LW26 Rotary Switch

About the LW26 Rotary Switch

The LW26 Rotary Switch is part of the ELEHPD Rotary Switch range. Introduction LW26 series rotary switches are suitable for: on-off of an electrical circuit, change-over of electrical circuits, motor switch, instrument switch, and main switch. LW26 series rotary switches comply with: GB 14048.3, GB 14048.5, and IEC 60947-5-1. LW26 series rotary switches have six current ratings: 10A, 20A, 25A, 32A, 63A, 125A, and 160A. LW26-20 ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Typical applications

Motor control centres and pump or fan starters
Machine building, conveyors, packaging and CNC equipment
HVAC control panels and building automation
Water treatment, irrigation and pumping stations
Panel retrofits replacing electromechanical control gear

How to specify the right Rotary Switch

Size the contact rating for the inductive load, not just the resistive current (AC-3 duty for motors)
Check the coil voltage and frequency available in the panel: 24 V DC, 110 V, 230 V or 400 V AC
Confirm the auxiliary contact count needed for the control and indication circuit
Match the enclosure rating to the environment (IP20 inside a panel, IP65 on the machine)

Specifications

Introduction
　　LW26 series rotary switches are suitable for: on-off of an electrical circuit, change-over of electrical circuits, motor switch, instrument switch, and main switch.
LW26 series rotary switches comply with: GB 14048.3, GB 14048.5, and IEC 60947-5-1.
LW26 series rotary switches have six current ratings: 10A, 20A, 25A, 32A, 63A, 125A, and 160A. LW26-20 and LW26-25 has the fingerproof terminals, which offered an extra advantage.

Designation
Use as control switches

Re: Character code represent the rotating type, for instance, we have limited movement, spring return and limited movement with spring return.

Use as motor switch

Re: switches in this category normally rotate at 60°. And the SN normally rotate at 45°

Use as control switch for a main circuit

Re: switches in this category normally rotate at 60°

Diagram for the operation and position of handle

Technical parameters

Escutcheon plate 　　　　　　　
　　　　　　　　　　　　　　　　　
Re:●Standard，●Optional.

Type of handle

Dimensions and installation

Description	Escutcheon plate	Dimensions (mm)	Installation (mm)
A	B	C	L	a	b	d1	d2
LW26-10	M0 square	30	30	28	26.5+12n		Φ8	Φ3.2
LW26-20	M1 square	48	48	43	22+9.6n	36	36	Φ8.5	Φ4.5
LW26-25	M1 square with rectangle plate added	48	60	43	22+9.6n	36	36	Φ8.5	Φ4.5
M2 square	64	64	43	25+9.6n	48	48	Φ10	Φ4.5
M2 square with rectangle plate added	64	80	43	25+9.6n	48	48	Φ10	Φ4.5
M1 square	48	48	45.2	23+12.8n	36	36	Φ8.5	Φ4.5
LW26-32	M1 square with rectangle plate added	48	60	45.2	23+12.8n	36	36	Φ8.5	Φ4.5
M2 square	64	64	45.2	26.5+12.8n	48	48	Φ10	Φ4.5
M2 square with rectangle plate added	64	80	45.2	26.5+12.8n	48	48	Φ10	Φ4.5
LW26-63	M2 square	64	64	58	29.2+12.8n	48	48	Φ10	Φ4.5
M2 square with rectangle plate added	64	80	58	29.2+12.8n	48	48	Φ10	Φ4.5
M2 square	64	64	66	29.2+21.5n	48	48	Φ10	Φ4.5
M2 square with rectangle plate added	64	80	66	29.2+21.5n	48	48	Φ10	Φ4.5
LW26-125	M3 square	88	88	66	29.2+21.5n	68	68	Φ10	Φ4.5
M3 square with rectangle plate added	88	107	66	29.2+21.5n	68	68	Φ10	Φ4.5
M3 square	88	88	84	35+26.5n	68	68	Φ13	Φ
LW26-160	M3 square with rectangle plate added	88	107	84	35+26.5n	68	68	Φ13	Φ6
M3 square	88	88	88	35+32.5n	68	68	Φ13	Φ6
M3 square with rectangle plate added	88	107	88	35+32.5n	68	68	Φ13	Φ6

Re: n for number of layers.

LW26-20 Round escutcheon plate

LW26-10 front installation、hole installation

Frequently asked questions about the LW26 Rotary Switch

What is the difference between a contactor and a relay?

A contactor is built for switching power circuits repeatedly at high current, often with motor duty ratings (AC-3) and arc-suppressing chambers. A relay switches control signals at low current. In practice: contactor for the motor, relay in the control circuit that drives the contactor coil.

How do I calculate the correct contactor size for a motor?

Use the motor's full-load current, apply the AC-3 rating for the operating voltage, and allow for the number of starts per hour. As a rule of thumb, the contactor's AC-3 rating should be at least equal to the motor FLC, then step up one frame if the duty is heavy.

Do you supply the coil voltage I need?

Coil voltages are specified per order. Send the model number, coil voltage and frequency you require and we will confirm availability and lead time.

Are auxiliary contacts included?

Base models come with the standard auxiliary contact configuration for that frame. Add-on auxiliary blocks and mechanical interlocks can be quoted with the contactor.