Product Overview
The ZLT-LJ3 Torque Test Device is a specialized tool designed to evaluate the torque resistance of cord anchorages in electrical appliances equipped with non-detachable flexible cords. It strictly adheres to IEC 60884-1 Clause 23.2 (Table 18), VDE0620 Clause 23.2 (Table 18), and IEC 60335-1 Table 12 Clause 25.15—making it a critical tool for ensuring that cords remain securely attached to devices under mechanical stress.
This device supports cords with a diameter of up to 10mm and generates torques ranging from 0.1N.m to 0.425N.m (via a set of calibrated weights). The standard outfit includes essential components: a hollow shaft (with drill chuck, rope wheel, and crank handle), an idler pulley (radius: 0.05m), and a weight set (2N, 3N, 5N, 7N, 8.5N) to produce precise torque values. Built for accuracy and ease of use, the ZLT-LJ3 is ideal for manufacturers of portable socket-outlets, household appliances, and power tools—helping them meet global safety standards for cord anchorage reliability.
Technical Parameters
Parameter | Specification |
Item NO. | ZLT-LJ3 |
Model | ZLT-LJ3 |
Brand | ZLTJC |
Conforming Standards | IEC 60884-1 Clause 23.2 (Table 18), VDE0620 Clause 23.2 (Table 18), IEC 60335-1 Table 12 Clause 25.15 |
Max Cable Diameter | Up to 10mm |
Torque Range | 0.1N.m – 0.425N.m (via weight set) |
Standard Outfit | 1× Hollow shaft (with drill chuck, rope wheel, crank handle); 1× Idler pulley (radius: 0.05m); 1× Weight set (2N, 3N, 5N, 7N, 8.5N) |
MOQ | 1 Unit |
Payment Term | T/T |
Product Origin | China |
Shipping Port | Guangzhou |
Lead Time | 10 Days |

Product Features
Precise Torque Generation
The ZLT-LJ3 uses a weight-driven system to produce torques from 0.1N.m to 0.425N.m—matching the exact values specified in IEC 60884 Table 18. This mechanical method ensures consistent, repeatable results, avoiding errors from electronic torque sensors.
Multi-Standard Compliance
By adhering to IEC 60884-1, VDE0620, and IEC 60335-1, the device supports testing for European, Asian, and global markets. This eliminates the need for multiple tools, reducing costs for manufacturers with international sales.
Complete Standard Outfit
The package includes all necessary components: a hollow shaft (for securing cords), an idler pulley (to maintain torque accuracy), and a calibrated weight set. No additional accessories are required to start testing.
User-Friendly Operation
The crank handle and drill chuck make it easy to secure cords of different diameters (up to 10mm). The idler pulley (radius: 0.05m) is pre-aligned to ensure torque is applied evenly, simplifying setup for technicians of all skill levels.
Application
Portable Socket-Outlet Manufacturing
Tests cord anchorages in socket-outlets (rated up to 16A, 250V or above) to ensure cords do not loosen under torque—preventing electrical hazards like short circuits or shock.
Household Appliance Production
Used for appliances with non-detachable cords (e.g., toasters, blenders, irons) to validate that cord anchorages withstand daily use and accidental pulling.
Power Tool Testing
Power tools (e.g., drills, saws) experience high mechanical stress on cords. The ZLT-LJ3 ensures their anchorages can resist torques up to 0.425N.m, meeting safety standards for industrial use.
Certification and QA Labs
Accredited labs use the device to verify compliance with IEC 60884 Table 18 and VDE0620 for product certification, while in-house QA teams use it for batch inspections.
FAQ
Q: What is the maximum cable diameter the ZLT-LJ3 can test?
A: It supports non-detachable flexible cords with a diameter of up to 10mm, covering most standard cords used in household appliances and portable socket-outlets.
Q: Does the device include weights for torque generation?
A: Yes. The standard outfit includes a weight set (2N, 3N, 5N, 7N, 8.5N) that produces torques from 0.1N.m to 0.425N.m—no additional weights are needed.
Q: Is the ZLT-LJ3 compatible with VDE standards?
A: Yes. It strictly complies with VDE0620 Clause 23.2 (Table 18), making it suitable for testing products intended for the European market.
Q: What is the lead time for ordering the ZLT-LJ3?
A: The lead time is 10 days from order confirmation. We also offer customizable shipping options to meet tight project deadlines.