---
product_id: 27181188
title: "Solar Controller - ReSol DeltaSol BS/Plus"
brand: "northern lights group"
price: "€ 1216.74"
currency: EUR
in_stock: true
category: "Northern Lights Group"
url: https://www.desertcart.it/products/27181188-solar-controller-resol-deltasol-bs-plus
store_origin: IT
region: Italy
---

# energy metering & heat balancing 2 external pump relays 4 precision temp sensors Solar Controller - ReSol DeltaSol BS/Plus

**Brand:** northern lights group
**Price:** € 1216.74
**Availability:** ✅ In Stock

## Summary

> ⚡ Harness the sun like a pro — control your solar thermal system with precision and style!

## Quick Answers

- **What is this?** Solar Controller - ReSol DeltaSol BS/Plus by northern lights group
- **How much does it cost?** € 1216.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/27181188-solar-controller-resol-deltasol-bs-plus)

## Best For

- northern lights group enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Zone Mastery:** Simultaneously manage water and auxiliary heating zones with 2 powerful semiconductor relays.
- • **Future-Ready Connectivity:** Remote programming and control via RESOL Service Center software for seamless smart integration.
- • **Smart Pump Speed Regulation:** Variable speed pump control maximizes energy savings and system longevity.
- • **Precision Temperature Control:** Up to 4 Pt1000 sensors ensure pinpoint thermal management for optimal solar efficiency.
- • **Comprehensive System Monitoring:** Illuminated display and real-time energy metering keep you informed and in control.

## Overview

The RESOL DeltaSol BS/Plus is an advanced solar thermal controller designed for dual-zone systems, featuring 4 temperature sensors, 2 semiconductor relays, variable pump speed control, and integrated energy metering. Its intuitive illuminated display and remote programming capabilities make it a top-tier choice for efficient, smart solar thermal management.

## Description

Solar Controller - RESol DeltaSol BS/plusAdvanced solar zone controller with four input sensors and two external pump/switch relaysThe RESOL DeltaSol BS Plus system controller is for standard solar thermal systems with 2 standard-relays allowing control of two zones such as water and AUX heating zone. It has an additional aqua stat function preprogrammed for different hydraulic layouts and is equipped with energy metering. The BS/Plus also comes standard with variable speed pump control.FEATURESIlluminated system-monitoring-displayUp to 4 temperature sensors Pt10002 standard-relay outputs and two tanks and two collector fields9 basic layouts are selectableHeat balancing, tube collector functionEnergy meteringFunction controlProgramming and remote control of the system via RESOL Service Center Software possibleRESOL VBusReal Time Clock (timer function)Aqua stat functionEmergency shut down and cooling functionFreeze protectionVacuum tube collector functionSPECIFICATIONSHousing: plastic, PC-ABS and PMMAProtection type: IP 20 / DIN 40050Ambient temperature: 0 ... 40 °CDimension: 172 x 110 x 49 mmInstallation: wall mounting, mounting into patch panels is possibleInputs: 4 temperature sensors Pt1000Outputs: 2 semiconductor relays (DeltaSol BS Plus)Operation: 3 push buttons at the frontFunctions: differential temperature controller with adjustable system functions, operating hours counter for the solar pump, tube collector function, thermostat function, pump speed controlBus: RESOL VBusPower consumption: approx. 2 VASwitching capacities: 1 (1) A 100 ... 240 V~ (semiconductor relay)Total switching capacity: 2 A 240 V~

## Features

- Solar Controller - ReSol DeltaSol BS/Plus
- Advanced solar zone controller with four input sensors and two external pump/switch relays
- Includes functions for differential temperature controller with adjustable system functions. Function control according to BAW-guidelines, operating hours counter for the solar pump, tube collector function, thermostat function, pump speed control, heat quantity measurement
- Suitable for solar thermal systems
- Allows control of two zones

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #959,490 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,105 in Renewable Energy Controllers |
| Brand | Northern Lights Group |
| Manufacturer | PAW |
| Material | Plastic |
| UPC | 760537188434 |
| Voltage | 2 Volts (DC) |

## Product Details

- **Brand:** Northern Lights Group
- **Voltage:** 2 Volts (DC)
- **Material:** Plastic
- **UPC:** 760537188434
- **Manufacturer:** PAW

## Images

![Solar Controller - ReSol DeltaSol BS/Plus - Image 1](https://m.media-amazon.com/images/I/31cR5XnkeTL.jpg)

## Frequently Bought Together

- Solar Controller - ReSol DeltaSol BS/Plus
- EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.it/products/27181188-solar-controller-resol-deltasol-bs-plus](https://www.desertcart.it/products/27181188-solar-controller-resol-deltasol-bs-plus)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-18*