| Operating method | Time-limit operation | ||||
| Reset method | Self-reset | ||||
| External connections | 8-pin socket | Top screw terminal | |||
| Contacts | Time-limit | SPST-NO + SPST-NO | SPST-NO + SPST-NO | ||
| Instantaneous | --- | SPST-NO | --- | SPST-NO | |
| Mounting method | Surface mounting/Flush mounting | Surface mounting | |||
| Model | H3BG-8 H3BG-8-30 |
H3BG-8H H3BG-8H-31 |
H3BG-F | H3BG-FH | |
| (1) H3CR-G8L H3CR-G8L-30 |
(2) H3CR-G8EL H3CR-G8EL-31 |
(3) H3CR-G8L with P2CF-8 etc. |
(4) H3CR-G8EL with P2CF-8 etc. |
||
Note:
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
| Compared item | H3BG | H3CR-G | Remarks |
| Supply voltage | 100/110/120 VAC 200/220/240 VAC |
100/110/120 VAC 200/220/240 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 |
Note:
1.The star-delta transfer time is the same.
2.The length of the square body part is the same.
