Klein Tools CL390 AC/DC Digital Clamp Meter Auto-Ranging 400 Amp TRMS with Temperature Measurement
Professional True RMS Digital Clamp Meter with Advanced Measurement Capabilities
The Klein Tools CL390 delivers professional-grade electrical measurement with auto-ranging 400 amp AC/DC current capacity and True Root Mean Squared (TRMS) technology for accurate readings. This versatile digital clamp meter features CAT III 600V safety rating with double insulation, high-visibility reverse contrast LCD display, and comprehensive measurement functions including temperature measurement with K-Type thermocouple. Built to withstand 6.6-foot drops and designed for reliable performance in residential, office, and light-industrial environments.
Professional Features & Benefits
- 400 Amp AC/DC Current Measurement: Auto-ranging TRMS technology provides accurate current readings up to 400 amps for comprehensive electrical diagnostics and troubleshooting.
- CAT III 600V Safety Rating: Class 2 double insulation safety rating with CE certification ensures safe operation in demanding electrical environments up to 600 volts.
- High-Visibility Reverse Contrast LCD: 4000 count display with reverse contrast technology delivers clear readings in all ambient lighting conditions for improved visibility.
- Temperature Measurement Capability: Integrated K-Type thermocouple probe measures temperatures from -40� to 1832�F (-40� to 1000�C) for comprehensive system diagnostics.
- Comprehensive Measurement Functions: TRMS AC/DC current and voltage, resistance up to 40 M�, frequency, capacitance up to 4000 �F, continuity, duty cycle, and diode test capabilities.
- Rugged Construction: Built to withstand 6.6-foot drops with ABS housing and auto power-off after 10 minutes to conserve battery life for reliable field use.
- Non-Contact Voltage Detection: Integrated NCVT in clamp jaw provides safe voltage detection without direct contact for enhanced safety during electrical work.
Technical Specifications
- Ac Voltage: 600 V
- Auto Power Off: Yes
- Batteries: 3 x AAA
- Capacitance: 4000 �F
- Current: 400 A AC/DC
- Dc Micro Amp: 200 �A
- Dc Polarity Indicator: Yes
- Dc Voltage: 600 V
- Department: Electrical
- Depth: 8.4500 in
- Display: 4000 Count Reverse Contrast LCD
- Drop Protection: 6.6' (2 m)
- Frequency: 10 Hz to 60 kHz for 8 V to 220 V AC RMS
- Height: 1.5060 in
- Jaw Size: 1.6" (4.1 cm)
- Material: ABS/Electronics
- Ohms Resistance : 40 M�
- Overall Height: 1.5" (3.8 cm)
- Overall Length: 8.45" (21.5 cm)
- Overall Width: 3.5" (8.9 cm)
- Product Details: AC/DC Current TRMS Clamp
- Product Function: TRMS, AC/DC Current, NCVT, AC/DC Voltage, Resistance, DC microamp, Frequency, Capacitance, Continuity, Duty Cycle, Diode Test, and Temperature
- Product Group: Tool Sets
- Product Subgroup: Tool Kits
- Product Type: AC/DC Current TRMS Clamp
- Product Voltage: 600 V AC/DC
- Standard: CATIII 600V, Class 2, Double Insulation Safety Rating, CE Certified
- Temperature Range: -40� - 1832�F (-40� - 1000�C)
- Weight: 0.5160 lbs
- Width: 3.5120 in
Installation & Operation
- Mount the unit in a suitable location with appropriate clearance and access for connections and service.
- Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
- Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
- Configure any available load management or control features as supported by the provided specifications.
- Test automatic transfer or operational functionality and verify proper performance before placing into service.
- Complete final inspection and follow ongoing maintenance practices appropriate to the product category.
Professional Applications
- Electrical Troubleshooting and Diagnostics
- HVAC System Maintenance and Repair
- Industrial Equipment Testing
- Commercial Facility Maintenance
- Residential Electrical Service
- Motor and Drive System Analysis
- Power Quality Assessment
Why Choose Klein Tools Quality?
Klein Tools delivers professional-grade reliability with CAT III 600V safety certification, Class 2 double insulation rating, and rugged construction built to withstand 6.6-foot drops. The comprehensive measurement capabilities, TRMS accuracy, and durable ABS housing ensure dependable performance for demanding electrical applications across residential, office, and light-industrial environments.
Manufacturer Resources
Product Specs
- Ac Voltage:
- 600 V
- Auto Power Off:
- Yes
- Batteries:
- 3 x AAA
- Capacitance:
- 4000 µF
- Current:
- 400 A AC/DC
- Dc Micro Amp:
- 200 µA
- Dc Polarity Indicator:
- Yes
- Dc Voltage:
- 600 V
- Depth:
- 8.4500 in
- Display:
- 4000 Count Reverse Contrast LCD
- Drop Protection:
- 6.6' (2 m)
- Frequency:
- 10 Hz to 60 kHz for 8 V to 220 V AC RMS
- Jaw Size:
- 1.6" (4.1 cm)
- Ohms Resistance :
- 40 MΩ
- Overall Height:
- 1.5" (3.8 cm)
- Overall Length:
- 8.45" (21.5 cm)
- Overall Width:
- 3.5" (8.9 cm)
- Standard:
- CATIII 600V, Class 2, Double Insulation Safety Rating, CE Certified
- Temperature Range:
- -40° - 1832°F (-40° - 1000°C)
- Department:
- Electrical
- Product Group:
- Tool Sets
- Product Subgroup:
- Tool Kits
- Product Type:
- AC/DC Current TRMS Clamp
- Product Voltage:
- 600 V AC/DC
- Product Function:
- TRMS, AC/DC Current, NCVT, AC/DC Voltage, Resistance, DC microamp, Frequency, Capacitance, Continuity, Duty Cycle, Diode Test, and Temperature
- Product Details:
- AC/DC Current TRMS Clamp
- Product Height:
- 1.5060 in
- Product Material:
- ABS/Electronics
- Product Weight:
- 0.5160 lbs
- Product Width:
- 3.5120 in