Shanghai Huabang Industrial Business Network - overspeed switch

[overspeed switch]LY1oG-Bo/oD Digital overspeed switch

2026-6-18 20:26:39

Main performance and technical parameters of LY1oG-Bo/OD digital overspeed switch

Testing Scope	�� 0.01 revolutions per minute -4999.99 revolutions per minute (required speed)	detection accuracy	1 ��
output method	Three relay outputs: Three sets of normally open Normally closed point	input voltage	DC220
Electric shock capacity	1A / 220 VAC ,2A / 30 VDC	fire rating	DC0.27
Operating Temperature	-20��--+55��	Storage temperature	-25��--+60��
relative humidity	��85��	altitude	-Below 2000 meters
journal	ø11 ��ø18	Shell material	die-cast aluminum alloy

Appearance and installation dimensions of digital overspeed switch

[overspeed switch]LY1G overspeed switch

2026-6-18 20:26:27

The LY1G unidirectional overspeed switch is made of precision die cast aluminum alloy processing technology, which has the characteristics of small size, precise action, standardized speed, easy installation, and good sealing. This model is an automatic reset mechanism and replaces the original LY1 one-way axis overspeed switch.

2. Overspeed switch performance:
LY1G unidirectional shaft overspeed switch is suitable for auxiliary circuits with AC 50Hz, AC380V, DC220V. It limits the maximum speed of the motor and can quickly disconnect the circuit to achieve safe operation.

3. Model meaning:

4. Contact parameters:

Contact parameters				Contact action time (S)	Disconnecting speed accuracy (r/min)
Usage category	Rated working voltage (V)	Rated working current (A)	Agreed heating current (A)	Contact action time (S)	Disconnecting speed accuracy (r/min)
AC-15DC-13	~380-220	~0.8-0.27	six	��0.15	± 3%

LY1G overspeed switch

[overspeed switch]LY101 overspeed switch

2026-6-18 20:26:18

LY101 overspeed switch is a new series of products developed by absorbing advanced foreign technology and combining it with domestic practical needs. The product has exquisite appearance, high switch action accuracy, forward and reverse bidirectional protection, high protection level, can withstand a wide range of environmental temperature changes, and is easy to install. This series of products features an automatic reset mechanism.

2. Product performance:
The product is widely used in industrial fields such as lifting, metallurgy, and ports, and is a speed control device that restricts rotating machinery, lifting and hoisting systems, and other devices that require safety protection. It is often combined with DC speed measuring generators and encoders to generate and control speed signals, making it an ideal and reliable protective device.

3. Model meaning:

4. Contact parameters:

Contact parameter				Contact action time (S)	Disconnecting speed accuracy (r/min)
Usage category	Rated working voltage (V)	Rated working current (A)	Agreed heating current (A)	Contact action time (S)	Disconnecting speed accuracy (r/min)
AC-15DC-13	~380-220	~0.8-0.27	six	��0.15	±3%

5. Environmental conditions:
5.1 Altitude not exceeding 2000M;
5.2 Surrounding air temperature -5 ��~+40 ��;
5.3 Places without significant shaking and impact;
5.4 Installation category III;
5.5 Protection level IP54;
5.6 Pollution level 3.

6. Appearance and installation dimensions

Axis key size

7. New LY101 contact form

8. Notice:
8.1 The connection between the product and the protected equipment must meet the mechanical installation requirements.
8.2 The contact disconnection speed is set according to the requirements of the customer's protected equipment, and the customer should not replace it by themselves.
8.3 If the customer does not provide specific requirements for the setting value of the contact disconnection speed, the factory product shall be set at 1.2 times the rated speed of the customer's rotating mechanical spindle

[overspeed switch]LY1 overspeed switch

2026-6-18 20:26:09

The LY1 overspeed switch is mainly used in the overspeed protection system of cranes

Model	Speed range (r/min)	type	Reset method	Body material	Installation method
LY1-1/��	600~3000	Unidirectional axis	Manual reset	Ordinary cast iron	Foot installation
LY1-1/��D	600~3000	Unidirectional axis	Manual reset	Ordinary cast iron	Flange installation
LY1-1X/��	600~3000	Bidirectional axis	Manual reset	Ordinary cast iron	Foot installation
LY1-1X/��D	600~3000	Bidirectional axis	Manual reset	Ordinary cast iron	Flange installation