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Heavy-Duty 30.5 mm
Metal PusHbuttons
10250T25R
10250T Series
10250T122
l Heavy-Duty Zinc Die Cast
Construction
l Enclosed Silver Contacts with
Reliability Nibs
l Diaphragm Seals with
Drainage Holes
l Grounding Nibs on
Operator Casing
The 30.5 mm pushbutton line features a
zinc die cast construction with chromeplated housing and mounting nut. The
same durable construction is also available
with the corrosive resistant E34 Series of
pushbuttons.
The contact blocks feature enclosed
silver contacts with pointed “reliability
nibs” for reliable performance from
logic level up to 600V. To ensure reliable
switching, nibs bite through oxide which
can form on silver contacts, eliminating
the need for expensive logic level blocks
for most applications.
Reliability nibs improve performance in
dry circuit, corrosive, fine dust and other
contaminated atmospheres.
Under normal environmental conditions, the
minimum operational voltage is 5V and the
minimum operational current is 1 mA, AC/
DC. For operation under a wider range of
environmental conditions, logic level contact
blocks with inert palladium tipped contacts
are recommended.
10250T Series operators have “grounding
nibs”—4 metal points on the operator
casting designed to bite through most
paints and other coatings on metal panels
to enhance the ground connection when the
operator is securely tightened.
Omega’s pushbutton operators offer front
of panel drainage via holes in the operator
10250T17213
10250T103
bushing. Hidden from view by the mounting
nut, these holes prevent buildup of liquid
inside the operator, which can prevent
operation in freezing environments. The
holes also provide a route for escaping liquid
in high pressure washdowns, effectively
relieving pressure from the internal
diaphragm seal. This ensures reliable sealing
in applications even beyond NEMA 4.
All models shown
smaller than
actual size.
10250T23B
10250T112
Pushbuttons and Warning Lights
10250T101
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SPECIFICATIONS
Standards and Certifications:
CE EN60947-5-1
UL 508: File No. 131568
CSA C22.2 No. 14: File No. LR68551
Ingress Protection (When Mounted in
Similarly Rated Enclosure):
Standard Indicating Lights:
UL (NEMA) Type 1, 2, 3, 3R, 3S, 4,
4X, 12, 13; IEC IP65
All Other Operators: UL (NEMA)
Type 1, 2, 3, 3R, 4, 4X, 12, 13;
IEC IP65
MECHANICAL RATINGS
Frequency of Operation:
All Pushbuttons: 6000 operations
per hr
Key and Lever Selector Switches:
3000 operations per hr
Auto-Latch Devices: 1200
operations per hr
Life:
Pushbuttons: 10 x 106 operations
Contact Blocks: 10 x 106 operations
PresTest Units: 10 x 106 operations
Lever and Key Selector Switches:
0.25 x 106 operations
Twist-to-Release Pushbuttons:
0.3 x 106 operation
Shock Resistance Duration:
20 mS ≥ 5g
Climate Conditions:
Operating Temperature: -17 to 66°C
(1 to 150°F)
Storage Temperature: -40 to 80°C
(-40 to 176°F)
Altitude: 2000 m (6562’)
Max Humidity: 95% RH @ 60°C
(140°F)
Terminals: Marking; NC-NO on the
contact block to meet the NEMA
requirements; dual marking system
1 to 2 for normally closed, 3 to 4 for
normally open to meet BS5472
(Cenelec EN50 005)
Clamps: Terminals are saddle clamp
type for 1 x 22 AWG (0.34 mm2) to
2 x 14 AWG (2.5 mm2) conductors;
torque = 7 lb-in (0.8 Nm)
Degree of Protection Against
Direct Electrical Contact: IP2X with
fingerproof shroud
Light Units: Transformers will
withstand short circuit for 1 hr per
IEC 60997-5-1
Average Bulb Life:
Transformer type: 20,000 hrs
Resistor/Direct Voltage Type:
2500 hr min @ rated V
LED: 60,000 to 100,000 hrs
Electrical Ratings
Insulation: Ui = 660 Vac or Vdc
Thermal: lth = 10 A
Short Circuit Coordination to
IEC/EN 60947-5-1:
Rated Conditional Short Circuit
Current: 1 kA
Fuse Type: GE Power Controls
TIA 10, Red Spot Type gG, 10 A,
660 Vac, 460 Vdc, BS88-2,
IEC 60269-2-1
UL Rating: A600, P600
AC Load Life Duty Cycle: 1200
operations per hr
10A: 110V pf 0.4 – 1 x 106
operations
5A: 250V pf 0.4 – 1 x 106 operations
2A: 660V pf 0.4 – 1 x 106 operations
Switching Capacity:
AC15 Rated Make/Break
(11 x le at 1.1 x Ue):
6 A: 120V pf 0.3
4 A: 240V pf 0.3
2 A: 660V pf 0.3
DC13 Rated Make/Break
(1.1 x le at 1.1 x Ue):
1.0 A: 125V
0.55 A: 250V
0.1 A: 660V L/R ≥ 0.95 @ 300 mS
10 A: 110V pure resistive
Maximum Ratings for Logic Level and
Hostile Atmosphere Application:
Max Amperes: 0.5 A
Max Volts: 120 Vac/Vdc
L/R ≥ 0.95 @ 300 mS
L/R ≥ 0.95 @ 300 mS
10250T101
Order Complete Devices
and a Legend Plate
Build Your Own System
+
10250TM47
OR
10250T29
+
10250T2
Note: To order complete system add a
contact block and legend plate to operator.
