Chromalox OT Catalog Page
OT
1-1/2" Wide Two Offset
Terminals, One End
• 7-1/2-47-1/2"Lengths
• 150-2,250Watts
• 120and240Volt
• 6-27W/In
2
Components
Dimensions
A
B
5/16 x 1/2" Slot
1-1/2
Applications
15/16
Strip heaters are used for heat transfer by
C
#10-32 Thd.
3/8
All Dimensions in Inches
conduction or convection to heat liquids, air,
gases and surfaces. See guidelines in the Strip
Heater Overview section.
Specifications and Ordering Information
Dimensions (In.) Rust-Resisting Iron Sheath Chrome Steel Sheath
2
7-1/2 6-1/2 6 150 11 OT-715 S 129314 S 129322 200 15 OT-702 S 129613 S 129621 0.5
8
8
10-1/2 9-1/2 9 250 10 OT-1025 S 129373 S 129381 350 15 OT-1003 S 129672 S 129680 0.75
10-1/2 9-1/2 9 — — — S — — — 400 17 OT-1004 S 129699 S 129701 0.88
12
12
12
14 13 12-1/2 300 8 OT-1430 S 129410 S 129429 500 14 OT-1405 S 129779 S 129787 1
15-1/4 14-1/4 13-3/4 325 8 OT-1532 S 129437 S 129445 500 12 OT-1505 S 129795 S 129808 1.13
17-7/8
17-7/8
17-7/8
19-1/2
19-1/2
19-1/2
21 20 19-1/2 500 8 OT-2150 S 129550 S 129568 750 12 OT-2107 S 129939 S 129947 1.63
23-3/4
23-3/4
23-3/4
23-3/4
25-1/2
25-1/2
26-3/4
26-3/4
30-1/2
30-1/2
30-1/2
33-1/2 32-3/8 31 750 7 OT-3375 S 121101 S 121110 750 7 OT-3307 S 121312 S 121320 2.69
35-7/8 34-3/4 33-1/2 1,000 9 OT-3610 S 121128 S 121136 1,500 13 OT-3601 S 121339 S 121347 2.88
38-1/2
38-1/2
42-1/2 41-3/8 40 1,250 9 OT-4312 S 121187 S 121195 1,500 11 OT-4315 S 121398 S 121400 3.38
47-7/8
47-7/8
7
6-1/2
7
6-1/2
11
10-1/2
11
10-1/2
11
10-1/2
16-7/8
16-3/8
16-7/8
16-3/8
16-7/8
16-3/8
18-1/2
18
18-1/2
18
18-1/2
18
22-3/4
22-1/4
22-3/4
22-1/4
22-3/4
22-1/4
22-3/4
22-1/4
24-1/2
24-1/22424
25-3/4
25-1/4
25-3/4
25-1/4
29-3/8
28
29-3/8
28
29-3/8
28
37-1/2
37-1/23636
46-3/4
45-3/8
46-3/4
45-3/8————
StockStatus:S = stock NS = non-stock
ToOrder—Specify model, PCN, watts, volts and quantity.
150
1751012
250
—
—
350
375
500
350
500
—
500
750
—
—
500
75069
700
75089
750
—
—
800
1,00068
Model
OT-815
OT-817SS
8
OT-1225
—
—
6.5
OT-1835
7
OT-1837
10
OT-1850
6
OT-1935
8
OT-1950
—
7
OT-2450
10
OT-2475
—
—
OT-2550
OT-2575SS
OT-2670
OT-2675SNS
8
OT-3075
—
—
OT-3880
OT-3810SS
—
—
—
—
—
—
—
—
—
120V 240V
Stock PCN Stock PCN Stock PCN Stock PCN
S
S
S
S
S
S
S
S
S
S
S
—
—
S
—
—
—
—
129330
129357SS
129390
—
—
129453
129470
129496
129517
129533
—
129576
129592
—
—
121005
121021SS
121048
121064SS
121080
—
—
121144
121160SS
—
—
129349
129365
S
129402
—
—
S
129461
S
129488
S
129509
S
129525
S
129541
S
S
129584
S
129605
—
—
121013
121030
121056
121072
S
121099
—
—
121152
121179
—
—
Watts W/In2Model
250
4001727
—
—
—
—
—
—
—
——1,350
250
350
500
500
750
1,000
500
750
1,000
500
750
1,000
1,500
750
1,000913
1,000—12—OT-2601—S—121240—S—121259—2.19
750
1,000
1,250
1,000
1,500812
2,250914
OT-802
OT-804SS
8
OT-1202
14
OT-1203
17
OT-1205
10
OT-1805
15
OT-1807
19
OT-1801
9
OT-1905
13.5
OT-1907
18
OT-1901
7
OT-2405
10
OT-2407
14
OT-2401
19
OT-2415
OT-2507
OT-2501SS
8
OT-3007
11
OT-3001
13
OT-3012
OT-3801
OT-3815SNS
OT-4813
OT-4822SS
120V 240V
129630
129656SS
S
129710
S
129736
S
129752
S
129816
S
129832
S
129859
S
129875
S
129891
S
129912
S
129955
S
129971
S
129998
S
129226
121208
121224SS
S
121267
S
121283
S
—
121355
121371SS
—
—
129648
129664
S
129728
S
129744
S
129760
S
129824
S
129840
S
129867
S
129883
S
129904
S
129920
S
129963
S
129980
S
130008
S
129234
121216
121232
S
121275
S
121291
S
121304
121363
121380
SS121419
121427
Wt.
(Lbs.)A B C Watts W/In
0.56
0.56
0.88
0.88
0.88
1.38
1.38
1.38
1.5
1.5
1.5
1.81
1.81
1.81
1.81
2.06
2
2.19
2.38
2.38
2.38
3.19
3.19
3.75
3.75
A-62
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