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NOSHOK
NOSHOK 300 Series Mechanical Compact SPDT Pressure Switch
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NOSHOK 300 Series: compact mechanical switch; vacuum to 4600 psig; 6 A; ±2% repeat. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Wetted parts
Standard zinc-nickel with NBR diaphragm; optional EPDM/HNBR/FKM/SS
Approvals
CE (RFI/EMI/ESD); RoHS
Switch Type
Mechanical compact snap-action with adjustable hysteresis; SPST or SPDT
Pressure Ranges
Vacuum −5 to −28 inHg through high pressure 450–4,600 psig (model 300V/300L/300H)
Contact Rating
6 A @ 125/250 Vac; 6 A @ 12/24 Vdc; solid silver contacts
Repeatability
2% of full set point range at 70 °F
Fits compact mechanical pressure switching where you need a NOSHOK 300 Series. Snap-action switch with adjustable hysteresis, SPST or SPDT, ranges from vacuum −5 to −28 inHg through high pressure 450–4,600 psig, contacts 6 A at 125/250 Vac or 12/24 Vdc, repeatability 2% of full set-point range at 70 °F, and proof pressure 870 or 5,000 psig by adjustment range.
Key advantages
- Ranges — Vacuum through ~4,600 psig
- Contacts — SPST or SPDT; 6 A class
- Repeatability — 2% of set-point range @ 70 °F
- Hysteresis — Adjustable
- Proof — 870 or 5,000 psig by range
Typical applications
- Machine pressure trips.
- Compact panel switches.
- Vacuum / high-pressure discrete.
Selection guide
- 300V / 300L / 300H
- SPST vs SPDT
- Set-point band
Common mistakes
- Exceeding proof pressure.
- Wrong contact rating.
- Ignoring 70 °F repeatability basis.
When to RFQ / what to tell us
- Range/contact.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 48597 |
| Brand | NOSHOK |
| Model | 300 Series Mechanical Compact Pressure Switch |
| Product type | Pressure Switch |
| Switch type | Mechanical compact snap-action with adjustable hysteresis; SPST or SPDT |
| Pressure ranges | Vacuum −5 to −28 inHg through high pressure 450–4,600 psig (model 300V/300L/300H) |
| Contact rating | 6 A @ 125/250 Vac; 6 A @ 12/24 Vdc; solid silver contacts |
| Repeatability | 2% of full set point range at 70 °F |
| Proof pressure | 870 psig (low) or 5,000 psig (high) depending on adjustment range |
Documents
FAQ
Q: Contacts? A: SPST or SPDT; 6 A class.
Q: Repeatability? A: 2% of set-point range @ 70 °F.
Q: What should I send for a quote? A: Range/contact, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Wetted parts | Standard zinc-nickel with NBR diaphragm; optional EPDM/HNBR/FKM/SS |
| Approvals | CE (RFI/EMI/ESD); RoHS |
| Switch Type | Mechanical compact snap-action with adjustable hysteresis; SPST or SPDT |
| Pressure Ranges | Vacuum −5 to −28 inHg through high pressure 450–4,600 psig (model 300V/300L/300H) |
| Contact Rating | 6 A @ 125/250 Vac; 6 A @ 12/24 Vdc; solid silver contacts |
| Repeatability | 2% of full set point range at 70 °F |
| Proof Pressure | 870 psig (low) or 5,000 psig (high) depending on adjustment range |
| Housing | Zinc-nickel plated steel |
| Protection | IP65 (DIN EN 175301-803 Form A); IP67 all others |
| Temperature | Media/ambient/storage −4 to 176 °F (−20 to 80 °C) |
| Service Life | >1,000,000 load cycles; max 100 cycles/min |
| Weight | Approximately 0.2 lb |