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Altech Circuit Breakers

MCB 2010 catalog Click here for the new
Circuit Protection Catalog


Click here for Circuit Breaker Individual Data Pages
and Drawing Files

The Altech Advantage

In today’s very competitive marketplace you need reliability, so you need to use circuit breakers that are high quality and technically correct for your application. Altech is a US leader in DIN rail mounted breakers with ratings up to 63A. Only Altech offers DIN rail mounted breakers that meet UL489, UL508 or UL1077 approvals with a short circuit interrupt capacity of up to 10kA. No other manufacturer offers this complete line. This assures you the right product for your application requirements.

If your application requires a manual motor controller, Altech is the leading US supplier of UL508 Manual Motor Controllers (MMC). In AC, we offer up to 60A in 1 to 3 poles at 480Y/277VAC. With 6 trip curves, Altech has the largest selection in the industry. This ensures you the selectivity you require for your application designs. Our MMCs have a 10kA short circuit withstand capacity, this is the highest rating in the industry. The AC version is rated up to 60A and is DC rated in 2 poles up to 80VDC.

When you need branch circuit protection, Altech offers UL489 Miniature Molded Case Circuit Breakers in both AC and DC voltages. The AC version offers dual voltage rated circuit breakers at 0.2-63A/240VAC and 0.2-32A/480Y/277VAC in 1-3 poles. Altech is the only company that offers a 14kA, 20A C curve single phase breaker at 277V AC. The DC version offers 0.2-63A at 125V (1 pole) and 250V (2 pole).

When your application requires supplemental protection for control circuits and on the load side of branch circuit protectors Altech has solutions. We offer a competitive line of AC Supplementary Protectors, up to 63A, in 1 to 3 poles at 480Y/277VAC with a 10kA short circuit withstand rating.

Other products found in this catalog:

  • UL508 and UL489 Busbar Systems

  • Front panel mount UL1077 Recognized
    Supplementary Protectors

  • Large UL489 Listed Molded Case Circuit Breakers

The Altech Busbar system is a cost effective, less work intensive way to distribute power to up to 57 poles of Altech Manual Motor Controllers (MMC)/ Supplementary Protectors. Click here to visit our Busbar section.

New Series

Circuit Protection

ABL Sursum UL-Series
UL 489 Miniature Molded Case Circuit Breakers

click for PDF pages

ABL Sursum V-EA-Series
UL 508 Miniature Molded Case Circuit Breakers

click for PDF pages

ABL Sursum UR-Series
UL 1077 Miniature Molded Case Circuit Breakers
click for PDF pages

UL 489 miniature circuit breaker circuit breakers

UL 489 Miniature Molded Case Circuit Breakers

  • Available in AC and DC models
  • DIN Rail Mounted
  • 17.5mm width
  • Thermal Magnetic
  • Electrical Ratings:
    0.2-63A / 240V AC, 50/60Hz
    0.2-32A / 480Y/277V AC, 50/60Hz
    0.2-63A/125/250V DC
  • 125VDC (1 pole); 250VDC (2pole)
  • 10kA Short Circuit Interrupting Capacity
  • Positive Trip indicator
    (Green - off/tripped, Red - on)
  • HACR Type 40°C
  • Line/Load reversible

UL Certificate of Compliance.

CE Marking Declaration:


TD / TS Series
UL489 Listed Molded Case Circuit Breakers

  • Compact Design
  • Thermal Magnetic
  • Electrical Ratings:
    15-600A/240, 480, 600V AC
  • Up to 100kA Short Circuit interrupting capacity
  • Circuit breakers are supplied with line and load terminal
  • HACR rated

V-EA Series
UL508 Manual Motor Controllers

  • UL508 Listed and CSA C22.2 No. 14 certified
  • Suitable for Motor Disconnect Means
  • Electrical Ratings:
    0.3 - 60A / 480 /277V AC, 50/60Hz
  • Six trip characteristics; 1, 2 and 3 poles + Neutral
  • Also UL1077 recognized
  • Horsepower Ratings for protecting motors up to 40hp
  • 10kA Interrupt Rating
  • Thermal Magnetic Type
  • Provides Overload Protection
    Complementary UL-Listed Busbar System Available
  • Ring Tongue Terminals Available
  • Suitable for Disconnect Use:
  • AC Motors
  • AC General Use Loads
  • AC Ballast Loads
  • AC Tungsten Loads
  • AC Resistance Loads
  • CSA C22.2 No.14 Certified

