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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.

831 products · showing 817–831
PM9C1KH-ALEJAAA — Watlow 1/8 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM9C1KH-ALEJAAA
Stock confirmed at order — usually ships from stock
$564.28
PM9C1KK-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Digital PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

SKU: PM9C1KK-AAAAAAA
Stock confirmed at order — usually ships from stock
$361.08
PM9C1KK-ALEJAAA — Watlow 1/8 DIN, Digital PID Controller and Limit, 2 SSR Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Digital PID Controller and Limit, 2 SSR Outputs, Universal Input, 100-240 VAC

SKU: PM9C1KK-ALEJAAA
Stock confirmed at order — usually ships from stock
$548.65
PM9R1EJ-AAAAAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC

SKU: PM9R1EJ-AAAAAAA
Stock confirmed at order — usually ships from stock
$600.23
PM9R1EJ-AAEJAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC

SKU: PM9R1EJ-AAEJAAA
Stock confirmed at order — usually ships from stock
$694.01
PM9R1FA-AAAAAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC

SKU: PM9R1FA-AAAAAAA
Stock confirmed at order — usually ships from stock
$462.68
PM9R1FK-AAEJAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM9R1FK-AAEJAAA
Stock confirmed at order — usually ships from stock
$595.54
PM9R1KK-AAAAAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

SKU: PM9R1KK-AAAAAAA
Stock confirmed at order — usually ships from stock
$478.31
PM9R1KK-AAEJAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM9R1KK-AAEJAAA
Stock confirmed at order — usually ships from stock
$572.10
STCL-B1AB-AAAA — Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/10amp) 2 Universal Inputs, 24 VAC
Watlow

Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/10amp) 2 Universal Inputs, 24 VAC

SKU: STCL-B1AB-AAAA
Stock confirmed at order — usually ships from stock
$867.63
STCL-B2AB-AAAA — Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/10amp), 2 Universal Inputs, 110/120 VAC
Watlow

Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/10amp), 2 Universal Inputs, 110/120 VAC

SKU: STCL-B2AB-AAAA
Stock confirmed at order — usually ships from stock
$811.07
STCL-B3AB-AAAA — Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/10amp), 2 Universal Inputs, 208/240 VAC
Watlow

Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/10amp), 2 Universal Inputs, 208/240 VAC

SKU: STCL-B3AB-AAAA
Stock confirmed at order — usually ships from stock
$811.07
STCL-F1AC-AAAA — Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/25amp) 2 Universal Inputs, 24 VAC
Watlow

Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/25amp) 2 Universal Inputs, 24 VAC

SKU: STCL-F1AC-AAAA
Stock confirmed at order — usually ships from stock
$875.70
STCL-F2AC-AAAA — Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/25amp), 2 Universal Inputs, 110/120 VAC
Watlow

Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/25amp), 2 Universal Inputs, 110/120 VAC

SKU: STCL-F2AC-AAAA
Stock confirmed at order — usually ships from stock
$819.15
STCL-F3AC-AAAA — Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/25amp), 2 Universal Inputs, 208/240 VAC
Watlow

Watlow ST, LIMIT AND PID Controller, 4 Outputs (40amp/25amp), 2 Universal Inputs, 208/240 VAC

SKU: STCL-F3AC-AAAA
Stock confirmed at order — usually ships from stock
$819.15
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.