WEG ESWS-B32V24E-RM34 Magnetic Motor Starter | 5HP 230V Single Phase | 32A Contactor, 22-32A Overload
The WEG ESWS-B32V24E-RM34 is a direct single-phase enclosed magnetic motor starter designed for compressor motor control applications that require dependable switching and overload protection. It is commonly used on 5HP, 230V single-phase air compressor motors where a pressure switch controls the starter coil and the starter handles motor switching duty.
This model features a 32A contactor, 22-32A overload relay, E-Reset control, and a TYPE1 metallic enclosure. WEG states the ESWS enclosed starter series is built with components meeting IEC design standards and UL horsepower ratings and is UL508A approved and cULus certified. FREE SHIPPING
Helps Reduce Pressure Switch Contact Wear: In air compressor applications, the pressure switch sends the control signal while the starter contactor handles the heavier motor switching duty. This setup can help reduce contact wear compared with switching the motor load directly through the pressure switch alone.
Common Applications & Use Cases
The ESWS-B32V24E-RM34 is well suited for indoor compressor and motor control applications where enclosed overload protection and dependable switching are needed.
- Industrial air compressors: Commonly applied on 5HP, 230V single-phase compressor motors.
- Workshop & garage compressors: Adds a dedicated starter and overload relay for more robust motor control.
- Auto body & paint shops: Useful for systems with repeated compressor cycling.
- Maintenance replacements: A practical option when replacing a failed enclosed single-phase magnetic starter.
- OEM and retrofit projects: Metallic enclosed design works well in general indoor motor control applications.
Technical Specifications – WEG ESWS-B32V24E-RM34
| Feature | Details |
|---|---|
| Catalog Number | ESWS-B32V24E-RM34 |
| Product | 13140277 |
| Brand | WEG |
| Start Type | Direct Single-phase |
| Assembly Method (Start Key) | Metallic Crate |
| Reference | ESWS |
| Maximum Power Rating | Not applicable |
| Rated Operational Voltage | Ue ≤ 600V |
| Control Voltage | 180-208V 50HZ / 208-240V 60HZ |
| Control Devices | E-Reset |
| Degree of Protection | TYPE1 |
| Starters Complements | Does Not Contain |
| Rated Current (AC-3) | 32A (CWB32) |
| Overload Relay | 22-32 A (RW27) |
| Measuring Tool and Accessories | Not Applicable |
| Button Type | Unspecified |
| Button Color | Not Specified |
| Connection Type | Not Applicable |
| Documentation | View Official WEG Product Page |
Professional Installation Recommended: This starter should be installed by a qualified electrician. Before installation, verify motor horsepower, full-load amperage, incoming voltage, control circuit voltage, pressure switch compatibility, grounding, and all NEC and local code requirements.
Why Choose WEG ESWS-B32V24E-RM34?
Built for enclosed compressor motor control
- 32A contactor: Supports demanding single-phase motor switching requirements.
- 22-32A overload relay: Adjustable protection helps align the starter to the motor full-load amperage range.
- E-Reset control: Manual reset style operation after overload trip conditions.
- TYPE1 enclosure: Metallic enclosed design for indoor general-purpose applications.
- UL508A approved / cULus certified: Supports North American control panel and enclosed starter requirements.
- WEG design platform: Built with components meeting IEC design standards and UL horsepower ratings.
- Pressure switch integration: Well suited to compressor systems using a separate pressure switch for control.
- Strong replacement choice: A solid option for replacing worn or undersized enclosed compressor starters.
How the ESWS-B32V24E-RM34 Works with Your Air Compressor
In a typical compressor control circuit, a separate pressure switch tells the starter when the motor should run. The starter then handles the motor switching function and overload protection.
- The pressure switch senses tank pressure and sends control voltage to the starter when the compressor calls for operation.
- The starter coil energizes the contactor, closing the power contacts and sending line power to the motor.
- The overload relay monitors motor current and trips when sustained overcurrent conditions exceed the selected range.
- When cut-out pressure is reached, the pressure switch opens the control circuit, the contactor drops out, and the motor stops.
This setup helps reduce direct switching load on the pressure switch while adding dedicated motor overload protection.
Related WEG Magnetic Starters
| WEG Model | HP Rating | Voltage/Phase | Adjustable Overload Range |
|---|---|---|---|
| ESWS-B32V24E-RM34 | 5HP | 230V Single Phase | 22-32A |
Frequently Asked Questions
Q: What is the catalog number for this starter?
A: The catalog number is ESWS-B32V24E-RM34, and the WEG product number is 13140277.
Q: What type of starter is this?
A: WEG lists this model as a Direct Single-phase enclosed starter in the ESWS reference family.
Q: What is the control voltage?
A: The control voltage is 180-208V 50HZ / 208-240V 60HZ.
Q: What is the rated current?
A: WEG lists the rated current (AC-3) as 32A with a CWB32 contactor.
Q: What is the overload relay range?
A: The overload relay range is 22-32 A and uses the RW27 relay.
Q: Does this unit include an ON/OFF switch?
A: WEG lists the control device as E-Reset and the starter complements field as “Does Not Contain,” so this unit is not presented as having a built-in ON/OFF switch.
Q: What enclosure / protection rating does it use?
A: WEG lists the assembly method as Metallic Crate and the degree of protection as TYPE1.
Q: Is this good for air compressor use?
A: Yes. This type of enclosed magnetic starter is commonly used in compressor control circuits where a pressure switch controls the starter and the starter provides motor switching and overload protection.
Q: Do you offer free shipping?
A: Yes. This product qualifies for free shipping. See our shipping policy for details.
Genuine WEG Product
WEG ESWS enclosed starters are designed for industrial flexibility and motor control reliability. The ESWS-B32V24E-RM34 combines enclosed switching, overload protection, and a TYPE1 metallic design for demanding compressor motor applications.
