Single Row Molded Series GFT - GB terminal block | Leading source of dependable electrical components | Curtis Industries Electrical Components for Industry

Series GFT/GB

Features

Superior Construction - All terminals are molded in place with precision screw machined brass inserts which will not twist, virtually eliminating broken solder joints while providing a full mechanical thread system.

Ideal for Sub-Chassis or Thru-panel Application - No costly insulation or mounting set-up since feed-thru insulators are a integral part of the moldings. Feature provides a full 1/4" terminal to ground clearance even thru 1/16" chassis.

Durable Base Material - Made of black thermo-set phenolic, or high-impact, break resistant thermoplastic.

Electrical Rating - 20 amps/up to 600 volts

Compact Barrier-Type Design - Especially suited for electronic and control applications.

Feed-Thru, Printed Circuit or Surface Connection - One thru 26 terminals on 7/16" center-to-center spacing.

Broad Wire Range - UL Recognized for No. 22AWG to No. 12AWG, depending on type of external contact designated, with CSA requiring use of lugs on wire larger than 16AWG.

Terminal Flexability - External terminals available in three screw sizes with various internal terminal types.

Metric Screws - Available in GBPX and GFTX Series for export applications

Recognized under the Components Program of Underwriters Laboratories, Inc. Standard 1059, Guide No.XCFR2, File No.E62557.

Guide No.184-N-90, Report No.LR39186-1.

Variations
GFTX Turret-type solder pin	GFTPX .062" dia. printed circuit pin	GFTSX No.6.32 machine screw	GFTQX .250 x .031 QC Terminal "X" Material Only
GBSX Closed-back design	GBPX .062" dia. printed circuit pin	GBFTX Turret-type solder pin	GBPNX .062" dia. 90° printed circuit pin
*NOTE: Consult Factory for Minimums on GFTQLX and GBPNX

Internal Terminal Designations

GFTP	Printed circuit board design with .062" dia. tin-plated brass turret-type solder pin.

GFT	Tin-plated brass turret-type solder pin.

GFTS	Unplated brass insert. No.6-32 plated steel screw.

GBS	Unplated brass insert. Closed-back design which can be mounted on metal surface with no additional insulation required.

GBP	Printed circuit board design with .062" dia. tin-plated brass pin.

GBFT	Tin-plated brass turret-type solder pin.

GFTQX

.250 x .031 tin-plated brass quick connect tab terminal.

External Terminal Designations

GBFT,GBP,
GBS,GFT,GFTP

Screw terminal with No.6-32 plated steel* screw accepting up to No.12AWG wire.

GBFTA,GBPA,
GBSA,GFTA,
GFTSA,GFTPA

Screw terminal with No.8-32 plated steel* screw accepting up to No. 12 AWG wire.

GFTW,GBFTW,
GBPW,GFTPW,
GBSW,GFTSW

Wire clamp captivated to a No.6-32 plated steel screw accepting No. 20AWG to No 12AWG.

*Other materials available - contact factory or your local representative for additional information.

Engineering Specifications

Center-to-Center Spacing:
7/16" (11.11mm)

Wire Range: No.22AWG to No.12AWG. (CSA requires use of lugs on wire larger than No.16AWG)

Number of Terminals: 1 thru 26

Voltage Rating: CSA - 300 volts
UL -*150 volts -General Industrial
UL -**250 volts -Commercial
Appliances
UL -300 volts -Limited Energy
Applications
UL -600 volts -Limited Energy
Applications
*GFT,GFTP,GFTS,GFTAL rated for 300 volts.
**GFTQALX rated for 125 volts.

Tightening Torque:

Wire Binding Screw
Wire Clamp

9 in.-lb.
9 in.-lb

Current Rating: 20 amps. UL and CSA.

NOTE: Specifications contained herein are subject to change without notice.

Housing:

"X" Grade

Material	Phenolic	Polyphenylene Oxice

Continuous Use Temp. (UL Index)	150°C (302°F)	110°C (230°F)

Flammability Rating	94V-0	94V-0

Water Absorption (24hrs.% wt.gain)	.04%	.04%

Chemical Resistance	Slightly affected by 5% caustic solution.	Resistant to in-organic bases and acids - for organic substances contact factory for specific resistance.

Breakdown Voltage

GFT

Terminal - Terminal
Terminal - Ground

3,900V Typ.
5,800V Typ.

5,000V Typ.
7,900V Typ.

P.C. Board Drilling Directions

Dimensions

No. of Terminals	Mounting Dimensions		Overall Dimensions		Less Mounting Positions
No. of Terminals	Inches	Metric (mm)	inches	Metric (mm)	Inches	Metric (mm)
1	.875	22.22	1.250	31.75	.562	14.28
2	1.312	33.33	1.687	42.86	1.000	25.40
3	1.750	44.45	2.125	53.97	1.437	36.51
4	2.187	55.56	2.562	65.08	1.875	47.62
5	2.625	66.67	3.000	76.20	2.312	58.73
6	3.062	77.78	3.437	87.31	2.750	69.85
7	3.500	88.90	3.875	98.42	3.187	80.96
8	3.937	100.01	4.312	109.53	3.625	92.07
9	4.375	111.12	4.750	120.65	4.062	103.18
10	4.812	122.23	5.187	131.76	4.500	114.30
11	5.250	133.35	5.625	142.87	4.937	125.41
12	5.687	144.46	6.062	153.98	5.375	136.52
13	6.125	155.57	6.500	165.10	5.812	147.63
14	6.562	166.68	6.937	176.21	6.250	158.75
15	7.000	177.80	7.375	187.32	6.687	169.86
16	7.437	188.91	7.812	198.43	7.125	180.97
17	7.875	200.02	8.250	209.55	7.562	192.08
18	8.312	211.13	8.687	220.66	8.000	203.20
19	8.750	222.25	9.125	231.77	8.437	214.31
20	9.187	233.36	9.562	242.88	8.875	225.42
21	9.625	244.47	10.000	254.00	9.312	236.53
22	10.062	255.58	10.437	265.11	9.750	247.65
23	10.500	266.70	10.875	276.22	10.187	258.76
24	10.937	277.81	11.312	287.33	10.625	269.87
25	11.375	288.92	11.750	298.45	11.062	280.98
26	11.812	300.03	12.187	309.56	11.500	292.10
Dimensions shown are +/- 0.030"

How to Order
GB Series terminal blocks are ordered by listing a composite number made up of the model designation followed by the number of poles required for the application. Example: Type GBP 10-pole block becomes stock number GBP-10

Suffixes are used as follows:
A W C X	Denotes model with No.8-32 external screw terminal Denotes model with wire clamp replacing external screw terminal Denotes model less mounting positions Denotes model with thermoplastic molding

To specify quick-connect terminals, simply add the style number required. May be purchased factory-assembled or as customer-installed accessory.

The GBP-10 described above - made from thermo-set phenolic - and with wire clamp, less mounting positions thus converts to stock number GBPWC-10.


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