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Heyco Screw to Tab Terminal Blocks
Designed in accordance with IEC 685 and CENELEC 251 S2. Comply with BS3456.
 Recognized
under the Component Program of Underwriters' Laboratories File #E-76048
 Certified
by Canadian Standards Association File #LR-40455
VDE Approval
report 8721-1440-4010
- High working temperature.
- Available in Standard form for solid wire and Wire Protector form for stranded or
solid wire.
- Captive screws are in the open position to speed wire installation.
- Two 1/4" by 1/32" (6,3mm) by 0,8 mm) tabs per pole.
- FV 77-2 poles are marked L and N.
FV 77-3 poles are marked L, N and .
FV 77-4 poles are marked L1, L2, L3, and N.
- All sizes are rated at 600 volts (450 volts in Europe).
- Affix to chassis with No. 8 (M4) screws and nuts, or use self-tapping screws. An
anti-rotation spigot is incorporated into the base.
- Molded of type 6/6 glass-filled nylon. Self extinguishing. Flammability
classification 94V-O; temperature index 105°C.
Screw to (2) Tabs
| Wire Size |
North
America |
Europe |
Polec |
Part No. |
UL/CSA
Description |
Part Dimensions |
| AWG |
MM 2 |
Screws
(Metric) |
A
in mm |
B
in mm |
C
in mm |
D
in mm |
(Standard) |
| 10-14 |
4 |
20 |
16 |
2 |
1554 |
FV 77-2 |
M 3,5 x 7 |
.984
25,0 |
1.043
26,5 |
.846
21,5 |
.550
14,0 |
| 3 |
1556 |
FV 77-3 |
M 3,5 x 7 |
1.614
41,0 |
| 4 |
1558 |
FV 77-4 |
M 3,5 x 7 |
2.244
57,0 |
| (With
Wire Protector Flap) |
| 10-14 |
4 |
20 |
16 |
2 |
1555 |
FV 77-2 WP |
M 3,5 x 7 |
.984
25,0 |
1.043
26,5 |
.846
21,5 |
.550
14,0 |
| 3 |
1557 |
FV 77-3 WP |
M 3,5 x 7 |
1.614
41,0 |
| 4 |
1559 |
FV 77-4 WP |
M 3,5 x 7 |
2.244
57,0 |
Standard Color: Flame Retardant Brown.
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