HDL26020 SQUARE D, HDL26020 Datasheet - Page 6

• Manufacturer Part Number: HDL26020
• Description: CIRCUIT BREAKER, THERMAL MAG, 2P, 20A
• Manufacturer: SQUARE D
• Series: PowerPactr

Specifications of HDL26020

• Actuator Style: Toggle
• No. Of Poles: 2
• Current Rating: 20A
• Voltage Rating Vdc: 250V
• Voltage Rating Vac: 600V
• Mounting Type: DIN Rail
• Terminals: Lug
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6
PowerPact
Section 1—General Information
06/2010
®
H- and J-Frame Circuit Breakers
Dual-Break Rotating Contacts
All PowerPact
that reduce the amount of peak current during a short circuit fault. This reduces the let-through
currents and enhances equipment protection.
Reduced Let-Through Currents
The moving contact has the shape of an elongated “S” and rotates around an
floating axis. The shape of the fixed and moving contacts are such that the
repelling forces appear as soon as the circuit reaches approximately 15 times I
Due to the rotating movement, repulsion is rapid and the device greatly limits
short-circuit currents, whatever the interrupting level of the unit (D, G, J or L). The
fault current is extinguished before it can fully develop. Lower let-through currents
provide less peak energy, reducing the required bus bar bracing, lowering
enclosure pressure, and delivering improved series or combination ratings. See
page 13 for UL Current Limiting labels.
Internal Operating Mechanism
H-frame and J-frame circuit breakers have an over-center toggle
mechanism providing quick-make, quick-break operation. The operating
mechanism is also trip-free, which allows tripping even when the circuit
breaker handle is held in the “ON” position.
Internal cross-bars provide common opening and closing of all poles with a
single operating handle.
All H-frame and J-frame circuit breakers have an integral push-to-trip
button in the cover to manually trip the circuit breaker. This should be used
as part of a regular preventive maintenance program.
Handle Position Indication
The H-frame and J-frame circuit breaker handle can assume any of three positions, ON, tripped or
OFF as shown. The center tripped position provides positive visual indication that the circuit breaker
has tripped.
The circuit breaker can be reset by first pushing the handle to the extreme “OFF” position. Power can
then be restored to the load by pushing the handle to the “ON” position.
®
H-frame and J-frame circuit breakers are equipped with dual-break rotating contacts
ON
OFF
Tripped
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Push-to-Trip