10
SWITCH MECHANISMS
SWITCH TYPE (see table below - "SWITCH MECHANISMS")
0
SPDT with silver contacts
1
DPDT with silver contacts
2
SPDT with gold plated contacts
3
DPDT with gold plated contacts
4
Hermetically sealed, SPDT with silver contacts
6
Hermetically sealed, SPDT with gold plated contacts
T 3
complete code for TUFFY
®
T3
MODEL IDENTIFICATION
SEE PAGE 9
HOUSING MATERIALS AND CABLE ENTRY
Consult factory for proper partnumbers for FM/CSA approved units
TUFFY
®
T3 is available with a selection of switch modules that vary in switch rating (Amp) and max process temperature
allowance. The max temperature is dependent upon the housing material selected.
Electric switch rating
Process temperature range
V AC
V DC
@ 40 °C (100 °F) ambient temp.
Code Contacts and type
120 240 24 120
Cast Iron
Cast Aluminium
0
SPDT with silver contacts
10.0 10.0 6.0 0.6 -40 °C to +400 °C
(-40 °F to +750 °F)
-40 °C to +345 °C
(-40 °F to +650 °F)
1
DPDT with silver contacts
10.0 10.0 6.0 0.6 -40 °C to +400 °C
(-40 °F to +750 °F)
-40 °C to +345 °C
(-40 °F to +650 °F)
2
SPDT with gold plated contacts
0.1 -
0.1 -
-40 °C to +190 °C
(-40 °F to +375 °F)
-40 °C to +160 °C
(-40 °F to +325 °F)
3
DPDT with gold plated contacts
0.1 -
0.1 -
-40 °C to +190 °C
(-40 °F to +375 °F)
-40 °C to +160 °C
(-40 °F to +325 °F)
4
HS SPDT with silver contacts
1.0 1.0 3.0 0.5 -55 °C to +400 °C
(-65 °F to +750 °F)
-55 °C to +345 °C
(-65 °F to +650 °F)
6
HS SPDT with gold plated contacts 0.5 0.5 0.5 0.5 -55 °C to +400 °C
(-65 °F to +750 °F)
-55 °C to +345 °C
(-65 °F to +650 °F)
1
Cast aluminium, single
3
⁄
4
" NPT cable entry,
ATEX II 1/2 G / IECEx Ex d IIC T6 Ga/Gb
2
Cast iron, single
3
⁄
4
" NPT cable entry,
ATEX II 1/2 G / IECEx Ex d IIC T6 Ga/Gb
3
Cast aluminium, single M20 × 1,5 cable entry, ATEX II 1/2 G / IECEx Ex d IIC T6 Ga/Gb
4
Cast iron, single M20 × 1,5 cable entry,
ATEX II 1/2 G / IECEx Ex d IIC T6 Ga/Gb
M
Cast aluminium, single
3
⁄
4
" NPT cable entry, ATEX II 1 G / IECEx Ex ia IIC T6 Ga
N
Cast iron, single
3
⁄
4
" NPT cable entry,
ATEX II 1 G / IECEx Ex ia IIC T6 Ga
P
Cast aluminium, single M20 × 1,5 cable entry, ATEX II 1 G / IECEx Ex ia IIC T6 Ga
R
Cast iron, single M20 × 1,5 cable entry,
ATEX II 1 G / IECEx Ex ia IIC T6 Ga
DESIGN CODE AND FLANGE MATERIAL
Design codes
ASME
Flange material
Model Standard ASME B31.3 NACE B31.3 & NACE
1
2
–
–
Carbon steel
T31/T32/T35
A
E
J
N
Carbon steel w. 316/316L cladding
T3B/T3C
B
F
K
P
316/316L stainless steel
T33
C
G
L
R
Carbon steel w. Hastelloy C cladding
D
H
M
T
Hastelloy C (2.4819)
X = product with a specific customer requirement
