Datasheet > EPSA40-2

EPSA40-2

更新时间： 2024-11-01 06:57:47

品牌	Logo	应用领域
SYSTEMSENSOR		开关监控
页数	文件大小	规格书
2页	168K
描述
Supervisory Pressure Switches

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EPSA40-2 数据手册

EPS40-1 AND EPS40-2

Supervisory Pressure

Switches

System Sensor EPS40 Series switches are designed for

use in dry pipe systems or pressure tanks and water

pressure supplies of automatic water control valves.

Features

The EPS40-1 has a single SPDT switch while the EPS40-2 model

contains two SPDT switches. The EPS40 Series features ﬁeld

adjustable pressure sensitivity to provide an alarm response between

10 and 100 psi. All models are factory set for use in a nominal 40 psi

system. The EPS40-1 is factory set to respond at 30 psi at decreasing

pressure while the EPS40-2 is factory set to respond at 50 psi on

rising pressure and 30 psi at decreasing pressure. The pressure

adjustment wheel requires no special tools and does not aﬀect

switch synchronization on the EPS40-2. The EPS40-1 and EPS40-2

supervisory pressure switches are NEMA 4 rated.

• Sensitivity adjustment wheel, no special tools required

• Reinforced diaphragm resists pressure spikes

• Two conduit entrances

• Both one- and two-switch models available

Agency Listings

118f/01

0X0A7.AY

CS169

S739

VdS

167-93-E

G4020028

7770-1209:147

Specifications, EPS40-1 and EPS40-2

Architectural/Engineering Speciﬁcations EPS40-1 (SPDT), EPS40-2 (2/SPDT)

Model shall be an EPS40-1 or EPS40-2 pressure type waterﬂow switch as manufactured by System Sensor of St. Charles, IL. They shall be installed on the sprinkler

system with connection as shown on the drawings and/or as speciﬁed herein. Pressure switches shall be of the bellows-activated type. Switches shall have

a maximum service pressure rating of 250 psi and shall be adjustable from 10 – 100 psi. There shall be one (1) or two (2) SPDT contacts rated at 10.0 Amp @

125/250 VAC and 2.5 Amp @ 6/12/24 VDC. The contractor shall furnish and install, where indicated on the plans, pressure switches according to appropriate

NFPA standards. Switches shall be provided with a ½˝ NPT male pressure connection to be connected into the air supply line on the system side of any shut-oﬀ

valve. Switches shall provide 1 knockout type and 1 open hole for ½˝ conduit ﬁtting attachment and a ground screw provision for electrical grounding.

The switch enclosure shall be weatherproof and carry a UL 4x/NEMA 4 rating when used with proper electrical ﬁttings and conduit. The cover shall incorporate

tamper-resistant screws. The unit shall be listed by Underwriters Laboratories, Inc., the California State Fire Marshal, MEA, CSFM, LPCB, VdS and approved by

Factory Mutual.

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