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AMENDMENT NO. 1 JANUARY 2011 Amend No. 1 to IS 996 : 2009
TO
Table 12 Values of Performance Characteristics
IS 996 : 2009 SINGLE PHASE a.c. INDUCTION MOTORS of 4 Pole Shaded Pole Motors
FOR GENERAL PURPOSE
(Clause 12.5.1, and Notes 1 to 3)
( Third Revision )
Rated Minimum Full Maximum Minimum Product Maximum
[Second cover page, Foreword, second para (b)] — Delete ‘except for Output Load Speed Full Load of Efficiency and Breakaway
shaded pole and split phase motors’. Current Power Factor at Starting Current
Rated Load
(Page 1, clause 1.1) — Substitute the following for the existing: W rev/min A A
(1) (2) (3) (4) (5)
‘1.1 This standard covers single phase ac induction motors of the capacitor 2.5 1 200 0.5 0.023 1.25
types, split phase and shaded pole types for voltage up to and including 250 V
4.0 1 200 0.6 0.035 1.5
and having windings with Class A, Class E, Class B, Class F, and Class H
7.0 1 200 0.8 0.046 2.0
insulation (see IS 1271 : 1985 Thermal evaluation and classification of electrical
insulation and output up to and including 2 200 W).’ 12 1 200 1.1 0.058 2.75
18 1 200 1.3 0.069 3.25
(Page 5, Table 1) — Add the following after Sl No. (iii): 25 1 200 1.6 0.081 4.0
40 1 200 1.8 0.104 4.5
iv) Shaded pole 120 20 30
60 1 200 2.2 0.127 5.5
v) Split phase:
90 1 225 2.8 0.150 7.0
a) 200 125 150
b) 250 200 225 120 1 225 3.2 0.184 8.0
180 1 225 4.0 0.219 10.0
(Page 5, Table 2) — Add the following after Sl No. (iii) 250 1 225 5.0 0.242 12.5
370 1 225 8.8 0.196 22.0
iv) Shaded pole 10
v) Split Phase 60
(Page 6, clause 12.5.1, first para; and Notes 1, 2 and 3) — Substitute
‘Tables 1 to 13’ for ‘Tables 1 to 11’ wherever appear.
(Page 6, clause 12.5.1, Note 3, line 6) — Substitute ‘Table 14’ for ‘Table 12’.
(Page 8) — Add the following tables after Table 11:
1 2
Free Standard provided by BIS via BSB Edge Private Limited to Required For Lab - Greater
Noida(info@poweroniclab.com) 59.178.162.233 [for non-commercial use only].
AMENDMENT NO. 1 JANUARY 2011 Amend No. 1 to IS 996 : 2009
TO
Table 12 Values of Performance Characteristics
IS 996 : 2009 SINGLE PHASE a.c. INDUCTION MOTORS of 4 Pole Shaded Pole Motors
FOR GENERAL PURPOSE
(Clause 12.5.1, and Notes 1 to 3)
( Third Revision )
Rated Minimum Full Maximum Minimum Product Maximum
[Second cover page, Foreword, second para (b)] — Delete ‘except for Output Load Speed Full Load of Efficiency and Breakaway
shaded pole and split phase motors’. Current Power Factor at Starting Current
Rated Load
(Page 1, clause 1.1) — Substitute the following for the existing: W rev/min A A
(1) (2) (3) (4) (5)
‘1.1 This standard covers single phase ac induction motors of the capacitor 2.5 1 200 0.5 0.023 1.25
types, split phase and shaded pole types for voltage up to and including 250 V
4.0 1 200 0.6 0.035 1.5
and having windings with Class A, Class E, Class B, Class F, and Class H
7.0 1 200 0.8 0.046 2.0
insulation (see IS 1271 : 1985 Thermal evaluation and classification of electrical
insulation and output up to and including 2 200 W).’ 12 1 200 1.1 0.058 2.75
18 1 200 1.3 0.069 3.25
(Page 5, Table 1) — Add the following after Sl No. (iii): 25 1 200 1.6 0.081 4.0
40 1 200 1.8 0.104 4.5
iv) Shaded pole 120 20 30
60 1 200 2.2 0.127 5.5
v) Split phase:
90 1 225 2.8 0.150 7.0
a) 200 125 150
b) 250 200 225 120 1 225 3.2 0.184 8.0
180 1 225 4.0 0.219 10.0
(Page 5, Table 2) — Add the following after Sl No. (iii) 250 1 225 5.0 0.242 12.5
370 1 225 8.8 0.196 22.0
iv) Shaded pole 10
v) Split Phase 60
(Page 6, clause 12.5.1, first para; and Notes 1, 2 and 3) — Substitute
‘Tables 1 to 13’ for ‘Tables 1 to 11’ wherever appear.
(Page 6, clause 12.5.1, Note 3, line 6) — Substitute ‘Table 14’ for ‘Table 12’.
