Finger-Safe Terminal Blocks

Finger-Safe Terminal Blocks

Product Features

Allen-Bradley has developed a product line of Finger-Safe terminal blocks that falls between the open-style NEMA/EEMAC terminal blocks and full-function IEC style terminal blocks. Features of our Finger-Safe product line include:

• Compact size to accommodate up to 100 terminations per foot (328 per meter) using the 1492-HM2 design.
  
• Recessed terminals for Finger-Safe protection.
  
• All products are UL Component Recognized and CSA Certified.
  
• Factory-shipped with backed out screws for ease of wiring.
  
• All products offer multi-rail mounting feet.
  
• 11 colors are available for easy circuit identification (H1, H2, HM1, HM2, and HM3).
  
• CE Marked for use in the European Union.
  

Fuse Blocks and Isolation Switches

In addition to our standard multi-rail terminal blocks, Allen-Bradley offers a wide range of fusible terminal blocks and isolation switches. Fuse blocks are available in three styles for greater application requirements: 1/4 in x 1-1/4 in fuse size, 13/32 in x 1-1/2 in fuse size, and the 1492-UF3 which uses a GMT-type alarm fuse. Isolation switches are also available in two separate sizes for matching circuitry.

Special Component Terminal Blocks

Allen-Bradley offers a varied line of special component blocks for your unique control designs and applications.

High Density Blocks

	1492-HM1		1492-HM2		1492-HM3
Dimensions are not intended to be used for manufacturing purposes. Note: Height dimension is measured from top of rail to top of terminal block.
Specifications	Finger-Safe terminal block, single-circuit, multi-rail mount.		Finger-Safe terminal block, two-circuit, multi-rail mount.		Finger-Safe terminal block, single-circuit, multi-rail mount.
Approvals
Voltage Rating	600V AC/DC		600V AC/DC		600V AC/DC
Maximum Current	30 A		24 A [IEC: 30 A]		55 A [IEC: 57 A]
Wire Range (Rated Cross Section)	#30…#12 AWG (0.05…4 mm2)		#30…#12 AWG (0.05…4 mm2)		#22…#8 AWG (0.5…10 mm2)
Wire Strip Length	0.38 in. (9.7 mm)		0.38 in. (9.7 mm)		0.38 in. (9.7 mm)
Recommended Tightening Torque	3…7 lb-in. (0.3…0.8 N•m)		3…7 lb-in. (0.3…0.8 N•m)		8…16 lb-in. (0.9…1.8 N•m)
Density	50 pcs./ft (164/m)		50 pcs./ft (164/m)		37 pcs./ft (123/m)
Insulation Temperature Range	–40…+221°F (–40…+105°C)		–40…+221°F (–40…+105°C)		–40…+221°F (–40…+105°C)
Terminal Blocks	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.
Color:White	1492-HM1	80	1492-HM3	50	1492-HM3	50
Color:Gold	1492-HM1GL	80	1492-HM2GL	50	—	—
Color:Red	1492-HM1RE	80	1492-HM2RE	50	1492-HM3RE	50
Color:Blue	1492-HM1B	80	1492-HM2B	50	1492-HM3B	50
Color:Black	1492-HM1BL	80	1492-HM2BL	50	1492-HM3BL	50
Color:Green	1492-HM1G	80	1492-HM2G	50	1492-HM3G	50
Color:Yellow	1492-HM1Y	80	1492-HM2Y	50	1492-HM3Y	50
Color:Brown	1492-HM1BR	80	1492-HM2BR	50	1492-HM3BR	50
Color:Violet	1492-HM1VT	80	1492-HM2VT	50	1492-HM3VT	50
Color:Grey	1492-HM1GY	80	1492-HM2GY	50	1492-HM3GY	50
Color:Orange	1492-HM1OR	80	1492-HM2OR	50	1492-HM3OR	50
Accessories (Accessories)	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.
Mounting Rails:     A-B Rail	1492-N1	20	1492-N1	20	1492-N1	20
3 ft Rigid A-B Rail	1492-N22	20	1492-N22	20	1492-N22	20
3 ft High-Rise A-B Rail	1492-N44	2	—	—	1492-N44	—
Standoff Brackets (use every 12 in.)	1492-N25	2	1492-N25	2	1492-N25	2
DIN Rail	199-DR1	10	199-DR1	10	199-DR1	10
1 m Symmetrical DIN (Aluminum)	1492-DR5	10	1492-DR5	10	1492-DR5	10
1 m Hi-Rise Sym. DIN (Aluminum)	1492-DR6	2	1492-DR6	2	1492-DR6	2
1 m Angled Hi-Rise Sym. DIN (Steel)	1492-DR7	2	1492-DR7	2	1492-DR7	2
End Barrier	1492-NM36	50	1492-NM40	50	1492-NM36	50
End Anchors: A-B Rail	1492-N23	10	1492-N23	10	1492-N23	10
A-B Rail — Normal Duty	1492-N47	50	—	—	1492-N47	50
A-B Rail — Retaining Clip — Light Duty	1492-N2	50	—	—	—	—
DIN Rail — Normal Duty	1492-EA35	50	1492-EA35	50	1492-EA35	50
DIN Rail — Heavy Duty	1492-EAH35	10	1492-EAH35	10	1492-EAH35	10
Color:=26,1165366	1492-N42	50	1492-N42	50	—	50
Color:=23,1165366	1492-SJ8-10	10	1492-SJ6-10	10	1492-SJ8-10	10
50-pole Uninsulated	1492-N39	10	1492-N39	10	—	—
Insulating Sleeve	1492-SJS	10	1492-SJS	10	—	—
Marking System	1492-MN81	5	1492-MN81	5	1492-MN81	5

