Model 7368 Dual-Channel Piezo-Cell Overcurrent Protection Switch for Testing Multiple Capacitors
Overview
The PathWay® Model 7368 Dual Channel Piezo-Cell Overcurrent Protection Switch monitors the peak current flow in up to 2 channels simultaneously. The basic function is to switch off the current flow if the peak value exceeds the user specified maximum. The unit normally operates stand alone but is capable of being remotely configured via RS232 serial data communication interface.
FEATURES OF THE MODEL 7368 OVERCURRENT PROTECTION SWITCH:
- Supports simultaneous testing of two capacitors.
- As an option, this design can be expanded to support testing of more than
two capacitors in the test platform. Call for quote.
- Remote control operation is available via RS232 serial data.
- Switches both center conductor and shield of the BNC connectors.
- Common input signal.
- Maximum peak input voltage with load attached is 55 millivolts.
- Maximum current flow is 13.7 mA.
- Selectable maximum allowed peak current (0 - 13.7mA)
- Fault indicator LED for each channel.
- Fault reset button for each channel.
- User configuration menu available from unit via serial terminal emulators
(hyper-terminal or Tera Term) configurations are detailed in User's Manual.
- Selectable maximum number of threshold violations before a fault is declared.
- ADC calibration (Analog-to-Digital Converter).
- Selectable sampling filter size (1-1000).
- Press any key on serial terminal to stop current monitor mode.
- Display instantaneous currents on any calibrated channel.
- USB port on rear panel for future use (not active).
TECHNICAL SPECIFICATIONS:
- PORT CONNECTORS: (3) BNC(F) connectors labeled COM-IN, OUT-A, and OUT-B
- FRONT PANEL CONTROL: (3) Pushbuttons labeled RESET A, RESET B, and SPARE.
- DISPLAY: (4) LED's labeled RESET A, RESET B, RESERVED, and SERIAL.
- REMOTE CONTROL: (1) DB9(F) connector accepts RS232 serial data to control unit operational parameters and reset of fault display.
- POWER: "Wide Range" CE and UL listed table mount power module (Cat. No. 521091) 100VAC/240VAC, 50Hz/60Hz supplies 5VDC, 3.0A to the unit. Ideal for international applications.
- DIMENSIONS: Desktop: 7.25" W x 2.75" H x 9.5" D. (18.4 x 7.0 x 24.1 cm)
- WEIGHT: Approximately 2.7 lbs. (1.2 Kg)
Why would the Model 7368 Overcurrent Protection Switch be Used?
Piezo-based systems and sensors are valued for durability, precision, and resistance to environmental stress — but they can still be damaged by excessive current. A dedicated overcurrent protection switch like the Model 7368 helps safeguard these components, improving reliability and reducing failure risk in complex electronic and test environments.
DUAL CHANNEL PIEZO-CELL OVERCURRENT PROTECTION APPLICATION:
Overcurrent switch application supports simultaneous testing of two capacitors. DB9 Remote accepts ASCII RS232 Serial data commands for Remote Control Operation.

Use Cases by Industry for Where the Model 7368 May be Useful:
Electronics Manufacturing & Test Labs – For production and quality control of piezo components.
Research & Development – Especially where precise current thresholds must be monitored in experimental setups.
Industrial & Automation – Protecting piezo-based detectors or actuators in industrial control systems.
Automotive & Aerospace – In test cells for piezo sensors or actuators used in vibration dampening, fuel injectors, or control surfaces. Piezo tech’s rugged attributes make it relevant here.
Instrumentation & Measurement Equipment – Where piezo devices are part of precision measurement or analytics hardware.
Ordering Information
- Catalog Number: 307368
- Model Number: 7368
- Base Price: See website or contact us for current pricing and availability.
Documentation & Support
- Specification Sheet (PDF) Download Available.
- Product Manual available upon request.
- For custom fiber optic network switch requirements contact our sales support team 401-943-1164 or email eslab@electrostandards.com
- We welcome international inquiries and ship worldwide.
Shipping and Returns 
- Shipped via UPS ground (unless otherwise requested).
- Freight Charges prepaid and added to invoice. We can estimate freight charges for you.
- Return policy: contact us within 30 days of shipment for an RMA number. Items returned without RMA not accepted. Please refer to our full return policy in our Terms and Conditions found on our website.
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All data switches, data communication products, and data acquisition products are subject to a one year warranty against manufacturing defects. The limit of ESL liability is limited to the cost of the ESL product provided.
All ESL products are available for export.
Electro Standards welcomes International inquiries: commutateurs à fibres optiques, interruptores de fibra óptica, switch in fibra ottica, switches de fibra óptica, fiberoptiska switcher.
*Prices online are subject to change and verification.
All data switches, data communication products, and data acquisition products are subject to a one year warranty against manufacturing defects. The limit of ESL liability is limited to the cost of the ESL product
*Prices online are subject to change and verification.