Current Sensors & Switches

Current Sensors & Switches monitor electrical flow to protect equipment and ensure safe operation in HVAC and electrical systems. These devices detect current levels and automatically switch circuits on or off when preset thresholds are reached. Jackson Systems stocks AC and DC current sensors in multiple amperage ranges – shop our complete selection today.

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Showing 1–48 of 451 resultsSorted by popularity

Suction Transducer Kit with ±1.5% Accuracy & Mounting Bracket

Copeland

SKU: 929-0114-00
$206.78
MSRP: $237.80
You save 15%
Copeland 929-0114-00 Suction Transducer Kit quantity
Electropneumatic Transducer

Veris

SKU: EP3031S
$275.08
MSRP: $316.34
You save 15%
Veris EP3031S Electropneumatic Transducer quantity
Current Transducer

Veris

SKU: H-922
$81.05
MSRP: $93.21
You save 15%
Read more
0–2.5″ WC Unidirectional Low Differential Pressure Transducer

Setra

SKU: 26512R5WDACT1C
$197.54
MSRP: $227.17
You save 13%
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±0.1″WC Bidirectional Low Differential Pressure Transducer

Setra

SKU: 26510R1WB11T1C
$197.54
MSRP: $227.17
You save 15%
Read more
0–1″ WC Unidirectional Low Differential Pressure Transducer

Setra

SKU: 2651001WD11T1C
$197.54
MSRP: $227.17
You save 15%
Setra 2651001WD11T1C 0–1" WC Unidirectional Low Differential Pressure Transducer quantity
±1″ WC Bidirectional Low Differential Pressure Transducer

Setra

SKU: 2641001WB11T1C
$224.73
MSRP: $258.44
You save 13%
Setra 2641001WB11T1C ±1" WC Bidirectional Low Differential Pressure Transducer quantity
0-1 PSI Gauge Pressure Transducer, 1/8″ NPT Male, 0.5-4.5 VDC

Setra

SKU: 2091001PG1M45P1
$266.29
MSRP: $306.23
You save 15%
Setra 2091001PG1M45P1 0-1 PSI Gauge Pressure Transducer, 1/8" NPT, 0.5-4.5V quantity
Outside Air Humidity & Temperature Transducer, 3% Accuracy

MAMAC

SKU: HU-227-3-VDC-8
$127.05
MSRP: $146.11
You save 15%
MAMAC Systems HU-227-3-VDC-8 Outside Air Humidity & Temperature Transducer quantity
-10 to 100 PSI 1/4″ Pressure Transducer

Johnson Controls

SKU: P499RCPS100K
$240.73
MSRP: $276.84
You save 15%
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Suction Pressure Transducer

Carrier

SKU: HK05SZ003
$162.81
MSRP: $187.23
You save 15%
Carrier HK05SZ003 Suction Pressure Transducer quantity
Pressure Transducer for Trane HVAC Systems

Trane

SKU: BAYLOTR001AA
$210.60
MSRP: $277.38
You save 24%
Trane BAYLOTR001AA Pressure Transducer quantity
Pressure Transducer +0.15 to -0.60 in. W.C. with Enclosure

Tjernlund Products

SKU: TD2
$844.64
MSRP: $971.34
You save 15%
Tjernlund Products TD2 Pressure Transducer +0.15 to -0.60 in. W.C. with Enclosure quantity
Transducer Cable for Trane HVAC Systems

Trane

SKU: CAB02048
$211.48
MSRP: $243.20
You save 15%
Trane CAB02048 Transducer Cable quantity
Pressure Transducer EMI Kit for Trane HVAC Systems

Trane

SKU: KIT16724
$25.49
MSRP: $29.31
You save 15%
Trane KIT16724 Pressure Transducer EMI Kit quantity
Liquid Level Transducer Sensor for Trane Systems

Trane

SKU: SEN01315
$1,220.15
MSRP: $1,403.17
You save 15%
Trane SEN01315 Liquid Level Transducer Sensor quantity
2/135A Current Sensing Relay

Trane

SKU: RLY1678
$177.13
MSRP: $271.63
You save 35%
Trane RLY1678 2/135A Current Sensing Relay quantity
Current Transformer for Trane HVAC Systems

Trane

SKU: TRR0715
$76.33
MSRP: $87.78
You save 15%
Trane TRR0715 Current Transformer quantity
Low Pressure Transducer, 2-10VDC Output, 0-20″ w.c. Range

Trane

SKU: TDR0744
$568.03
MSRP: $653.23
You save 15%
Trane TDR0744 Low Pressure Transducer 2-10VDC / 0-20" w.c. quantity
475 PSI Pressure Transducer for Trane HVAC Systems

Trane

SKU: TDR0735
$317.40
MSRP: $365.01
You save 15%
Trane TDR0735 475# Pressure Transducer quantity
Pressure Transducer, 0-70 PSIA Range

Trane

SKU: TDR0733
$402.05
MSRP: $462.36
You save 15%
Trane TDR0733 Pressure Transducer 0-70 PSIA quantity
0.5 VDC @ 14.7 PSI Pressure Transducer

Trane

SKU: TDR0645
$172.56
MSRP: $198.44
You save 15%
Trane TDR0645 0.5 VDC @ 14.7 PSI Pressure Transducer quantity
3-Pin Liquid Line Pressure Transducer, OEM Replacement

Trane

SKU: TDR0364
$121.33
MSRP: $139.53
You save 15%
Trane TDR0364 3-Pin Liquid Line Pressure Transducer quantity
Pressure Transducer for Trane HVAC Systems