High Density Blocks

	1492-H1		1492-H2
Dimensions are not intended to be used for manufacturing purposes. Note: Height dimension is measured from top of rail to top of terminal block.
Specifications	Finger-Safe terminal block, single-circuit, screw with pressure plate		Finger-Safe terminal block, two-circuit, screw with pressure plate.
Approvals
Voltage Rating	600V AC/DC		600V AC/DC
Maximum Current	30 A		24 A [IEC: 30 A]
Wire Range (Rated Cross Section)	#30…#12 AWG (0.05…4 mm2)		#30…#12 AWG (0.05…4 mm2)
Wire Strip Length	0.38 in. (9.7 mm)		0.38 in. (9.7 mm)
Recommended Tightening Torque	3…7 lb-in. (0.3…0.8 N•m)		3…7 lb-in. (0.3…0.8 N•m)
Density	50 pcs./ft (164/m)		50 pcs./ft (164/m)
Insulation Temperature Range	–40…+221°F (–40…+105°C)		–40…+221°F (–40…+105°C)
Terminal Blocks	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.
Color:White	1492-H1	80	1492-H2	50
Color:Gold	1492-H1GL	80	1492-H2GL	50
Color:Red	1492-H1RE	80	1492-H2RE	50
Color:Blue	1492-H1B	80	1492-H2B	50
Color:Black	1492-H1BL	80	1492-H2BL	50
Color:Green	1492-H1G	80	1492-H2G	50
Color:Yellow	1492-H1Y	80	1492-H2Y	50
Color:Brown	1492-H1BR	80	1492-H2BR	50
Color:Violet	1492-H1VT	80	1492-H2VT	50
Color:Gray	1492-H1GY	80	1492-H2GY	50
Color:Orange	1492-H1OR	80	1492-H2OR	50
Accessories (Accessories)	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.
Mounting Rails:     A-B Rail	1492-N1	20	1492-N1	20
3 ft Rigid A-B Rail	1492-N22	20	1492-N22	20
3 ft High-Rise A-B Rail	1492-N44	2	1492-N44	2
Standoff Brackets (use every 12 in.)	1492-N25	2	1492-N25	2
DIN Rail	—	—	—	—
1 m Symmetrical DIN (Aluminum)	—	—	—	—
1 m Hi-Rise Sym. DIN (Aluminum)	—	—	—	—
1 m Angled Hi-Rise Sym. DIN (Steel)	—	—	—	—
End Barrier	1492-N36	50	1492-N40	50
End Anchors: A-B Rail	1492-N23	10	1492-N23	10
A-B Rail — Normal Duty	1492-N47	50	—	—
A-B Rail — Retaining Clip — Light Duty	1492-N2	50	—	—
DIN Rail — Normal Duty	—	—	—	—
DIN Rail — Heavy Duty	—	—	—	—
Side Jumpers:2-Pole uninsulated	1492-N42	50	1492-N42	50
10-Pole uninsulated	1492-SJ6-10	10	1492-SJ6-10	10
50-pole Uninsulated	1492-N39	10	1492-N39	10
Insulating Sleeve	1492-SJS	10	1492-SJS	10
Marking Systems	1492-N41	50	1492-N41	50

