Cutler Hammer, Div of Eaton Corp 10250T Series Accessories Catalog
47-148
Pushbuttons & Indicating Lights
30.5 mm Heavy-Duty Watertight/Oiltight
March 2008
10250T Series, Components — Contact Blocks
47
Contact Blocks
Standard Contact Blocks
■ UL A600/P600 rated
■ Color-coded plungers – red/green
for NC/NO circuits
■ Silver contact tips with “reliability
nibs”
■ Gray (opaque) or amber (translu-
cent) housings
■ Pressure plate or spade terminals
■ Fingerproof shrouds (for pressure
terminals only)
Logic Level Contact Blocks
■ UL A600/P600 rated
■ Color-coded plungers
■ Inert palladium knife-blade contacts
■ Gray (opaque) housings
■ Pressure plate or spade terminals
Special Function Contact Blocks
Table 47-234. Contact Blocks
Symbol Circuit Descriptio
Blank
No
Plunger
Blank
No
Plunger
Special Function Blocks
Blank
No
Plunger
Special Purpose Blocks
All 10250T contact blocks shown are suitable
for use on standard 10250T and E34 operators. These contact blocks are not suitable for
Class I Division 2 type 10250T or E34 devices.
Contact blocks with spade terminals are limited to a maximum of one contact block per
operator and minimum spacing between
devices is 2.5” (63.5 mm). Not suitable for
use in 10250T or E34 enclosures. Also available in amber housing. Not available with
fingerproof shrouds.
n/
Notes
1NC Stack up to 6 blocks (6 circuits)
unless otherwise noted.
1NO Stack up to 6 blocks (6 circuits)
unless otherwise noted.
NO-NC Stack up to 6 blocks (12 circuits)
unless otherwise noted.
2NC Stack up to 6 blocks (12 circuits)
unless otherwise noted.
2NO Stack up to 6 blocks (12 circuits)
unless otherwise noted.
LONC Late opening NC. Stack up to 6 blocks
(6 circuits) unless otherwise noted.
ECNO
Early closing NO and standard NC. Stack up to 6
blocks unless otherwise noted.
-NC
ECNO
Early closing NO and standard NO.
Stack up to 4 blocks unless otherwise noted.
-NO
2LONC Two late opening NC contacts. Stack up to 6
blocks unless otherwise noted.
LONC-
Overlapping contacts. Stack up to 4 blocks
unless otherwise noted.
ECNO
2NO-
Four circuits in single block depth. Rated 300V
max. Stack up to 4 blocks unless otherwise
2NC
noted.
■ UL A600/P600 rated
■ Color-coded plungers
■ Silver contact tips with “reliability
nibs”
■ Gray (opaque) housings
■ Pressure plate terminals only
Special Purpose Contact Block
■ Maximum 300V rated
■ Black plungers
■ Silver contact tips with “reliability
nibs”
■ Black (opaque) housings
■ Pressure plate terminals only
■ Fingerproof shrouds not available
Reliability Nibs
Reliability nibs are the hallmark of
Eaton’s Cutler-Hammer contact blocks.
A pointed silver nib on the contact tip
ensures reliable switching from logic
level (5V) up to 600V applications.
Standard Logic Level
Pressure
Terminals
10250T1
Special function contact blocks are not suitable for use with roto-push operators, 3position push-pull operators, or 4-position
selector switches.
ECNO contact blocks are not suitable for use
with 2-position joysticks or when operators
are used with padlock attachments.
Catalog
Number
10250T51 10250T59 10250T51E 10250T59E
10250T53 10250T60 10250T53E 10250T60E
10250T1 10250T40 10250T1E 10250T40E
10250T3 10250T42 10250T3E 10250T42E
10250T2 10250T41 10250T2E 10250T41E
10250T71
10250T47
10250T57
10250T45
10250T55
10250T44
Spade
Terminals
Price
Catalog
U.S. $
Number
— 10250T71E
— 10250T47E
— 10250T57E
— 10250T45E
— 10250T55E
—
Therefore standard contact blocks can
be used for most logic level applications where the contacts are not
exposed to any harsh environmental
conditions.
Palladium Contacts
Palladium, which is more inert than
gold, is well suited for voltages and
currents approaching zero and is recommended for applications where
environmental conditions are a factor.
Maximum Contact Block Mounting per Operator Type
Operator Max.
Pushbuttons 6 2- or 3-Position
Push-Pull
Operators
Roto-Push
Operators
Pressure
Terminals
Price
Catalog
U.S. $
Number
Special purpose 10250T44 contact blocks
are not suitable on selector switches or rotopush operators. Okay to use with 3-position
push-pull operators only on low voltage
(30V or less) circuits. Fingerproof shrouds
not available.
Operator Max.
