Product Name:Industrial-Grade Power Supply
Brand Name:Yokogawa
Model Number:PW401
Country of Origin:Japan
Warranty:12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
Yokogawa |
Model Number: |
A2EE1A-T |
Country of Origin: |
Japan |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
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Parameter |
Value |
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Model |
PW401 |
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Application |
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Maximum Continuous Operating Voltage (Uc) |
140 V AC |
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Permissible Current Leakage |
≤1 mA (at 200 V DC) |
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Voltage Protection Level (Up) |
≤1000 V |
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Nominal Discharge Current (In) |
500 A (8/20 µs) |
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Maximum Discharge Current (Imax) |
1000 A (8/20 µs) |
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Discharge Starting Voltage |
≥240 V DC |
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Rated Load Current |
≥220 V DC |
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Ambient Temperature |
-10 to +60°C |
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Relative Humidity |
5 to 90% RH (No condensation) |
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Installation Altitude |
Max. 2000m |
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Compliance |
JIS C 5381-1 (Class II) |
The PW401 is a high-performance surge arrester engineered to shield 100 V AC power supply circuits from induced lightning transients . Certified to JIS C 5381-1, the PW401 effectively clamps overvoltages to safe levels. Its plug-in design allows the main unit to be removed from the terminal block for performance checks. A green LED indicator confirms operational status, while the QR code facilitates efficient plant maintenance and asset tracking for the PW401 arrester.
Mounting: Mount the unit securely following the provided dimensional diagrams.
Wiring: Use conductors with a nominal cross-sectional area of 2.0 mm² or more (e.g., 600V IV or KIV cables).
Grounding: The ground terminal must be connected to earth ground through minimum resistance. Interconnect the ground terminals of the arrester and the protected instrument.
Tightening Torque: Must not exceed 1.2 N·m for the arrester write terminal.
Pluggable Design: The main unit is removable from the socket on the terminal base, facilitating easy inspection and replacement .
Status Indication: Equipped with a green LED that illuminates when the power is on and extinguishes when the surge absorbing element fails.
Asset Management: Integrated QR code for rapid access to product specifications and manuals.
Safe Failure: The circuit between the surge side and protect side remains closed even when the main body is removed.
The arrester utilizes a surge absorbing element (likely a Metal Oxide Varistor) that presents high impedance under normal operating conditions. When a transient surge exceeds the discharge starting voltage (≥240 V DC), the component rapidly switches to a low-impedance state, diverting the surge current to the ground. This action effectively clamps the voltage at the protected instrument's terminals to a safe level (Up ≤ 1000 V), safeguarding sensitive electronics from damage. Upon surge dissipation, the arrester returns to its high-impedance state.
Q1: What is the maximum discharge current capacity of the PW401 arrester?
A1: The maximum discharge current (Imax) is 1000 A (8/20 µs).
Q2: What should I do when the green LED indicator turns off?
A2: The green LED going out indicates that the surge absorbing element is broken. The unit, including the terminal block, must be replaced.
Q3: Can I replace just the main unit if it's broken?
A3: No. It is essential to replace both the main unit and the terminal block, as the terminal block may also be damaged by surges, ensuring the protective performance level is maintained.
Q4: How often should the arrester be checked?
A4: It is recommended to check the arrester at least once a year. In areas with frequent lightning, checks should be performed more often, particularly after thunderstorms.
Q5: What is the purpose of the QR code on the product?
A5: The QR code provides a convenient link to confirm the specifications of the purchased product and access the user manual, aiding in efficient plant maintenance and asset management.
Inquiry Now: [email protected]
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