WEG CWM18-00-04X18 : 4-Pole Lighting Contactor, Normally Closed, 120 VAC Coil - EE Controls LSN7-04-A Crossover
The WEG CWM18-00-04X18 is a 4-pole contactor with four normally closed main contacts and a 120 VAC control coil, supplied by EE Controls as the cross-reference for the discontinued LSN7-04-A. In this part all four poles are closed with the coil de-energized, so the lighting circuits stay on through a loss of control power. Confirm that this is the fail state your sequence of operations requires, and confirm the load rating with us before selection.
Before you select this part: it gives you four poles, a normally closed fail state and a 120 V control circuit. The load rating is not documented for this catalog number, so confirm it with us against the circuit you are switching rather than assuming the CWM18 frame figures apply.
How this contactor is rated
We do not publish a current rating for this catalog number. No part-specific WEG datasheet for the CWM18-00-04X18 has been located, and we do not carry figures across from a different catalog number and present them as this part's ratings. For reference only, WEG's published data for the companion CWM18-00-40V18 gives 32 A under AC-1 at Ue 690 V or less and 18 A under AC-3 at Ue 440 V or less, with no AC-5a or AC-5b lamp-load rating published. Contact us before you specify this part against a particular figure and we will get it confirmed by EE Controls in writing.
What is confirmed about this catalog number
| Specification | Value | Source |
|---|---|---|
| Catalog number | CWM18-00-04X18 | EE Controls cross-reference |
| Brand | WEG | EE Controls cross-reference |
| Number of main poles | 4 | EE Controls cross-reference |
| Main contact arrangement | 4 NC, normally closed | EE Controls cross-reference |
| Coil voltage | 120 VAC | EE Controls cross-reference |
| Current ratings | Not published here | No WEG datasheet located |
| Dimensions, weight, terminals, mounting | Not published here | No WEG datasheet located |
CWM18 frame reference
The figures below are not the rated values of the CWM18-00-04X18. They are read from the WEG datasheet for the companion CWM18-00-40V18 (product code 13323656), which is the 4 NO version of the same frame, and are shown alongside the EE Controls LSN7 nameplate so you can see how the two product lines compare on paper. Amber rows are where the two documents do not agree.
| Published rating | EE Controls LSN7 | WEG CWM18 frame |
|---|---|---|
| Coil, EEC code A / WEG code V18 | 120 VAC 50/60 Hz | 110 V 50 Hz / 120 V 60 Hz |
| Rated current Ie, AC-3 | 18 A at 240 / 400 / 440 V | 18 A at Ue 440 V or less |
| Rated current Ie, AC-3 at 500 V | 14 A | Not published by WEG |
| Rated current Ie, AC-3 at 690 V | 13 A | 13 A at Ue 690 V or less |
| General purpose current | 32 A, break all lines, 600 VAC | 32 A, AC-1, Ue 690 V or less at 55 C or less |
| AC-1 power at 240 / 400 / 440 / 500 V | 12 / 22 / 23 / 27.5 kW | 12 / 22 / 23 / 27.5 kW |
| AC-3 power at 240 / 400 / 440 / 500 / 690 V | 4.5 / 7.5 / 9.2 / 9.2 / 11 kW | 4.5 / 7.5 / 9.2 / 9.2 / 11 kW |
| AC-3 motor rating, IEC (HP) | 6 / 10 / 12.5 / 12.5 / 15 HP | 6 / 10 / 12.5 / 12.5 / 15 HP |
| UL HP, 1-phase at 120 / 240 V | 1 / 3 HP | 1 / 3 HP |
| UL HP, 3-phase at 200 / 240 / 480 / 600 V | 5 / 5 / 10 / 15 HP | 5 / 5 / 10 / 15 HP |
| Short-circuit current rating at 600 V | 5 kA | 5 kA |
| Tightening torque, power / control terminals | 15 lb.in / 10 lb.in | 15 lb.in / 10 lb.in |
| Conductor range, power / control terminals | 14-10 AWG / 16-12 AWG | Published in mm2 only: 0.5-6 mm2 / 0.5-4 mm2 |
| Body size, height x width x depth | 81 x 45 x 87 mm | 81 x 45 x 87 mm |
| Mounting | 35 mm DIN rail or panel surface | Not published by WEG (datasheet lists installation as not available) |
| AC-5a / AC-5b lighting rating | 30 A at 347/600 VAC, 3 phase | Not published by WEG |
EE Controls crossover
EE Controls cross-references the discontinued EE Controls LSN7-04-A to this catalog number. That crossover comes from EE Controls and is not printed in either manufacturer datasheet, so treat it as a vendor-supplied cross-reference rather than a published equivalency, and confirm fit and ratings against your own submittal. The normally open version of this part is the WEG CWM18-00-40V18.
Datasheets and technical documents
Frequently asked questions
What documentation is available for the CWM18-00-04X18?
What current is the CWM18-00-04X18 rated for?
What is the coil voltage on the WEG CWM18-00-04X18?
Why would I choose normally closed over the alternative?
Does the WEG CWM18-00-04X18 replace an EE Controls part?
Is the CWM18-00-04X18 rated for ballast and LED lighting loads?
Sources: EE Controls LSN Series Lighting Contactor catalog (nameplate and selection tables); WEG Contactors datasheet, product code 13323656 (CWM18-00-40V18), issue dated 14/09/2026. Crossover part numbers supplied by EE Controls. Reviewed 14 September 2026.
- # of Poles:
- 4
- Coil Voltage:
- 120VAC
- Configuration:
- Normally Closed
