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AMC-2B-2
Double pole line-sensing thermostat for nonhazarDous locations
installation instructions
THERMAL MANAGEMENT SOLUTIONS
EN-DigiTraceAMC2B2-IM-H56910 01/13
DEScRIpTION
The DigiTrace AMC-2B-2 thermostat is designed for controlling
heat-tracing systems in nonhazardous locations. The thermostat
functions as a DPST switch.
The DPST switch will enable and disable current flow in both
buses of the heat- tracing cable.
The AMC-2B-2 can be used to control heat- tracing circuits in a
pipe-sensing mode directly (see Figure 1 on back).
Note: Do not use this thermostat to control two separate heat-
tracing circuits.
ADDITIONAL MATERIAL REqUIRED
• AT-180 aluminum tape
AppROvALS
SpEcIfIcATIONS
Enclosure
NEMA 4X, polyurethane-coated cast-
aluminum housing, stainless-steel hardware
Entries
One 3/4 in. NPT conduit hub
Set point range
25°F to 325°F (–4°C to 163°C)
Sensor exposure
limits
–40°F to 420°F (–40°C to 215°C)
Housing exposure
limits
–40°F to 160°F (–40°C to 71°C)
Switch
DPST
Electrical rating
22 A at 208/240 Vac
Relay coil
208–240 Vac, 4 VA
Accuracy
±6°F (±3.3°C)
Deadband
2°F to 12°F (1.1°C to 6.7°C) above actuation
temperature
Set point
repeatability
±3°F (±1.7°C)
Sensor type
Fluid-filled (silicone) bulb and 9 ft (2.7 m)
capillary
Sensor material
300 series stainless steel
Connection
terminals
Screw terminals, 10–14 AWG (2–5 mm
2
)
This component is an electrical device. It must be installed
correctly to ensure proper operation and to prevent shock or
fire. Read these important warnings and carefully follow all the
installation instructions.
Component approvals and performance are based on the use of
specified parts only. Do not use substitute parts or vinyl electrical
tape to make connections.
WARNING:
3⁄4 in NPT conduit entry
6.0 in (152 mm)
0.3 in (9 mm)
0.8 in
(20 mm)
Terminal
block
Ø.28 in (7 mm)
mounting holes (2X)
1.2 in
(30 mm)
4.0 in
(102 mm)
4.5 in
(114 mm)
5.6 in
(142 mm)
4.5 in (114 mm)
4.0 in (102 mm)
8.0 in
(202 mm)
Adjusting
knob
Removable
knob cover