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Lighting Contactors

Lighting Contactors

EE Controls LSN Series lighting contactors are electrically held, multi-pole switching devices rated for ballast and LED loads — available in normally closed (NC) and normally open (NO) configurations with coil voltages from 24VAC through 347/380VAC. UL 508, CSA, and IEC 60947 listed. In stock, ships same day.

Direct Replacement

The EE Controls LSN7 Series is the exact replacement for the AEG LS7K lighting contactor — same form factor, same ratings, same coil voltages, same NC/NO configurations. If you are looking for the AEG LS7K, the LSN7 is the current in-stock equivalent available now.

Normally Closed (NC)

Lights ON by Default

Coil must be energized to switch lights off. Choose NC for fail-safe applications — occupied spaces, egress zones, and circuits where lights must stay on during a control failure.

Normally Open (NO)

Lights OFF by Default

Coil must be energized to turn lights on. Choose NO for energy management — unoccupied zones, after-hours scheduling, and applications where lights-off on control failure is acceptable.

ZOT Supply stocks a full line of EE Controls LSN Series lighting contactors — electrically held, 4-pole and 3-pole designs available in normally closed (NC) and normally open (NO) configurations with coil voltages from 24VAC through 347/380VAC. All models are UL 508, CSA 22.2 #14, and IEC 60947 listed, rated for 30A or 60A ballast and LED loads at up to 600VAC, and suitable for use in commercial lighting control panels, building automation systems, and energy management applications across the United States and Canada.

What Is a Lighting Contactor?

A lighting contactor is an electrically held switching device designed specifically for controlling lighting loads — ballast, LED driver, and general purpose circuits — from a remote control signal. Unlike a standard power relay, lighting contactors are rated for the inrush characteristics of ballast and LED loads, available in multi-pole configurations to switch multiple circuits simultaneously, and designed for the continuous-duty cycles common in commercial lighting control. A single contactor with a 120VAC coil can be energized by a building automation system, time clock, occupancy sensor, or manual switch to control up to four lighting circuits from one device.

Replacing the AEG LS7K Lighting Contactor? The EE Controls LSN7 Is the Direct Replacement.

The AEG LS7K series lighting contactor was one of the most widely installed lighting contactors in North American commercial buildings for decades. The LSN7 series by EE Controls is the direct form-fit-function replacement — same 4-pole electrically held design, same 30A ballast and LED contact ratings, same coil voltage options (24VAC, 120VAC, 277VAC, 347/380VAC), and the same NC and NO configurations. If you have an AEG LS7K on a job or need to replace a failed unit in the field, the corresponding EE Controls LSN7 installs in its place.

ZOT Supply stocks the full LSN7 replacement line with same-day shipping on in-stock models. Cross-reference your AEG LS7K part number below to find the correct LSN7 replacement.

AEG LS7K-04-A → Replaced by LSN7-04-A 4-Pole NC • 120VAC • 30A
AEG LS7K-04-G → Replaced by LSN7-04-G 4-Pole NC • 24VAC • 30A
AEG LS7K-04-H → Replaced by LSN7-04-H 4-Pole NC • 277VAC • 30A
AEG LS7K-04-D → Replaced by LSN7-04-D 4-Pole NC • 347/380VAC • 30A
AEG LS7K-400-A → Replaced by LSN7-400-A 4-Pole NO • 120VAC • 30A
AEG LS7K-400-G → Replaced by LSN7-400-G 4-Pole NO • 24VAC • 30A
AEG LS7K-400-H → Replaced by LSN7-400-H 4-Pole NO • 277VAC • 30A
AEG LS7K-400-D → Replaced by LSN7-400-D 4-Pole NO • 347/380VAC • 30A
Normally Closed vs. Normally Open — Choosing the Right Configuration
Normally Closed (NC)

Lights ON by Default

The NC contactor keeps lights on when the coil is de-energized. The control circuit must be continuously energized to switch lights off. Choose NC when fail-safe illumination is required — occupied spaces, egress zones, and circuits where lights-off during a control failure is unacceptable. Eliminates the need for more expensive latching contactors in fail-on applications.

Normally Open (NO)

Lights OFF by Default

The NO contactor keeps lights off when the coil is de-energized. The control circuit must be continuously energized to keep lights on. Choose NO when energy savings is the primary goal — unoccupied zones, after-hours scheduling, parking areas, and demand response applications where lights-off during a control failure is safe or preferred.

Coil Voltage Selection Guide

120VAC — Most common in North American commercial lighting panels and BAS relay outputs. The standard choice for most applications.

24VAC — Class 2 low-voltage coil for direct integration with building automation systems and HVAC control panels.

277VAC — For lighting panels fed phase-to-neutral from 480V 3-phase distribution. Common in commercial and industrial buildings.

