Bussmann® SERIES 174 FLAT-PAK CIRCUIT BREAKER MANUAL RESET CIRCUIT BREAKERS SPECIFICATIONS Single Pole Thermal Type Breakers Applications: Branch circuit protection for multiple power outlet strips, trucks, RV’s, boats, buses, portable generators, building equipment, etc. Rating: 5-40A; 250VAC/32VDC. Interrupt Rating: 200A @ 250VAC. Operating Temperature Rating: –40°F (–40°C) to 185°F (85°C). Storage Temperature Rating: –40°F (–40°C) to 260°F (125°C). Materials: Grey UL-Rated 94V-0 thermoplastic. Termination: Threaded or quick-connect options available. Ingress Protection Rating: IP54 (except at terminals). Compliances: UL 1077 & CSA 22.2 No. 235 (See individual terminal styles for specific rating approvals); SAE J553; SAE J1171 (Ignition Protected). DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) TERMINAL / BASE STYLES BUSHING / NECK STYLES .48" (12.10) .35" (9.0) .35" (9.0) 7/16 - 28 THREAD 3/8 - 24 THREAD 31 ® ® 174XX-3X XXA XXX BUSSMANN UL & CSA 05 TO 30AMP .42" (10.67) .40" (9.00) 174XX-3X XXA XXX UL & CSA 05-40AMP 32 VDC 250 VAC .20" (5.19) .76" (19.40) 33 ® ® 174XX-3X XXA XXX UL & CSA 05-15 (WIRE) 05-30 (RING) 32VDC 250 VAC .75" (19.04) .12" (3.00) ® 174XX-3X XXA XXX BUSSMANN 32 VDC 250 VAC .79" (19.98) 28 UL & CSA 05-15 (WIRE) 05-30 (RING) .20" (5.19) .44" (Ø11.10) .38" (Ø9.52) PLASTIC KNURL NUT (STANDARD) .34" (8.51) 9.91 (.390) RESE PALNUT 34 ® RECOMMENDED BUSHING PANEL CUTOUT PUSH O .20" (5.19) .76" (19.40) SNAP - ON HARDWARE VARIATIONS T FLAT-PAK CIRCUIT PROTECTION PUSH TO RESET 32 ® ® BUSSMANN FIGURE B .60" (1.50) TYP. .81" (20.55) BUSSMANN FIGURE A 32 VDC 250 VAC T .93" (23.57) BUTTON MARKING OPTIONS 2 5 .19" (4.83) 2 5 1.11" (28.30) .55" (14.00) .79" (20.11) * PLASTIC BOOT * ALSO AVAILABLE IN BULK 3/8-24 P/N B151-7135-3 7/16-28 P/N B151-7135-1 3/8 - 24 THREAD 7/16 - 28 THREAD .32" (R8.1) .63" (16.13) .55" (13.84) SNAP - ON Cooper Bussmann Transportation Products • Phone: 1-888-867-8194 • Website: http://www.coopertp.com Bussmann® SERIES 174 FLAT-PAK CIRCUIT BREAKER Temperature Derating Curves for 5-40 Amp. Circuit Breakers 174 SERIES TEMP. VS. CURRENT CURVES % 0F RATED CURRENT 200% 10 AMP & BELOW TYPICAL CURVE 150% 100% 15 AMP & BELOW TYPICAL CURVE 50% 0% 0° (-18°) 50° (10°) 77° (25°) 100° (38°) 150° (65°) 200° (93°) 250° (121°) 300° (149°) COMMON CURVE ALL VALUES TEMPERATURE IN DEGREES F° (TEMPERATURE IN DEGREES C°) TIME vs. Percent of Rated Current Curves for 5-40 Amp. Circuit Breakers 174 SERIES TRIP CURVES % 0F RATED CURRENT 500% 400% 300% 200% 100% 0 5 10 15 20 30 40 50 100 150 200 400 600 TIME IN SECONDS PART NUMBERING SYSTEM Series Rating Terminal/ Base 174 – Type III 250 VAC/ 32VDC Manual Reset 05 – 5 amps 06 – 6 amps 07 – 7 amps 08 – 8 amps 10 – 10 amps 15 – 15 amps 20 – 20 amps 25 – 25 amps 30 – 30 amps 35 – 35 amps* 40 – 40 amps* *2 or 3 Style Terminal Only. ❏ 1 – .25" Quick 1 – 7/16-28 Connect thread 2 – 10-32 screw - 2 – 3/8-24 90° bend thread 3 – 6-32 screw - 3 – Snap-on 90° bend 4 – .25" Quick Connect with 6-32 screw 90° bend ❏ Hdwr. Pkg. ❏ Bushing Hdwr. ❏ – Special Options ❏❏ A – White w/no 1 – Pack bulk A – White plastic knurl nut, 0 – No hardware marking (standard) anti-rotational 1 – Bulk brass B – Red w/no 2 – Assemble to B – Black plastic knurl nut, screws for screw marking bushing anti-rotational terminals C – Black w/no 3 – No hardware C – White plastic knurl nut, 2 – Bulk brass marking** included anti-rotational w/ palnut screws and lockD – White w/amp D – Black plastic knurl nut, washers for marking anti-rotational w/ palnut screw terminals Fig. A E – None required for bushing 3 – Assembled brass E – White w/amp F – Zinc plated steel palnut screws for screw marking G – Button boot (thread-on) terminals Fig. B w/ palnut 4 – Assembled brass F – Red w/amp P – Aluminum knurl nut screws and lockmarking & palnut washers for Fig. A R – Black aluminum knurl nut screw terminals G – Red w/amp & palnut marking S – Alum. knurl nut, palnut, black plate Fig. B w/ white “push-to-reset” T – Alum. knurl nut, palnut, white plate w/ black “push-to-reset” V – Alum. knurl nut & white plate w/ black “push-to-reset” W – Alum. knurl nut & black plate w/ white “push-to-reset” **No marking available X – Aluminum knurl nut & internal tooth on Black buttons lockwasher Z – Hex nut & internal tooth lockwasher Cooper Bussmann Transportation Products • Phone: 1-888-867-8194 • Website: http://www.coopertp.com FLAT-PAK CIRCUIT PROTECTION 1 7 4 3 ❏❏❏ ❏❏ –❏ ❏ Bushing/ Neck Button 29