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Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Specifications
Model Number :
003N0050
Ambient Temperature :
-
Brand Name :
Danfoss
Power Supply :
1
MOQ :
1
Delivery Time :
Negotiable
Payment Terms :
T/T,XT,ALIPAY
Supply Ability :
100pcs per month
Price :
Negotiable
Certification :
ATEX
Electrical Rating :
G
Place of Origin :
DK
Certifications :
S
Packaging Details :
carton
Description
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 (KPI 35) electronic room thermostat. 5–35°C setpoint, SPDT 10(4)A @ 230V AC, surface mount, for heating/cooling HVAC zone control.

Product Overview

The Danfoss 003N0050​ is the commercial reference for the Danfoss KPI 35 electronic room thermostat​ — a bimetal-sensing, line-voltage thermostat designed for space temperature control in heating and cooling systems. It features a 5–35 °C adjustable temperature range, SPDT (Single Pole Double Throw) switch contacts​ rated at 10(4)A @ 230V AC, and is intended for surface mounting in residential, commercial, or light industrial HVAC zones. The thermostat operates on a 2-wire or 3-wire control scheme​ depending on whether it switches a pump, fan coil, or zone valve directly.

Technical Specifications (Electrical & Control)

Parameter
Specification
Danfoss Code / Ref​
003N0050​ (KPI 35 — White, Standard European Version)
Product Family​
Danfoss KPI Series — Electronic Room Thermostat
Sensor Element​
Bimetal Helix / Capillary (Electronic KPI — temp.-sensitive resistor bridge in KPI-E; KPI 35 = electromechanical bimetal snap-action)​
Temperature Set Range​
5 … 35 °C​ (Knob with scale)
Switch Type​
SPDT — 1 × Common, 1 × NO (Heat), 1 × NC (Cool/Off)​
Contact Rating​
10 A @ 230 V AC (Resistive)​ / 4 A @ 230 V AC (Inductive — e.g., motorized valve coil)​
Differential (Hysteresis)​
Approx. 0.5 … 1.0 K​ (fixed — bimetal snap-action)
Supply / Switch Voltage​
230 V AC, 50/60 Hz​ (Switched — not a power consumer; uses line voltage for switching)
Ambient (Room) Temp. Rating​
0 … +50 °C (Storage -20 … +60 °C)

Technical Specifications (Mechanical & Environmental)

Parameter
Specification
Mounting​
Surface Mount​ (Back Box Compatible — typically Ø60 mm flush box or surface backplate included)
Housing Material​
ABS Plastic (White, RAL 9010)
Cable Entry​
Rear & Bottom Knockouts (PG glands not always included)
Degree of Protection​
IP30​ (Indoor Use Only)
Dimensions (H×W×D)​
~86 × 86 × 38 mm (Typical KPI 35)
Weight​
~0.15 kg
Standards / Approvals​
CE, EN 60730-1 (Class I Control Device), RoHS
Included Accessories​
Mounting screws, setpoint scale overlay

Key Features

  • SPDT Switching:​ Provides both heating (NO) and cooling/alarm (NC) contact from one device — useful for 3-wire fan-coil or heat/cool changeover control.
  • High Contact Rating:​ 10A resistive allows direct switching of small circulation pumps, zone valve motors (check inrush!), or fan relays without an intermediate contactor.
  • Simple Calibration:​ Setpoint knob with clear °C scale; no batteries or external power required (purely electromechanical).
  • Wide Application Range:​ 5–35°C span covers frost protection (5°C) through comfort heating and moderate cooling setpoints.

Applications

  • Hydronic Heating Zones:​ Switching zone valve motors (e.g., VG) or circulating pump relays in underfloor or radiator systems.
  • Fan Coil Units (FCU):​ 3-wire control — NO contact to heating valve / NC contact to cooling stage or fan interlock.
  • Server / Plant Room Frost Protection:​ Setting to 5–8°C to energize trace heating or space heaters.
  • Retrofit Thermostat:​ Direct replacement for older line-voltage room stats in European-style HVAC installs.
Note: The 003N0050 (KPI 35)​ is an electromechanical bimetal SPDT room thermostat. For a digital programmable / PI-controlled​ version with LCD and 0–10V/relay output, see the Danfoss RTD / ECL Comfort / Icon​ series. If you need a 2-wire NO-only (SPST) version, the KPI 30 (003N0040) is the single-pole variant. Always verify valve/pump coil inrush current doesn't exceed the 4A inductive rating before direct switching.

Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Frequently Ask & Questions
Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

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Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC

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Product Detail
Model Number :
003N0050
Ambient Temperature :
-
Brand Name :
Danfoss
Power Supply :
1
MOQ :
1
Delivery Time :
Negotiable
Contact Supplier
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC
Danfoss 003N0050 | KPI 35 Electronic Room Thermostat, 5–35°C, SPDT 230V AC

Achievers Automation Limited

Verified Supplier
1 Years
hong kong
Since 2012
Business Type :
Agent, Importer, Trading Company
Main Products :
Allen Bradley PLC Controllers, Pepperl Fuchs Safety Barrier, E&H Instruments
Total Annual :
2000000-3000000
Employee Number :
>50
Certification Level :
Verified Supplier
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