ECS40A
Littelfuse
ECSBulkChassis Mount
Ref. price$155.67 – $164.09
Lead time on requestGet quote
Littelfuse ECS4 General Purpose Relays Series
5 variants · Littelfuse
About the Littelfuse ECS4 General Purpose Relays Series
The Littelfuse ECS4 General Purpose Relays Series series groups 5 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common mounting of Chassis Mount, output signal of Relay and package of Bulk. Variants differ by delay time and trip range, so you can match the exact delay time your application requires using the selection guide below. All listed Littelfuse ECS4 General Purpose Relays Series part numbers are active and orderable.
Select a variant by
- Delay time
- 0.15 Sec to 7 Sec · 0.5 Sec to 50 Sec
- Trip range
- 0.5–5 A AC · 2–20 A AC · 5–50 A AC
Shared specifications
- Mounting
- Chassis Mount
- Output signal
- Relay
- Package
- Bulk
- Product type
- Current Sensing AC
- Supply voltage
- 120 VAC
- Temp operating max
- 60 °C
- Temp operating min
- -40 °C
Variant comparison
| Parameter | ECS40A | ECS40AC | ECS41BH | ECS4HBH | ECS41A |
|---|---|---|---|---|---|
| Delay time | 0.15 Sec to 7 Sec | 0.15 Sec to 7 Sec | 0.5 Sec to 50 Sec | 0.5 Sec to 50 Sec | 0.15 Sec to 7 Sec |
| Trip range | 0.5–5 A AC | 0.5–5 A AC | 2–20 A AC | 5–50 A AC | 2–20 A AC |
Request a quote on any Littelfuse ECS4 General Purpose Relays Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.