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1SAE901901R1011 ABB EH04-11N Auxiliary Contact Block 1NO/1NC
ABB EH04-11N is a 1NO/1NC auxiliary contact block with a 6 A conventional free-air thermal current, designed for tool-free side mounting on compatible ABB ESB..N installation contactors and EN..N installation relays.
£24.12
Why Choose the ABB EH04-11N Auxiliary Contact Block?
The ABB EH04-11N is a compact 1NO/1NC auxiliary contact block designed to extend the signalling and control capabilities of compatible ABB ESB..N installation contactors and EN..N installation relays. As part of the ABB EH04..N accessory range, it provides additional contacts for status indication, interlocking and control circuit functions.
This auxiliary contact block features one normally open and one normally closed contact, providing two complementary switching functions from a single accessory. It is designed for simple tool-free attachment to the left side of compatible ABB installation contactors and relays, helping simplify panel assembly, maintenance and system expansion.
The EH04-11N has a conventional free-air thermal current of 6 A for the auxiliary circuit and supports AC-15 and DC-13 control applications. Its compact side-mounted construction and screw terminals make it a practical accessory for electrical distribution, building automation and industrial control systems.
Key Advantages
- 1NO + 1NC auxiliary contact configuration for flexible signalling and control.
- Compatible with a wide range of ABB ESB..N contactors and EN..N installation relays.
- Tool-free mounting simplifies installation and maintenance.
- Compact side-mounted design minimises additional panel space.
- 6 A conventional free-air thermal current for auxiliary circuits.
- Screw terminals provide secure and straightforward wiring connections.
Key Features
- ABB EH04..N auxiliary contact block series.
- 1NO / 1NC auxiliary contact configuration.
- 6 A conventional free-air thermal current.
- 3 A AC-15 rated operational current at 415 V AC.
- 0.55 A DC-13 rated operational current at 125 V DC.
- Side mounting on compatible installation contactors and relays.
- Tool-free mechanical attachment.
- Screw-terminal electrical connections.
Reliable Auxiliary Control and Signalling
Auxiliary contact blocks such as the ABB EH04-11N provide additional low-power contacts that operate together with the associated contactor or relay. These contacts can be incorporated into control circuits for electrical interlocking, equipment status indication, feedback and sequencing without using the main power contacts.
The EH04..N range is designed for straightforward integration with ABB installation contactors and installation relays. Its tool-free side mounting allows the accessory to be clipped onto compatible devices quickly, while the 1NO/1NC configuration provides complementary contacts for flexible control circuit design.
Typical Applications
- Contactor status indication and feedback circuits.
- Electrical interlocking between contactors.
- Building automation and lighting control systems.
- Heating and load-control installations.
- Electrical distribution and control panels.
- Industrial automation and sequencing circuits.
Technical Specifications
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| Device Type | Auxiliary contact block | |
|---|---|---|
| Terminal Type | Screw | |
| Switching Current (A) | 3 A | |
| Series | EH04..N | |
| ABB order code | 1SAE901901R1011 | |
| Product type | Auxiliary contact block | |
| Auxiliary contacts | 1NO + 1NC | |
| Conventional free-air thermal current | 6 A | |
| Rated operational current AC-15 | 3 A at 415 V AC | |
| Rated operational current DC-13 | 0.55 A at 125 V DC | |
| Rated insulation voltage | 500 V | |
| Maximum operating voltage UL/CSA | 600 V AC/DC | |
| Maximum switching frequency (AC-15) | 360 cycles/hour | |
| Mounting type | Side mounting | |
| Mounting method | Tool-free clip-on | |
| Terminal type | Screw terminals | |
| Operating temperature | -25 to +55 °C | |
| Width | 9 mm | |
| Weight | approx. 0.040 kg | |
| Compatible products | ESB16..N, ESB20..N, ESB25..N, ESB40..N, ESB63..N, ESB100..N, EN20..N, EN25..N and EN40..N |
Frequently Asked Questions
What is the ABB EH04-11N used for?
The EH04-11N adds auxiliary contacts to compatible ABB ESB..N installation contactors and EN..N installation relays for signalling, feedback, interlocking and control circuit functions.
What contact configuration does the EH04-11N provide?
The EH04-11N provides one normally open contact and one normally closed contact (1NO + 1NC).
Which ABB devices are compatible with the EH04-11N?
It is suitable for ABB ESB16..N, ESB20..N, ESB25..N, ESB40..N, ESB63..N, ESB100..N, EN20..N, EN25..N and EN40..N devices.
What is the current rating of the ABB EH04-11N?
The auxiliary circuit has a conventional free-air thermal current of 6 A, with an AC-15 rated operational current of 3 A at 415 V AC.
How is the ABB EH04-11N installed?
The EH04-11N is designed for tool-free side mounting on compatible ABB installation contactors and relays and uses screw terminals for the electrical connections.
Trusted ABB Control Accessories
ABB EH04..N auxiliary contact blocks provide a compact and convenient way to expand compatible installation contactors and relays with additional signalling, feedback and interlocking contacts for modern electrical control systems.