Trane

SKU: TDR00758
$126.65
MSRP: $145.65
You save 15%
Trane TDR00758 Pressure Transducer quantity
1/4″ NPT External x Internal Pressure Transducer

Trane

SKU: VAL7095
$158.35
MSRP: $182.10
You save 15%
Trane VAL7095 1/4" NPTEx NPTi Pressure Transducer quantity
+/- 2.5″ W.C. 24VDC 4-20mA Differential Pressure Switch

Utica-Dunkirk

SKU: 1500005
$224.18
MSRP: $257.81
You save 15%
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Current & Voltage Data Logger

Supco

SKU: LCV
$286.49
MSRP: $329.46
You save 15%
Supco LCV Current & Voltage Data Logger quantity
Pressure Transmitter, OsiSense XM Series

Schneider Electric

SKU: XMLP300PD230
$228.98
MSRP: $263.33
You save 15%
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PSPT0150AVSP-SD Pressure Transducer, 0–150 PSI Range

Sporlan Controls

SKU: 993291
$304.93
MSRP: $350.67
You save 15%
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0-652 PSI Pressure Transducer, PSPT0652SVSP-S

Sporlan Controls

SKU: 992579
$304.93
MSRP: $350.67
You save 15%
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Pressure Transducer, 0-500 PSI, R-744 (CO2) Refrigerant

Sporlan Controls

SKU: 992576
$304.93
MSRP: $350.67
You save 15%
Sporlan Controls 992576 Pressure Transducer, 0-500 PSI, R-744 quantity
0-300 PSI Pressure Transducer for HVAC & Refrigeration

Sporlan Controls

SKU: 992574
$304.93
MSRP: $350.67
You save 15%
Sporlan Controls 992574 0-300 PSI Pressure Transducer quantity
150 PSI Pressure Transducer for HVAC Refrigeration Systems

Sporlan Controls

SKU: 992572
$304.93
MSRP: $350.67
You save 15%
Sporlan Controls 992572 150 PSI Pressure Transducer quantity
5 Meter Transducer Cable for Sporlan Control Systems

Sporlan Controls

SKU: 953100
$126.35
MSRP: $145.30
You save 15%
Sporlan Controls 953100 5 Meter Transducer Cable quantity
0-232 PSI 4-20mA Pressure Transducer

Sporlan Controls

SKU: 930001
$2,992.41
MSRP: $3,441.27
You save 15%
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Current Sensor, 0.75–150 Amp Range

Sporlan Controls

SKU: 401614
$98.19
MSRP: $112.92
You save 15%
Sporlan Controls 401614 Current Sensor 0.75-150 Amp quantity
±0.10″ WC Room Condition Monitor, BACnet, 4-20 mA/0-10 VDC

Setra

SKU: SRCM0R1WBA2F2S
$3,107.66
MSRP: $3,573.81
You save 15%
Setra SRCM0R1WBA2F2S ±0.10" WC Room Condition Monitor w/ BACnet quantity
Multi-Range Uni/Bidirectional Pressure Transducer

Setra

SKU: MRGUA
$298.86
MSRP: $343.69
You save 15%
Read more
Multi-Range Gauge/Differential Pressure Transducer

Setra

SKU: MRGSA
$253.09
MSRP: $291.05
You save 15%
Setra MRGSA Multi-Range Gauge/Differential Pressure Transducer quantity
Multi-Range Gauge & Differential Pressure Transducer

Setra

SKU: MRGPP
$280.21
MSRP: $322.24
You save 15%
Setra MRGPP Multi-Range Gauge & Differential Pressure Transducer quantity
1″WC–10″WC Differential Pressure Transducer

Setra

SKU: MR2SA
$253.09
MSRP: $291.05
You save 15%
Setra MR2SA 1"WC-10"WC Differential Pressure Transducer quantity
Differential Pressure Transducer with Probe & Display

Setra

SKU: MR2PA
$280.21
MSRP: $322.24
You save 15%
Setra MR2PA Differential Pressure Transducer with Probe & Display quantity
0.1″WC–1.0″WC Differential Pressure Transducer

Setra

SKU: MR1SA
$253.09
MSRP: $291.05
You save 15%
Read more
Model CSC Adjustable Setpoint Current Switch with LED, 1.25 A

Setra

SKU: CSCG-A-2-125-NN
$82.68
MSRP: $95.08
You save 15%
Setra CSCG-A-2-125-NN Model CSC Adjustable Setpoint Current Switch with LED, 1.25 A quantity
AXD Final Assembly Pressure Transducer, 0-2 PSI Range

Setra

SKU: AXD1002PG2M24M4FNN
$329.14
MSRP: $378.51
You save 15%
Setra AXD1002PG2M24M4FNN AXD Final Assembly Pressure Transducer 0-2 PSI quantity
±0.25″ WC Bidirectional Low Differential Pressure Transducer

Setra

SKU: 2651R25WBABT1C
$197.55
MSRP: $227.18
You save 15%
Setra 2651R25WBABT1C ±0.25" WC Bidirectional Low Differential Pressure Transducer quantity
0–0.5″ WC Unidirectional Low Differential Pressure Transducer

Setra

SKU: 26510R5WD2BT1C
$197.55
MSRP: $227.18
You save 15%
Setra 26510R5WD2BT1C 0–0.5" WC Unidirectional Low Differential Pressure Transducer quantity
0–0.5″ WC Unidirectional Low Differential Pressure Transducer

Setra

SKU: 26510R5WD11T1C
$197.54
MSRP: $227.17
You save 15%
Setra 26510R5WD11T1C 0–0.5" WC Unidirectional Low Differential Pressure Transducer quantity