).

What are the typical closing and opening times?

Operating times are specified as 20–35 ms for closing and 6–20 ms for opening.

How frequently can it be switched?

The maximum operating rate is specified as up to 3600 cycles per hour at 60 °C (subject to correct application, load type, and installation conditions).

What are the mechanical and electrical endurance ratings?

Mechanical durability is specified as 4 million cycles. Electrical durability is specified as 0.8 million cycles at 125 A in AC-1 duty (up to 440 V AC).

What is the degree of protection (IP rating)?

The front face is rated IP20, which provides finger protection but is not sealed against water or dust ingress.

What mounting options are supported?

It is suitable for mounting on a plate or on a rail, giving flexibility for control panel layouts.

What cable sizes can be connected to the terminals?

Control circuit screw clamp terminals accept 1…2.5 mm² (flexible with cable end) and up to 1…4 mm² (solid or flexible without cable end). Power circuit connectors accept 4…50 mm² (single conductor) or 4…25 mm² (two conductors), with certain configurations allowing flexible conductors with cable ends (e.g., up to 4…16 mm² for two conductors with cable ends).

What tightening torque should be used for the terminals?

Typical tightening torque values are 1.2 N·m for the control circuit screw clamp terminals and 12 N·m for the power circuit connectors.

What environmental conditions is it designed to withstand?

Permissible ambient temperature around the device is -40…60 °C, with operation possible up to 70 °C with derating. It is also specified for operation up to 3000 m altitude without temperature derating.

What short-circuit coordination guidance is provided for upstream fusing?

Associated gG fuse ratings are specified as 160 A for coordination type 2 and 200 A for coordination type 1 (at up to 690 V), supporting coordination design depending on your protection objectives.

What insulation and impulse withstand ratings does it have?

It has a rated insulation voltage up to 1000 V (per IEC) and a rated impulse withstand voltage (Uimp) of 8 kV, supporting robust performance in industrial control panels.

Where is this type of 4-pole contactor commonly used in control panels?

A 4-pole, 2NO+2NC contactor is commonly used to switch multiple resistive circuits at once—such as heating banks, power distribution sections, or applications needing both normally-open and normally-closed power paths. The LC1D80008E7 is often selected when a 48 V AC control scheme is standard in the panel.