Data Sheet

All specifications are subject to change without notice. All sales subject to standard

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©2023 Ashcroft Inc. t4-t7_switch_ds_RevI_10-18-23

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FEATURES

Precision SPDT or DPDT snap-acting micro

switch operation

Single setpoint adjustable from 0-100% of range

Fixed or limited adjustable deadband

Internal set point locking screw (T4)

Direct or remote reading thermal systems

Choice of temperature ranges (from -40 °F to 750 °F)

Explosion proof enclosure provides uncompromising

protection

Wide selection of switch elements

TYPICAL USES

Offshore oil rigs

Chemical and petrochemical plants

Pulp and paper mills

Power plants

Steel mills

Water and sewage treatment plants

Pumps, compressors and turbines

Boilers and burners

Degreasers and evaporators

Recovery systems

Reverse osmosis systems and filters

Food processing

Ground support equipment

Hydraulic and lubrication systems

Heating and air conditioning

Marine equipment

Specialized OEM equipment

KEY BENEFITS

• Highly reliable

• Designed for use in wide range of applications

• Easily configurable to meet your application requirements

• Hermetically sealed micro switches offer improved

reliability and safety (UL Class I Div II approval)

PERFORMANCE SPECIFICATIONS

Set Repeatability

(Accuracy):

±1% of span

Switch Type:

SPDT or 2 SPDT acting as DPDT

Setpoint:

Single setpoint - factory set or field adjustable

Deadband:

Fixed or limited adjustable deadband

Enclosure Ratings: T4-NEMA 4X, IP66

T7-NEMA 7 & 9, IP66

Enclosure Material: Watertight: epoxy coated aluminum

Explosion: epoxy coated aluminum,

316 SS (OPT.)

Pressure

Connection Size:

Direct Mount: ½ NPT Male

Remote Mount: N/A- (OPT.) ½ NPT male bushing (XBX)

Electrical

Termination:

¾ NPT Female

Direct Mount:

Stem lengths from 2¾˝ to 24˝

Remote Mount:

Capillary lengths from 5´ to 25´ (5 ft. increments)

Approvals:

Watertight: UL, CSA, CE /UKCA

Explosion: T7 series - UL, CSA, ATEX, IECEx, CE, UKCA

T7 NEMA 7 & 9,

Remote Mount Temperature Switch

(shown with optional XBX ½˝ male bushing)

T4 NEMA 4X

Direct Mount Temperature Switch

CLASS I DIV 1 GROUPS B, C, & D

CLASS II DIV 1 GROUPS E, F, & G

Sira 02ATEX1391X

CSAE 21UKEX1056X

IECEx

CSA 14.0077X

II 2GD

Ex d IIC T6 Gb

Ex tb IIIC T85 °C Db

Ta = -20 °C to 60 °C

WETTED COMPONENTS

Direct Mount

Remote Mount

½ NPT: 316 SS

Bulb: 316 SS

Bulb, capillary: 316 SS

Spiral armor: 302 SS

SIL 3

CAPABLE

T4/T7 Series NEMA 4X, 7/9 Temperature Switches