Allen Bradley 1492-RCDA RCD, 40A, 3+N Pole, 100mA, Type A

Subtotal (1 unit)*

£164.53

(exc. VAT)

£197.44

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 12 January 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£164.53

*price indicative

RS Stock No.:
136-8602
Mfr. Part No.:
1492-RCDA4B40
Brand:
Allen Bradley
Find similar products by selecting one or more attributes.
Select all

Brand

Allen Bradley

Circuit Breaker Type

RCD

Current Rating

40A

Number of Poles

3+N

Trip Sensitivity

100mA

Tripping Characteristics

Type A

Series

1492-RCDA

Overall Length

70mm

Rated AC Voltage

230 V, 400V

Reset Actuator Type

Toggle Switch

Overall Dimensions

70 x 88 x 75mm

Mounting Style

DIN Rail Mount

Terminal Contact Type

Screw

Breaking Capacity at Maximum Voltage Rating

1 (Residual) kA, 10 (Short-Circuit) kA

Overall Depth

75mm

Overall Width

88mm

COO (Country of Origin):
IT

1492 Series


Allen Bradley general purpose RCDs from the 1492 series. The RCDs have a Type A tripping characteristic and an instantaneous break time. 2 or 4 pole versions available. All the RCDs incorporate screw terminals and can be DIN Rail mounted.

Features & Benefits


2 or 4 pole versions
DIN Rail mount
Screw Terminals

Allen Bradley Type A Residual Current Device Switch, 40A Current Rating, 100mA Trip Sensitivity - 1492-RCDA4B40


Safely detect problems in your electrical circuits with this residual current device (RCD) switch from Rockwell Automation's Allen Bradley range. It automatically disconnects a circuit's conductors when it breaks, minimising the risk of shocks and electrical fires. The switch's instantaneous break time ensures a fast response for a high level of workplace safety. Thanks to its broad operating temperature range of -25°C to +55°C, it's suitable for use in demanding environments.

• Type A breaker is compatible with AC or DC power for versatile use
• Toggle switch reset actuator for a simple reset after tripping
• Designed for fast-clip DIN rail mounting to save time and effort during installation
• Long mechanical lifespan of 20,000 operations for long-lasting performance

Standards and Certifications


• CE (Conformitè Europëenne)
• UKCA (UK Conformity Assessed)
• UL (Underwriters' Laboratories)
• RoHS (Restriction of Hazardous Substances)

What kinds of faults cause an RCD to trip?


An RCD detects a dangerously high current in your circuit and trips to prevent the current from causing damage. The most common causes of a high current include loose electrical connections, damaged or faulty wiring, adverse weather conditions and moisture in the circuit or a connected appliance.


Allen Bradley RCBs

Related links