Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Honeywell ON/OFF thermostat 2 outputs L03BM2B 230V - Switches & Thermostats
HoneywellSwitches & Thermostats

Honeywell ON/OFF thermostat 2 outputs L03BM2B 230V

Honeywell L03BM2B is an ON/OFF thermostat with 2 outputs for HVAC and industrial temperature control. It operates on 230V with a measuring range of -40 to 105°C, probe accuracy of ±0.3°C, and 0.1°C resolution. Ideal…

SKU 3G-CBM-03654

Brand
Honeywell
Item
ON/OFF thermostat 2 outputs L03BM2B 230V
Category
Switches & Thermostats
UNSPSC
39122229 — Temperature switch
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Honeywell
outputs
2
resolution
0.1°C
power supply
230V
probe accuracy
±0.3°C
measuring range
-40 to 105°C
degree of protection
IP40
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Honeywell Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Honeywell L03BM2B is an ON/OFF thermostat with 2 outputs for HVAC and industrial temperature control. It operates on 230V with a measuring range of -40 to 105°C, probe accuracy of ±0.3°C, and 0.1°C resolution. Ideal for climate management and process control applications.

Frequently Asked Questions

What is the Honeywell L03BM2B thermostat used for?

The Honeywell L03BM2B is an ON/OFF thermostat with 2 outputs for HVAC and industrial temperature control. It manages heating or cooling systems with one probe, suitable for climate management and process control applications requiring precise temperature regulation between -40 and 105°C.

What are the specifications of the Honeywell L03BM2B thermostat?

The Honeywell L03BM2B operates on 230V power supply, has 2 relay outputs rated at 12(3.6)A 240V a.c. each, a measuring range of -40 to 105°C, probe accuracy of ±0.3°C, resolution of 0.1°C, and IP40 protection. It includes an NTC 10K probe and mounts on DIN rail.

Where to buy the Honeywell L03BM2B thermostat in Singapore?

You can source the Honeywell L03BM2B thermostat through 3G Electric in Singapore. We supply this ON/OFF thermostat with 2 outputs for HVAC and industrial applications, handling logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time.

How to install the Honeywell L03BM2B thermostat?

The Honeywell L03BM2B thermostat is designed for DIN rail mounting. Connect the NTC 10K probe (included) and wire the 230V power supply and relay outputs per the wiring diagram. Set the control mode (ON/OFF or PID) and adjust setpoint and hysteresis via the front panel. Ensure compliance with EN60730 standards.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits
Not sure this is the right part? Photo-identify it

Honeywell Products

3G Electric supplies Honeywell switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
ON/OFF thermostat 1 output L03BM1B 230V
Satronic
ON/OFF thermostat 1 output L03BM1B 230V
ON/OFF thermostat 2 outlets L04BM2A 230V
Danfoss
ON/OFF thermostat 2 outlets L04BM2A 230V
ON/OFF thermostat 2 outputs L03BI2A 12VAC/DC
Fantini Cosmi
ON/OFF thermostat 2 outputs L03BI2A 12VAC/DC
ON/OFF thermostat 2 outputs L02CM2 115/230V
Fantini Cosmi
ON/OFF thermostat 2 outputs L02CM2 115/230V
ON/OFF thermostat 1 output L02BM1A 230V
Fantini Cosmi
ON/OFF thermostat 1 output L02BM1A 230V
ON/OFF thermostat 2 outputs L02AI2B 12VAC/DC
Fantini Cosmi
ON/OFF thermostat 2 outputs L02AI2B 12VAC/DC

More from Honeywell

View all Honeywell parts
Room thermostat CH115 white
Honeywell
Room thermostat CH115 white

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first