+
10250TM47
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10250T112
10250T63
10250T17213
10250T101
10250T172
10250T103
All models shown
smaller than actual size.
10250T411
10250T122
10250T79
1.5 (0.06) to 6.4 (0.25)
Dimensions: mm (in)
46
(1.81)
45.1
(1.78)
Flush and Long Pushbutton
Half Shroud is same as Long Pushbutton
with Lower Half of Guard Ring Cut Back
27.7
(1.09)
26.9
(1.06)
9.7
(0.38)
Long
Button
35.1
(1.38)
Only
Dimensions: mm (in)
28.7
22.4 (0.88)
For Each
Additional
Contact Block
(1.13)
Panel Thickness
41.4
(1.63)
44.5
(1.75)
To Order
MODEL NO. DESCRIPTION
10250T MOMENTARY PUSHBUTTON OPERATORS
10250T101 Black flush pushbutton operator
10250T103 Green flush pushbutton operator
10250T112 Red extended pushbutton operator
10250T122 Red mushroom head operator
10250T5 Push-pull maintained 2-position operator without lens
10250T17213 E-Stop mushroom operator
10250T411 Illuminated pushbutton operator, no lens, 120 Vac, incandescent
10250T172 Red jumbo mushroom head operator
10250T79 24/48V full votage push-pull light unit
10250T63 120V transformer incandescent push-pull light unit
Comes with retaining nut, operator gasket, and instruction sheet.
Ordering Example: 10250T101, black flush pushbutton operator.
63.5
(2.5)
38.1
(1.5)
Mushroom and
Jumbo Head
Pushbutton
Pushbuttons and Warning Lights
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10250T231N
10250T221N
10250T181N
All models shown
smaller than actual size.
To Order
MODEL NO. DESCRIPTION
10250T INDICATING LIGHTS
10250T221N Pres-test 120V transformer type, no lens
10250T231N Pres-test 120V full voltage/resistor type, no lens
10250T181N 120V transformer type, no lens
10250T201N 120V full voltage/resistor type, no lens
Comes with instruction sheet.
Ordering Example: 10250T221N, pres-test 120 V transformer type.
10250T201N
10250T3011
10250T1311
10250T3023
10250T1323
All models shown
smaller than actual size.
To Order
MODEL NO. DESCRIPTION
10250T SELECTOR SWITCHES – MAINTAINED
10250T1311 2-position maintained selector switch, knob
10250T1323 3-position maintained selector switch, knob
10250T3011 2-position maintained selector switch, lever
10250T3023 3-position maintained selector switch, lever
10250T15112 2-position maintained selector switch, keyed
10250T15237 3-position maintained selector switch, keyed
Coin Slot
Knob
Lever
A
OPERATOR DIM A mm (in)
Knob 35.1 (1.38)
Lever 38.1 (1.50)
Coin Slot 35.1 (1.38)
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Dimensions: mm (in)
Each Addl.
Contact Blk
45.2
(1.78)
Contact Blk
10250T2
10250T51
10250T1
22.4
(0.88)
All models
shown smaller
than actual size.
27.7
(1.09)
10250T3
10250T71
10250T53
10250T57
To Order
MODEL NO. DESCRIPTION
10250T PUSHBUTTONS CONTACT BLOCK
10250T2 Contact block—2 NO, 6 blocks can be stacked
10250T3 Contact block—2 NC, 6 blocks can be stacked
10250T51 Contact block—1 NC, 6 blocks can be stacked
10250T53 Contact block—1 NO, 6 blocks can be stacked
10250T1 Contact block—NO-NC, 6 blocks can be stacked
10250T71 Contact block—late opening NC
10250T47 Contact block—early closing NO and standard NC
10250T57 Contact block—early closing NO and standard NO, 4 blocks can be stacked
Comes with instruction sheet.
Ordering Example: 10250T2, contact block, 2 normally open.