Stack
Selector Switches
2 4-Position
Selector Switches
4 Joysticks 4
Spade
Terminals
Price
Catalog
U.S. $
Number
—
—
—
—
—
Price
U.S. $
Ratings . . . . . . . . . . . . . . . . . Page 47-116
Dimensions . . . . . . . . . . . . . Pages 47-160 – 47-162
Discount Symbol . . . . . . . . 1CD1C
Stack
6
4
For more information visit: www.eaton.com CA08102001E
March 2008
Contact Blocks (Continued)
Table 47-235. Contact Blocks with Fingerproof Shrouds
Symbol Circuit Description/
1NC Stack up to 6 blocks (6 circuits) unless otherwise noted. 10250T51P 10250T51EP
Blank
No
Plunger
1NO Stack up to 6 blocks (6 circuits) unless otherwise noted. 10250T53P 10250T53EP
Blank
No
Plunger
NO-NC Stack up to 6 blocks (12 circuits) unless otherwise noted. 10250T1P 10250T1EP
2NC Stack up to 6 blocks (12 circuits) unless otherwise noted. 10250T3P 10250T3EP
2NO Stack up to 6 blocks (12 circuits) unless otherwise noted. 10250T2P 10250T2EP
Notes
Pushbuttons & Indicating Lights
30.5 mm Heavy-Duty Watertight/Oiltight
10250T Series, Components — Contact Blocks
Standard Logic Level
10250T1CP
Pressure
Terminals
Catalog
Number
Price
U.S. $
Pressure
Terminals
Catalog
Number
47-149
Price
U.S. $
Special Function Blocks
Blank
No
Plunger
All 10250T contact blocks shown are suitable
LONC Late opening NC. Stack up to 6 blocks (6 circuits) unless
ECNO-NC Early closing NO and standard NC. Stack up to 6 blocks
ECNO-NO Early closing NO and standard NO. Stack up to 4 blocks
2LONC Two late opening NC contacts. Stack up to 6 blocks
LONC-ECNO Overlapping contacts. Stack up to 4 blocks unless
otherwise noted.
unless otherwise noted.
unless otherwise noted.
unless otherwise noted.
otherwise noted.
for use on standard 10250T and E34 operators. These contact blocks are not suitable
for Class I Division 2 type 10250T or E34
devices.
To order contact blocks with translucent
amber housing, change Suffix P to CP in
Catalog Number e.g. 10250T51CP.
Special function contact blocks are not suitable for use with roto-push operators, 3position push-pull operators, or 4-position
selector switches.
10250T71P
10250T47P
10250T57P
10250T45P
10250T55P
ECNO contact blocks are not suitable for use
10250T71EP
10250T47EP
10250T57EP
10250T45EP
10250T55EP
with 2-position joysticks or when operators
are used with padlock attachments.
47
CA08102001E For more information visit: www.eaton.com
Ratings. . . . . . . . . . . . . . . . . . Page 47-116
Dimensions. . . . . . . . . . . . . . Pages 47-160 – 47-162
Discount Symbol . . . . . . . . . 1CD1C
47-150
Pushbuttons & Indicating Lights
30.5 mm Heavy-Duty Watertight/Oiltight
10250T Series, Components — Contact Blocks
Contact Blocks (Continued)
Table 47-236. Amber Contact Blocks
Symbol Circuit Description/
1NC Stack up to 6 blocks (6 circuits)
Blank
No
Plunger
1NO Stack up to 6 blocks (6 circuits)
Blank
No
Plunger
NO-NC Stack up to 6 blocks (12 circuits)
2NC Stack up to 6 blocks (12 circuits)
2NO Stack up to 6 blocks (12 circuits)
Special Function Blocks
LONC Late opening NC. Stack up to 6 blocks
Blank
No
Plunger
ECNO
-NC
ECNO
-NO
Notes
10250T1C
unless otherwise noted.
unless otherwise noted.
unless otherwise noted.
unless otherwise noted.
unless otherwise noted.
(6 circuits) unless otherwise noted.
Early closing NO and standard NC. Stack
up to 6 blocks unless otherwise noted.
Early closing NO and standard NO. Stack
up to 4 blocks unless otherwise noted.
Standard Logic Level
Pressure
Terminals
Catalog
Number
Price
U.S. $
Spade
Terminals
Catalog
Number
Price
U.S. $
Pressure
Terminals
Catalog
Number
Price
U.S. $
Spade
Terminals
Catalog
Number
10250T51C 10250T59C 10250T51EC 10250T59EC
10250T53C 10250T60C 10250T53EC 10250T60EC
10250T1C 10250T40C 10250T1EC 10250T40EC
10250T3C 10250T42C 10250T3EC 10250T42EC
10250T2C 10250T41C 10250T2EC 10250T41EC
10250T71C
10250T47C
10250T57C
— 10250T71EC
— 10250T47EC
— 10250T57EC
—
—
—
March 2008
Price
U.S. $
47
2LONC Two late opening NC contacts. Stack
up to 6 blocks unless otherwise noted.
LONC-
Overlapping contacts. Stack up to 4
blocks unless otherwise noted.
ECNO
All 10250T contact blocks shown are suitable
for use on standard 10250T and E34 operators. These contact blocks are not suitable
for Class I Division 2 type 10250T or E34
devices.
To order amber contact blocks with fingerproof shrouds, change Suffix to CP in the
Catalog Number e.g. 10250T51CP. Not avail-
able with spade terminals.
10250T45C
10250T55C
Contact blocks with spade terminals are lim-
— 10250T45EC
— 10250T55EC
ited to a maximum of one contact block per
operator and minimum spacing between
devices is 2.5” (63.5 mm). Not suitable for
use in 10250T or E34 enclosures. Also available in amber housing. Not available with
fingerproof shrouds.
Special function contact blocks are not suit-
—
—
able for use with roto-push operators, 3position push-pull operators, or 4-position
selector switches.
ECNO contact blocks are not suitable for use
with 2-position joysticks or when operators
are used with padlock attachments.
Ratings . . . . . . . . . . . . . . . . . . Page 47-116
Dimensions . . . . . . . . . . . . . . Pages 47-160 – 47-162
Discount Symbol . . . . . . . . . 1CD1C
For more information visit: www.eaton.com CA08102001E
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