Fuse and Surge Suppressor Blocks

	1492-HM2K024, -HMK120, -HMK240¬
Dimensions are not intended to be used for manufacturing purposes. Note: Height dimension is measured from top of rail to top of terminal block.
Specifications	Two-circuit blocks consisting of a series resistor/capacitor connected in parallel with a metal oxide varistor (MOV).
Approvals
Voltage Rating
	HM2K024	24V AC/DC
	HM2K120	12V AC/DC
	HM2K240	24V AC/DC
Working Voltage
	HM2K024	30V AC Max., 38V DC Max.
	HM2K120	140V AC Max., 180V DC Max.
	HM2K240	275V AC Max., 369V DC Max.
Maximum Current	24 A (Busses)
Peak Current (8/20 ms pulse)
	HM2K024	250 A
	HM2K120	150 A
	HM2K240
Leakage Current
	HM2K024	1 mA
	HM2K120	4.5 mA
	HM2K240	10.0 mA
Fuse Size (Not Supplied)	—
Wire Range (Rated Cross Section)	#30…#12 AWG (0.05…4 mm2)
Wire Strip Length	250 A
Recommended Tightening Torque	3…7 lb-in. (0.3…0.8 N•m)
Density	40 pcs./ft (131/m)
Insulation Temperature Range	50 pcs./ft (164/m)
Terminal Blocks	Cat. No.		Pcs./Pkg.
Color:White	1492-HM2K024, -HMK120, -HMK240		40
Accessories (Accessories)	Cat. No.		Pcs./Pkg.
Mounting Rails:     A-B Rail	1492-N1		20
3 ft Rigid A-B Rail	1492-N22		20
3' High Rise A-B Rail	—		—
Standoff Brackets (use every 12 in.)	1492-N25		2
DIN Rail	199-DR1		10
1 m Symmetrical DIN (Aluminum)	1492-DR5		10
1 m Hi-Rise Sym. DIN (Aluminum)	1492-DR6		2
1 m Angled Hi-Rise Sym. DIN (Steel)	1492-DR7		2
End Barrier	1492-NM40		50
End Anchors:     A-B Rail	1492-N23		10
A-B Rail — Normal Duty	—		—
DIN Rail — Normal Duty	1492-EA35		50
DIN Rail — Heavy Duty	1492-EAH35		10
Side Jumpers:     2-Pole uninsulated	1492-N42		50
10-Pole uninsulated	1492-SJ6-10		10
50-pole Uninsulated	1492-N39		10
Marking System	1492-MN81		5
¬ See page NEMA and IEC Terminal Block Component Specifications¬  for component specifications.