10250T47
10250T20LB
10250T21LB
10250T23B
10250T25R
To Order
MODEL NO. DESCRIPTION
10250T COMMON COMPLETE DEVICES (INCLUDES CONTACT BLOCKS)
10250T20LB On/Off switch (black knob switch comes with NO/NC contact block)
10250T21LB H-O-A switch (black lever switch comes with 2 NO/2 NC contact blocks)
10250T23B Start button (black flush button comes with NO contact block)
10250T25R Stop button (red extended button comes with NC contact block)
10250T29 Emergency stop (red jumbo MRH button comes with NC contact block)
Comes with instruction sheet.
Ordering Example: 10250T29, emergency stop.
Pushbuttons and Warning Lights
10250T29
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All models shown
smaller than actual size.
10250TB63
10250TC47
10250TC63
10250TB62
10250TC57
10250TC53
To Order
MODEL NO. DESCRIPTION
10250T PUSHBUTTONS – HEAD AND LENS SELECTION TABLE
10250TB62 Red button for non-illuminated push-pull
10250TB63 Red (emergency stop) for non-illuminated push-pull
10250TJ62 Red jumbo mushroom head for non-illuminated push-pull
10250TJ63 Red jumbo mushroom head (emergency stop) for non-illuminated push-pull
10250TC47 Red lens for illuminated push-pull
10250TC53 Red (emergency stop) lens for illuminated push-pull
10250TC57 Red side-lighted anodized aluminum ring
10250TC63 Red (emergency stop) side-lighted anodized aluminum ring
Comes with instruction sheet.
Ordering Example: 10250TC57, red side-lighted anodized aluminum ring.
10250TC1N
10250TC13N
10250TC12N
All models shown
smaller than actual size.
10250TC15N
10250TC14N
10250TC9N
10250TC2N
10250TC8N
To Order
MODEL NO. DESCRIPTION
10250T LENS FOR INDICATING LIGHTS
10250TC12N White, glass (for indicating lights)
10250TC13N Red, glass (for PresTest or illuminated pushbuttons)
10250TC14N Green, glass (for PresTest or illuminated pushbuttons)
10250TC15N Amber, glass (for PresTest or illuminated pushbuttons)
10250TC19N Amber, plastic (for indicating lights)
10250TC1N Red, plastic (for indicating lights)
10250TC21 Red, plastic (for PresTest or illuminated pushbuttons)
10250TC22 Green, plastic (for PresTest or illuminated pushbuttons)
10250TC2N Green, plastic (for indicating lights)
10250TC43 Amber, plastic (for PresTest or illuminated pushbuttons)
10250TC6N White. plastic (for indicating lights)
10250TC7N Red, glass (for indicating lights)
10250TC8N Green, glass (for indicating lights)
10250TC9N Amber, glass (for indicating lights)
Comes with instruction sheet.
Ordering Example: 10250TC12N, white, glass.
10250TC6N
10250TC21
10250TC22
10250TC43
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10250TM47,
shown smaller
than actual size.
All models
shown
smaller than
actual size.
10250TM38,
shown smaller
than actual size.
To Order
MODEL NO. DESCRIPTION
10250T LEGEND PLATES
10250TM13 E-stop
10250TM24 Off
10250TM25 On
10250TM31 Run
10250TM33 Start
10250TM34 Stop
10250TM36 Blank
10250TM38 For/Rev
10250TM42 Off/On
10250TM47 Start/Stop
10250TM50 F-O-R
10250TM51 H-O-A
10250TM80 Power On
Comes with instruction sheet.
Ordering Example: 10250TM47, start/stop legend plate.
10250TN11
10250TN12
10250TN13
To Order
MODEL NO. DESCRIPTION
10250T ENCLOSURES
10250TN11 1-hole 2-contact block depth enclosures
10250TN12 2-hole 2-contact block depth enclosures
10250TN13 3-hole 2-contact block depth enclosures
10250TN14 4-hole 2-contact block depth enclosures
Comes with instruction sheet.
Ordering Example: 102TN12, 2-hole, 2 contact block depth enclosure.
28-3044
28-3754
28-3755
28-494
All models shown smaller than actual size.
28-5184
To Order
MODEL NO. DESCRIPTION
REPLACEMENT LAMPS
28-3044 120V, 10250T resistor indicating light
10250ED986-4 6.3V, 10250T flasher
28-2202 6.3V, 10250T transformer, PresTest and full voltage
28-5184 12V, 10250T full voltage
28-5185 24V, 10250T full voltage
28-5186 32V, 10250T full voltage
28-5187 55V, 10250T resistor
28-494 120V, 10250T neon
28-3754 120V, 10250T neon, T 31⁄4 bayonet
28-3755 24V, 10250T neon
Comes with instruction sheet.
Ordering Example: 28-3044, replacement lamp 120V
10250TN14
28-5185
Pushbuttons and Warning Lights
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