Danfoss RT121E Vacuum Pressure Switch -1 to 0 bar SPDT Auto Reset ATEX
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Product Description
Danfoss RT121E mechanical vacuum pressure switch with bellows sensing element, single-pole double-throw (SPDT) gold contact and auto reset, ATEX Category 2 Zone 1 certified. Regulating range -1 to 0 bar; G 3/8 male pressure connection (ISO 228-1); enclosure IP66. Danfoss code number 017-618466.
Technical Specifications
- Brand
- Danfoss
- Model
- RT121E pressure switch
- Code number
- 017-618466
- Regulating range (Pe)
- -1 to 0 bar
- Maximum working pressure
- 7 bar (100 psig)
- Contact function
- SPDT gold (single-pole double-throw)
- Reset
- Auto
- Differential
- 0.09 to 0.4 bar (adjustable)
- Pressure sensing element
- bellows
- Pressure connection
- G 3/8 male (ISO 228-1)
- Enclosure
- IP66
- Ambient temperature range
- -20 to +65 degC (-4 to +149 degF)
- Cable entry
- 2 x Pg 13.5
- Hazardous-area
- ATEX Category 2, Zone 1
- Intrinsically safe contact load
- Ci=0.5 nF; Ii=0.5 A; Li=0.2 uH; Pi=1 W; Ui=29 V
- Maximum test pressure
- 8 bar (116 psig)
- Standards
- EN 60947-4, EN 60947-5
- Approvals
- CE, EAC, ATEX
- Product type
- RT121E
- Product group
- Switches and thermostats
- Max. test pressure
- 116.0 psig
- Max. test pressure Pe
- 8.0 bar
- Max. working pressure
- 7.0 bar
- CE mark
- Yes
- REACH candidate-list substances
- Lead (CAS no. 7439-92-1)
- Net weight
- 0.858 kg
- EAN
- 5702428046558
- Contact rating
- Ci=0.5 nF; Ii=0.5 A; Li=0.2 uH; Pi=1 W; Ui=29 V
- EEE category
- 5 small equipment (any external dimension < 50 cm)
- Electrical conn. Male/Female
- Female
- Electrical connection
- Screwed cable entry
- Electrical connection size
- 2xPg 13.5
- Electrical connection standard
- DIN 40430
- Electrical spec. standard
- EN 60947-4/-5
- EN 60947 electrical properties
- Insulation: 400V; Pollution degree: 3; Rated impulse voltage: 4 kV; Short circuit prot, fuse: 10A
- EN 60947 wiring properties
- Flex, ferrules: 0.2-1.5 mm2; Flex, no ferrules: 0.2-2.5 mm2; Solid/stranded: 0.2-2.5 mm2
- Enclosure rating IP
- IP66
- EX Sales text
- -20C<ta<+65C; II 2G Ex ia IIC T6...T1 Gb
- In scope of WEEE
- Yes
- Pressure connection size
- 3/8
Standards & Compliance
- Standard
- EN 60947-5
- Material
- Bellows sensing element
- Thread Standard
- ISO 228-1
- Pressure Rating
- 7 bar
- Temperature Range
- -20 to +65 degC
- IP Rating
- IP66
- Classification / Approval
- CE, EAC, ATEX
- HS Code
- 9032.20
Compatibility & Fitment
G 3/8 male (ISO 228-1) pressure connection. Confirm range and reset type against application.
Product Documentation
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 017-618466?
- 017-618466 can be ordered from cballast.com as a Danfoss catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Danfoss product?
- The manufacturer part number is 017-618466.
- What is the HS code for 017-618466?
- The customs tariff (HS) code for 017-618466 is 9032.20.
- Who manufactures 017-618466?
- 017-618466 is a Danfoss product in the Sensors & Instrumentation range.
- Is a datasheet available for 017-618466?
- Yes — the 017-618466 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 017-618466?
- The minimum order quantity is 1.
- Is 017-618466 available?
- Yes — 017-618466 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).