CBMControls & Actuators

CBM Pressure switch motor control B70A

CBM B70A is a pressure switch motor control for pneumatic and hydraulic systems, rated to 3.5 bar maximum with adjustable differential of +0.8 to +1.8 bar. The IP40-protected unit operates across -15 to 60°C and…

SKU 3G-CBM-03579

Also listed as: FAN 04262 · FAN-04262

Brand

CBM

Item

Pressure switch motor control B70A

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Delivery: Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to: Singapore

Technical Specifications

CBM

connection

G 1/4 

differential bar

+0.8 to +1.8 

max pressure bar

3.5

protection degree

IP40 

pressure range bar

0.5 - 7 

storage temperature C

-35 to 60 

operating temperature C

-15 to 60 

Datasheet Content

3G-CBM-03579
Pressure switches for three-phase motors direct control

Pressurecontrolssuitableto controldirectlythe electricmotors of the pumps, compressors, domestic or industrial
autoclaves groups. Suitable as well for fluids (gas or liquids) chemically compatible with the friction diaphragm.




                                                                          86




                                                                                            105                      58




                         Range                Differential        Sensitive element               Connection   Protection
                                     range beginning range ending  max. pressure                     G/14       degree
                           bar                    bar                    bar			
B70A	                    0,5 ÷ 7               +0,8      +1,8                   +3,5                 12          IP40
1 Bar = 100Kpa *The differential must be deducted from the range value.




ELECTRICAL FEATURES
Double breaking switch for each pole, contacts in silver alloy.

                                                                               EXAMPLE OF ELECTRICAL WIRING
                                   Contacts are ope-
                                   ning when pressure
                                   increases




                                   In case of single-phase
                                   motors just two poles
                                   are connected




Nominal insulation tension		       Ui 415V~                                               THREE-PHASE          SINGLE-PHASE
Continuous duty nominal current Ith 25A                                                   MOTOR                moTOR
Operating nominal current in 	AC-1          le 20A
Operating nominal current in 	AC-3          le 9A
Powers controlled by the three-phase motors in AC3:
                           220/250V                380/415V~
                           2,2kW/(3HP)       4kW/(5,5HP)




HOMOLOGATION AND STANDARDS
Complies with EN 60947-4-1 standards.
INSTALLATION
Direct installation on the pipe.




OPERATION
Contacts are opening when pressure rises.
Three-pole contact alows the control of single-phase or three-phase motors up to 9A, without contactor.


Pressure differential
                                        Pressure regulation at    8
regulation at
                                        connection: pressure
disconnection                                                     7
                                        value rises on screwing
                                                                  6
                                                                                                           Pressure at disconnection
                                                                  5                                        (contacts opening)
                                                                  4
                                                                  3                                        Pressure at connection
                                                                  2                                        (contacts closing)

                                                                  1


                                                                  * EXAMPLE: Pressure at connection 3,5 bar
                                                                             Pressure at disconnection 4,5 bar


FEATURES
Sensitive element with friction membrane.
Adjustable differential.
Female connection G 1/4.
Cover in shockproof thermoplastic material.
Metallic parts are in stainless steel.
Earth clamp.
Output connections with two cable glands.
Maximum temperature of the controlled fluid: 90°C.
Pressure switch body admissible temperature: -15 ÷ 60°C.
Storage and transport temperature: -35 ÷ 60°C.
Unit weight: 0,39 Kg.

Technical Documents

(1)

Technical Document 1

PDF Document

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the CBM B70A pressure switch used for?

The CBM B70A pressure switch motor control directly controls three-phase or single-phase motors in pneumatic and hydraulic systems. It is suitable for pumps, compressors, and autoclave groups in industrial automation and process control applications, handling fluids chemically compatible with its friction diaphragm.

What are the specifications of the CBM B70A pressure switch?

The CBM B70A has a pressure range of 0.5 to 7 bar, maximum pressure 3.5 bar, and adjustable differential +0.8 to +1.8 bar. It features a G 1/4 connection, IP40 protection, operating temperature -15 to 60°C, and electrical ratings up to 415V~, 25A continuous, controlling motors up to 4 kW at 380-415V.

Where to buy the CBM B70A pressure switch in Singapore?

You can source the CBM B70A pressure switch motor control through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this industrial pressure switch for pneumatic and hydraulic systems.

How to install the CBM B70A pressure switch?

Install the CBM B70A directly on the pipe using the G 1/4 female connection. Ensure the controlled fluid temperature does not exceed 90°C and the body stays within -15 to 60°C. Wire the three-pole switch according to the diagram: contacts open when pressure rises. Use cable glands for output connections.

Used in

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Pump and motor assembly — CBM couplings, fittings, and cable glands for assembly and rewinding of industrial motors, circulation pumps, and auxiliary equipment.

CBM Products

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