OT/OTN/OTs - Ferraz Shawmut
ONE-TIME
OT/OTN/OTS
class K-5 for versatility and economy, these general purpose fuses are hard to beat OT, OTN and OTS general purpose fuses provide low cost protection for feeder and branch circuits serving lighting, heating, and other non-motor loads. OT, OTN and OTS fuses will safely interrupt available short circuit currents up to 50,000 amperes in all ratings. OT, OTN and OTS fuses are not rejection fuses – care should be taken to ensure that replacement fuses do not have lower interrupting ratings than original fuses. OTN 15 through 60 satisfy the Canadian electrical code requirement for Type “P,” low melting-point, non-time delay fuses. Features/Benefits ➤ Easy to read imprint label for quick recognition and replacement ➤ Low cost for high protection value
HIGHLIGHTS:
Applications:
➤ Versatile ➤ Lowest cost protection for circuits serving non-inductive loads
➤ Feeders ➤ Branch Circuits ➤ Resistive Heating ➤ Residential and Small Commercial Installations
Ratings ➤ OT AC: 1 to 600A 250VAC, 50kA I.R. DC: 1 to 600A 250VDC, 20kA I.R. ➤ OTN (Canada) AC: 15 to 60A 250VAC, 50kA I.R. ➤ OTS AC: 1 to 600A 600VAC, 50kA I.R. DC: 1 to 600A 300VDC, 20kA I.R.
Approvals ➤ UL Listed to Standard 248-9 File E2137 ➤ CSA Certified to Standard C22.2 No. 248.9* ➤ Ferraz Shawmut Certified for DC per UL248
*The Canadian Electrical Code requires these fuses in ratings 15 through 60A to be of the low melting point design use OTN 15-60.
B 39 Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · [email protected]
B
ONE-TIME
general purpose/CLASS K-5 Fuses
ot/OTN/ots
Standard Fuse Ampere Ratings, Catalog Numbers Ampere Catalog Number Rating 250V 600V 1 OT1 OTS1 2 OT2 OTS2 3 OT3 OTS3 4 OT4 OTS4 5 OT5 OTS5 6 OT6 OTS6 7 OT7 – 8 OT8 OTS8 10 OT10 OTS10 12 OT12 OTS12 15 OT15, OTN15* OTS15 20 OT20, OTN20* OTS20 25 OT25, OTN 25* OTS25
Ampere Catalog Number Rating 250V 600V
Ampere Catalog Number Rating 250V 600V
30 35 40 45
OT30, OTN30* OT35, OTN35* OT40, OTN40* OT45, OTN45*
OTS30 OTS35 OTS40 OTS45
125 150 175 200
OT125 OT150 OT175 OT200
OTS125 OTS150 OTS175 OTS200
50 60 65 70
OT50, OTN 50* OT60, OTN60* OT65 OT70
OTS50 OTS60 – OTS70
225 250 300 350
OT225 OT250 OT300 OT350
OTS225 OTS250 OTS300 OTS350
75 80 90 100 110
OT75 OT80 OT90 OT100 OT110
OTS75 OTS80 OTS90 OTS100 OTS110
400 450 500 600
OT400 OT450 OT500 OT600
OTS400 OTS450 OTS500 0TS600
* In Canada
Recommended Fuse Blocks With Box Connectors For One-Time Class K-5 Fuses Fuse
Catalog Number Ampere 250V 600V Rating 1 Pole 3 pole 1 pole 3 pole
0-60A
0-30 31-60 61-100 101-200 201-400 401-600
A AMPERE RATING In. 250V-OT, OTN FUSES 0-30 2 31-60 3 61-100 5-7/8 101-200 7-1/8 201-400 8-5/8 401-600 10-3/8 600V-OTS FUSES 0-30 5 31-60 5-1/2 61-100 7-7/8 101-200 9-5/8 201-400 11-5/8 401-600 13-3/8
mm
20308 20608 21038 22003 24003 2633
60306 60606 61036 62001 64001 6631
60308 60608 61038 62003 64003 6633
A variety of pole configurations and termination provisions are available. Refer to the fuse block section of this catalog for details.
61-600A
Dimensions
20306 20606 21036 22001 24001 2631
B In. mm
C In.
