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Datasheet generated 2026-10-07
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Switch-disconnector DMM-125/1

Eaton · Switchgear & Protection · Disconnect Switches · Ireland · eaton.com
Part Number
DMM-125/1  ·  HS 8536.50
Switch-disconnector DMM-125/1

Eaton DMM-125/1 Switch-Disconnector, DMM, 125 A, 3P + N (solid), with black rotary handle and drive shaft,.

Technical Specifications

Manufacturer part number (MPN)DMM-125/1
EAN / GTIN8711426684652
Sales unitpcs
Package quantity48 pcs
Eaton catalogue number1314210
Depth152 mm
Height108 mm
Width132 mm
Weight0.916 kg
CertificationsLloyds; KEMA; RoHS; VDE 0660; CE; IEC/EN 60947; IEC/EN 60947-3; IEC/EN 60204; EAC
Ambient operating temperature - max55 °C
Ambient storage temperature - max80 °C
Ambient operating temperature - min-25 °C
Ambient storage temperature - min-30 °C
Number of auxiliary contacts (change-over contacts)0
Number of auxiliary contacts (normally closed contacts)0
Number of auxiliary contacts (normally open contacts)0
Heat dissipation per pole, current-dependent Pvid4.5 W
Rated operational current for specified heat dissipation (In)125 A
Rated breaking capacity at 400/415 V (cos phi to IEC 60947-3)480 A
Rated breaking capacity at 500 V (cos phi to IEC 60947-3)520 A
Rated breaking capacity at 660/690 V (cos phi to IEC 60947-3)352 A
Rated insulation voltage (Ui)1000 V
Rated operational current (Ie) at AC-21, 400 V, 415 V125 A
Rated operational current (Ie) at AC-21, 500 V125 A
Rated operational current (Ie) at AC-21, 690 V125 A
Rated operational current (Ie) at AC-22, 380 V, 400 V, 415 V125 A
Rated operational current (Ie) at AC-22, 500 V125 A
Rated operational current (Ie) at AC-22, 690 V125 A
Rated operational current (Ie) at AC-23A, 400 V, 415 V63 A
Rated operational current (Ie) at AC-23A, 500 V63 A
Rated operational current (Ie) at AC-23A, 690 V45 A
Rated operational power at AC-23A, 400 V, 50 Hz30 kW
Rated operational power at AC-23A, 500 V, 50 Hz45 kW
Rated operational power at AC-23A, 690 V, 50 Hz40 kW
Rated operational voltage (Ue) at AC - max690 V
Rated uninterrupted current (Iu)125 A
Uninterrupted currentRated uninterrupted current Iu is specified for max. cross-section.
FeaturesVersion as main switch; Version as maintenance-/service switch
Fitted withBlack rotary handle and drive shaft
Locking facilityLockable in the 0 (Off) position
Number of polesThree-pole
AccessoriesAuxiliary contact fitted by user.
Actuator colorBlack
Actuator typeShort thumb-grip
Connection typeVertical
Degree of protectionNEMA Other
Degree of protection (front side)IP20
Lifespan, mechanical10,000 Operations
Mounting methodSurface mounting
Mounting positionAs required
Overvoltage categoryIII
Pollution degree3
Product CategoryMain switch Switch-disconnector
Rated impulse withstand voltage (Uimp)6000 V
Safety parameter (EN ISO 13849-1)B10d values as per EN ISO 13849-1, table C.1
Suitable forGround mounting; Distribution board installation
Breaking current14.5 kA
Light-through energyMax. 140 kA²s
Rated conditional short-circuit current (Iq)50 kA
Rated short-time withstand current (Icw)2.5 kA; 2,5 kA, Contacts, 1 second
Short-circuit protection rating125, Fuse, Contacts
Stripping length (main cable)21 mm
Terminal capacity6 - 70 mm², flexible with ferrules to DIN 46228
Tightening torque7 Nm, Screw terminals
Country of originUnited Kingdom

Properties

MOQ1

Cross-References

Attached Documents