Honeywell STT250 specifications Housing Specifications in mm, Aluminium Direct Head Mount Housing

Housing Specifications (in mm)

Aluminium Direct Head Mount Housing

Suitable for general purpose or Intrinsically Safe applications. Dimensions shown in Fig. 1. Housing entry length = 41 mm Material : LM24 Aluminium die casting. Sensor entry : 1/2”NPT

Cable / conduit entry : 1/2”NPT or M20x1.5.

Weight : 0.3kg (0.7 lb)

Paint cover : beige polyester/ epoxy hybrid.

Enclosure classification : IP65

Order as STT250 Table II selection A _ _.

	1/2" NPT or M20
33	40
	2 x M3
2 x M4
	41
	1/2" NPT
B-B section	A-A section

Figure 1

Plastic Direct Head Mount Housing

Suitable for lightweight installation in salt air environments and for general purpose or Intrinsically Safe installations.

Maximum temperature = 70° C (158° F) Dimensions shown in Fig. 2.

Housing entry length = 26,5 mm Material : ABS

Sensor entry : 1/2”BSP (equivalent to 1/2”NPT)

Cable/ conduit entry : M20x1.5

Colour : light beige

Weight : 0.1kg (0.2 lb)

Enclosure classification : IP67

Order as STT250 Table II selection P _ _.

A
	85
33
57	1/2" NPT or M20
2 x M4
	26.5
	1/2" NPT
A
C-C section	A-A section

Figure 2

Cast Iron Direct Head Mount Housing

Suitable for Flame-Proof EEx d applications when sensor with flame trap is included in total assembly.

Dimensions shown in Fig. 3. Housing entry length = 41 mm Material : Cast Iron

Sensor entry : 1/2”NPT

Cable/ conduit entry : M20x1.5

paint cover : light beige

Weight : 2.5kg (5.5 lb)

Enclosure classification : IP68 Conforms to the applicable requirements of NEMA 7 and 9.

Order as STT250 Table II selection B _ _.

	(	104)
2 x M4
33	111	1/2" NPT	or M20
2 x M4
41
		1/2" NPT
B-B section		A-A section

Figure 3

2 EN0I-6032