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Temperature & Process Controllers

PID and limit controllers, process controllers, and SCR power controllers for precise heat and process control.

Anderson-Bolds supplies temperature and process controllers from Watlow, Fenwal, and Novus — PID process controllers, FM-approved limit controllers, and SCR power controllers. We can pair a controller with the matching Watlow heater and sensor so the loop is sized and tuned together.

All Temperature & Process Controllers PID / Process Limit / Safety Power (SCR) Controllers

DC22-48S2-0000 — Watlow DIN-A-Mite C SCR, 2 Legs, 0-20mA Input, 480 VAC 65 Amp

Watlow

Watlow DIN-A-Mite C SCR, 2 Legs, 0-20mA Input, 480 VAC 65 Amp

SKU: DC22-48S2-0000

Stock confirmed at order — usually ships from stock

$843.43

DC22-48S2-H000 — Watlow DIN-A-Mite C 65 Amp SCR with SCR Alarm, 2 Legs, 0-20mA Input, 480 VAC

Watlow

Watlow DIN-A-Mite C 65 Amp SCR with SCR Alarm, 2 Legs, 0-20mA Input, 480 VAC

SKU: DC22-48S2-H000

Stock confirmed at order — usually ships from stock

$1,064.21

DC22-48S5-0000 — Watlow DIN-A-Mite C SCR, 2 Legs, 0-10 vdc Input, 480 VAC 65 Amp

Watlow

Watlow DIN-A-Mite C SCR, 2 Legs, 0-10 vdc Input, 480 VAC 65 Amp

SKU: DC22-48S5-0000

Stock confirmed at order — usually ships from stock

$843.43

DC22-48S5-H000 — Watlow DIN-A-Mite C 65 Amp SCR with SCR Alarm, 2 Legs, 0-10 vdc Input, 480 VAC

Watlow

Watlow DIN-A-Mite C 65 Amp SCR with SCR Alarm, 2 Legs, 0-10 vdc Input, 480 VAC

SKU: DC22-48S5-H000

Stock confirmed at order — usually ships from stock

$1,064.21

DC22-60F0-0000 — Watlow DIN-A-Mite C SCR, 2 Legs, 4-20mA Input, 277-600 VAC, 75 Amp

Watlow

Watlow DIN-A-Mite C SCR, 2 Legs, 4-20mA Input, 277-600 VAC, 75 Amp

SKU: DC22-60F0-0000

Stock confirmed at order — usually ships from stock

$638.18

DC22-60F0-S000 — Watlow DIN-A-Mite C SCR, 2 Legs, 4-20mA Input, 277-600 VAC, 75 Amp and SCR Alarm

Watlow

Watlow DIN-A-Mite C SCR, 2 Legs, 4-20mA Input, 277-600 VAC, 75 Amp and SCR Alarm

SKU: DC22-60F0-S000

Stock confirmed at order — usually ships from stock

$733.04

DC30-24F0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 amp

SKU: DC30-24F0-0000

Stock confirmed at order — usually ships from stock

$665.78

DC30-24F0-S000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 Amp and SCR Alarm

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 Amp and SCR Alarm

SKU: DC30-24F0-S000

Stock confirmed at order — usually ships from stock

$760.64

DC30-24P0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC, Phase Angle, 30 Amps

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC, Phase Angle, 30 Amps

SKU: DC30-24P0-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-24P2-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 230-240 VAC, Phase Angle, 30 Amps

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 230-240 VAC, Phase Angle, 30 Amps

SKU: DC30-24P2-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-24P5-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 230-240 VAC, Phase Angle, 30 Amps

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 230-240 VAC, Phase Angle, 30 Amps

SKU: DC30-24P5-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-24S0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC 30 Ampss

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC 30 Ampss

SKU: DC30-24S0-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-24S0-H000 — Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 230-240 VAC,

Watlow

Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 230-240 VAC,

SKU: DC30-24S0-H000

Stock confirmed at order — usually ships from stock

$1,178.03

DC30-24S2-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 230-240 VAC 30 Ampss

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 230-240 VAC 30 Ampss

SKU: DC30-24S2-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-24S2-H000 — Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 230-240 VAC,

Watlow

Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 230-240 VAC,

SKU: DC30-24S2-H000

Stock confirmed at order — usually ships from stock

$1,178.03

DC30-24S5-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 230-240 VAC 30 Ampss

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 230-240 VAC 30 Ampss

SKU: DC30-24S5-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-24S5-H000 — Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 230-240 VAC,

Watlow

Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 230-240 VAC,

SKU: DC30-24S5-H000

Stock confirmed at order — usually ships from stock

$1,178.03

DC30-48P0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 480 VAC, Phase Angle, 30 Amps

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 480 VAC, Phase Angle, 30 Amps

SKU: DC30-48P0-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-48P2-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 480 VAC, Phase Angle, 30 Amps

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 480 VAC, Phase Angle, 30 Amps

SKU: DC30-48P2-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-48P5-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 480 VAC, Phase Angle, 30 Amps

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 480 VAC, Phase Angle, 30 Amps

SKU: DC30-48P5-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-48S0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 480 VAC 30 Ampss

