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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

PC20-F30C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 185 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 185 amp, Fan Cooled

SKU: PC20-F30C-0000

Stock confirmed at order — usually ships from stock

$2,285.36

PC20-F35A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 250 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 250 amp, Fan Cooled

SKU: PC20-F35A-0000

Stock confirmed at order — usually ships from stock

$3,204.89

PC20-F35B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 250 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 250 amp, Fan Cooled

SKU: PC20-F35B-0000

Stock confirmed at order — usually ships from stock

$3,204.89

PC20-F35C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 250 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 250 amp, Fan Cooled

SKU: PC20-F35C-0000

Stock confirmed at order — usually ships from stock

$3,204.89

PC20-N20A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 80 amp

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 80 amp

SKU: PC20-N20A-0000

Stock confirmed at order — usually ships from stock

$1,910.22

PC20-N20B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 80 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 80 amp

SKU: PC20-N20B-0000

Stock confirmed at order — usually ships from stock

$1,910.22

PC20-N20C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 80 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 80 amp

SKU: PC20-N20C-0000

Stock confirmed at order — usually ships from stock

$1,910.22

PC20-N25A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 105 amp

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 105 amp

SKU: PC20-N25A-0000

Stock confirmed at order — usually ships from stock

$2,116.11

PC20-N25B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 105 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 105 amp

SKU: PC20-N25B-0000

Stock confirmed at order — usually ships from stock

$2,116.11

PC20-N25C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 105 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 105 amp

SKU: PC20-N25C-0000

Stock confirmed at order — usually ships from stock

$2,116.11

PC20-N30A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 120 amp

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 120 amp

SKU: PC20-N30A-0000

Stock confirmed at order — usually ships from stock

$2,181.87

PC20-N30B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 120 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 120 amp

SKU: PC20-N30B-0000

Stock confirmed at order — usually ships from stock

$2,181.87

PC20-N30C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 120 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 120 amp

SKU: PC20-N30C-0000

Stock confirmed at order — usually ships from stock

$2,181.87

PC21-F20A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 120 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 120 amp, Fan Cooled

SKU: PC21-F20A-1100

Stock confirmed at order — usually ships from stock

$2,433.05

PC21-F20B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 120 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 120 amp, Fan Cooled

SKU: PC21-F20B-1100

Stock confirmed at order — usually ships from stock

$2,433.05

PC21-F20C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 120 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 120 amp, Fan Cooled

SKU: PC21-F20C-1100

Stock confirmed at order — usually ships from stock

$2,433.05

PC21-F25A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 160 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 160 amp, Fan Cooled

SKU: PC21-F25A-1100

Stock confirmed at order — usually ships from stock

$2,637.87

PC21-F25B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 160 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 160 amp, Fan Cooled

SKU: PC21-F25B-1100

Stock confirmed at order — usually ships from stock

$2,637.87

PC21-F25C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 160 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 160 amp, Fan Cooled

SKU: PC21-F25C-1100

Stock confirmed at order — usually ships from stock

$2,637.87

PC21-F30A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 185 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 185 amp, Fan Cooled

SKU: PC21-F30A-1100

Stock confirmed at order — usually ships from stock

$2,705.78

PC21-F30B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 185 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 185 amp, Fan Cooled

SKU: PC21-F30B-1100

Stock confirmed at order — usually ships from stock

$2,705.78

PC21-F30C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 185 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 185 amp, Fan Cooled

SKU: PC21-F30C-1100

Stock confirmed at order — usually ships from stock

$2,705.78

PC21-F35A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 250 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 250 amp, Fan Cooled

SKU: PC21-F35A-1100

Stock confirmed at order — usually ships from stock

$3,625.31

PC21-F35B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 250 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 250 amp, Fan Cooled

SKU: PC21-F35B-1100

Stock confirmed at order — usually ships from stock

$3,625.31

PC21-F35C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 250 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 250 amp, Fan Cooled

