---
product_id: 29646374
title: "FirstAlert Wire-In Relay, 120V (RM4)"
brand: "brk-first alert"
price: "355 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/29646374-firstalert-wire-in-relay-120v-rm4
store_origin: PL
region: Poland
---

# 120V Power Relay Module Wire-In Design FirstAlert Wire-In Relay, 120V (RM4)

**Brand:** brk-first alert
**Price:** 355 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** FirstAlert Wire-In Relay, 120V (RM4) by brk-first alert
- **How much does it cost?** 355 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/29646374-firstalert-wire-in-relay-120v-rm4)

## Best For

- brk-first alert enthusiasts

## Why This Product

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

## Key Features

- • **🔋 Unmatched Power:** Harness 120V AC for robust performance.
- • **🛡️ Safety First:** Designed with safety features to protect your systems.
- • **📈 Boost Efficiency:** Optimize your electrical systems with this essential component.
- • **🔄 Reliable Switching:** High-quality relay module for dependable operation.
- • **🔗 Seamless Integration:** Wire-in design for effortless installation.

## Overview

The FirstAlert Wire-In Relay (RM4) operates at 120V AC, providing a reliable and efficient solution for your electrical needs. Its wire-in design ensures easy integration into existing systems, making it a must-have for professionals seeking safety and performance.

## Description

FirstAlert Wire-In Relay, 120V (RM4)

## Features

- Volts AC: 120
- Type: Relay Modules

## Product Details

- **Connector Type:** Screw
- **Mounting Type:** DIN Rail Mount
- **Brand:** BRK-First Alert
- **Operation Mode:** Manual
- **Coil Voltage:** 120 Volts

## Images

![FirstAlert Wire-In Relay, 120V (RM4) - Image 1](https://m.media-amazon.com/images/I/419-dpiFyML.jpg)
![FirstAlert Wire-In Relay, 120V (RM4) - Image 2](https://m.media-amazon.com/images/I/419-dpiFyML.jpg)

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**Shop now:** [https://www.desertcart.pl/products/29646374-firstalert-wire-in-relay-120v-rm4](https://www.desertcart.pl/products/29646374-firstalert-wire-in-relay-120v-rm4)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-09*