We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Danfoss Pressure switch RT 121 - Controls
DanfossControls

Danfoss Pressure switch RT 121

The Danfoss Pressure Switch RT 121 is a pressure-operated control device with unipolar changeover contact, designed for industrial, marine, and boiler safety installations. Operating across a pressure range of −1 to…

SKU 3G-CBM-01872

Also listed as: DAN 05030 · DAN-05030

Brand
Danfoss
Item
Pressure switch RT 121
Category
Controls
UNSPSC
39121026 — Control power transformer
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Danfoss
applications
industrial, marine, boiler safety installations
contact type
unipolar changeover contact
control method
pressure-operated
pressure range
−1 to 0 bar
available variants
standard pressure switches, differential pressure switches, adjustable neutral zone pressure switches
recommended use case critical
safety pressure switches for critical applications
recommended contact coating low duty
gold-plated contacts for low switching frequency or low voltage operation

Datasheet Content

MAKING MODERN LIVING POSSIBLE Pressostats RT Fiche technique Fiche technique Pressostats, type RT Contenu Page Description ..................................................................................................................................................................................3 Récapitulatif des types de pressostats selon les plages de pression......................................................................3 TCaractéristiques techniques et numéros de code, tous les types de pressostats ..........................................4 Homologations ..........................................................................................................................................................................5 Caractéristiques techniques et matériaux en contact avec le fluide ......................................................................6 Dimensions et poids ................................................................................................................................................................7 Montage .......................................................................................................................................................................................8 Description du fonctionnement .........................................................................................................................................9 Description du fonctionnement des pressostats RT homologués....................................................................... 10 Pressure switch for liquid level control........................................................................................................................... 10 Utilisations ................................................................................................................................................................................ 11 Pressostats à zone neutre réglable .................................................................................................................................. 12 Pressostats différentiels ....................................................................................................................................................... 13 Pièces et accessoires RT ....................................................................................................................................................... 15 2 IC.PD.P10.B4.04-520B3975 Fiche technique Pressostats, type RT Description Les pressostats RT comportent un contact inver- seur unipolaire commandé par pression. La position de ce contact est fonction de la pres- sion d’entrée et de la valeur de consigne. La gamme RT offre, en plus des pressostats stan- dards, des pressostats différientiels et des presso- stats à zone neutre réglable. Ils s’utilisent surtout dans l’industrie et dans la ma- rine. La gamme RT comprend aussi des pressostats de sécurité pour installation sur chaudières. Pour les applications où le fonctionnement du pressostat est particulièrement critique, pour des raisons humaines ou économiques, il est recom- mandé d’utiliser des pressostats de sécurité. Si le pressostat doit commuter moins souvent ou à basse tension, nous recommandons les contacts plaqués or. Pressostats RT Plage 0 5 10 15 20 25 30 bar pe Type bar −1 → 0 RT 121 0 → 0.3 RT 113 0.1 → 1.1 RT 112 0.2 → 3 RT 110 Pressostats standards −0.8 → 5 RT 1, 1A 0.2 → 6 RT 200 1 → 10 RT 116 4 → 17 RT 5, 5A 10 → 30 RT 117 0.1 → 1.1 RT 112 Pressostats pour installations 0 → 2.5 RT 33B, RT 35 W à vapeur homologuées Vd TÜV 1 → 10 RT 30 AW/ AB/ AS 2 → 10 RT 31 W/ B/ S 5 → 25 RT 19 W/ B/ S 5 → 25 RT 32 W/ B −0.8 → 5 RT 1 AL Pressostats à zone 0.2 → 3 RT 110 L neutre réglable 0.2 → 6 RT 200 L 4 → 17 RT 5 AL 10 → 30 RT 117 L Δp = 0-0.9 bar Pressostats différentiels −1 → 6 RT 266 AL Δp = 0.1-1 bar −1 → 6 RT 263 AL Δp = 0.1-1.5 bar −1 → 9 RT 262 AL/ A Δp = 0.5-4 bar −1 → 18 RT 260 AL/ A Δp = 0.5-6 bar −1 → 36 RT 260 A Δp = 1-6 bar −1 → 36 RT 265 A IC.PD.P10.B4.04-520B3975 3 Fiche technique Pressostats, type RT Caractéristiques techniques Lors de la commande, indiquer le type et le Les lettres utilisées dans les désignations ont la et numéros de code numéro de code. signification suivante: A: L’appareil convient à l’ammoniac. L: L’appareil est avec zone neutre réglable Pressostat Versions conseillées Plage de Différentiel Pression Pression Raccord de No de code réglage mécanique de service d’essai pression (pe = églable/ fixe max. max. ISO 228/1 pression PB p’ relative) Type bar bar bar bar −1 → 0 0.09 → 0.4 7 8 G 3/8 A 017-521566 RT 121 RT 113 0 → 0.3 0.01 → 0.05 0.4 0.5 G 3/8 A 017-519666 RT 113 réglage manuel et façade 0.1 → 1.1 0.07 → 0.16 7 8 G 3/8 A 017-519166 017-519366 RT 112 avec fenêtres 0.1 → 1.1 0.07 7 8 G 3/8 A 017-519266 RT 112 0.2 → 3 0.08 → 0.25 7 8 G 3/8 A 017-529166 017-529266 RT 110 0.2 → 3 0.08 7 8 G 3/8 A 017-511066 RT 110 −0.8 → 5 0.5 → 1.6 22 25…

Technical Documents

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

Product Description

The Danfoss Pressure Switch RT 121 is a pressure-operated control device with unipolar changeover contact, designed for industrial, marine, and boiler safety installations. Operating across a pressure range of −1 to 0 bar, it delivers contact switching suitable for critical safety applications. 3G Electric sources this unit in Singapore and across Southeast Asia with full DDP logistics handling; variants including standard, differential, and adjustable neutral zone configurations are available to meet specific operational requirements.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

Where can I buy the Danfoss RT 121 pressure switch in the Philippines?

Order from 3G Electric Philippines. We deliver to Manila, Quezon City, and CALABARZON regions. 3G Electric handles full logistics, Bureau of Customs documentation, and PHP invoicing for industrial equipment sourcing.

What is the lead time for the Danfoss RT 121?

Lead time on request. 3G Electric sources this control device to order. Contact us for availability and delivery schedule to your Philippines facility.

What pressure range does the Danfoss RT 121 operate within?

The RT 121 operates from −1 to 0 bar with unipolar changeover contact. Designed for industrial, marine, and boiler safety installations requiring critical pressure control and switching.

Used in

Common applications for Danfoss
Light-oil industrial burners — OD / OD-H nozzles as scheduled replacement parts
Heating-boiler oil-supply circuits — BFP 10L / 11L / 41L pumps and coupling kits
Burner-rack solenoid valves — EV and EVR series for oil and gas shut-off
Legacy plant troubleshooting — matching a failed burner nameplate to correct Danfoss nozzle/pump combination
Refrigeration pressure controls — KP / RT series for secondary-refrigerant loops

Danfoss Products

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

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