Eaton TX series cam switch and PX series load isolation switch

Eaton TX Cam Switch and PX Load Isolation Switch Complete Technical Guide

Introduction: Core components of industrial electrical control

In industrial electrical control systems, cam switches and load isolation switches serve as manually operated control and isolation components, responsible for key functions such as circuit on/off, equipment switching, and safety isolation. As a global leader in power management, Eaton's TX series cam switches and PX series load isolation switches are widely used in mechanical manufacturing, building electrical, industrial automation, and other fields due to their excellent performance, reliable quality, and flexible combination methods.

This article is based on Eaton's official Chinese product catalog, providing a comprehensive analysis of the technical characteristics, model composition, installation methods, accessory selection, and application points of TX cam switches and PX load isolation switches. It provides a professional and detailed technical reference for electrical engineers, system integrators, and equipment maintenance personnel.

Chapter 1 Overview of Product Series

1.1 Product positioning and certification

The TX cam switch and PX load isolation switch are electrical control products designed by Eaton specifically for industrial, handicraft, and building service management. Both series share the following common characteristics:

Front panel protection level: IP65, suitable for harsh environments such as high dust and humidity

International certifications: CCC (China Compulsory Certification), CE (European Union Safety Certification)

Modular design: Flexible combination of contact modules and installation accessories according to requirements

Environmentally friendly materials: free of PCB, CFC, asbestos, and silicon, and the contacts do not contain cadmium

1.2 Product Series Comparison

Series Type Power Range Current Range Main Applications

TX cam switch to 55kW to 100A control circuit, instrument selection, stepper control

PX load isolation switch to 55kW to 175A main switch, maintenance switch, safety isolation

1.3 Basic switch types

Two series offer a total of ten basic switch types, covering the vast majority of application scenarios:

Main switch/maintenance switch/forced manual control switch

on-off switch

changeover switch

turn signal switch

Multi speed switch

Step switch

Control switch (on/off/switch/manual automatic/on)

General control switch

Instrument selection switch

Safety switch with interlock function

Chapter 2 Detailed Analysis of TX Cam Switch

2.1 Overview of Technical Specifications

The TX series cam switch is divided into multiple sub series based on current capacity:

Model Rated continuous current (Iu) Maximum number of contact modules Single contact depth Mechanical life (10000 cycles)

T0X 20 A up to 11 pieces 9.5 mm 40

T3X 32 A up to 11 11.5 mm 40

T5XB 63 A up to 10 16.5 mm 40

T5X 100 A up to 10 16.5 mm 40

2.2 Electrical Performance Parameters

T0X cam switch

Rated connection capacity (cos φ=0.35): 130 A

Rated breaking capacity (motor load):

230 V：100 A

400 V：110 A

500 V：80 A

690 V：60 A

Motor power (AC-23A load):

230 V：4 kW

400/415 V：6.5 kW

500 V：6.5 kW

690 V：4 kW

T3X cam switch

Rated connection capacity (cos φ=0.35): 320 A

Rated breaking capacity (motor load):

230 V：400 A

400 V：500 A

500 V：450 A

690 V：250 A

Motor power (AC-23A load):

230 V：7.5 kW

400/415 V：13 kW

500 V：13 kW

690 V：11 kW

T5XB/T5X cam switch

Rated connection capacity (cos φ=0.35):

T5XB：800 A

T5X：950 A

Motor power (AC-23A load, 400/415 V):

T5XB：22 kW

T5X：30 kW

2.3 DC application parameters

For DC-23A load (L/R=15ms):

T0X cam switch

24 V: 6 A (1 contact module)

48 V: 4 A (2 contact modules in series)

60 V: 3 A (3 contact modules in series)

120 V: 2 A (3 contact modules in series)

240 V: 1 A (5 contact modules in series)

T3X cam switch

24 V: 16 A (1 contact module)

48 V: 10A (2 contact modules in series)

60 V: 8 A (3 contact modules in series)

120 V: 4 A (4 contact modules in series)

240 V: 2 A (6 contact modules in series)

Chapter 3 Detailed Analysis of PX Load Isolation Switch

3.1 Overview of Technical Specifications

The PX series load isolation switch is divided into multiple sub series based on current capacity:

