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Industrial Electrical & Process Components
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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.

412 products · showing 385–412
PC30-N20C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 65 amp
Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 65 amp

SKU: PC30-N20C-0000
Stock confirmed at order — usually ships from stock
$2,181.87
PC30-N25A-0000 — Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 85 amp
Watlow

Watlow Power Series SCR, 3-Phase, 24-120 Output VAC, 85 amp

SKU: PC30-N25A-0000
Stock confirmed at order — usually ships from stock
$2,524.68
PC30-N25B-0000 — Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 85 amp
Watlow

Watlow Power Series SCR, 3-Phase, 200-480 Output VAC, 85 amp

SKU: PC30-N25B-0000
Stock confirmed at order — usually ships from stock
$2,524.68
PC30-N25C-0000 — Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 85 amp
Watlow

Watlow Power Series SCR, 3-Phase, 200-600 Output VAC, 85 amp

SKU: PC30-N25C-0000
Stock confirmed at order — usually ships from stock
$2,524.68
PC30-N30A-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: PC30-N30A-0000
Stock confirmed at order — usually ships from stock
$2,592.59
PC30-N30B-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: PC30-N30B-0000
Stock confirmed at order — usually ships from stock
$2,592.59
PC30-N30C-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: PC30-N30C-0000
Stock confirmed at order — usually ships from stock
$2,592.59
PC31-F20A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 90 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 90 amp, Fan Cooled

SKU: PC31-F20A-1100
Stock confirmed at order — usually ships from stock
$2,797.41
PC31-F20B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 90 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 90 amp, Fan Cooled

SKU: PC31-F20B-1100
Stock confirmed at order — usually ships from stock
$2,797.41
PC31-F20C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 90 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 90 amp, Fan Cooled

SKU: PC31-F20C-1100
Stock confirmed at order — usually ships from stock
$2,797.41
PC31-F25A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 140 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 140 amp, Fan Cooled

SKU: PC31-F25A-1100
Stock confirmed at order — usually ships from stock
$3,136.98
PC31-F25B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 140 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 140 amp, Fan Cooled

SKU: PC31-F25B-1100
Stock confirmed at order — usually ships from stock
$3,136.98
PC31-F25C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 140 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 140 amp, Fan Cooled

SKU: PC31-F25C-1100
Stock confirmed at order — usually ships from stock
$3,136.98
PC31-F30A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 155 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 155 amp, Fan Cooled

SKU: PC31-F30A-1100
Stock confirmed at order — usually ships from stock
$3,205.97
PC31-F30B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 155 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 155 amp, Fan Cooled

SKU: PC31-F30B-1100
Stock confirmed at order — usually ships from stock
$3,205.97
PC31-F30C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 155 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 155 amp, Fan Cooled

SKU: PC31-F30C-1100
Stock confirmed at order — usually ships from stock
$3,205.97
PC31-F35A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 225 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 225 amp, Fan Cooled

SKU: PC31-F35A-1100
Stock confirmed at order — usually ships from stock
$4,158.92
PC31-F35B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 225 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 225 amp, Fan Cooled

SKU: PC31-F35B-1100
Stock confirmed at order — usually ships from stock
$4,158.92
PC31-F35C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 225 amp, Fan Cooled
Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 225 amp, Fan Cooled

SKU: PC31-F35C-1100
Stock confirmed at order — usually ships from stock
$4,158.92
PC31-N20A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 65 amp
Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 65 amp

SKU: PC31-N20A-1100
Stock confirmed at order — usually ships from stock
$2,693.92
PC31-N20B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 65 amp
Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 65 amp

SKU: PC31-N20B-1100
Stock confirmed at order — usually ships from stock
$2,693.92
PC31-N20C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 65 amp
Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 65 amp

SKU: PC31-N20C-1100
Stock confirmed at order — usually ships from stock
$2,693.92
PC31-N25A-1100 — Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 85 amp
Watlow

Watlow Power Series SCR, 3PH, 24-120 Output VAC, Communications/Diagnostics, 85 amp

SKU: PC31-N25A-1100
Stock confirmed at order — usually ships from stock
$3,036.73
PC31-N25B-1100 — Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 85 amp
Watlow

Watlow Power Series SCR, 3PH, 200-480 Output VAC, Communications/Diagnostics, 85 amp

SKU: PC31-N25B-1100
Stock confirmed at order — usually ships from stock
$3,036.73
PC31-N25C-1100 — Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 85 amp
Watlow

Watlow Power Series SCR, 3PH, 200-600 Output VAC, Communications/Diagnostics, 85 amp

SKU: PC31-N25C-1100
Stock confirmed at order — usually ships from stock
$3,036.73
PC31-N30A-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: PC31-N30A-1100
Stock confirmed at order — usually ships from stock
$3,104.64
PC31-N30B-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: PC31-N30B-1100
Stock confirmed at order — usually ships from stock
$3,104.64
PC31-N30C-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: PC31-N30C-1100
Stock confirmed at order — usually ships from stock
$3,104.64
Authorized lines

Brands in Temperature & Process Controllers

Watlow logo — Anderson-Bolds is an authorized Watlow stocking distributor and manufacturer's representativeFenwal logo — Anderson-Bolds is an authorized Fenwal manufacturer's representativeBudzar logo — Anderson-Bolds is an authorized Budzar manufacturer's representativeNovus logo — Anderson-Bolds is an authorized Novus manufacturer's representative

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.