mm
D In. mm
E In. mm
51 76 149 181 219 264
9/16 13/16 1-1/16 1-9/16 2-1/16 2-9/16
14 21 27 40 53 66
- - 1/8 3/16 1/4 1/4
- - 3 5 6 6
- - 3/4 1-1/8 1-5/8 2
- - 19 28 41 51
- - 1 1-3/8 1-7/8 2-1/4
25 35 48 57
127 139 200 244 295 340
13/16 1-1/16 1-5/16 1-13/16 2-9/16 3-1/8
21 27 34 46 66 80
- - 1/8 3/16 1/4 1/4
- - 3 5 6 6
- - 3/4 1-1/8 1-5/8 2
- - 19 28 41 51
- - 1 1-3/8 1-7/8 2-1/4
25 35 48 57
B 40 Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · [email protected]
ONE-TIME
general purpose/CLASS K-5 Fuses
ot/OTN/ots
Current in Amperes
Melting Time – Current Data, 250V Fuses
OT30 to 600; OTN 30, 60
Time in Seconds
Current in Amperes
Melting Time – Current Data, 600V Fuses
OTS30 to 600
Time in Seconds
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data – OT, OTN & OTS30 to 600, 250 and 600 Volts AC
Available Current in RMS Symmetrical Amperes
B 41 Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · [email protected]
B
OT/OTN/OTS
class K-5 for versatility and economy, these general purpose fuses are hard to beat OT, OTN and OTS general purpose fuses provide low cost protection for feeder and branch circuits serving lighting, heating, and other non-motor loads. OT, OTN and OTS fuses will safely interrupt available short circuit currents up to 50,000 amperes in all ratings. OT, OTN and OTS fuses are not rejection fuses – care should be taken to ensure that replacement fuses do not have lower interrupting ratings than original fuses. OTN 15 through 60 satisfy the Canadian electrical code requirement for Type “P,” low melting-point, non-time delay fuses. Features/Benefits ➤ Easy to read imprint label for quick recognition and replacement ➤ Low cost for high protection value
HIGHLIGHTS:
Applications:
➤ Versatile ➤ Lowest cost protection for circuits serving non-inductive loads
➤ Feeders ➤ Branch Circuits ➤ Resistive Heating ➤ Residential and Small Commercial Installations
Ratings ➤ OT AC: 1 to 600A 250VAC, 50kA I.R. DC: 1 to 600A 250VDC, 20kA I.R. ➤ OTN (Canada) AC: 15 to 60A 250VAC, 50kA I.R. ➤ OTS AC: 1 to 600A 600VAC, 50kA I.R. DC: 1 to 600A 300VDC, 20kA I.R.
Approvals ➤ UL Listed to Standard 248-9 File E2137 ➤ CSA Certified to Standard C22.2 No. 248.9* ➤ Ferraz Shawmut Certified for DC per UL248
*The Canadian Electrical Code requires these fuses in ratings 15 through 60A to be of the low melting point design use OTN 15-60.
B 39 Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · [email protected]
B
ONE-TIME
general purpose/CLASS K-5 Fuses
ot/OTN/ots
Standard Fuse Ampere Ratings, Catalog Numbers Ampere Catalog Number Rating 250V 600V 1 OT1 OTS1 2 OT2 OTS2 3 OT3 OTS3 4 OT4 OTS4 5 OT5 OTS5 6 OT6 OTS6 7 OT7 – 8 OT8 OTS8 10 OT10 OTS10 12 OT12 OTS12 15 OT15, OTN15* OTS15 20 OT20, OTN20* OTS20 25 OT25, OTN 25* OTS25
Ampere Catalog Number Rating 250V 600V
Ampere Catalog Number Rating 250V 600V
30 35 40 45
OT30, OTN30* OT35, OTN35* OT40, OTN40* OT45, OTN45*
OTS30 OTS35 OTS40 OTS45
125 150 175 200
OT125 OT150 OT175 OT200
OTS125 OTS150 OTS175 OTS200
50 60 65 70
OT50, OTN 50* OT60, OTN60* OT65 OT70
OTS50 OTS60 – OTS70
225 250 300 350
OT225 OT250 OT300 OT350
OTS225 OTS250 OTS300 OTS350
75 80 90 100 110
OT75 OT80 OT90 OT100 OT110
OTS75 OTS80 OTS90 OTS100 OTS110
400 450 500 600
OT400 OT450 OT500 OT600
OTS400 OTS450 OTS500 0TS600
* In Canada
Recommended Fuse Blocks With Box Connectors For One-Time Class K-5 Fuses Fuse
Catalog Number Ampere 250V 600V Rating 1 Pole 3 pole 1 pole 3 pole
0-60A
0-30 31-60 61-100 101-200 201-400 401-600
A AMPERE RATING In. 250V-OT, OTN FUSES 0-30 2 31-60 3 61-100 5-7/8 101-200 7-1/8 201-400 8-5/8 401-600 10-3/8 600V-OTS FUSES 0-30 5 31-60 5-1/2 61-100 7-7/8 101-200 9-5/8 201-400 11-5/8 401-600 13-3/8
mm
20308 20608 21038 22003 24003 2633
60306 60606 61036 62001 64001 6631
60308 60608 61038 62003 64003 6633
A variety of pole configurations and termination provisions are available. Refer to the fuse block section of this catalog for details.
61-600A
Dimensions
20306 20606 21036 22001 24001 2631
B In. mm
C In.
mm
D In. mm
E In. mm
51 76 149 181 219 264
9/16 13/16 1-1/16 1-9/16 2-1/16 2-9/16
14 21 27 40 53 66
- - 1/8 3/16 1/4 1/4
- - 3 5 6 6
- - 3/4 1-1/8 1-5/8 2
- - 19 28 41 51
- - 1 1-3/8 1-7/8 2-1/4
25 35 48 57
127 139 200 244 295 340
13/16 1-1/16 1-5/16 1-13/16 2-9/16 3-1/8
21 27 34 46 66 80
- - 1/8 3/16 1/4 1/4
- - 3 5 6 6
- - 3/4 1-1/8 1-5/8 2
- - 19 28 41 51
- - 1 1-3/8 1-7/8 2-1/4
25 35 48 57
B 40 Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · [email protected]
ONE-TIME
general purpose/CLASS K-5 Fuses
ot/OTN/ots
Current in Amperes
Melting Time – Current Data, 250V Fuses
OT30 to 600; OTN 30, 60
Time in Seconds
Current in Amperes
Melting Time – Current Data, 600V Fuses
OTS30 to 600
Time in Seconds
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data – OT, OTN & OTS30 to 600, 250 and 600 Volts AC
Available Current in RMS Symmetrical Amperes
B 41 Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · [email protected]
B