Model Rated continuous current (Iu) Maximum power (AC-23A, 400V) Mechanical life (10000 cycles)

P1X-25 25 A 7.5 kW 10

P1X-32 32 A 13 kW 10

P3X-63 63 A 22 kW 3

P3X-100 100 A 30 kW 3

P5X-125 125 A 45 kW 3

P5X-175 175 A 55 kW 3

3.2 Electrical Performance Parameters

P1X series (25A/32A)

Rated working voltage: 690 VAC

Rated impulse withstand voltage: 6000 VAC

Overvoltage category/pollution level: III/3

Short circuit rating (fuse):

P1X-25：25 A gG/gL

P1X-32：50 A gG/gL

Rated short-time withstand current (1 second): 640 A rms

Wiring capacity: 1 × (1.5-6) mm ² or 2 × (1.5-6) mm ²

Tightening torque of wiring screw: 1.6 Nm

P3X series (63A/100A)

Rated working voltage: 690 VAC

Rated impulse withstand voltage: 6000 VAC

Short circuit rating (fuse):

P3X-63：80 A gG/gL

P3X-100：100 A gG/gL

Rated short-time withstand current (1 second): 1300 A rms

Wiring capacity: 2 × (1.5-6) mm ²

P5X series (125A/175A)

Rated working voltage: 690 VAC

Rated impulse withstand voltage: 8000 VAC

Short circuit rating (fuse):

P5X-125：125 A gG/gL

P5X-175：160 A gG/gL

Rated short-time withstand current (1 second): 1125 A rms

Wiring capability: 50-70 mm ² solid wire, or copper strip connection (6 × 9 × 0.8 mm)

3.3 Breaking ability

P5X-125

AC-21A load switch, 440V: 125 A

Motor power (AC-3 load):

230 V：22 kW

400 V：37 kW

690 V：30 kW

Motor power (AC-23A load):

230 V：30 kW

400 V：45 kW

690 V：37 kW

P5X-175

AC-21A load switch, 440V: 160 A

Motor power (AC-3 load):

230 V：30 kW

400 V：45 kW

690 V：37 kW

Motor power (AC-23A load):

230 V：30 kW

400 V：55 kW

690 V：37 kW

3.4 DC application parameters

P5X series (DC-23A load, L/R=15ms）

125A model:

24 V: 125 A (3 contact modules in series)

48 V: 125 A (3 contact modules in series)

60 V: 125 A (3 contact modules in series)

120 V: 40 A (3 contact modules in series)

Model 175A:

24 V: 160 A (3 contact modules in series)

48 V: 160 A (3 contact modules in series)

60 V: 160 A (3 contact modules in series)

120 V: 50 A (3 contact modules in series)

Chapter 4 System Composition and Selection Guide

4.1 Modular System

The TX cam switch and PX load isolation switch adopt modular design, consisting of the following basic components:

Joystick: Provides multiple colors and function options

Switch unit: core on-off component

Contact module: Each module contains 1 or 2 contacts

Install attachments: Implement different installation methods

Emblem: Identify the position and function of the switch

4.2 Installation method

According to application requirements, the following installation methods can be selected:

Characteristics of installation method code

Flat installation.../E front IP65, rear installation and wiring

Center installation.../EZ front IP65, single hole diameter 22.3 installation, card fixed

Rear installation.../Z front IP65, installed from the rear

Surface mount.../11,.../12 front IP65, connected from the front

Installation of distribution cabinet.../IVS installed on the distribution cabinet, depth 45mm

Control screen installation.../VS installed on the control screen

4.3 Flat installation type main switch

Special design for main switch, maintenance switch, and safety isolation:

Model code: ../EA/SVB (flat installation),.../V/SVB (rear installation)

Emblem: Standard FS908 with 0-position padlock function

Handle color:

Red/Yellow: with emergency stop function, compliant with IEC/EN 60204-1

Black/Black: No emergency stop function

Padlock function: Up to 3 padlocks can be added to 0 positions

4.4 Contact module configuration

The contact number of the switch is defined by the standard configuration table and can be selected as needed:

T0X: Up to 11 contact modules (22 contacts), with a single module depth of 9.5mm

T3X: Up to 11 contact modules (22 contacts), with a single module depth of 11.5mm

