Safe Signal EPS120-1 Pres Switch
The Safe Signal EPS120-1 is a supervisory pressure switch with a single SPDT contact. It monitors air pressure in sprinkler pipes or pressure tanks, as well as the air or water pressure supplies of automatic water control valves.
SKU: EPS120-1
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Product details
The Safe Signal EPS120-1 is a supervisory pressure switch with a single SPDT contact. It monitors air pressure in sprinkler pipes or pressure tanks, as well as the air or water pressure supplies of automatic water control valves.
It ships set for a nominal 115 psi system, operating at 105 psi on falling pressure, and can be adjusted from 10 to 200 psi with a tool-free wheel. The UL 4X / NEMA 4 enclosure suits indoor or outdoor installation.
Key features
- One SPDT (Form C) contact for low-pressure supervision
- Tool-free adjustment wheel, 10 to 200 psi
- Reinforced diaphragm resists pressure spikes
- Two conduit entrances: one knockout and one open hole for 1/2 in conduit fittings
- Tamper-resistant cover screws
- UL and ULC listed, FM approved
- Optional cover tamper switch P/N 546-8000
Compatibility
Used on sprinkler system air pressure in pipes or pressure tanks, on water or air pressure supplies of automatic water control valves, and on fire alarm control panel supervisory circuits.
Documents
Specifications
| Model | EPS120-1 |
| Contacts | One set SPDT (Form C) |
| Contact ratings | 10.0 A, 1/2 HP @ 125/250 VAC; 2.5 A @ 6/12/24 VDC |
| Adjustment range | 10 to 200 psi |
| Factory setting | Operates at 105 psi on decreasing pressure (nominal 115 psi system) |
| Maximum operating pressure | 300 psi |
| Differential | Approx. 3 psi @ 10 psi, 9 psi @ 200 psi |
| Pressure connection | 1/2 in NPT male |
| Operating temperature | -40°F to 160°F (-40°C to 71°C) |
| Enclosure | UL 4X, NEMA 4, indoor or outdoor use |
| Dimensions | 5.120 in H x 3.325 in W x 4.250 in L (13.0 x 8.4 x 10.8 cm) |
| Shipping weight | 1.2 lb (0.54 kg) |
| Listings | UL, ULC, FM |
| Warranty | 3 years |