40mm Test Finger Probe for Hand-Held Blender Switch Protection and Compliance Testing | Stainless Steel IEC 60335-2-14 Test Tool

40mm Test Finger Probe for Hand-Held Blender Switch Protection and Compliance Testing | Stainless Steel IEC 60335-2-14 Test Tool

Product Description

The HeJin 40mm Stainless Steel Test Finger Probe is designed for testing the biased-off switch protection of hand-held blenders in accordance with IEC 60335-2-14 Clause 20.103.

Featuring a Φ40mm stainless steel cylindrical probe with a hemispherical end and nylon handle, it provides a straightforward and repeatable way to verify whether a hand-held blender can be inadvertently operated when force is applied to the switch actuator.

Why This Test Matters

A switch may look well protected during visual inspection, but the real question is whether its construction prevents unintended operation when the appliance is handled.

The 40mm probe provides a standardized way to challenge the switch actuator.

The test helps engineers answer practical questions such as:

• Is the switch sufficiently recessed?
• Is the switch adequately guarded?
• Can normal handling unintentionally activate the switch?
• Does the switch protection satisfy the applicable test method?
• Does the appliance remain inactive when the specified probe is applied?

IEC 60335-2-14:2025 specifically updated the requirements concerning inadvertent operation of hand-held blenders and knives under Clause 20.103.

International Reference Standards:

IEC 60335-2-14:2025 — Clause 20.103

Household and similar electrical appliances – Safety – Part 2-14: Particular requirements for kitchen machines

Technical Parameters

Product Features

1. Standard 40mm Probe Diameter

   The working probe diameter is Φ40mm, matching the dimensional requirement specified for the relevant hand-held blender switch test.

2. Hemispherical Working End

   The rounded end provides the defined contact geometry required by the test method rather than using an arbitrary flat or pointed tool.

3. Stainless Steel Probe

   The probe is manufactured from stainless steel, providing a rigid testing surface suitable for repeated laboratory use.

4. Nylon Handle

   The nylon handle provides a practical gripping surface and keeps the probe easy to handle during manual testing.

5. Simple Manual Operation

   No complicated control system is required. The operator positions the probe against the specified switch actuator and performs the test according to the applicable standard.

6. Suitable for Laboratory Compliance Work

   The probe can be used as part of household appliance testing, product development, quality inspection and compliance verification workflows.

Core Testing Function

The primary function of this Test Finger Probe is:

According to IEC 60335-2-14:2025 Clause 20.103, hand-held blenders covered by the clause shall incorporate a biased-off switch whose actuating member is recessed, guarded or otherwise constructed to prevent inadvertent operation. Compliance is checked by applying the specified cylindrical rod to the switch actuator.

FAQ

1. What is a Test Finger Probe?

   A Test Finger Probe is a standardized or application-specific testing tool used to evaluate whether specified parts of a product can be accessed or operated under defined test conditions.

   IEC 61032 establishes probe specifications for verifying protection provided by enclosures.

2. What is this 40mm Test Finger Probe used for?

   This model is primarily used for evaluating the biased-off switch protection of hand-held blenders according to IEC 60335-2-14 Clause 20.103.

3. Why is the probe diameter 40mm?

   The 40mm diameter is specified by IEC 60335-2-14 Clause 20.103 for the relevant hand-held blender switch test.

4. Does the probe have a hemispherical end?

   Yes. The probe is designed with a hemispherical working end, matching the geometry specified in the applicable test method.

5. What is the probe made of?

   The probe is made of stainless steel and the handle is made of nylon.

6. What is the maximum test force?

   The applicable IEC 60335-2-14 Clause 20.103 test specifies a force not exceeding 5 N.

7. Is this the same as IEC 61032 Test Finger Probe B?

   No. It is better not to describe HT-I33 as generic IEC 61032 Probe B.

   HT-I33 is a dedicated 40mm cylindrical probe for the hand-held blender switch test under IEC 60335-2-14 Clause 20.103.

8. Can the probe be used for product development?

   Yes. It can be used during prototype development and design verification to evaluate the switch protection structure.

Why Choose HeJin?

1. One Supplier, More Than One Test Requirement

   HeJin's product portfolio extends beyond Test Finger Probes into household appliance testing equipment, IP testing equipment, leak testing equipment and automotive testing equipment.

   This can be useful for customers building or upgrading a broader product testing laboratory.

2. Engineering Before Sales

   A good testing-equipment supplier should understand the test requirement before discussing the equipment.

   For customers with a special sample, unusual switch construction or a different compliance target, HeJin can review the application and recommend an appropriate testing approach.

3. Manufacturer-to-Customer Communication

   Direct communication helps reduce unnecessary information loss between the end user and the engineering team.

4. Long-Term Support

   For laboratory equipment, purchasing is only the beginning. Application guidance, technical communication and after-sales support can become equally important over the service life of the product.