Differential
Pressure Switch
Series: 930
Climair®
Description
Applications
Specifications
Description
BENEFITS
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.
Applications
Application Details
- Air filter monitoring (AHUs, CRAC units) — early clogging indication or alarm.
- Fan proving / airflow interlock — ensure airflow before enabling heaters or burners.
- Duct airflow supervision — simple limit switching for VAV/ventilation ducts.
- Damper & fire‑flap control — status feedback via adjustable setpoint.
- Industrial cooling‑air circuits & frost protection on heat exchangers.
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Why 930
- Tool‑free setpoint: knob with guide‑value scale; optional adjustment of switching differential.
- Wide, overlapping ranges: 20…5,000 Pa variants cover most HVAC use‑cases.
- Compact & robust: PA 6.6 housing, transparent cover; IP54 standard, IP65 option.
- Electrical versatility: standard and low‑current contact options; AMP 6.3 mm quick‑connects.
- Approvals available: UL and ATEX type‑tested versions (series options)
Specifications
| 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 |
Adjustment Knob Options
Options for adjustment knob scale are
- mbar
- Pascal
- Pascal and inWC
custom marking and logo are possible upon request
For factory set switching points, please refer to our 911.82 series, providing all 930 functionality excluding the adjustment knob.
IP and Certification Options
930 Climair can be provided in different certification options, including, but not limited to
- IP00
- IP54
- IP65
- ATEX (EX)
- UL
Cable Feedthrough Options
Options are
- cable conduit M20x1.5
- cable conduit NPT 1/2
- cap nut conduit AF20
Pressure Ranges
| Matrix | Pressure Ranges |
|---|---|
| 0 | 20 to 200 Pascal (0.2 to 2.0 mbar) |
| 0B | 20 to 300 Pascal (0.2 to 3.0 mbar) |
| 4 | 30 to 400 Pascal (0.3 to 4.0 mbar) |
| 3 | 50 to 500 Pascal (0.5 to 5.0 mbar) |
| 5B | 100 to 1000 Pascal (1.0 to 10.0 mbar) |
| 5 | 200 to 1000 Pascal (2.0 to 10.0 mbar) |
| 6 | 500 to 2500 Pascal (5.0 to 25.0 mbar) |
| 7 | 1000 to 4000 Pascal (10 to 40 mbar) |
| 7B | 1000 to 5000 Pascal (10 to 50 mbar) |
