EATON XV-440-12TSB-1-10 Combination Motor Starter

Parameter Name
Parameter Value
Product Model
EATON XV-440-12TSB-1-10
Manufacturer
Eaton Corporation
Product Type
Combination Motor Starter (Disconnect + Contactor + Overload Relay in Enclosure)
Motor Rating
12 HP​ at a standard three-phase voltage (e.g., 230V AC or 460V AC). The exact FLA (Full Load Amps) depends on voltage.
Enclosure
NEMA Type 12 (TSB suffix)​ – Industrial use, dust-tight, drip-tight, oil-resistant. Constructed of sturdy steel or polycarbonate.
Disconnect
Integrated fusible disconnect switch​ or molded case circuit breaker (MCCB). Provides motor branch circuit short-circuit and fault protection, and a visible means of disconnection for safety lockout/tagout (LOTO).

 

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Description

Product Overview

The EATON XV-440-12TSB-1-10​ is a versatile and robust Combination Motor Starter​ from Eaton’s comprehensive motor control lineup. The model name decodes as: XV​ indicates the product family; 440​ specifies the series or design variant; 12​ denotes the horsepower (HP) rating​ (12 HP, approximately 9 kW); TSB​ defines the enclosure type, typically a NEMA Type 12​ heavy-duty industrial enclosure (dust-tight and drip-tight for indoor use); and -1-10​ specifies key options such as control voltage, heater element rating, and auxiliary contact configuration. This unit is an integrated assembly that combines a disconnect switch (or circuit breaker), a magnetic contactor, and a thermal overload relay​ into a single, factory-assembled, and tested enclosure. Its primary function is to provide a safe and reliable means to start, stop, and protect a three-phase AC induction motor, incorporating both short-circuit and overload protection in a compact, ready-to-install package.
The value of the EATON XV-440-12TSB-1-10​ lies in its simplicity, reliability, and all-in-one design for standard industrial applications. It eliminates the need for engineers and electricians to individually source, wire, and coordinate separate disconnect, contactor, and overload components. The factory assembly ensures correct compatibility and reduces installation time and wiring errors. The NEMA 12 enclosure provides robust protection against falling dirt, dust, dripping water, and light splashing, making it suitable for a wide range of indoor industrial environments such as machine shops, assembly lines, and pump rooms. For maintenance personnel, having the overload relay’s trip class and current setting matched to the motor’s nameplate data (as defined by the -1-10suffix) simplifies setup and ensures proper motor protection. This starter represents a cost-effective, dependable, and space-saving solution for controlling and protecting mid-sized motors in common industrial settings.

Technical Specifications

Parameter Name
Parameter Value
Product Model
EATON XV-440-12TSB-1-10
Manufacturer
Eaton Corporation
Product Type
Combination Motor Starter (Disconnect + Contactor + Overload Relay in Enclosure)
Motor Rating
12 HP​ at a standard three-phase voltage (e.g., 230V AC or 460V AC). The exact FLA (Full Load Amps) depends on voltage.
Enclosure
NEMA Type 12 (TSB suffix)​ – Industrial use, dust-tight, drip-tight, oil-resistant. Constructed of sturdy steel or polycarbonate.
Disconnect
Integrated fusible disconnect switch​ or molded case circuit breaker (MCCB). Provides motor branch circuit short-circuit and fault protection, and a visible means of disconnection for safety lockout/tagout (LOTO).
Contactor
Magnetic contactor​ with a coil voltage specified by the -1-10suffix (common options: 24V AC/DC, 120V AC, 240V AC). Rated for the motor’s HP and voltage.
Overload Relay
Bi-metallic thermal overload relay​ with heater elements​ selected for the motor’s full-load current (FLA). The specific heater element is part of the -1-10ordering code. Includes manual reset​ and phase loss protection.
Control Circuit
Includes terminals for standard 3-wire control​ (Start/Stop buttons with holding contact) and potentially 2-wire control. May include pilot light and auxiliary contacts for status feedback.
Terminations
Line and load terminals designed for easy wiring of power cables. Control terminals for external pushbuttons.
Standards & Certifications
cULus listed, CE marked, compliant with NEMA ICS 2 and IEC 60947-4-1 standards.

XV-440-10TVB-1-50

Key Features and Advantages

EATON XV-440-12TSB-1-10​ excels as a pre-engineered, robust motor control package. Its primary advantage is ease of installation and deployment. As a factory-assembled unit, it arrives ready to wire, significantly reducing field labor time and the potential for wiring errors between components. The integrated disconnect​ provides a safe, local means to isolate the motor for maintenance, complying with electrical safety standards (NFPA 70E, OSHA).
Durable protection and reliable operation​ are core to its design. The NEMA 12 enclosure​ safeguards the internal components from common industrial contaminants like dust, coolant, and oil mist, ensuring long-term reliability. The thermal overload relay​ provides reliable protection against motor overloads and phase loss by simulating the motor’s thermal characteristics. The manual reset feature prevents automatic restart after a trip, enhancing safety.
Flexibility and serviceability​ are practical benefits. The overload relay’s replaceable heater elements​ allow the same starter to be easily re-used for different motors within its HP range by simply changing the heater. The clear cover on the NEMA 12 enclosure often allows visual inspection of contactor position and overload status without opening the door. For maintenance, common spare parts like contactor coils and heater elements are readily available. In summary, the XV-440-12TSB-1-10​ offers a no-fuss, economical, and highly reliable solution for a vast number of standard motor control applications, reducing engineering overhead, installation cost, and maintenance complexity.

Application Areas

The EATON XV-440-12TSB-1-10​ is designed for controlling and protecting 12 HP three-phase motors in typical indoor industrial environments.
Typical applications include:
  • Machine Tools:​ Controlling lathes, mills, drills, and saws.
  • Material Handling:​ Operating conveyors, elevators, and small cranes.
  • HVAC Systems:​ Starting and stopping large fans, blowers, and pumps in mechanical rooms.
  • Industrial Pumps & Compressors:​ For water circulation, air compressors, and process pumps.
  • General Factory Automation:​ Any application requiring a reliable, standalone motor starter.
Essentially, it is the workhorse solution for any 12 HP motor application where environmental conditions are not extreme (not requiring corrosion resistance or hose-down capability) and where a traditional, robust thermal overload protection is sufficient.

Related Products

  • Three-Phase AC Induction Motor:​ The 12 HP motor being controlled.
  • Control Station:​ Remote pushbuttons (Start/Stop) or selector switches connected to the starter’s control terminals.
  • Motor Circuit Protectors (MCPs) or Fuses:​ If the unit includes a fusible disconnect, the appropriate current-limiting fuses.
  • Auxiliary Contact Blocks:​ Additional contact blocks can often be added to the contactor for more control signals.
  • Control Transformer:​ If the control voltage (e.g., 120V AC) differs from the line voltage, a transformer is needed to power the contactor coil.

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