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.

UL489
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. The DC version offers 0.2-63A at 125V (1 pole) and 250V (2 pole).

UL508
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.

UL1077
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.

Altech / Doepke Breakers

4 page Breaker Comparison

Altech Circuit Protection Video

Circuit Breaker Specification Sheets
Selection Guide

DLS9

UL(AC), DL(DC) - Series 
UL489 Miniature Molded Case
Circuit Breakers

• Available in AC and DC models
• DIN Rail Mounted
• 17.5mm width
• Thermal Magnetic
• 240V, 480Y/277V AC, 50/60Hz
• 125V DC (1 pole); 250V DC (2pole)
• 10kA Short Circuit
  Interrupting Capacity
• HACR Type 40°C
• Line/Load reversible

DLS8

UM - Series
UL508 Listed Manual Motor Controllers
“Suitable as Motor Disconnect”

• DIN Rail Mounted
• 17.5mm width per pole
• Thermal Magnetic
• 0.3-60A / 480Y/277V AC, 50/60Hz
• 10kA Short Circuit
  Withstand Capacity
• Applications Include:
  • AC Motor Starting, Across the Line
  • AC General Use
  • AC Resistance
  • AC Discharge Lamps (Ballast)
  • AC Incandescent Lamps (Tungsten)

DLS7

UR - Series
UL1077 Recognized Supplementary Protector

• DIN Rail Mounted
• 17.5mm width per pole
• Thermal Magnetic
• 0.3-60A / 480Y/277V AC, 50/60Hz
• 10kA Short Circuit
  Withstand Capacity
• Applications (on the load side of Branch Circuit Protection) include: Sensitive Electronics, Power Supplies, Appliance circuits, etc.

• The Altech Busbar System is an innovative way to jumper up to 57 poles of Miniature Circuit Breakers (MCB).

  The advantages of this busbar system are:

  • 30% Installation time savings
  • Panel space savings
  • Reduced maintenance
  • High electrical ratings

• Ratings of up to 115A
• UL listed for use with most competitor’s UL 489 Miniature Circuit Breakers
  
  
  • 30% Installation time savings
  • Panel space savings
  • Reduced maintenance
  • High electrical ratings

• The Altech Busbar System is an innovative way to jumper up to 57 poles of Manual Motor Controllers (MMC) and Supplementary Protectors (SP).

  The advantages of this busbar system are:

  • 30% Installation time savings
  • Panel space savings
  • Reduced maintenance
  • High electrical ratings

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.

The MA was designed to handle the high inrush loads of 3 phase transformers, power supplies, motors, etc. The MA protects wiring and equipment from damage caused by the three major classes of overcurrent, yet greatly reduces the number of nuisance trips in high starting and inrush current circuits.

Electrical Ratings: 0.5-16.0A / 240V AC, 50/60Hz, 32V DC / 24V DC (VDE)

Applications:
Protection of Control Transformers, UPS, Power strips, Solenoids etc., against damage due to
overload conditions.