VAC DC/AC Current Sensors

Features

  • Low offset and gain errors, low temperature drift, excellent long-term stability
  • Low power consumption due to PWM compensation current driver stage
  • Wide measuring range up to 2500 A
  • Excellent dynamic properties (rise time, pulse response) due to a low winding capacity of the compensation current winding

Operating Principle

Closed-loop or zero-flux current probes have high linearity and excellent frequency response from dc. The current IP to be measured is magnetically coupled to the compensation current through a soft magnetic core. The magnetic flux of this core is measured by a magnetic field detector and controlled to zero by the electronics, generating a compensation current, IS, in the compensation winding. This current is proportional to the primary current, IP. VAC magnetic field detector reduces the offset voltage, temperature and time drift commonly associated with Hall effect probes.

LEM and VAC Panel Mount with Aperture, Comparison

LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S or LF 1010-S X100 +/-15V connector pinout differences
LF 1005-S/SP variant X101 +/-15V, JST BVH-21T-P1.1
LF 1005-S/SP22 X102 +/-15V, connector pinout differences
LF 1005-S or LF 1010-S X150 +/-24V, connector pinout differences
LF 1005-S/SP variant X151 +/24V, JST BVH-21T-P1.1
LF 1005-S/SP22 X152 +/-24V, connector pinout differences
Note: The 4640 series is a form factor compatible drop-in replacement for the LF 1005-S. The only exception is differences in connector pinout. Versions of the VAC 1000A may exist that are pin-out compatible.
LEM Part Number VAC Part Number, T60404-4644 Series Notes
LAC 300-S/SP1 /SP5* X052 Drop-in placement
LAC 300-S/SP1 /SP5* X053 Drop-in placement
None X054  
LAC 300-S/SP2* X056 Drop-in placement
LAC 300-S/SP3 /SP4* X060 Drop-in placement
Some current ranges do not match exactly. Connector pin-outs are the same between VAC and LEM. Connector call-out on data sheet is different but might be compatible regardless. All conversion ratios and form-factors are the matched.

LEM and VAC Panel Mount with Aperture, Comparison

LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S or LF 1010-S X100 +/-15V connector pinout differences
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S/SP variant X101 +/-15V, JST BVH-21T-P1.1
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S/SP22 X102 +/-15V, connector pinout differences
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S or LF 1010-S X150 +/-24V, connector pinout differences
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S/SP variant X151 +/24V, JST BVH-21T-P1.1
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LF 1005-S/SP22 X152 +/-24V, connector pinout differences
LEM Part Number VAC Part Number, T60404-4640 Series Notes
Note: The 4640 series is a form factor compatible drop-in replacement for the LF 1005-S. The only exception is differences in connector pinout. Versions of the VAC 1000A may exist that are pin-out compatible.
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LEM Part Number VAC Part Number, T60404-4644 Series Notes
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LAC 300-S/SP1 /SP5* X052 Drop-in placement
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LAC 300-S/SP1 /SP5* X053 Drop-in placement
LEM Part Number VAC Part Number, T60404-4640 Series Notes
None X054  
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LAC 300-S/SP2* X056 Drop-in placement
LEM Part Number VAC Part Number, T60404-4640 Series Notes
LAC 300-S/SP3 /SP4* X060 Drop-in placement
LEM Part Number VAC Part Number, T60404-4640 Series Notes
Some current ranges do not match exactly. Connector pin-outs are the same between VAC and LEM. Connector call-out on data sheet is different but might be compatible regardless. All conversion ratios and form-factors are the matched.

Pricing

VAC Closed-Loop Current Sensors

Part No.DescriptionQtyPriceIn Stock
4644-X052

DC-AC Current Probe, Panel Mount,  ±500Arms, 0.5mA/A Sensitivity, ±12-15V  Supply

1+
10+
25+
50+
100+
$115
$105
$100
$90
Ask
Quantity Price
1 - 9 $115.00
10 - 24 $105.00
25 - 49 $100.00
50+ $90.00
4644-X054

DC-AC Current Probe, Panel Mount,  ±700Arms, 0.3mA/A Sensitivity, ±12-15V  Supply

1+
10+
25+
50+
100+
$120
$110
$100
$90
Ask
Quantity Price
1 - 9 $120.00
10 - 24 $110.00
25 - 49 $100.00
50+ $90.00
4640-X152

DC-AC Current Probe, Panel Mount,  ±1000Arms, 0.2mA/A Sensitivity, ±24V  Supply

1+
10+
25+
50+
100+
$145
$130
$120
$110
Ask
Quantity Price
1 - 9 $145.00
10 - 24 $130.00
25 - 49 $120.00
50+ $110.00

Accessories

Part No.DescriptionQtyPriceIn Stock
HAA15-0.8-A+G

Power Supply, Open Frame, Linear, Dual, ±15V, 0.8A

$100
HBB15-1.5-A+G

Power Supply, Open Frame, Linear, Dual, ±15V, 1.5A

$120

Terms and Conditions

Terms and Conditions:

Prices above are for domestic deliveries to Canada, USA and Mexico only.
Prices are expressed in U.S. Dollars, FCA San Carlos, California.
Prices are subject to change without notice.

Payment:

Visa, MasterCard, Amex, or Net 30 days (subject to credit acceptance).

Delivery:

From Stock to 60 Days