Declaration of Conformity:

Three Phase Adjustable Trip
Miniature Circuit Breakers/ Manual Motor Controllers

  • Modern Look and Color
    Dark blue handle and terminal caps enhance appearance and match imprint.
  • Marking Window
    Large marking area with clear swivel window screen.
  • Standard Dual Connection Terminal
    Standard box & ring tongue terminal are unique for the industry.
  • Reinforced Housing
    Added ridges and new housing design improves overall product strength.

  • Suitable for Motor Disconnect Means
  • CSA C22.2 No. 14 Certified
  • 10kA Interrupt Rating
  • Electrical Ratings:
    0.16-40A / 480Y/277V AC
  • Thermal Magnetic Type
  • Horsepower Rated for Motor Applications
  • 6 Different Trip Characteristics

Three Phase
Adjustable Trip Economy
Manual Motor Controllers

  • Adjustable Operating Current Up to 100% of Rated Current, 0.1A to 25A in 13 Rated Currents
  • Electrical Ratings:
    0.16-25A / 600V AC, (480V AC for 20/25A models)
  • Temperature compensated and phase failure sensitive
  • Wide range of accessories including, door mounting kits and emergency stops

UL 1077 Supplementary Protectors

  • DIN Rail Mounted
  • 17.5mm width per pole
  • Thermal Magnetic
  • Electrical Ratings: 0.5-63A / 480Y/277V AC, 50/60Hz
  • 10kA Short Circuit Withstand Capacity 10kA
  • Positive Trip indicator (Green - off/tripped, Red - on)
  • Applications (on the load side of Branch Circuit Protection) include: Sensitive Electronics, Power Supplies, Appliance circuits, etc.

CE Marking Declaration:


Altech Busbar Systems

The Altech Busbar system is a cost effective, less work intensive way to distribute power to up to 57 poles of Altech Miniature Circuit Breakers (MCB) and Manual Motor Controllers (MMC), as well as competitors products.

  • 3 Phase Busbars
  • 2 Power Feed Methods
    (Power Feed Lugs and Power Feed Blocks)
  • UL508 Listed UL File 205412
  • Electical Ratings: upto 200A/480VAC
  • Easy Assembly
  • UL Recognized for ABB - S200 Series
  • UL Recognized for Cutler Hammer: WMS Series
  • Please contact us for other MCB's Brands

Click here for much more infomation and PDF file links

TR11, TR20 and TR30 Series
UL1077 Recognized Supplementary Protector/
Circuit Breaker for Equipment

  • Electrical Ratings:
    0.5-16.0A / 240V AC, 50/60Hz, 32V DC / 24V DC (VDE)
  • Applications:
    Protection of single phase Motors, Transformers,
    UPS, Power strips, Solenoids etc., against
    damage due to overcurrent conditions.

RP - Series Earth Leakage Circuit Breakers

Compact DIN rail mount RCCB Earth Leakage Circuit Breakers detect and interrupt ground faults. They are VDE approved for the European system of protecting people, animals, equipment and property from dangerous line-to-ground and shock hazard currents.

US applications include ground fault protection of equipment (GFPE), especially when high distributed capacitance or other leakages cause excessive nuisance trips at lower fault currents.

    • RCCB Four Pole, 2- or 3-Phase
    • RCCB Two Pole, Single Phase
    • Electrical Ratings:
      16-63A / 415Y/240V AC
    • Trip Capable on Decayed Line Voltage
    • Marked Approval of VDE
    • Marked "Snowflake" Temperature Range (-25 to 40 °C [-13 to 104 °F])
    • Marked Trip Sensitivity to Pulsed as well as Sinusoidal Fault Currents
    • Integral Test Circuit
    • Insensitive to Vibration, etc

For more information contact Altech at:
908-806-9400 • 908-806-9490 (FAX) • • 35 Royal Road, Flemington, NJ 08822