T5X (B): Up to 10 contact modules (20 contacts), with a single module depth of 16.5mm

P1X/P3X: up to 3 poles+N poles

4.5 Customization of non-standard switches

For applications where standard contact sequences cannot be met, Eaton provides customized non-standard switch services:

Initial customization: The "Cam Switch Customization Model Initial Order Customization Form" (F02 Form) needs to be filled out

Reorder: simply specify the contact number and country identifier (e.g. 4711D)

Customized models: T0X/T3X/T5XB/T5X all have corresponding customized models, and the order number is marked with "- SONG *"

Chapter 5 Detailed Explanation of Main Function Types

5.1 Main switch, maintenance switch/forced manual control switch

Function: As the main power switch of the device, it is used for safety isolation and emergency disconnection.

Features:

Compliant with IEC/EN 60204 and IEC/EN 60947-3 standards

Definitely disconnect the contact, the operating element is rigidly fixed to the spindle

Optional red/yellow handle with emergency stop function

0-position can be equipped with a padlock, which meets the safety requirements of Lock/Tag Out (LOTO)

Typical model:

T0X-1-8200/11/SVB (1-pole, with padlock)

P1X-25/12/SVB (25A, with padlock)

P3X-63/14/SVB (63A, with padlock)

5.2 on-off switch

Function: Used for circuit connection and disconnection, can serve as a main switch or control switch.

Features:

Multiple configurations including 2-pole, 3-pole, 4-pole, etc

Optional with 0 bits or direct on/off

Suitable for load types such as AC-21A and AC-23A

Typical model:

T0X-3-8342/11 (3-pole on-off switch)

T3X-3-8342/12 (3-pole on-off switch)

5.3 Conversion switch

Function: Implement power or load switching, such as switching between primary and backup power sources, star delta startup, etc.

Features:

Switch with 0-position (I-0-II)

Switch without 0 position (I-II)

Can be configured for manual automatic conversion

Typical model:

T0X-1-8210/E (1-pole toggle switch)

T3X-2-8211/12 (2-pole conversion switch)

T0X-3-8212/E (3-pole conversion switch)

5.4 Steering switch

Function: Used for forward and reverse control of electric motors.

Features:

Reversing switch with 0 position (positive 0 reverse)

Directly control the direction of the electric motor

Suitable for lifting, conveying and other equipment

Typical model:

T0X-2-8400/EZ (2-pole reversing switch)

T3X-3-8401/12 (3-pole reversing switch)

5.5 Multi speed switch

Function: Used for speed switching of multi speed motors.

Features:

2-speed non commutation (for 2 separate windings)

Used for multi tap windings

Can achieve multi-level speed control

Typical model:

T0X-3-8451/EZ (3-pole multi speed switch)

T3X-4-8440/12 (4-pole multi speed switch)

5.6 Step switch

Function: Used for gradually switching circuits, such as heater grading control.

Features:

Multi position step control

Connect different numbers of contacts at each position

Suitable for temperature control, power regulation, etc

Typical model:

T0X-1-15401/11 (1-pole stepper switch)

T0X-2-15403/IVS (2-pole stepper switch)

5.7 Control switch

Function: Used to control various operations of the circuit, including on-off, switching, manual automatic switching, etc.

Type:

On-off switch: simple ON/OFF control

Conversion switch: I-0-II or I-II conversion

Manual/Automatic Switch: Switch between manual and automatic modes

Turn on switch: jog operation

Typical model:

T0X-1-15321/11 (Turn on switch)

T0X-2-8177/11 (control switch)

5.8 General control switch

Function: Multi functional control switch, can be configured with multiple contact combinations.

Features:

Self locking 3-digit switch

Connect 3 contacts at positions 0 and 1

Connect 3 contacts at positions 0 and 2

Connect 3 contacts at positions 1 and 2

Spring reset function is optional

Typical model:

T0X-3-15391/11 (3-digit universal control switch)

5.9 Instrument selection switch

Function: Used to select different measuring instruments or measuring points.

