---
product_id: 16652046
title: "Wattstopper B120E-P 120Vac Occupancy Sensor Power Pack Supply 120VAC 24VDC"
brand: "watt stopper"
price: "₨46064"
currency: LKR
in_stock: true
reviews_count: 4
url: https://www.desertcart.lk/products/16652046-wattstopper-b120e-p-120vac-occupancy-sensor-power-pack-supply-120vac
store_origin: LK
region: Sri Lanka
---

# 120VAC power input 24VDC output transformer Snap-in plenum rated design Wattstopper B120E-P 120Vac Occupancy Sensor Power Pack Supply 120VAC 24VDC

**Brand:** watt stopper
**Price:** ₨46064
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart spaces with effortless precision!

## Quick Answers

- **What is this?** Wattstopper B120E-P 120Vac Occupancy Sensor Power Pack Supply 120VAC 24VDC by watt stopper
- **How much does it cost?** ₨46064 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/16652046-wattstopper-b120e-p-120vac-occupancy-sensor-power-pack-supply-120vac)

## Best For

- watt stopper enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Power:** Snaps in effortlessly for quick, hassle-free installation
- • **Plenum Rated Safety:** Meets strict air-handling space standards for commercial compliance
- • **Compact & Lightweight:** Sleek 2.9x2.3x1.8 inch design weighing just 0.5 lbs fits discreetly
- • **Reliable Voltage Conversion:** Transforms 120VAC to 24VDC ensuring stable sensor operation
- • **Trusted WattStopper Quality:** Durable, manufacturer-supported component for seamless occupancy sensing

## Overview

The Wattstopper B120E-P is a compact, plenum-rated power pack that converts standard 120VAC to 24VDC, designed specifically for ceiling-mounted occupancy sensors. Its snap-in design ensures quick installation, making it an essential, reliable component for energy-efficient commercial lighting control systems.

## Description

The WattStopper BZ50 Voltage Power Pack for occupancy sensors provide 24VDC operating voltage to all Watt Stopper 24VDC occupancy sensors and LightSaver controllers. Auxiliary relay packs are similar to power packs but have no transformer power supply, only an isolated relay.Power packs consist of a transformer and highcurrent relay combined in one small, powerful package. The transformer has a primary high voltage input and a secondary, low voltage output (24 VDC,114 mA with relay connected). The secondary voltage provides operating power to Watt Stopper sensors. When the occupancy sensors detect motion or light sensors detect inadequate ambient light, they electrically close an internal circuit which sends 24 VDC back to the power or auxiliary relay packs that control the lighting system.

## Features

- Fully Self-Contained Transformer and Relay Plenum Rated Snaps In for Easy Installation Essential Component for Ceiling Mounted Occupancy Sensor

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 0.5 Pounds |
| UPC | 754182911318 |
| Manufacturer | WattStopper |
| Part Number | B120E-P |
| Item Weight | 8 ounces |
| Product Dimensions | 2.9 x 2.3 x 1.8 inches |
| Item model number | B120E-P |
| Is Discontinued By Manufacturer | No |
| Color | White |
| Finish | White |
| Voltage | 120 Volts |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Watt Stopper
- **Power Source:** Corded Electric
- **Mounting Type:** Ceiling Mount
- **Current Rating:** 0.5 Amps
- **Specification Met:** RoHS

## Images

![Wattstopper B120E-P 120Vac Occupancy Sensor Power Pack Supply 120VAC 24VDC - Image 1](https://m.media-amazon.com/images/I/71LzcH9PebL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ good for residential 120 Volt only
*by R***E on November 11, 2017*

Gotta have it for Occupancy Sensors, good for residential 120 Volt only. Work great.

### ⭐⭐⭐⭐ Four Stars
*by S***E on May 23, 2018*

Worked as needed.

### ⭐⭐⭐⭐⭐ Great Stuff!
*by S***E on July 5, 2017*

Watt Stopper is always quality stuff. My customer was summarily impressed with the final product.

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**Shop now:** [https://www.desertcart.lk/products/16652046-wattstopper-b120e-p-120vac-occupancy-sensor-power-pack-supply-120vac](https://www.desertcart.lk/products/16652046-wattstopper-b120e-p-120vac-occupancy-sensor-power-pack-supply-120vac)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-22*