---
product_id: 423037631
title: "Din Rail Mounted Circuit Protection Relay AC Voltage Monitoring Relay Failure Sequence Loss Voltage Monitoring Relay 270138 G1-TU THREE PHASE"
brand: "klemsan"
price: "¥6279"
currency: JPY
in_stock: true
reviews_count: 1
category: "Klemsan"
url: https://www.desertcart.jp/products/423037631-din-rail-mounted-circuit-protection-relay-ac-voltage-monitoring-relay
store_origin: JP
region: Japan
---

# 3-phase AC voltage monitoring DIN rail mount for easy installation Advanced circuit protection Din Rail Mounted Circuit Protection Relay AC Voltage Monitoring Relay Failure Sequence Loss Voltage Monitoring Relay 270138 G1-TU THREE PHASE

**Brand:** klemsan
**Price:** ¥6279
**Availability:** ✅ In Stock

## Summary

> 🛡️ Power up your protection game with Klemsan’s smart voltage guardian!

## Quick Answers

- **What is this?** Din Rail Mounted Circuit Protection Relay AC Voltage Monitoring Relay Failure Sequence Loss Voltage Monitoring Relay 270138 G1-TU THREE PHASE by klemsan
- **How much does it cost?** ¥6279 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/423037631-din-rail-mounted-circuit-protection-relay-ac-voltage-monitoring-relay)

## Best For

- klemsan enthusiasts

## Why This Product

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

## Key Features

- • **Robust Circuit Protection:** Prevent costly motor winding failures with intelligent relay failure sequence monitoring.
- • **Maintenance-Free Operation:** No batteries required—install and forget, while your system stays protected 24/7.
- • **Effortless DIN Rail Mounting:** Streamline your setup with a compact 80g device designed for quick, secure installation.
- • **Made in Turkey with Trusted Quality:** Klemsan engineering ensures reliability and durability in demanding industrial environments.
- • **Precision 3-Phase Voltage Monitoring:** Stay ahead with real-time unbalanced voltage detection to safeguard your motors.

## Overview

The Klemsan 270138 G1-TU is a DIN rail mounted, three-phase AC voltage monitoring relay designed to protect electrical systems from unbalanced voltages and motor winding damage. Made in Turkey, this compact 80g device offers reliable, maintenance-free operation without batteries, ensuring seamless integration and enhanced system safety in industrial applications.

## Description

Klemsan protection relays protect system devices against unbalanced voltage and prevent errors caused by motor winding temperatures.

Review: Good I guess - Everything works ( no idea what this does) My Watchman buy this so I bought it

## Features

- Made In Turkey
- Voltage Monitoring Relay
- Klemsan
- Please check catalog below for full range of specs
- https://www.klemsan.com.tr/product/Index/en-US/6691/

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093Y846S1 |
| ASIN  | B093Y846S1 |
| Batteries Required? | No |
| Customer Reviews | 4.2 4.2 out of 5 stars (7) |
| Customer reviews | 4.2 4.2 out of 5 stars (7) |
| Date First Available | 1 May 2021 |
| Date First Available  | 1 May 2021 |
| Item Weight | 80 g |
| Item model number | 270138 |
| Item model number  | 270138 |
| Manufacturer | KLEMSAN |
| Manufacturer  | KLEMSAN |
| Package Dimensions | 10 x 7 x 2.2 cm; 80 g |
| Package Dimensions  | 10 x 7 x 2.2 cm; 80 g |
| Part number | 270138 |
| Plug Profile | DIN Rail Mount |

## Product Details

- **Connector type:** Screw
- **Contact material:** Silver
- **Contact type:** Normally Open
- **Mounting type:** DIN Rail Mount
- **Brand:** Klemsan

## Images

![Din Rail Mounted Circuit Protection Relay AC Voltage Monitoring Relay Failure Sequence Loss Voltage Monitoring Relay 270138 G1-TU THREE PHASE - Image 1](https://m.media-amazon.com/images/I/71Ov1utqp6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Good I guess
*by L***E on 17 February 2025*

Everything works ( no idea what this does) My Watchman buy this so I bought it

## Frequently Bought Together

- Klemsan Din Rail Mounted Circuit Protection Relay AC Voltage Monitoring Relay Failure Sequence Loss Voltage Monitoring Relay 270138 G1-TU THREE PHASE
- Klemsan Din Rail Mounted Circuit Protection Relay AC Voltage Monitoring Relay Failure Sequence Loss Voltage Monitoring Relay G1TU M SINGLE PHASE RELAY

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-20*