Features:

Multiple options, such as V1-V2-V3

Suitable for switching between voltmeters and ammeters

Ensure safe isolation of the measurement circuit

Typical model:

T0X-1-15113/E (instrument selection switch)

Chapter 6 Attachments and Extended Functions

6.1 N-pole module and auxiliary contact module

N-pole module (N-P1X/N-P3X)

Function: N-pole contact for early closure and delayed disconnection

Installation position: can be installed on the left or right side

Breaking capacity: the same as the main contact

Order number: N-P1XE (for P1X flat installation), N-P1XZ (for P1X rear installation)

Auxiliary contact module (H11-P1X/P3)

Contact configuration: 1 normally open+1 normally closed

Function: Delay breaking, delay closing, N/O contacts are usually used for load shedding

Installation position: can be installed on the left or right side

Order number: H11-P1X/P3E (for flush installation), H11-P1X/P3Z (for rear installation)

6.2 Installation Accessories

Central installation accessories (EZ-T0X)

Used for single hole installation with a diameter of 22.3mm

Equipped with a buckle system for quick installation

Suitable for T0X/T3X flush mounted switches

Installation accessories for distribution cabinet (IVS-TOX)

Including crimping shaft, used for installation and renovation of distribution cabinets

Use the basic switch front panel

Connectors (DE-TOX/DE-P3X)

Used to convert flat installation to rear installation

Suitable for T0X/T3X/P1X/P3X

6.3 Interlocking mechanism and extension rod

Interlocking mechanism (UV-TOX/UV-P3X)

Connected with PE and neutral wire

When installed flush, it is installed at the rear of the switch

Installed at the front of the switch during rear installation

Implement door interlocking function

Interlocking extension device (ZW-TOX/ZW-P3X)

Up to 4 units can be plugged in

Each 25mm, totaling 100mm

Used to extend interlocking distance

Extension rod (ZAV-TOX/ZAV-P3X)

Up to 4 units can be installed

Each 25mm, totaling 100mm

Suitable for rear mounted switches

6.4 Shield and Key

Shield (H3-TOX/H1-T5X/H2-T5X)

Used for flush mounted switches

H3-TOX: Up to 8 contacts, cable entry holes 2 × 20mm+2 × 15mm

H1-T5X: Basic Shield

H2-T5X: Expansion shield for 6-16 contacts

Lock buckle (HZ-T5X)

Each contact requires one

Suitable for input and/or output wiring

Key (VR-TOX)

Used for changing the engagement position of key extraction in the later stage

Suitable for all switch angles

6.5 Emblem and Front Panel

Standard Emblem (FS908)

Size: 88 × 88mm

88 × 88 framework suitable for P3X, T5X, T5XB

Order number: FS908GE-P3X

Blank engraved emblem

FS-ALU980-TOX: Aluminum, used for T0X

FS (*) - TOX: Plastic, used for T0X

BS84X24-P3X: Insertion Emblem

Card holder (ZF5X-TOX)

Black, detachable

Used for inserting signage

Insert signboard (BS45X14-TOX)

Size: 45 × 14mm

Engravable text

6.6 Insulated distribution box

IP65 insulated distribution box (CI-K1-TOX)

1-2 contact modules: CI-K1-TOX-2

3-4 contact modules: CI-K1-TOX-4

With diaphragm and cable port

1 contact module=2 contacts

Chapter 7 Dimensions and Installation Points

7.1 Flat Installation (.../E)

T0X/T3X flush installation

Door opening size: depends on the number of contact modules

Installation depth: increases with the number of contacts

Can be equipped with H3-TOX protective cover

T5X (B) flat installation

Door opening size: 88 × 88mm

Installation depth: depends on the number of contacts (c2 size)

Flat installation type main switch with SVB: adding padlock function

7.2 Rear Installation (.../Z)

feature

Installation hole with a diameter of 22.3

Can be extended with interlocking long poles, up to a maximum of 4 × 25=100mm

Can be extended with an extension rod, up to 4 × 25=100mm

Size Table (T0X)

Model, number of contacts, installation depth (c20), maximum depth (≤ 4 ZAV)

T0X-1 2 41 mm 86~102 mm

T0X-3 6 60 mm 105~121 mm

T0X-6 12 88 mm 134~150 mm

T0X-8 16 107 mm 153~169 mm

7.3 Surface Installation (.../11,.../12)

T0X surface installation

Base opening size: varies with model

Total depth: including handle and wiring

T3X surface installation (model c25 size)

