Help. i have a room thermostat powered by 220v but the boiler must have zero current input, just a short circuit. how do i wire this up

There are many variations on a theme of boiler control signal operation. You have to be 100% sure of what you are doing. Its really a job for an electrically trained person with boiler control system knowledge . Ideally you would be better getting a thermsotat design that has a set of clean contacts in it (built in relay) Rather than trying to create the same logic with an external relay. However, If your present wall thermostat design has 3 wires going to it. Live / Neutral and SW (switch) . At a suitable point connect a neutral wire to one side of the relay coil (2) and connect the SW wire from the stat to the other side of the relay coil (7) Connect two wires (your zero input two wires) from a normally open set of relay contacts say across (1) and (3) When the thermostat closes calling for heat, the SW wire becomes 220VAC live and pulls in the relay coil. The open contacts across (1) and (3) now close and give the boiler the go signal.

Will this control 2 kw Emerson from a temperature controller

Although 8amps (2KW) it is tech within the AC 220/250 V 10A rating of the contacts for a resistive load (immersion heater) I would look for a relay with a much higher contact rating amperage to ensure its longevity.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Heschen MK2P-I Relay with Socket DPDT 8 Pin 10A AC 220V Coil

Heschen MK2P-I Relay with Socket DPDT 8 Pin 10A AC 220V Coil

Product ID: 88932895

Details

Connector type
Plug-In
Contact material
Plastic
Contact type
dpdt
Current rating
7 Amps
Mounting type
Plug In Mount

⚡10A heavy-duty load capacity

🔌Plug-in socket for fast DIN rail mounting

👁️Transparent casing for clear visual status

R492

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Description

⚙️ Elevate your control game with Heschen’s powerhouse relay—where reliability meets speed!

SEE THE ACTION - Durable transparent casing lets you monitor relay status at a glance—no guesswork
LOAD LIKE A PRO - DPDT 8-pin relay handles up to 10A at 250V AC, built for demanding industrial use
POWER PERFECTED - Strict AC 220V coil voltage ensures precise, burnout-free operation
VERSATILE AUTOMATION - Ideal for PLC panels, HVAC systems, and custom power distribution setups
PLUG PLAY EFFICIENCY - Includes PYF83A socket base for instant, secure wiring and rapid installation

The Heschen MK2P-I Relay with Socket is a robust DPDT 8-pin electromagnetic relay designed for industrial automation. Operating strictly at AC 220V coil voltage, it supports heavy loads up to 10A at 250V AC. The included PYF83A plug-in socket base enables quick DIN rail mounting and secure wiring. Its transparent casing offers easy visual inspection, making it a trusted choice for PLC control panels, HVAC thermostats, and power distribution boards.

Specifications

ASIN	B077XWJRFV
Best Sellers Rank	11,895 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 27 in Relays
Brand	Heschen
Coil Voltage	220 Volts
Connector Type	Plug-In
Contact Current Rating	10 Amps
Contact Material	Plastic
Contact Type	dpdt
Country Of Origin	China
Current Rating	7 Amps
Customer Reviews	4.5 4.5 out of 5 stars (540)
Item Highlight	Gereral Purpose Relay,pyf83a base included, 250vac 28vdc load, plug in terminal, industrial automation, double pole
Manufacturer	Heschen Electric Co.Ltd
Manufacturer Part Number	MK2P-I AC220V
Minimum Switching Voltage	220 Volts
Model Number	MK2P-I AC220V
Mounting Type	Plug In Mount
Number of Items	1
Operation Mode	Automatic
Specification Met	IEC/EN 60947
UPC	670534174951
Wattage	500 Milliwatts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R492

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews