ISO 9001
Defender
®
Installation Instructions
Part No. 11936.Rev.1.02 August 2018
Thermostat for use in Hazardous Locations
Feed-thru Models: XT-311 SPST, XT-312 SPDT
22 Amps Res., 480V AC Max.; 1/2 HP @ 125V AC, 1 HP @ 250V AC
Class I, Divisions 1 & 2, Groups C & D; Class II, Division 1, Groups E,
F & G; Class II, Division 2, Groups F & G; Class III; Class I, Zones 1 &
2, Groups IIA & IIB.
Step 1
Mount thermostat approximately 5' (1.5 m) above the floor where
average room temperature will be sensed and air circulates freely.
Keep thermostat away from hot and cold surfaces.
Step 2
Wire switch terminals as per Fig. 1 or 2.
Step 3
Install the cover using the 4 bolts supplied and tighten.
Step 4
Fill any unused conduit opening using plug supplied.
CAUTION
CAUTION.
Electrician must have experience with
Hazardous Location equipment. Disconnect and lock off
power supply before wiring or servicing. All wiring must
comply with local codes and ordinances.
Installation Instructions
Models:
Feed-thru Models
XT-311 SPST
XT-312 SPDT
HEAT
COOL
COM.
2
1
3
-
T
X
1
.
G
I
F
L1
L2
HEAT
COOL
COM.
COOLING EQUIPMENT
s
l
e
d
o
M
ll
A
2
.
G
I
F
11936.Rev.1.00
L1
L2
Thermostat for use in hazardous locations
Defender
®
22 Amps Res., 480 VAC Max.; 1/2 HP @ 125 VAC, 1 HP @ 250 VAC Class I, Divisions
1 & 2, Groups C & D; Class II, Division 1, Groups E, F & G; Class II, Division 2, Groups
F & G; Class III; Class I, Zones 1 & 2, Groups IIA & IIB.
CAUTION: Electrician must have experience with Hazardous Location equipment.
Disconnect and lock off power supply before wiring or servicing. All wiring must comply
with local codes and ordinances.
1. Mount thermostat
approximately 5’ (1.5m)
above the floor where
average room temperature
will be sensed and air
circulates freely. Keep
thermostat away from hot
and cold surfaces.
2. Wire switch terminals as per
Fig. 1 or 2.
3. Install the cover using the 4
bolts supplied and tighten
4. Fill any unused conduit
opening using plug supplied.
5918 Roper Road
Edmonton, Alberta
Canada T6B 3E1
www.ccithermal.com
1-800-661-8529
PH: 780-466-3178
FX: 780-468-5904
®
Revision Date: October 2011
Installation Instructions
Models:
Feed-thru Models
XT-311 SPST
XT-312 SPDT
HEAT
COOL
COM.
2
1
3
-
T
X
1
.
G
I
F
L1
L2
HEAT
COOL
COM.
COOLING EQUIPMENT
s
l
e
d
o
M
ll
A
2
.
G
I
F
11936.Rev.1.00
L1
L2
Thermostat for use in hazardous locations
Defender
®
22 Amps Res., 480 VAC Max.; 1/2 HP @ 125 VAC, 1 HP @ 250 VAC Class I, Divisions
1 & 2, Groups C & D; Class II, Division 1, Groups E, F & G; Class II, Division 2, Groups
F & G; Class III; Class I, Zones 1 & 2, Groups IIA & IIB.
CAUTION: Electrician must have experience with Hazardous Location equipment.
Disconnect and lock off power supply before wiring or servicing. All wiring must comply
with local codes and ordinances.
1. Mount thermostat
approximately 5’ (1.5m)
above the floor where
average room temperature
will be sensed and air
circulates freely. Keep
thermostat away from hot
and cold surfaces.
2. Wire switch terminals as per
Fig. 1 or 2.
3. Install the cover using the 4
bolts supplied and tighten
4. Fill any unused conduit
opening using plug supplied.
5918 Roper Road
Edmonton, Alberta
Canada T6B 3E1
www.ccithermal.com
1-800-661-8529
PH: 780-466-3178
FX: 780-468-5904
®
Revision Date: October 2011
5918 Roper Road
Edmonton, AB T6B 3E1
1.800.661.8529
www.ruffneck.com
