Beck Air Pressure Differential Switches
Differential Pressure Switch Series: 930 by Beck Sensortechnik GmbH
The 930 Climair® is an adjustable differential pressure switch for monitoring overpressure, vacuum, or differential pressure in air and other non‑combustible, non‑aggressive gases. The switching point is set directly on the scaled knob—no manometer required. With overlapping ranges from 20 Pa to 5,000 Pa and IP54/IP65 builds, 930 is ideal for filter monitoring, fan proving, duct airflow, damper/fire‑flap control and frost protection in HVAC.Product Information
Data Sheet 930 DOWNLOAD
Data Sheet 930 EX DOWNLOAD
Data Sheet 930 UL DOWNLOAD
930.8X Climair Manual (DE,EN) DOWNLOAD
901_930_EX - ATEX EU-Type Examination Certificate BV (EN) DOWNLOAD
901_930 EX ATEX CE Declaration of Conformity (DE,EN) DOWNLOAD
901_930 EX ATEX Quality Assurance Notification (EN) DOWNLOAD
911.8, 930.8 - CE EU Konformitätserklärung_ Declaration of Conformity (DE,EN) DOWNLOAD
901_UL, 911.8_UL, 930_UL, 930.8MR - ETL Authorization to Mark UL508 DOWNLOAD
911.82, 930 - GAR_CE EU Konformitätserklärung_ Declaration of Conformity (DE, EN) DOWNLOAD
911.82, 930 - GAR_DVGW EU-Baumusterprüfbescheinigung EU type examination certificate (DE,EN) DOWNLOAD
901.11, 901.61, 901.62, 901.63, 901.64, 901.65, 911.8x, 930.8x - UKCA_GAR Declaration of Conformity (EN) DOWNLOAD
930.8x Climair, 911.82x - UKCA GAR BSI Certificate 593746 (EN) DOWNLOAD
Application Details
- Air filter monitoring (AHUs, CRAC units) — provides early indication or alarm for filter clogging.
- Fan proving / airflow interlock — ensures airflow is established before enabling heaters or burners.
- Duct airflow supervision — simple limit switching for VAV and general ventilation ducts.
- Damper & fire‑flap control — status feedback via an adjustable setpoint.
- Industrial cooling-air circuits & frost protection — protects heat exchangers from freezing.
Why Choose the 930
- Tool-free setpoint adjustment — convenient knob with guide-value scale; optional switching differential adjustment.
- Wide, overlapping ranges — variants from 20 to 5,000 Pa cover most HVAC applications.
- Compact and robust design — PA 6.6 housing with transparent cover; standard IP54, optional IP65 protection.
- Electrical versatility — standard and low-current contact options; AMP 6.3 mm quick-connect terminals.
- Certified and approved — UL and ATEX type-tested versions available in select series.
| Medium | Air and other non‑combustible, non‑aggressive gases (HVAC/air‑side applications). |
| Pressure Ranges |
Setpoint via scaled knob; switching differential adjustable by screwdriver. |
| Operating temperature | –20…+85 °C |
| Housing / protection | Housing PA 6.6, transparent cover; IP54 (with cover) IP00 (without cover) IP65 variants available. |
| Pressure connections | Two hose stubs, 6 mm OD — P1 (+) high pressure, P2 (–) low pressure. |
| Electrical data | Standard contact: max 1.0 A (0.4 A) / 250 VAC Low‑current version: 0.1 A / 24 VDC |
| Electrical connection | AMP 6.3 × 0.8 mm quick‑connects (DIN 46244); optional screw terminals/cable gland |
| Contact arrangement | Changeover (COM–NC–NO) |
| Service life | ≥ 106 switching cycles (mechanical) |
| Options / approvals | UL variants ATEX type‑tested variants IP65 builds Duct kits Restrictors 0.3/0.5/0.8 mm Mounting brackets |
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