---
product_id: 441825807
title: "CSD-SA1E1-1 Current Sensing Relay, 1 to 135A, 240 VAC"
brand: "johnson controls"
price: "S$400"
currency: SGD
in_stock: true
reviews_count: 5
url: https://www.desertcart.sg/products/441825807-csd-sa1e1-1-current-sensing-relay-1-to-135a-240
store_origin: SG
region: Singapore
---

# 1-135A current range Compact 7.6cm³ size Snap-in mounting bracket CSD-SA1E1-1 Current Sensing Relay, 1 to 135A, 240 VAC

**Brand:** johnson controls
**Price:** S$400
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your control game with precision and ease!

## Quick Answers

- **What is this?** CSD-SA1E1-1 Current Sensing Relay, 1 to 135A, 240 VAC by johnson controls
- **How much does it cost?** S$400 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/441825807-csd-sa1e1-1-current-sensing-relay-1-to-135a-240)

## Best For

- johnson controls enthusiasts

## Why This Product

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

## Key Features

- • **Space-Saving Design:** Compact size fits effortlessly into tight enclosures, maximizing your setup.
- • **Solid-State Reliability:** 100% solid-state output means zero mechanical failures—built to last.
- • **Dual-Function Monitoring:** Seamlessly tracks current flow and motor start/stop for ultimate control.
- • **Quick Snap-In Installation:** Mounting bracket snaps in place for fast, hassle-free setup.
- • **Polarity-Insensitive Output:** Simplifies wiring with no polarity worries—install with confidence.

## Overview

The Johnson Controls CSD-SA1E1-1 is a compact, solid-state current sensing relay designed for 1 to 135A loads at 240 VAC. Featuring dual-function monitoring of current and motor status, polarity-insensitive output for simplified wiring, and a snap-in mounting bracket, it offers reliable, space-saving performance ideal for professional electrical applications.

## Description

Johnson Controls CSD-SA1E1-1 Current Sensing Relay, 1 to 135A, 240 VAC : desertcart.in: Industrial & Scientific

Review: Looks well made like original
Review: It was returned simply because I couldn't be certain of the specs. Prob'ly just a mix up in the shipping or something, but it looked like it would do the job if I had the job for it. Quality looked fine

## Features

- Dual function — monitors current and motor start and stop
- 100% solid-state output — has no moving parts to fail
- Polarity insensitive output — provides easier wiring
- Snap-in mounting bracket — simplifies installation
- Small size — fits in tight enclosures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008FM2TAY |
| Brand | Johnson Controls |
| Customer Reviews | 3.9 3.9 out of 5 stars (11) |
| Date First Available | 27 September 2021 |
| Generic Name | Johnson Controls |
| Item Dimensions LxWxH | 7.6 x 7.6 x 7.6 Centimeters |
| Item Height | 3 Inches |
| Item Weight | 144 g |
| Item Width | 3 Inches |
| Item model number | CSD-SA1E1-1 |
| Manufacturer | Johnson Controls Inc |
| Model number | CSD-SA1E1-1 |
| Number of Memory Sticks | 1 |
| Product Dimensions | 7.62 x 7.62 x 7.62 cm; 144 g |

## Images

![CSD-SA1E1-1 Current Sensing Relay, 1 to 135A, 240 VAC - Image 1](https://m.media-amazon.com/images/I/8122va3OLEL.jpg)

## Questions & Answers

**Q: Is the relay function normally open, or normally closed?**
A: Normally open.  It works very well.  A 60w incandescent bulb is enough current to operate it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***T on 17 January 2024*

Looks well made like original

### ⭐⭐⭐ Review
*by A***A on 15 June 2021*

It was returned simply because I couldn't be certain of the specs. Prob'ly just a mix up in the shipping or something, but it looked like it would do the job if I had the job for it. Quality looked fine

### ⭐⭐⭐ Review
*by W***E on 7 September 2022*

Displayed image did not match the item delivered.

## Frequently Bought Together

- Johnson Controls CSD-SA1E1-1 Current Sensing Relay, 1 to 135A, 240 VAC
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**Shop now:** [https://www.desertcart.sg/products/441825807-csd-sa1e1-1-current-sensing-relay-1-to-135a-240](https://www.desertcart.sg/products/441825807-csd-sa1e1-1-current-sensing-relay-1-to-135a-240)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-24*