HDL26020 SQUARE D, HDL26020 Datasheet - Page 12

• 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

12
PowerPact
Section 1—General Information
06/2010
®
H- and J-Frame Circuit Breakers
Marine Ratings
UL Marine Listed Circuit Breakers (UL489SA)
A standard for molded case circuit breakers which are intended to be installed and used aboard a boat
or vessel is included in Supplement SA SB to UL 489, “Standard for Molded Case Circuit Breakers and
Circuit Breaker Enclosures’’ (also referred to as UL product category DKTY). This UL Standard was
established in accordance with U.S. Coast Guard regulations, applicable American Boat and Yacht
Council Inc. publications, and NFPA® 302 “Standard for Motor Craft (Pleasure and Commercial)’’. In
order to be UL Listed for marine use, circuit breakers must not use aluminum or aluminum alloys for
terminal connections and must be calibrated at an ambient temperature of 40°C. Standard circuit
breakers should not be specified or used in place of marine circuit breakers.
The PowerPact H and J-frame circuit breakers are UL 489 SA and SB Marine Listed for use on vessels
over 65 ft. (19.8 m) in length and under 65 ft. [19.8 m] in length.)
adding the suffix “YA” for marine listing and the suffix “LC” for the required copper lugs to the catalog
number.
UL Naval Listed Circuit Breakers (UL 489 SB)
The standard for molded case circuit breakers which are intended or use aboard non-combatant and
auxiliary naval ships is included in Supplement SB to UL 489, “Standard for Molded Case Circuit
Breakers and Circuit Breaker Enclosures’’. The PowerPact H and J-frame circuit breakers are UL 489
SB are UL Naval Listed for use on vessels over 65 ft. (19.8 m) in length and under 65 feet (19.8 m) in
length. Order marine circuit breakers adding the suffix “YA” for marine listing and the suffix “LC” for the
required copper lugs to the catalog number.
American Bureau of Shipping (ABS)
The PowerPact H- and J-Frame circuit breakers are certified to ABSNVR (American Bureau of
Shipping - Naval Vessel Rules), for use on Naval vessels.
400 Hz Derating
Application of thermal-magnetic circuit breakers at frequencies above 60 Hz requires that special
consideration be given to the effects of high frequency on the circuit breaker characteristics. Thermal
and magnetic operations must be treated separately.
At frequencies below 60 Hz, the thermal rerating of thermal-magnetic circuit breakers is negligible.
However, at frequencies above 60 Hz, thermal rerating is required.
One of the most common high frequency applications is at 400 Hz.
Table 11:
For more information, refer to Data Bulletin 0100DB0101, Determining Current Carrying Capacity in
Special Applications.
Reverse Feeding of Circuit Breakers
The standard unit-mount H- and J-frame circuit breakers have sealed trip units and may be reverse
fed. See Tables 15–18 for catalog numbers.
Circuit breakers with field-interchangeable trip units (designated by the suffix T and labeled “LINE” and
“LOAD”) cannot be reverse fed. Neither can circuit breaker frames without terminations or trip units.
See Tables 19–21.
Circuit Breaker
H-Frame
J-Frame
400 Hz Derating
400 Hz Derating Multiplier
0.95
0.90
Order marine circuit breakers by
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