---
product_id: 45739341
title: "Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330"
brand: "baomain"
price: "C$1659"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/45739341-baomain-self-locking-push-button-switch-3-phase-30a-3
store_origin: NI
region: Nicaragua
---

# 30A current capacity Secure self-locking mechanism Compact 3.5”x1.8”x2” size Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330

**Brand:** baomain
**Price:** C$1659
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in power, unlock productivity!

## Quick Answers

- **What is this?** Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330 by baomain
- **How much does it cost?** C$1659 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/45739341-baomain-self-locking-push-button-switch-3-phase-30a-3)

## Best For

- baomain enthusiasts

## Why This Product

- Trusted baomain brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fits Seamlessly:** Compact design integrates effortlessly into standard 380V control panels
- • **Lock It Down Securely:** Innovative self-locking push button ensures fail-safe operation
- • **Universal Compatibility:** Works flawlessly with both 3-phase 380V and 2-phase 220V systems
- • **Power Through Like a Pro:** Handles robust 3.7KW loads for demanding industrial gear
- • **Built for Heavy-Duty Hustle:** Ideal for motors, pumps, CNC machines, and critical industrial controls

## Overview

The Baomain Self-Locking Push Button Switch BMBSP-330/TBSP-330 is a heavy-duty industrial 3-pole switch designed for 3-phase 30A/380V AC systems. It supports up to 3.7KW power loads, features a secure self-locking mechanism for reliable circuit control, and fits standard compact control panels. Compatible with both 380V 3-phase and 220V 2-phase systems, it’s perfect for motors, pumps, CNC machines, and other industrial applications requiring manual switching.

## Description

Full description not available

## Features

- 3-Phase 30A/380V AC Switch – Handles 3.7KW power loads for heavy-duty industrial equipment, compliant with 3-phase electrical systems
- Secure Self-Locking Design – Press "ON" to lock the circuit; "OFF" button instantly disconnects
- Easy Installation – Standard compact size (3.5”x1.8”x2”) fits most 380V control panels.
- Wide Compatibility – Works with 380V 3-phase and 220V 2-phase systems.
- Versatile Applications – Perfect for motors, pumps, CNC machines, and 380V AC control panels requiring manual switching

## Product Details

- **Operation Mode:** ON-OFF
- **Current Rating:** 30 Amps
- **Operating Voltage:** 380 Volts (AC)
- **Contact Type:** Normally Open
- **Connector Type:** Screw
- **Brand:** Baomain
- **Switch Type:** Push Button
- **Terminal:** Screw
- **Material:** Acrylic
- **Item dimensions L x W x H:** 1.57 x 3.15 x 1.57 inches

## Images

![Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330 - Image 1](https://m.media-amazon.com/images/I/51TgjBSvX9L.jpg)
![Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330 - Image 2](https://m.media-amazon.com/images/I/6111iuz6l5L.jpg)
![Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330 - Image 3](https://m.media-amazon.com/images/I/71Cv902jvrL.jpg)
![Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330 - Image 4](https://m.media-amazon.com/images/I/51FX5a9teGL.jpg)
![Baomain Self-Locking Push Button Switch 3-Phase 30A 3.7KW, Industrial 3-Pole Heavy Duty,BMBSP-330/TBSP-330 - Image 5](https://m.media-amazon.com/images/I/612ujvP7fBL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Are the gray circular pieces to be discarded where the wire enters and exits the switch or modified in some fashion?**
A: Those are meant to be drilled out or cut to seal around the cable you use with the switch.

**Q: Can this be used to control a single phase compressor motor**
A: Yes it can I used it to run a single phase 240 volt compressor and it will work with 120 also

**Q: Is this water proof?**
A: No it is not sealed up like waterproof switches are

**Q: Looking to control single phase 120V wood shop equipment.  Will this switch latch on at 120 Volts and work with single phase?**
A: Yes, it will, just use one of the three sets of contacts.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great on off 3 wire push button switch for smaller gauge wire size.
*by J***S on March 24, 2025*

This on-off switch is what I wanted, but I have eight gauge wire wrapped in black round rubber, so it is too big for this switchother than that, it is perfect for smaller wire sizes.

### ⭐⭐⭐⭐⭐ Works exactly as intended
*by T***F on December 29, 2024*

My old clunky air compressor had no switch so I was constantly needing to plug and unplug the motor. The outlet is not very happy with unplugging it while the motor is running. This switch fixed everything. Love it.

### ⭐⭐⭐⭐ Easy replacement
*by K***N on December 17, 2020*

For the price, it was an easy choice, and was easy to replace.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.ni/products/45739341-baomain-self-locking-push-button-switch-3-phase-30a-3](https://www.desertcart.ni/products/45739341-baomain-self-locking-push-button-switch-3-phase-30a-3)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-25*