ABB MS132-25 Technical Specifications
Model: ABB MS132-25
Product Type: Rotary Motor Protection Circuit Breaker (MPCB) Adjustable Current Range: 20A～25A (continuously and precisely adjustable via rotary knob)
Applicable Motor Power: 400V 3-phase 11kW industrial motor
Number of Poles: 3P
Rated Operational Voltage: 690V AC
Rated Insulation Voltage: 690V
Rated Frequency: 50/60Hz
Trip Type: Thermal-magnetic trip, Class 10A
Rated Service Short-circuit Breaking Capacity Ics at 400V: 50kA Mounting: Standard 35mm DIN rail mounting
Protection Class: IP20
Operation Mode: Manual rotary knob operation with clear status indication
Ambient Operating Temperature: -25℃ ~ +55℃
What is ABB MS132-25?
The ABB MS132-25 is an industrial-grade Motor Protection Circuit Breaker, short for MPCB. It is commonly installed in three-phase motor control circuits and monitors operating conditions via thermal-magnetic trip technology:
● Thermal trip activates under sustained overload to prevent overheating damage to motors;
● Magnetic trip cuts off the circuit instantly when a short circuit occurs;
● Protection triggers under unbalanced three-phase current (phase loss), lowering the risk of winding burnout.
Simply put, the ABB MS132-25 acts as an all-in-one protective device to keep motors running reliably.
Features of ABB MS132-25
Precise current adjustment: Continuously adjustable from 20A–25A, perfectly suited for 400V, 11kW industrial motors, effectively preventing nuisance tripping and insufficient protection.
50kA high breaking performance: Built on the MS132 high-breaking platform, it achieves 50kA short-circuit breaking capacity at 400V, ideal for industrial sites with complex power grids and high short-circuit risks.
Robust for industrial conditions: Equipped with temperature compensation and flame-retardant housing, ensuring stable long-term operation in high/low-temperature and dusty workshops.
Safe maintenance design: Clear visible knob positions, lockable at OFF position to fully isolate power and avoid accidental operation during servicing.
Optional Accessories
Various attachments are available for the MS132-25 to expand functions as needed:
Auxiliary contacts & alarm contacts: Output equipment status and fault signals
Shunt releases & undervoltage releases: Enable remote tripping and loss-of-voltage protection
Handle lock attachment: Lockable at OFF position for safe isolation during maintenance
Connecting busbars to streamline internal cabinet wiring
Installation & Reset Guide
The unit clips onto standard 35mm DIN rails for easy mounting and removal, compatible with most control cabinets.
If tripping occurs due to overload, short circuit or phase loss, replacement is not necessary. Troubleshoot faults on motors and circuits first, wait for internal bimetallic elements to cool fully, turn the knob to OFF for reset, and switch on only after all issues are cleared.
Fit the lock attachment to secure the handle during maintenance and prevent accidental switch-on hazards.
Aftersales Support
Quantity available: In stock.
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Warranty: 12 months.
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Lead time: Shipment within 3-5 working days.
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Terms of payment: T/T. RMB (CNY) support.
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Courier partners: FedEx, DHL, UPS, TNT, EMS, SF express.
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FAQ
Q1: What size motor is the ABB MS132-25 suitable for?
A1: It features an adjustable current range of 20–25A, designed for 400V three-phase 11kW industrial motors. It can also be used with single-phase motors within the same current range.
Q2: Can the MS132-25 switch motors on and off frequently?
A2: Frequent load switching via this device is not recommended. Use an AC contactor for regular start-stop control, while the MS132-25 takes charge of overload and short-circuit protection to extend service life.
Q3: Why cannot the MS132-25 be closed after tripping?
A3: In most cases, the fault remains unresolved or internal components have not cooled down for reset. Check for short circuits, overloads and phase loss, power off and let the unit cool, turn the knob back to OFF to reset, then close it only after all faults are eliminated.
Q4: How can I place an order or apply for bulk purchase discounts?
A4: Send your required order quantity via email to Irene8866@163.com, or leave us a message on WhatsApp (+86 18950163907). We will reply within 24 hours with formal quotation and stock confirmation.
For more product information, please contact our professional sales team to obtain the latest pricing and stock information for the ABB MS132-25!
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