Customer Service was great quick shipment time packaging very well. No damage will leave another review after I get it going. I haven’t hooked it up yet.
WEG 2 HP 1 Phase Magnetic Starter NEMA 1 208-230V 8 - 12.5 Amp ESWS-B12V24E-RM30
WEG ESWS-B12V24E-RM30 2 HP Single Phase Magnetic Starter
Brand new WEG ESWS-B12V24E-RM30 2 horsepower, single phase, 208-240 volt magnetic starter with a NEMA 1 enclosure. This is a great quality starter with a built-in overload which is adjustable from 8-12.5 amps and is equipped with a manual reset button.
The ESWS magnetic starters are ideal to protect motors and ensure reliable operation year after year. Assembled together in a NEMA 1 enclosure with a RESET button on the cover for quick and easy operation.
The NEMA 1 enclosure is designed primarily for indoor use and provides protection against contact with the enclosed equipment, objects, and personnel from shock hazards, a limited amount of falling dirt, and accidental contact with live parts.
PROFESSIONAL INSTALLATION RECOMMENDED
Specifications
• HP at 208-240V: 2
• Overload Range Min (Amps): 8
• Overload Range Max (Amps): 12.5
• Coil Voltage: 208-240 Volts
• Phase: Single
• Frequency: 60Hz
• Enclosure Rating: NEMA 1
• Enclosure Material: Steel
• Push Button Function: Reset
• Weight: 5 lbs.
• Approximate Dimensions (W x H x D): 5-7/16" x 9-7/16" x 4.75"
Standard Features
• Fast acceleration and high initial torque
• Bimetallic overload relays - class 10
• Adjustable trip current
• Ambient temperature compensated for -4°F to 140°F
• Phase-loss sensitivity protection
• Selectable manual or automatic reset
• Electrically isolated NO-NC auxiliary contacts
• UL, IEC, and CSA Certified
If you are using this starter on an air compressor, you will also need a pressure switch to control the starter. In this application, the pressure switch controls the On and Off of the starter according to the pressure setting of the pressure switch.
Overview
| Brand | WEG |
|---|---|
| Horsepower Maximum motor horsepower this starter is rated to control at the listed voltage and phase. | 2.0 HP |
| Phase | Single Phase |
| Voltage | 208-230 V |
| Frequency | 60 Hz |
| Overload adjustment range The overload relay’s adjustable trip-current band. Set the dial to roughly 115% of the motor’s full-load amps. | 8.0–12.5 A |
| Enclosure NEMA 1 = general-purpose indoor. NEMA 4X = washdown / outdoor, dust- and corrosion-resistant. | NEMA 1 |
| Country of origin Where this starter is manufactured, per the manufacturer / supplier documentation. | Mexico / Brazil |
| Catalog / part number | ESWS-B12V24E-RM30 |
Contactor & Control
| Contactor type The magnetic contactor that switches power to the motor. | WEG CWB12 |
|---|---|
| Contactor rating | 12 A |
| Coil / control voltage The voltage that energizes the contactor coil — supplied by the pressure switch or control circuit. | 208-240 VAC |
| Control scheme The pilot devices wired in: e.g. Reset only, Start/Stop + Reset, or Hand-Off-Auto (HOA). | Reset only |
| Auxiliary contacts Spare isolated contacts for interlocks, run indication, or a low-oil switch. | 1 NO + 1 NC, electrically isolated |
Overload Protection
| Overload relay type Bimetallic relays trip on a heater element sized to the motor current; ambient-compensated means the trip point is stable across temperature. | Bimetallic, ambient-compensated |
|---|---|
| Trip class How long the relay tolerates locked-rotor current before tripping. Class 10 = within 10 s, standard for compressors. | Class 10 |
| Reset mode Manual reset requires pressing the button after a trip; automatic re-closes on cooldown. | Selectable manual / automatic |
| Phase-loss protection Trips the motor off if one supply phase is lost, preventing single-phasing damage. | Yes |
Enclosure & Physical
| Enclosure material | Steel |
|---|---|
| Dimensions (H × W × D) Approximate enclosure size from the manufacturer catalog. | 9.4375″ H × 5.4375″ W × 4.75″ D |
| Weight | 5.0 lb |
Ratings & Compliance
| Agency approvals | UL508A listed, cULus certified |
|---|---|
| Ambient temperature range | -4°F to +140°F (-20°C to +60°C) |
| Application notes | Factory pre-wired. For air-compressor use, control the starter with a pressure switch. |

