What is a substitute product for H3BG Star-delta Timers?
1.It depends on H3BG model. Refer to the following table.
|Operating method||Time-limit operation|
|External connections||8-pin socket||Top screw terminal|
|Contacts||Time-limit||SPST-NO + SPST-NO||SPST-NO + SPST-NO|
|Mounting method||Surface mounting/Flush mounting||Surface mounting|
H3CR-G8L with P2CF-8 etc.
H3CR-G8EL with P2CF-8 etc.
1.H3BG-8-30 and H3BG-8H-31 have special external connections, e.g., for power supplies. The external connections are the same as H3CR-G8L-30 Solid-state Timers and H3CR-G8EL-31.
2.The bottom row gives recommended substitute products or models with substitute functions. For details, refer to the following information.
2.The substitute product in column (1) is H3CR-G8L. For H3BG-8-30 with a special terminal arrangement, the substitute product is H3CR-G8L-30. This means that previously UL-certified timers will no longer satisfy the safety standard.
The terminal wiring will have to be changed, but it is recommended that H3BG-8-30 is replaced with H3CR-G8L with a standard terminal arrangement.
3.The substitute product in column (2) is H3CR-G8EL. For H3BG-8H-31 with a special terminal arrangement, the substitute product is H3CR-G8EL-31. This means that previously UL-certified timers will no longer satisfy the safety standard.
The terminal wiring will have to be changed, but it is recommended that H3BG-8H-31 is replaced with H3CR-G8EL with a standard terminal arrangement.
4.There is no substitute in column (3) because H3CR-G has no top screw terminals.
However, a substitute timer function can be achieved by using H3CR-G8L and P2CF-08 Front Connecting Sockets, and wiring to the Front Connecting Sockets.
If a top screw terminal is required, see whether H3DE-G Solid-state Timer can be used.
5.There is no substitute in column (4) because the H3CR-G has no top screw terminals.
However, a substitute timer function can be achieved by using H3CR-G8EL and P2CF-08 Front Connecting Sockets, and wiring to the Front Connecting Sockets.
Even if a top screw terminal is required, H3DE-G cannot be used because it doesn’t have instantaneous contacts.
6.General Comparison of H3BG and H3CR-G
|Supply voltage||100/110/120 VAC|
|Star time range||1 range, 4 scales, one multi-timer|
H3BG-8: 0.5 s to 100 s
|1 range, 4 scales, one multi-timer|
H3CR-G8L: 0.5 s to 120 s
|See note 1.|
|Max. star time||4 scales: 5, 10, 50, 100||4 scales: 6, 12, 60, 120|
1.The star-delta transfer time is the same.
2.The length of the square body part is the same.