T3X-1.../2：80 mm

T3X-3.../2：100 mm

T3X-5.../2：145 mm

7.4 Size of PX load isolation switch

P1X/P3X flat installation

Width: P1X 49mm, P3X 72mm

Depth: P1X 86mm, P3X 102mm

P5X flat installation

Front frame size: 112 × 112 mm

Installation depth: ≥ 130 mm

Wiring capacity: 50-70mm ² cable or copper strip

Chapter 8 Technical Data and Selection Table

8.1 Selection Table for Main/Maintenance Switches

Model Pole Power (kW) AC-23A 400V Rated Continuous Current Order Number (with padlock)

T0X-1-8200/11/SVB 1 6.5 20 A CPD05900

T3X-1-8200/12/SVB 1 13 32 A CPD06465

P1X-25/12/SVB 1 7.5 25 A CPD05650

P1X-32/12/SVB 1 13 32 A CPD05694

P3X-63/14/SVB 1 22 63 A CPD06886

8.2 Main switch with N pole

Model Description Order Number

P1X-25/12/SVB/N 25A main switch with N-pole CPD05652

P1X-32/12/SVB/N 32A main switch with N-pole CPD05696

P3X-63/14/SVB/N 63A main switch with N-pole CPD06888

8.3 Main switch with emergency stop function

Model Description Order Number

T0X-1-8200/11-RT T0X 1 pole, red handle emergency stop CPD05902

P1X-25/12-RT P1X 25A， Red handle emergency stop CPD05658

P1X-32/12-RT P1X 32A， Red handle emergency stop CPD05702

8.4 Conversion Switch Selection Table

Model, Number, Description, Order Number

T0X-1-8210/E 1 conversion switch I-0-II CPD05910

T3X-1-8210/12 1 Transfer Switch I-0-II CPD06472

T0X-2-8211/E 2 conversion switch I-0-II CPD06058

T3X-2-8211/12 2 Conversion Switch I-0-II CPD06486

T0X-3-8212/E 3 conversion switch I-0-II CPD06209

T3X-3-8212/12 3 Transfer Switch I-0-II CPD06525

8.5 Steering Switch Selection Table

Model, Number, Description, Order Number

T0X-2-8400/EZ 2 reversing switch -0- reverse CPD06101

T3X-2-8400/12 2 Reversing Switch Positive 0 Reverse CPD06495

T0X-3-8401/EZ 3 reversing switch positive 0 reverse CPD06268

T3X-3-8401/12 3 Reversing Switch Positive 0 Reverse CPD06548

8.6 Multi speed Switch Selection Table

Model, Number, Description, Order Number

T0X-3-8451/EZ 3 2-speed non reversing CPD06274

T3X-3-8451/12 3-speed non reversing CPD06552

T0X-4-8440/EZ 4 multi tap winding CPD06353

T3X-4-8440/12 4 multi tap winding CPD06596

Chapter 9 Application Precautions

9.1 Service life and load selection

There are significant differences in the service life of contacts based on the breaking current and usage category:

AC-21A (non inductive or slightly inductive load): longest service life

AC-23A (motor load): medium service life

AC-4 (inching, reverse braking): extreme load, shortest service life

To ensure a reasonable service life under AC-4 application, the static current of the motor should not exceed the rated operating current of the switch under AC-21A.

9.2 Installation environment requirements

Ambient temperature

Open installation: -25 ° C to+50 ° C

Closed installation: -25 ° C to+40 ° C (P5X: -25 ° C to+40 ° C)

Climate protection: Complies with IEC 60068-2-78 (Constant Damp Heat) and IEC 60068-2-30 (Alternating Damp Heat)

Installation location: Any

Mechanical impact resistance strength: 15g (half sine wave impact)

9.3 Safety isolation characteristics

Compliant with standard: IEC/EN 60947-3 (requirements for isolating switches)

Main switch characteristics: compliant with IEC/EN 60204

Definitely disconnect the contact: the operating element is rigidly fixed to the spindle

Safe insulation: compliant with EN 61140 and VDE 0106 Part 101

Switching angle between auxiliary contact and main circuit: 90 °