Paperless Datasheet

Going green and protecting environment is manufacturers' responsibility. Each WatchfulEyE product has a link of downloading data sheet on its enclosure:
http://datasheet.watchfuleyesolutions.com/US120481.html

Model & Ordering Code

Certificates of Products

Description

1. One-piece compact modular design with minimized volume, 35mm standard DIN-rail installation, easy to be integrated into a power distribution cabinet
2. The LED indicator indicates the working status of surge protection. When the indicator is off, it prompts to replace it timely to prevent the system from being damaged by the secondary surge
3. The product integrates high-quality MOV chip, its response speed is as fast as 5ns
4. In accordance with: IEC 61643-11 - Class III and UL1449 Type 4 Location
5. Location of use: AC load centers

WTH-SG/TL20-AC Series Technical Data
Nominal Discharge Current (In)	10kA
Max. Discharge Current (Imax)	40kA
Open circuit voltage (Uoc)	20kV
Max Line Current	10A
Protection Modes	L/N, L/PE, N/PE
Protective Element	MOV + GDT
Response Time (tA)	<5ns
Leakage Current (L-PE, N-PE)	NO
Thermal Protection	YES
Protection Rating (IP Code)	IP 20
Surge Life at 3kA (8/20μs)	>1000 events
Temperature Range	- 40°F to 176°F (-40°C to 80°C)
Relative Humidity	0% to 95% noncondensing
Maximum Operating Altitude	10,000 feet (3000m)
Terminal Cross Section	35mm² (solid) / 25mm² (stranded)
Stripping Length Contacts	0.6inches (15mm)
Terminal Screw Torque	Max. 3.5Nm
DIN Rail EN60715	35mm top-hat rail
Dimensions DIN 43880	72mm (4TE)
Housing Material	Thermoplastic (UL94 V-0)
Housing Design	Compact design

Ac power system parallel connection and series connection diagram

1. When connecting in parallel, only the upper position (A) needs to be connected, and the lower position (B) does not need to be connected.
2. When connecting in series, the upper position (A) and the lower position (B) must be connected at the same time, and make sure the maximum load current must be less than 10A (C).

Dimensions

Common Terms and Definitions

1. Normal operating voltage rating (Un)
2. Maximum Continuous Operating Voltage (Uc/MCOV):
Maximum r.m.s. voltage, which may be continuously applied to the surge protective device's mode of protection.
3. Nominal Discharge Current for Class II Test (In):
crest value of the current through the surge protective device having a current waveshape of 8/20μs.
4. Maximum Discharge Current (Imax):
Crest value of a current through the surge protective device having an 8/20μs waveshape and magnitude according to the manufacturers specification. Imax is equal to or greater than In.
5. Voltage Protection Level (Up):
Maximum voltage to be expected at the surge protective device terminals due to an impulse stress with defined voltage steepness and an impulse stress with a discharge current with given amplitude and waveshape.

FAQ & Help

1. What should I do if I can't find the paper manual in the product packaging?
Watchful Eye products is committed to going green with paperless data sheets. On the side of each product enclosure is an engraved link with URL for downloading paperless data sheet and QR code of the website. If you need the paper data sheet, you can open the link and print the data sheet by yourself.

2. The advantages of fault indication windows?
If surge protection fails, the fault indication windows will turn red, thus it can be seen intuitively, and the surge protective device can be replaced in time to avoid damage to the equipment caused by a second surge.

3. What instruments can be used to test whether its surge protection function is normal or not?
Test with a Watchful Eye surge protector tester

4. How to connections of the SPD?
Please refer to the standard IEC 60364-5-53
Connecting conductors of SPDs:
Conductors between the SPD and the main earthing terminal or the protective conductor shall have a cross-sectional area not less than: - 6 mm² copper or equivalent for class Il tested SPDs installed at or near the origin of the installation;
- 16 mm² copper or equivalent for class I tested SPDs installed at or near the origin of the installation.
a) L/N to surge protector copper recommended diameter: 7AWG (10mm² ), minimum: 6mm²
b) surge protector to PE copper recommended diameter: 5AWG (16mm² ), minimum: 10mm²
(a+b) ≤ 0.5m

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