347/380VAC — Designed for Canadian 347V systems and international 380V applications.

208/230VAC — For 208V or 230V single-phase systems in smaller commercial buildings.

Common Applications

Commercial Lighting Control Panels — Zone-based multi-circuit switching from a single panel location.

Building Automation Systems — BAS relay output directly drives contactor coil for scheduled or demand-based lighting control.

Energy Management — After-hours and occupancy-based lighting shutoff.

Egress & Safety Lighting — NC contactors keep life-safety circuits energized during any control failure.

LED & Ballast Retrofits — Rated for both legacy ballast and modern LED driver inrush characteristics.

EE Controls LSN Series — Full Specifications
SpecificationLSN7 Series (4-Pole)LSN37 Series (3-Pole)
Contact Rating — Ballast/LED30A @ 600VAC60A @ 600VAC
Number of Poles43
Configurations AvailableNormally Closed (NC) & Normally Open (NO)Normally Closed (NC)
Coil Voltages Available24VAC, 120VAC, 208/230VAC, 277VAC, 347/380VAC120VAC
Short-Circuit CoordinationType 1 and Type 2Type 1 and Type 2
MountingDIN Rail and Surface MountDIN Rail and Surface Mount
StandardsUL 508, CSA 22.2 #14, IEC 60947, CE, RoHSUL 508, CSA 22.2 #14, IEC 60947, CE, RoHS
Load TypesBallast, LED, General Purpose LightingBallast, LED, General Purpose Lighting
ReplacesAEG LS7K Series (direct replacement)—
All EE Controls LSN Series Lighting Contactors — In Stock at ZOT Supply
LSN7-04-A 4-Pole NC • 120VAC • 30A LSN7-04-G 4-Pole NC • 24VAC • 30A LSN7-04-H 4-Pole NC • 277VAC • 30A LSN7-04-D 4-Pole NC • 347/380VAC • 30A LSN7-04-C 4-Pole NC • 208/230VAC • 30A LSN7-400-A 4-Pole NO • 120VAC • 30A LSN7-400-G 4-Pole NO • 24VAC • 30A LSN7-400-H 4-Pole NO • 277VAC • 30A LSN7-400-D 4-Pole NO • 347/380VAC • 30A LSN37-300L-A 3-Pole NC • 120VAC • 60A
Frequently Asked Questions
Is the EE Controls LSN7 a direct replacement for the AEG LS7K lighting contactor?
Yes. The EE Controls LSN7 Series is the direct form-fit-function replacement for the AEG LS7K lighting contactor. The LSN7 matches the AEG LS7K in pole count, contact ratings, coil voltage options, NC and NO configurations, and physical form factor. If you are replacing a failed AEG LS7K in the field, the corresponding LSN7 model installs in its place without modification.
What is the difference between a normally closed and normally open lighting contactor?
A normally closed (NC) contactor keeps the lighting circuit on when the coil is de-energized — the coil must be powered to switch lights off. A normally open (NO) contactor keeps the circuit off when the coil is de-energized — the coil must be powered to turn lights on. NC is used where fail-safe illumination is required. NO is used where energy savings and lights-off as the default state is preferred.
What coil voltage do I need for my lighting contactor?
The coil voltage must match the control circuit voltage driving the contactor. If your BAS relay output or time clock operates on 24VAC, choose a 24VAC coil. If your lighting panel control circuit runs on 120VAC, choose 120VAC. 277VAC is for panels fed phase-to-neutral from 480V 3-phase systems. 347/380VAC is for Canadian and international applications. 208/230VAC suits smaller commercial buildings on 208V or 230V systems.
Are EE Controls LSN Series contactors rated for LED loads?
Yes. The EE Controls LSN Series is rated for ballast and LED lighting loads at 30A (LSN7 4-pole) or 60A (LSN37 3-pole) up to 600VAC. The LSN Series is specifically rated for both ballast and LED driver load inrush characteristics.
Can I use a lighting contactor with a building automation system?
Yes. The BAS controller energizes the contactor coil via a binary output relay to switch lighting zones on or off based on schedule, occupancy, or demand. The LSN Series is available with 24VAC and 120VAC coil options to match the most common BAS relay output voltages.
How many lighting circuits can one contactor control?
The LSN7 4-pole contactor can switch up to four independent lighting circuits simultaneously from a single coil control signal. The LSN37 3-pole model switches up to three circuits. This allows one control point — a BAS relay, time clock, or occupancy sensor — to manage multiple zones at once.
What standards do EE Controls lighting contactors comply with?
EE Controls LSN Series lighting contactors are listed to UL 508, CSA 22.2 #14, and IEC 60947. They also carry CE and RoHS approvals, making them suitable for commercial projects in the United States, Canada, and internationally.
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