Building Automation
Industrial Automation
Power Automation & Safety
Bangladesh Distributor
Question
What is an alternative model for the H3BA Multi-functional Timer?
Answer
1.It depends on the H3BA model. Refer to the following table.
| Functions | Four-operation multi-functional | Power ON-delay operation | |||
| Operating method | Time-limit operation | Time-limit operation | |||
| Reset method | Self-reset or external reset | Self-reset | |||
| External connection method | 11-pin socket | Top screw tightening terminal | 8-pin socket | ||
| Contact | Time-limit | SPDT | DPDT | SPDT | DPDT |
| Instantaneous | --- | --- | --- | DPDT | |
| Mounting method | Surface or flush mounting | Surface mounting | Surface or flush mounting | ||
| Model | H3BA | H3BA-FA | H3BA-8 | H3BA-8H | |
| (1) H3CR-A | (2) H3CR-A plus P2-CF-11 | (3) H3CR-A8 | (4) H3CR-A8E | ||
Note:The bottom row gives recommended alternative models or models with alternative functions. For details, see the following information.
2.The alternative model in column (1) is the H3CR-A. Because the length of the body is about 12 mm shorter than that of the H3BA, the Y92H-7 Hold-down Clips should be used instead of the Y92H-1 Hold-down Clips when using the PL11 Socket.
3.There is no alternative in column (2) because the H3CR-A has no top-wired terminal. However, an alternative timer function can be achieved by using the H3CR-A and the P2CF-11 Front Connecting Socket, and wiring to the Front Connecting Socket. If a top-wired terminal is required, see whether the H3DE-M/S Solid-state Timer or H2C-F Motor Timer can be used.
4.The alternative model in column (3) is the H3CR-A8. Because the length of the body is about 12 mm shorter than that of the H3BA-8H, the Y92H-8 Hold-down Clips should be used instead of the Y92H-2 Hold-down Clips when using the PF085A Socket and the Y92H-7 Hold-down Clips should be used instead of the Y92H-1 Hold-down Clips when using the PL08 Socket.
5.The alternative model in column (4) is the H3CR-A8E. The Hold-down Clips to be used are the same as those described for the H3BA-8 in column (3).
6.The alternative model in column (4) is the H3CR-A8E. The Hold-down Clips to be used are the same as those described for the H3BA-8 in column (3).
| Comparative item | H3BA Multi-functional Timer | H3CR-A Multi-functional Timer | Remarks |
| Appearance | Three external connection methods: Surface mounting with 8- or 11-pin socket, flush mounting with 8- or 11-pin socket, top screw tightening terminal | Two external connection methods: Surface mounting with 8- or 11-pin socket, flush mounting with 8- or 11-pin socket | Note 1 |
| Dimensions | Front: 48 x 48 Square body part: 44 x 44 x 63.7 mm (width x depth x length (Long body)) (Surface mounting/flush mounting type) | Front: 48 x 48 Square body part: 44 x 44 x 52.3 mm (width x depth x length (Short body)) (Surface mounting/flush mounting type) | Note 2 |
| Power supply voltage | 100, 110, 120 VAC 200, 220, 240 VAC 24 VAC, 50 VAC, 12 VDC, 24 VDC, etc. | 100 to 240 VAC, 100 to 125 VDC 24 to 48 VAC, 12 to 48 Vac | |
| Functions | H3BA: Four-operation multi-functional H3BA-8: Power ON-delay only | H3CR-A: Six-operation multi-functional H3CR-A8: Four-operation multi-functional (power supply) | |
| Applicable standards | UL, CSA, SEV, NK, LR | UL, CSA, NK, LR EN61812-1 compliance, CE mark |
Note:
1.The H3CR-A has no model that is equivalent to the top-wired terminal model of the H3BA-FA.
2.The length of the square body part of the H3CR-A is 52.3 mm (short body), which is approximately 12 mm shorter than the 63.7-mm (long body) length of the H3BA surface mounting/flush mounting type. Because of this, when using Hold-down Clips with an alternative model, the Hold-down Clips must be changed for models with a shorter body. The H3CR Series also has a long-body model, which is distinguished from the short-body model by adding the letter "L" to the model number.
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