---
product_id: 27181188
title: "Solar Controller - ReSol DeltaSol BS/Plus"
brand: "northern lights group"
price: "£715.19"
currency: GBP
in_stock: true
category: "Northern Lights Group"
url: https://www.desertcart.co.uk/products/27181188-solar-controller-resol-deltasol-bs-plus
store_origin: GB
region: United Kingdom
---

# Built-in energy metering 2 external pump relays 4 precision temp sensors Solar Controller - ReSol DeltaSol BS/Plus

**Brand:** northern lights group
**Price:** £715.19
**Availability:** ✅ In Stock

## Summary

> ☀️ Master your solar energy flow with precision and power!

## Quick Answers

- **What is this?** Solar Controller - ReSol DeltaSol BS/Plus by northern lights group
- **How much does it cost?** £715.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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

- • **Dynamic Pump Management:** Optimize energy use with variable speed pump control and dual semiconductor relays for seamless zone switching.
- • **Precision Thermal Control:** Harness 4 advanced Pt1000 sensors for pinpoint temperature management across dual solar zones.
- • **Robust Safety & Efficiency:** Includes freeze protection, emergency shutdown, and tube collector functions to maximize system longevity and performance.
- • **Plug & Play Smart Integration:** Easily program and remotely control your solar setup via RESOL Service Center Software and VBus connectivity.
- • **Comprehensive System Monitoring:** Stay ahead with an illuminated display, real-time clock, and operating hours counter for proactive maintenance.

## Overview

The ReSol DeltaSol BS/Plus is a cutting-edge solar zone controller designed for dual-zone solar thermal systems. Featuring four high-accuracy temperature sensors, dual pump relays with variable speed control, and integrated energy metering, it ensures efficient, customizable management of water and auxiliary heating zones. With advanced safety functions, remote programmability, and real-time system monitoring, it empowers professionals to optimize solar thermal performance while safeguarding system integrity.

## 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 |
|---------------|-------|
| ASIN | B007EVJHI4 |
| Best Sellers Rank | #1,378,696 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,702 in Renewable Energy Controllers |
| Brand Name | Northern Lights Group |
| Manufacturer | PAW |
| Material Type | Plastic |
| UPC | 760537188434 |
| Voltage | 2 Volts (DC) |

## Product Details

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

## Images

![Solar Controller - ReSol DeltaSol BS/Plus - Image 1](https://m.media-amazon.com/images/I/31cR5XnkeTL.jpg)
![Solar Controller - ReSol DeltaSol BS/Plus - Image 2](https://m.media-amazon.com/images/I/410UKXst+ML.jpg)

## Frequently Bought Together

- Solar Controller - ReSol DeltaSol BS/Plus
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**Shop now:** [https://www.desertcart.co.uk/products/27181188-solar-controller-resol-deltasol-bs-plus](https://www.desertcart.co.uk/products/27181188-solar-controller-resol-deltasol-bs-plus)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-18*