Sensors > Current



Mfg. Part # Description Condition Price Buy
LEM SA
LA55P
Current Sensor. Hall effect 0-50Amps AC or DC. Measuring range- 70 A, secondary signal-50 mA, supply voltage:12-15 Bi, accuracy: 0.9%. Technology : Closed loop Hall Effect. Package: PCB-mounting, 37mm x 25mm x 27mm above board. FN $33.88
SANGAMO
81BQ-572 529 5K1(Rr27 7/9)
Meter, Kilowatt-Hours. 120V - Rr 27 7/9 glass cover over 5 rotary 0-9 indicators. 5 Heavy pins in back. No socket. Glass cover about 5.7"OD and 6"Deep. 5-Dial. Weighs 5.5 lbs. Sockets seem to be available at local hardware stores. NS $122.88
BENDER GmbH
RCMA470LY
Ground fault monitor for grounded AC/DC systems - Residual Current Monitor Software Version: D55 V2.0 Werk-Nr 0203020067 The RCMA470LY monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC, pulsed DC, and pure DC type systems (Type B). Features include two seperately adjustable setpoints from 30mA...3mA for the main alarm and 50% of the set value for the pre-alarm, LED meter display (0-100%), adjustable time delay from 0...1 s for the pre-alarm and 0...10sec for the main alarm, fault storage, 2 DPDT alarm relays which can be set for normally energized and normally de-energized operation. An external BENDER current transformer is required for operation. DIFFERENZSTROMUBERWACHUNGSGER The RCMA470LY has a lower starting setpoint range than the RCMA471LY, and uses smaller current transformers. No transformer included. RFE $588.95
EMPRO
HA150100
External Portable Shunts 0-150-ADC input  0-100mV to analog meter. NS $29.99
LEM SA
HA10NP/SP5
Hall Effect transducer, open loop. DC to 50kHz. PC board mounting. Galvanic isolation between two primary windings. Pri nominal: Series: +/-5A Ipn  Parallel:+/-10Amp. Primary current measuring range: Series:0- +/-10A Ip  Parallel: 0 -+/-20A Ip.  Analogue output: +/-4V. Load resistance:>4kohm. Rms rated V: 500V. Supply: +/-15V <20mA.  Spec sheet included. 19x15x21mmH. Manuf in the UK. Either unsoldered or prepped, so we sell them as used but guaranteed not DOA. USED $25.00
OHIO SEMITRONICS
CT4080
Input: 0~1,000Amps DC~5kHz Output: 0 - 100mV @ 200mA 5-Pin MS connector OHIO SEMITRONICS CT4080 CURRENT SENSOR - TRANSDUCER USED $75.00
SIEMENS
3UG3522-1AL20
8A/250V 50/60Hz 1/3HP 1-Phase Monitoring Relay - Due to the ON-delay T2, current peaks (OVER function) or current drops (UNDER function), which may occur during closing, do not result in a change to the relay state, for example suppression of the starting current during motor acceleration. The delay time T1 prevents the relay from picking up and releasing - A green LED signalizes the applied supply voltage. A yellow LED indicates the relay status. Current monitoring without memory (NO MEMORY) (Fig. IIIa) When the value of the monitored alternating or direct current has reached the threshold set at the front panel, and the set delay time T1 has elapsed, the output relay releases. As soon as the current reaches the hysteresis value, the relay picks up again. Current monitoring with memory: (Fig. IIIb) When the set threshold value has been reached and the set delay time T1 has elapsed, the output relay releases and remains in this state, even when the measured current reaches the set hysteresis value again. A reset is performed by switching the supply voltage off and on. 23mm wide 78mm tall 104mm OAD - 4 controls on front panel, tiny little Überwachungsrelais. RFE $95.00
CLARE -ELECTROSEAL
SBB3A0135A
Current sensing switch 135Amp 5%, max res 0.0002. Double marked RCA 3640834-19. Module: 3.855" long x 0.75" deep x 0.876" tall with heavy gauge tabs on each end. Overall with tabs 6" long. RFE/Removed from equipment. AR $19.50
LEM SA
HAX500S
Current Sensor, 500Amp AC, DC, Pulsed.  For the electronic measurement of currents DC to 25kHz. Primary nominal current rms IPN: 500A.  Primary current measuring range IP:500A ± 1500.  Vc supply: +/-15V 20mA. V-Out Output voltage @ ± IPN, RL = 10kW, TA = 25°C: ± 4V.  R-L Load resistance: >1kOhm.   Has a galvanic isolation between the primary circuit (high power) and the secondary electronic circuit. 4 output pins. Large 2.5" wide slot for the heavy current conductor. 144x50x62mmH. 2 lbs. FN $71.88
American Aerospace Controls
913A30C
Relay, current sense. Contactor: 0-5VDC. Coil: 28VDC. Connection: 6 pin male. Mech: Socket. Body: 1.6 square x 3"H. Weight: 5.1 oz. DC current sensor/transducer. Hermetically sealed case. FN $87.95
Neilsen-Kuljian
5B025-4 Sentry 250
1-150Amp Current Sensors/Switch NEW (cont) 300A (6-sec) 900Amps for 1 second - 15-turn trimpot adjusts for 1-150 Amps. Switch up to 0.3 Amp @ up to 120V AC or DC NS $35.95
LEM SA
HA10-NP/SP1
Current transducer 0-5/10Amp AC/DC. Open loop hall effect transducer DC to 50kHz. Galvanic isolation between two primary windings. Pri nominal: Series: +/-5A Ipn  Parallel:+/-10Amp. Primary current measuring range: Series:0-+/-10A Ip  Parallel: 0-+/-20A Ip.  Analogue output: +/-4V. Load resistance:>4kohm. Rms rated V: 500V. Supply: +/-15V <20mA. Case: PC board mounting 19x15x21mmH. Spec sheet included. NOS $33.00
CLARE -ELECTROSEAL
B2138E511
Current sensing switch 34Amp 5%, max res 0.0004. Module: 3.855" long x 0.75" deep x 0.876" tall with heavy gauge tabs on each end. Overall with tabs 6" long. RFE/Removed from equipment. AR $19.50
CLARE -ELECTROSEAL
SBB3A0020A
Current sensing switch 20Amp 5%, max res 0.0004. Double marked RCA 3640834-10. Module: 3.855" long x 0.75" deep x 0.876" tall with heavy gauge tabs on each end. Overall with tabs 6" long. RFE/Removed from equipment. AR $19.50
CLARE -ELECTROSEAL
SBB3A0030A
Current sensing switch 30Amp 5%, max res 0.0004. Double marked RCA 3640834-13. Module: 3.855" long x 0.75" deep x 0.876" tall with heavy gauge tabs on each end. Overall with tabs 6" long. RFE/Removed from equipment. AR $19.50
MICRO SWITCH
CSLF4HG
DC / DC Enclosed Sensor with 4-20mA Output. 11-24VDC Supply@30mA Max Sensed Current 147A-peak Adjustable Operating Range New, w/ spex NS $144.88
American Aerospace Controls
S326-50
CURRENT SENSOR USED $32.50
LEM
PR30
ClipOn Probe measures AC, DC and complex waveform Currents with a resolution of 1mA from 5mA to 30Amps from DC to 100kHz. Requires one 9V alkaline battery. Max current 20Amps RMS Output 100mV/Amp Cable with BNC output. by LEM HEME Ltd - UK Factory new each with manual. Beautiful parts... FN $295.00
LEM SA
HA25NP/SP5
25AMP INPUT current sensor FN $27.50
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