ABB Manual Motor Starters

A manual motor starter combines short-circuit protection, adjustable overload protection and a manual on/off switch in one compact device — the ABB equivalent of a motor protection circuit breaker. MS116 covers small motors, MS132 and MS165 step up in current, and MO versions provide magnetic-only protection for use with a separate overload device.

MS Manual Motor Starters we supply

• ABB AA1-110 Shunt Trip
• ABB AA1-230 Shunt Trip
• ABB AA1-24 Shunt Trip
• ABB AA1-400 — Motor Starter Accessory
• ABB AA4-110 — Motor Starter Accessory
• ABB AA4-230 — Motor Starter Accessory
• ABB AA4-24 — Motor Starter Accessory
• ABB AA4-400 — Motor Starter Accessory
• ABB CK1-02 — Motor Starter Accessory
• ABB CK1-11 — Motor Starter Accessory
• ABB CK1-20 — Motor Starter Accessory
• ABB DX495 — Motor Starter Accessory
• ABB FS116 — Motor Starter Accessory
• ABB HK1-02 — Motor Starter Accessory
• ABB HK1-11 — Motor Starter Accessory
• ABB HK1-20L — Motor Starter Accessory
• ABB HK1-20 — Motor Starter Accessory
• ABB HK4-11 — Motor Starter Accessory
• ABB HKF1-11 — Motor Starter Accessory
• ABB HKF1-20 — Motor Starter Accessory
• ABB HKS4-02 — Motor Starter Accessory
• ABB HKS4-11 — Motor Starter Accessory
• ABB HKS4-20 — Motor Starter Accessory
• ABB KA450 — Motor Starter Accessory
• ABB KA495 — Motor Starter Accessory
• ABB MO132-0.16 — Magnetic-only Manual Motor Starter
• ABB MO132-0.25 — Magnetic-only Manual Motor Starter
• ABB MO132-0.4 — Magnetic-only Manual Motor Starter
• ABB MO132-0.63 — Magnetic-only Manual Motor Starter
• ABB MO132-1.0 — Magnetic-only Manual Motor Starter
• ABB MO132-10 — Magnetic-only Manual Motor Starter
• ABB MO132-12 — Magnetic-only Manual Motor Starter
• ABB MO132-1.6 — Magnetic-only Manual Motor Starter
• ABB MO132-16 — Magnetic-only Manual Motor Starter
• ABB MO132-20 — Magnetic-only Manual Motor Starter
• ABB MO132-2.5 — Magnetic-only Manual Motor Starter
• ABB MO132-25 — Magnetic-only Manual Motor Starter
• ABB MO132-32 — Magnetic-only Manual Motor Starter
• ABB MO132-4.0 — Magnetic-only Manual Motor Starter
• ABB MO132-6.3 — Magnetic-only Manual Motor Starter
• ABB MO450-40 — Magnetic-only Manual Motor Starter
• ABB MO450-45 — Magnetic-only Manual Motor Starter
• ABB MO450-50 — Magnetic-only Manual Motor Starter
• ABB MO495-100 — Magnetic-only Manual Motor Starter
• ABB MO495-63 — Magnetic-only Manual Motor Starter
• ABB MO495-75 — Magnetic-only Manual Motor Starter
• ABB MO495-90 — Magnetic-only Manual Motor Starter
• ABB MO496-100 — Magnetic-only Manual Motor Starter

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What to check before ordering

• Order by the current-setting range that brackets your motor's full-load current, not by kW alone.
• MS (thermal-magnetic) and MO (magnetic only) are different devices — MO provides no overload protection on its own.
• Auxiliary contacts, signal contacts and undervoltage releases are separate accessories that add width.
• Check whether a link kit is needed to connect the starter to a downstream contactor.

Frequently asked questions

What is the difference between MS132 and MO132?

MS132 is thermal-magnetic: it protects against both overload and short circuit. MO132 is magnetic-only, giving short-circuit protection alone, and is used where a drive, softstarter or separate overload relay handles thermal protection.

Can a manual motor starter replace an MCB on a motor circuit?

For a motor branch it is usually the better device — its thermal element is matched to motor heating and its magnetic trip tolerates starting inrush, which a general-purpose MCB curve is not designed for.

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