Resistor, Voltage Indicating, and Component Blocks

	1492-HM2RB…, HM2RC001¬ T		1492-HM2V24, -HM2V250, -HM2V600		1492-HM2C, -HM2D¬
Dimensions are not intended to be used for manufacturing purposes. Note: Height dimension is measured from top of rail to top of terminal block.
Specifications	Two-circuit block with a resistor between the upper and lower circuits.		Provides visual voltage indication across upper and lower terminals.		Two-circuit block with a component between the upper and lower circuits.
Approvals
Indicator Type	—		HM2V24	Red LED	—
			HM2V250	Neon
			HM2V600
Resistor Type	HM2RB…	Metal Oxide Film Resistor	—		—
	HM2RC001	Precision Wirewond Fixed Resistor
Voltage Rating	—		HM2V24	10…55V AC/DC	600V AC/DC
	HM2RB…	300V	HM2V250	100…300V AC (Indicator Control)
	HM2RC001	250V	HM2V600	200…600V AC (Indicator Control)
Maximum Current	HM2RB…	24 A (Bus), 0.25 VA (resistor)	24 A (Busses)		HM2C	10 A
	HM2RC001	24 A (Bus), 0.5 VA (resistor)			HM2D	24 A (Bus), 1 A (diode)
Indicator Circuit Current	—		HM2V24	4.0 mA @ 55V DC/ 0.6 mA @ 10V DC	—
			HM2V250	2.0 mA @ 300V AC
			HM2V600	0.6 mA @ 600V AC
Resistor Range	HM2RB…	10…4750 W, 1/4 W	—		—
	HM2RC001	249 W, 1/2 W
Wire Range (Rated Cross Section)	#30…#12 AWG (0.05…4 mm2)		#30…#12 AWG (0.05…4 mm2)		#30…#12 AWG (0.05…4 mm2)
Wire Strip Length	0.38 in. (9.7 mm)		0.38 in. (9.7 mm)		0.38 in. (9.7 mm)
Recommended Tightening Torque	3…7 lb-in. (0.3…0.8 N•m)		3…7 lb-in. (0.3…0.8 N•m)		3…7 lb-in. (0.3…0.8 N•m)
Density	50 pcs./ft (164/m)		50 pcs./ft (164/m)		50 pcs./ft (164/m)
Insulation Temperature Range	–40…+221°F (–40…+105°C)		–40…+221°F (–40…+105°C)		–40…+221°F (–40…+105°C)
Terminal Blocks	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.
Color:    Black	1492-HM2RB...¬ T ‡	1—	1492-HM2V24...¬	—1	1492-HM2C	—1
Accessories (Accessories)	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.	Cat. No.	Pcs./Pkg.
Mounting Rails:     A-B Rail	1492-N1	20	1492-N1	20	1492-N1	20
3 ft Rigid A-B Rail	1492-N22	20	1492-N22	20	1492-N22	20
3' High Rise A-B Rail	—	—	—	—	—	—
Standoff Brackets (use every 12 in.)	1492-N25	2	1492-N25	2	1492-N25	2
DIN Rail	199-DR1	10	199-DR1	10	199-DR1	10
1 m Symmetrical DIN (Aluminum)	1492-DR5	10	1492-DR5	10	1492-DR5	10
1 m Hi-Rise Sym. DIN (Aluminum)	1492-DR6	2	1492-DR6	2	1492-DR6	2
1 m Angled Hi-Rise Sym. DIN (Steel)	1492-DR7	2	1492-DR7	2	1492-DR7	2
End Barrier	1492-NM40	50	1492-NM40	50	1492-NM40	50
¬ See NEMA and IEC Terminal Block Component Specifications¬  for Component Specifications.
T See to select resistor value and complete the cat. no.

Type	Cat. No.	Pkg. Quantity	Cat. No.	Pkg. Quantity	Cat. No.	Pkg. Quantity
End Anchors:     A-B Rail	1492-N23	10	1492-N23	10	1492-N23	10
DIN Rail — Normal Duty	1492-EA35	50	1492-EA35	50	1492-EA35	50
DIN Rail — Heavy Duty	1492-EAH35	10	1492-EAH35	10	1492-EAH35	10
Side Jumpers:     2-Pole uninsulated	1492-N42	50	1492-N42	50	1492-N42	50
10-Pole uninsulated	1492-SJ6-10	10	1492-SJ6-10	10	1492-SJ6-10	10
50-pole Uninsulated	1492-N39	10	1492-N39	10	1492-N39	10
1 m Symmetrical DIN (Aluminum)	1492-DR5	10	1492-DR5	10	1492-DR5	10
1 m Hi-Rise Sym. DIN (Aluminum)	1492-DR6	2	1492-DR6	2	1492-DR6	2
1 m Angled Hi-Rise Sym. DIN (Steel)	1492-DR7	2	1492-DR7	2	1492-DR7	2
End Barrier	1492-NM40	50	1492-NM40	50	1492-NM40	50
End Anchors:     A-B Rail	1492-N23	10	1492-N23	10	1492-N23	10
DIN Rail — Normal Duty	1492-EA35	50	1492-EA35	50	1492-EA35	50
DIN Rail — Heavy Duty	1492-EAH35	10	1492-EAH35	10	1492-EAH35	10
Side Jumpers:     2-Pole uninsulated	1492-N42	50	1492-N42	50	1492-N42	50
10-Pole uninsulated	1492-SJ6-10	10	1492-SJ6-10	10	1492-SJ6-10	10
50-pole Uninsulated	1492-N39	10	1492-N39	10	1492-N39	10
Insulating Sleeve	1492-SJS	10	1492-SJS	10	1492-SJS	10
Marking System	1492-MN81	5	1492-MN81	5	1492-MN81	5

Short-Circuit Current Ratings

Short-Circuit Current Ratings — Fuse Ratings

Cat. No.	Wire CU AWG		Overcurrent Protection Fuse Required Class/Max. Amp Rating						Maximum Voltage	SCCR, RMS SYM [A]
	Line	Load	J	T	RK1	RK5	G	CC
1492-HM3	14…8	14…8	60	60	30	—	50	30	600	100,000
1492-HM1	14…12	14…12	35	35	—	—	30	30	600	100,000