HEAT TRACE CONTROLS COMPARISON TABLE

	TM-I	TM-II	MasterTrace		OTS-F1	OTS-1A	OTS-2A	OTS-3A	OTS-4A	A419ABC-1	A419AEC-2C	A19ABC-24	A19ANC-1C	E55A-E21BS
Monitor Features:	yes1	yes1	yes		no	no	no	no	no	no	no	no	no	no
Monitor Light:	yes	no	no		no	no	no	no	no	no	no	no	no	no
Display:	no	digital	digital		no	no	no	no	no	digital	digital	no	no	no
Approval:	CSA FM	CSA	CSA		UL	UL CSA	UL CSA	UL CSA	UL CSA	UL	UL	UL	UL CSA	UL CSA
Ambient Sensing:	no	no	no		yes	no	yes	no	yes	yes	yes	no	no	no
Line Sensing:	yes	yes	yes		yes	yes	no	yes	no	yes	yes	yes	yes	yes
Nema Enclosure:	4X	4X	4 or 4X		4X	4X	4X	4, 7, 9	4, 7, 9	1	4X	1	3	4
Switch:	SP & DP	SP	SP or DP		SPST	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	2-SPDT
Diff. Range:	1°F	1°F	1°F		5°F	10°F	10°F	10°F	10°F	1-30°F	1-30°F	3-12°F	5°F	1.5°F
Amp/Input Voltages:	30A/120- 277	30A/120	30A/120 - 277		22A/120- 277	22A/120- 480	22A/120- 480	22A/120- 480	22A/120- 480	16A/120, 9.2/ 208 8A/240	16A/120, 9.2/ 208 8A/240	22A/120- 277	22A/120- 277	15A/120- 480
Enclosure Exp. Limits:	200°F	200°F	200°F		190°F	-40-160°F	-40-160°F	-40-160°F	-40-160°F	-30-140°F	-30-140°F	NA	190°F	160°F
Set Point Range:	0-511°F	0-511°F	32-572°F		40°F	25-325°F	15-140°F	25-325°F	15-140°F	-30-212°F	-30-212°F	-30-100°F	0-150°F	0-150°F
Sensor Type:	RTD	RTD	RTD		bulb & capillary	10' SS capillary	bulb in local mount	10' SS capillary	bulb in local mount	thermistor	thermistor	8' capillary	bulb & capillary	bulb & capillary