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

3G Electric
Siemens Pressure switch QPL25.050B 5-50 mbar - Gas Regulation
SiemensGas Regulation

Siemens Pressure switch QPL25.050B 5-50 mbar

Siemens QPL25.050B is a pressure switch for gas regulation applications, operating across 5-50 mbar with maximum pressure rating of 60 kPa. Compatible with 250 V~ AC or 24-48 V– DC at up to 6 A, it serves control and…

SKU 3G-CBM-04053

Brand
Siemens
Item
Pressure switch QPL25.050B 5-50 mbar
Part Number
QPL25050B
Category
Gas Regulation
UNSPSC
40142201 — Gas regulators
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

Siemens
Manufacturer Part Number
QPL25050B
voltage ac
250 V~
voltage dc
24-48 V–
max current ac
6 A
max pressure kpa
60
pressure range mbar
5-50
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

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

Product Description

Siemens QPL25.050B is a pressure switch for gas regulation applications, operating across 5-50 mbar with maximum pressure rating of 60 kPa. Compatible with 250 V~ AC or 24-48 V– DC at up to 6 A, it serves control and safety functions in gas systems.

Frequently Asked Questions

What is the Siemens QPL25.050B pressure switch used for?

The Siemens QPL25.050B is a compact pressure switch used for monitoring gas or air pressure in gas regulation systems. It serves control and safety functions, typically on gas burner trains or gas appliances, and can be configured as a minimum or maximum pressure switch.

What are the specifications of the Siemens QPL25.050B?

The Siemens QPL25.050B operates over a pressure range of 5-50 mbar with a maximum service pressure of 60 kPa. It is rated for 250 V~ AC or 24-48 V– DC at up to 6 A. The switch is designed for neutral gaseous fluids including natural gas families 1, 2, and 3.

Where to buy the Siemens QPL25.050B in Singapore?

3G Electric supplies the Siemens QPL25.050B pressure switch to Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this gas regulation component.

How to install the Siemens QPL25.050B pressure switch?

Installation must be performed by authorized specialists. Isolate the main power supply before wiring. Set the switching point by removing the cover and turning the graduated knob—clockwise for higher pressure, counterclockwise for lower. Tighten the cover screws fully to prevent tampering.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks
Not sure this is the right part? Photo-identify it

Siemens Products

3G Electric supplies Siemens gas regulation. 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
Siemens
Siemens
Siemens: Gas Controller LFM133
Relay LGB 22 230B27
Siemens
Relay LGB 22 230B27
Cell QRA 53 E 27
Siemens
Cell QRA 53 E 27
Cell QRB1A-A150B70A
Siemens
Cell QRB1A-A150B70A
Siemens
Siemens
Cell QRI2B2-B180B
Cell QRB4B-B050B70A
Siemens
Cell QRB4B-B050B70A

More from Siemens

View all Siemens parts
Pressure switch QPL25.500B 100-500 mbar
Siemens
Pressure switch QPL25.500B 100-500 mbar
Pressure switch QPL25.010B 2-10 mbar
Siemens
Pressure switch QPL25.010B 2-10 mbar
Solenoid valve 1/4" 230V SCB320A178
Siemens
Solenoid valve 1/4" 230V SCB320A178
QPL25.150B 5-150mbar pressure switch
Siemens
QPL25.150B 5-150mbar pressure switch
Gas valve VGG10.404P 1"1/2
Siemens
Gas valve VGG10.404P 1"1/2
Gas valve VGG10.504P 2"
Siemens
Gas valve VGG10.504P 2"
Gas valve VGF10.654P DN65
Siemens
Gas valve VGF10.654P DN65
Gas valve VGG10.154P 1/2"
Siemens
Gas valve VGG10.154P 1/2"

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first