SKU: PC21-F35C-1100

Stock confirmed at order — usually ships from stock

$3,625.31

PC21-N20A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 80 amp

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 80 amp

SKU: PC21-N20A-1100

Stock confirmed at order — usually ships from stock

$2,330.64

PC21-N20B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 80 amp

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 80 amp

SKU: PC21-N20B-1100

Stock confirmed at order — usually ships from stock

$2,330.64

PC21-N20C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 80 amp

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 80 amp

SKU: PC21-N20C-1100

Stock confirmed at order — usually ships from stock

$2,330.64

PC21-N25A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 105 amp

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 105 amp

SKU: PC21-N25A-1100

Stock confirmed at order — usually ships from stock

$2,536.53

PC21-N25B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 105 amp

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 105 amp

SKU: PC21-N25B-1100

Stock confirmed at order — usually ships from stock

$2,536.53

PC21-N25C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 105 amp

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 105 amp

SKU: PC21-N25C-1100

Stock confirmed at order — usually ships from stock

$2,536.53

PC21-N30A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 120 amp

Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 120 amp

SKU: PC21-N30A-1100

Stock confirmed at order — usually ships from stock

$2,602.29

PC21-N30B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 120 amp

Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 120 amp

SKU: PC21-N30B-1100

Stock confirmed at order — usually ships from stock

$2,602.29

PC21-N30C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 120 amp

Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 120 amp

SKU: PC21-N30C-1100

Stock confirmed at order — usually ships from stock

$2,602.29

PC30-F20A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 90 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 90 amp, Fan Cooled

SKU: PC30-F20A-0000

Stock confirmed at order — usually ships from stock

$2,285.36

PC30-F20B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 90 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 90 amp, Fan Cooled

SKU: PC30-F20B-0000

Stock confirmed at order — usually ships from stock

$2,285.36

PC30-F20C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 90 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 90 amp, Fan Cooled

SKU: PC30-F20C-0000

Stock confirmed at order — usually ships from stock

$2,285.36

PC30-F25A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 140 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 140 amp, Fan Cooled

SKU: PC30-F25A-0000

Stock confirmed at order — usually ships from stock

$2,624.93

PC30-F25B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 140 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 140 amp, Fan Cooled

SKU: PC30-F25B-0000

Stock confirmed at order — usually ships from stock

$2,624.93

PC30-F25C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 140 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 140 amp, Fan Cooled

SKU: PC30-F25C-0000

Stock confirmed at order — usually ships from stock

$2,624.93

PC30-F30A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 155 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 155 amp, Fan Cooled

SKU: PC30-F30A-0000

Stock confirmed at order — usually ships from stock

$2,693.92

PC30-F30B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 155 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 155 amp, Fan Cooled

SKU: PC30-F30B-0000

Stock confirmed at order — usually ships from stock

$2,693.92

PC30-F30C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 155 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 155 amp, Fan Cooled

SKU: PC30-F30C-0000

Stock confirmed at order — usually ships from stock

$2,693.92

PC30-F35A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 225 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 225 amp, Fan Cooled

SKU: PC30-F35A-0000

Stock confirmed at order — usually ships from stock

$3,646.87

PC30-F35B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 225 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 225 amp, Fan Cooled

SKU: PC30-F35B-0000

Stock confirmed at order — usually ships from stock

$3,646.87

PC30-F35C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 225 amp, Fan Cooled

Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 225 amp, Fan Cooled

SKU: PC30-F35C-0000

Stock confirmed at order — usually ships from stock

$3,646.87

PC30-N20A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 65 amp

Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 65 amp

SKU: PC30-N20A-0000

Stock confirmed at order — usually ships from stock

$2,181.87

PC30-N20B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 65 amp

Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 65 amp

SKU: PC30-N20B-0000

Stock confirmed at order — usually ships from stock

$2,181.87

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.