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 480 VAC 30 Ampss

SKU: DC30-48S0-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-48S0-H000 — Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 480 VAC,

Watlow

Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 480 VAC,

SKU: DC30-48S0-H000

Stock confirmed at order — usually ships from stock

$1,178.03

DC30-48S2-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 480 VAC 30 Ampss

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 480 VAC 30 Ampss

SKU: DC30-48S2-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-48S2-H000 — Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 480 VAC,

Watlow

Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 480 VAC,

SKU: DC30-48S2-H000

Stock confirmed at order — usually ships from stock

$1,178.03

DC30-48S5-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 480 VAC 30 Ampss

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 480 VAC 30 Ampss

SKU: DC30-48S5-0000

Stock confirmed at order — usually ships from stock

$871.02

DC30-48S5-H000 — Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 480 VAC,

Watlow

Watlow DIN-A-Mite C 30 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 480 VAC,

SKU: DC30-48S5-H000

Stock confirmed at order — usually ships from stock

$1,178.03

DC30-60F0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 amp

SKU: DC30-60F0-0000

Stock confirmed at order — usually ships from stock

$665.78

DC30-60F0-S000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 Amp and SCR Alarm

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 50 Amp and SCR Alarm

SKU: DC30-60F0-S000

Stock confirmed at order — usually ships from stock

$760.64

DC31-24F0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp

SKU: DC31-24F0-0000

Stock confirmed at order — usually ships from stock

$764.08

DC31-24F0-S000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp and SCR Alarm

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp and SCR Alarm

SKU: DC31-24F0-S000

Stock confirmed at order — usually ships from stock

$858.95

DC31-24S0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC 55 Amp

SKU: DC31-24S0-0000

Stock confirmed at order — usually ships from stock

$969.34

DC31-24S0-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 230-240 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 230-240 VAC

SKU: DC31-24S0-H000

Stock confirmed at order — usually ships from stock

$1,276.35

DC31-24S2-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 230-240 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 230-240 VAC 55 Amp

SKU: DC31-24S2-0000

Stock confirmed at order — usually ships from stock

$969.34

DC31-24S2-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 230-240 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 230-240 VAC

SKU: DC31-24S2-H000

Stock confirmed at order — usually ships from stock

$1,276.35

DC31-24S5-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 230-240 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 230-240 VAC 55 Amp

SKU: DC31-24S5-0000

Stock confirmed at order — usually ships from stock

$969.34

DC31-24S5-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 230-240 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 230-240 VAC

SKU: DC31-24S5-H000

Stock confirmed at order — usually ships from stock

$1,276.35

DC31-48S0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 480 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 480 VAC 55 Amp

SKU: DC31-48S0-0000

Stock confirmed at order — usually ships from stock

$969.34

DC31-48S0-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 480 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 480 VAC

SKU: DC31-48S0-H000

Stock confirmed at order — usually ships from stock

$1,276.35

DC31-48S2-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 480 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-20mA Input, 480 VAC 55 Amp

SKU: DC31-48S2-0000

Stock confirmed at order — usually ships from stock

$969.34

DC31-48S2-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 480 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-20mA Input, 480 VAC

SKU: DC31-48S2-H000

Stock confirmed at order — usually ships from stock

$1,276.35

DC31-48S5-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 480 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 0-10 vdc Input, 480 VAC 55 Amp

SKU: DC31-48S5-0000

Stock confirmed at order — usually ships from stock

$969.34

DC31-48S5-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 480 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 0-10 vdc Input, 480 VAC

SKU: DC31-48S5-H000

Stock confirmed at order — usually ships from stock

$1,276.35

DC31-60F0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 277-600 VAC, 75 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 277-600 VAC, 75 Amp

SKU: DC31-60F0-0000

Stock confirmed at order — usually ships from stock

$764.08

DC31-60F0-S000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 277-600 VAC, 75 Amp and SCR Alarm

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 277-600 VAC, 75 Amp and SCR Alarm

SKU: DC31-60F0-S000

Stock confirmed at order — usually ships from stock

$858.95

DC32-24F0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp

SKU: DC32-24F0-0000

Stock confirmed at order — usually ships from stock

$764.08

DC32-24F0-S000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp and SCR Alarm

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 100-240 VAC, 75 Amp and SCR Alarm

SKU: DC32-24F0-S000

Stock confirmed at order — usually ships from stock

$858.95

DC32-24S0-0000 — Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC 55 Amp

Watlow

Watlow DIN-A-Mite C SCR, 3 Legs, 4-20mA Input, 230-240 VAC 55 Amp

SKU: DC32-24S0-0000

Stock confirmed at order — usually ships from stock

$969.34

DC32-24S0-H000 — Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 230-240 VAC

Watlow

Watlow DIN-A-Mite C 55 Amps SCR with SCR Alarm, 3 Legs, 4-20mA Input, 230-240 VAC

SKU: DC32-24S0-H000

Stock confirmed at order — usually ships from stock

$1,276.35

Authorized lines

Brands in Temperature & Process Controllers

Temperature & Process Controllers — questions buyers ask

Do I need a separate limit controller?

For most heating systems, yes — a redundant high-limit controller with its own sensor protects against runaway if the primary control loop fails, and it's often required by code or insurers.