(Page 8) — Add the following tables after Table 11:
1 2
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Amend No. 1 to IS 996 : 2009 Amend No. 1 to IS 996 : 2009
Table 13 Values of Performance Characteristics (Page 12, Annex B, clause B-1.4) — Add the following new clauses after
of 4 Pole Split Phase Induction Motors B-1.4:
(Clause 12.5.1, and Notes 1 to 3)
‘B-1.5 Split-Phase
Rated Minimum Full Maximum Minimum Product Maximum Owing to their high starting currents, split-phase motors are generally used for
Output Load Speed Full Load of Efficiency and Breakaway loads of low inertia and infrequent starting. When higher starting currents can be
Current Power Factor at Starting Current tolerated, motors of the higher torque rating can be used [type (b) motors in
Rated Load
Table 16].
W rev/min A A
(1) (2) (3) (4) (5) NOTE — Unless otherwise specified, these motors are provided with some means of
switching out or modifying the auxiliary or starting winding, for example, centrifugal
12 1 325 0.65 0.08 6.5
switches or electromagnetic relays.
18 1 325 0.8 0.09 8
25 1 325 1.0 0.10 10 B-1.6 Shaded-Poles
40 1 325 1.2 0.14 12
60 1 325 1.5 0.17 15
These motors are suitable for all applications where only a very low starting
torque is required and motor efficiency is not important.’
90 1 325 2.0 0.19 20
120 1 350 2.2 0.23 22 (Page 15, Annex E, clause E.1) — Add ‘Seconds’ under col heading 4
180 1 350 2.8 0.27 28 and add the following matter in the table after Sl No. (iii):
250 1 350 3.8 0.27 38
370 1 350 6.0 0.26 60 iv) Shaded pole 80 3
550 1 375 7.0 0.33 70 v) Split phase 10 1
750 1 375 10.0 0.31 100
1 100 1 375 13.0 0.35 130 (Page 16, Note under clause F-6.11; and clause F-7.1.1) — Substitute
1 500 1 375 18.0 0.35 180
‘Table 14’ for ‘Table 12’.
(Page 19, Annex G, clauses G-1.2 and G-2) — Substitute ‘Table 16’ for
(Page 8, clause 12.5.2, line 2) — Substitute ‘Table 14’ for ‘Table 12’. ‘Table 14’.
(Page 8, clause 13.1, line 2) — Substitute ‘Table 15’ for ‘Table 13’.
(Page 9, Table 12, title) — Substitute ‘Table 14’ for ‘Table 12’.
(Page 9, clause 13.2.14) — Substitute ‘Table 15’ for ‘Table 13’ and
renumber the existing Table 13 as Table 15.
(ET 15)
Reprography Unit, BIS, New Delhi, India
3 4
Free Standard provided by BIS via BSB Edge Private Limited to Required For Lab - Greater
Noida(info@poweroniclab.com) 59.178.162.233 [for non-commercial use only].
Amend No. 1 to IS 996 : 2009 Amend No. 1 to IS 996 : 2009
Table 13 Values of Performance Characteristics (Page 12, Annex B, clause B-1.4) — Add the following new clauses after
of 4 Pole Split Phase Induction Motors B-1.4:
(Clause 12.5.1, and Notes 1 to 3)
‘B-1.5 Split-Phase
Rated Minimum Full Maximum Minimum Product Maximum Owing to their high starting currents, split-phase motors are generally used for
Output Load Speed Full Load of Efficiency and Breakaway loads of low inertia and infrequent starting. When higher starting currents can be
Current Power Factor at Starting Current tolerated, motors of the higher torque rating can be used [type (b) motors in
Rated Load
Table 16].
W rev/min A A
(1) (2) (3) (4) (5) NOTE — Unless otherwise specified, these motors are provided with some means of
switching out or modifying the auxiliary or starting winding, for example, centrifugal
12 1 325 0.65 0.08 6.5
switches or electromagnetic relays.
18 1 325 0.8 0.09 8
25 1 325 1.0 0.10 10 B-1.6 Shaded-Poles
40 1 325 1.2 0.14 12
60 1 325 1.5 0.17 15
These motors are suitable for all applications where only a very low starting
torque is required and motor efficiency is not important.’
90 1 325 2.0 0.19 20
120 1 350 2.2 0.23 22 (Page 15, Annex E, clause E.1) — Add ‘Seconds’ under col heading 4
180 1 350 2.8 0.27 28 and add the following matter in the table after Sl No. (iii):
250 1 350 3.8 0.27 38
370 1 350 6.0 0.26 60 iv) Shaded pole 80 3
550 1 375 7.0 0.33 70 v) Split phase 10 1
750 1 375 10.0 0.31 100
1 100 1 375 13.0 0.35 130 (Page 16, Note under clause F-6.11; and clause F-7.1.1) — Substitute
1 500 1 375 18.0 0.35 180
‘Table 14’ for ‘Table 12’.
(Page 19, Annex G, clauses G-1.2 and G-2) — Substitute ‘Table 16’ for
(Page 8, clause 12.5.2, line 2) — Substitute ‘Table 14’ for ‘Table 12’. ‘Table 14’.
(Page 8, clause 13.1, line 2) — Substitute ‘Table 15’ for ‘Table 13’.
(Page 9, Table 12, title) — Substitute ‘Table 14’ for ‘Table 12’.
(Page 9, clause 13.2.14) — Substitute ‘Table 15’ for ‘Table 13’ and
renumber the existing Table 13 as Table 15.
(ET 15)
Reprography Unit, BIS, New Delhi, India
3 4
