Bulletin 1492 Circuit Protection Supplementary Protectors (Miniature Circuit Breakers), Continued 1492-GS, Continued Specifications ➊ Cat. No. 1492-GS High-density miniature circuit breaker (supplementary protector) with universal mounting foot for Allen-Bradley and DIN Rail mounting Description 277/480V AC 50/60 Hz 65V DC Maximum Voltage Ratings Standard Current Ratings Internal Resistance per Pole A Ω 0.2 0.5 0.8 26 4.2 1.6 1.0 1.1 1.5 0.47 2.0 0.25 Dielectric Strength Shock and Vibration Specifications Insulation Resistance Current Capacity of Auxiliary Contacts (N.O., N.C.) Voltage Rating of Auxiliary Contacts Operating Life Temperature Range Wire Size Recommended Wire Strip Length Recommended Tightening Torque 2.5 0.20 3.0 0.13 4.0 0.08 5.0 0.06 6.0 0.05 8.0 10.0 12.0 15.0 16.0 20.0 25.0 0.01 0.01 0.01 0.01 0.01 0.005 0.004 1960V AC Shock: 25 G, 11 ms duration Vibration: 5 G (10…500 Hz) Greater than 100 MΩ @ 500V DC 1.0 A AC or DC (resistive load) 277V AC 65V DC 6000 cycles @ rated current (UL 1077) –40…+149°F (–40…+65°C) #22…#10 AWG (0.5…6 mm2) 0.51" (13.0 mm) for Mail Terminals 0.41" (10.4 mm) for Auxiliary Terminals 5 lb-in. (0.565 Nm) ➊ Performance Data — See Publication A113, page Important-2. 115 Bulletin 1492 Circuit Protection Supplementary Protectors (Miniature Circuit Breakers), Continued 1492-GS, Continued Approvals • UL 1077 • CSA 22.2 NO. 235 • VDE 0631 (IEC 60934) In North America, the Cat. No. 1492-GS Miniature Circuit Breaker is rated as a Supplementary Protector with a short-circuit current rating. Internationally, it is rated by IEC as a Circuit Breaker for Equipment with an interrupt rating Electrical Characteristics Voltage Rating Short-Circuit Current Rating ➊ Interrupt Rating Icn (IEC only) Poles Rated Current (A) 1 0.2…5 277 — 1 6…25 277 — 0.7 kA, U2 2, 3 0.2…5 277/480 — 0.4 kA, U2 AC DC UL 1077 Supplementary Protector Rating 0.4 kA, U2 2, 3 6…25 277/480 — 0.5 kA, U2 1, 2, 3 0.2…5 — 65 0.4 kA, U2 1, 2, 3 6…25 — 65 0.8 kA, U2 1 0.2…16 277 — 5 kA, C1 1 18…25 277 — 2 kA, C1 2, 3 0.2…16 277/480 — 5 kA, C1 2, 3 18…25 277/480 — 2 kA, C1 1 0.2…25 — 65 2 kA, C1 CSA 22.2 #235 Supplementary Protector Ratings 1 0.2…16 277 — 5 kA, C1 1 18…25 277 — 2 kA, C1 2, 3 0.2…16 277/480 — 5 kA, C1 2, 3 18…25 277/480 — 2 kA, C1 1 0.2…25 — 65 2 kA, C1 IEC 60934 Circuit Breaker for Equipment Ratings 1 0.2…5 250 — 1 6…25 250 — 0.4 kA 0.8 kA 2, 3 0.2…5 240/415 — 0.4 kA 2, 3 6…25 240/415 — 0.8 kA 1 0.2…5 — 65 0.4 kA 1 6…25 — 65 0.8 kA ➊ The short-circuit current rating is followed by a letter and number designating the test conditions and any calibrations and dielectric tests following the short-circuit test. These designations are defined as follows (see ➋ also): C — Indicates that the short-circuit test was conducted with series overcurrent protection U — Indicates that the short-circuit test was conducted without series overcurrent protection 1 — Indicates that a recalibration and dielectric test was not conducted as part of the short-circuit test 2 — Indicates that a recalibration and dielectric test was conducted as part of the short-circuit test ➋ These alphanumeric designations were established by UL. CSA has not yet adopted them; however, the test conditions are equivalent to UL and the coding is appropriate. 116