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Home > Products > ABB PLC >
ABB SPAJ140C Combined Overcurrent and Earth-Fault Relay

ABB SPAJ140C Combined Overcurrent and Earth-Fault Relay

SPAJ140C Combined Overcurrent

SPAJ140C Earth-Fault Relay

SPAJ 140 C RADIAL FEEDER PROTECTION

Place of Origin:

Sweden

Brand Name:

ABB

Model Number:

SPAJ140C

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Request A Quote
ABB SPAJ140C Combined Overcurrent and Earth-Fault Relay ABB SPAJ140C Combined Overcurrent and Earth-Fault Relay ABB SPAJ140C Combined Overcurrent and Earth-Fault Relay
Product Details
Highlight:

SPAJ140C Combined Overcurrent

,

SPAJ140C Earth-Fault Relay

,

SPAJ 140 C RADIAL FEEDER PROTECTION

Payment & Shipping Terms
Minimum Order Quantity
1
Packaging Details
Brand new and original
Delivery Time
2-3 work days
Payment Terms
T/T
Supply Ability
in Stock
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Product Description
ABB / RADIAL FEEDER PROTECTION
SPAJ 140 C
Combined Overcurrent and Earth-Fault Relay

I>
LOW-SET PHASE		 I>>
HIGH-SET PHASE		 Io>
LOW-SET EARTH		 Io>>
HIGH-SET EARTH
Confirm CT input, frequency and auxiliary-supply version
Sales Manager: Miya Zheng		 EMAIL   /   WHATSAPP
01
PROTECTION PATH
One relay, two measured quantities, four operating stages
SPAJ140C provides selective short-circuit and non-directional earth-fault protection for radial feeders in solidly earthed, resistance-earthed or impedance-earthed systems.
Phase CTs → SPAJ 140 C
SPCJ 4D29		 → Trip / Signal
CBFP


Residual CT →
02
RELAY SCREEN
Operating identity
Rated current 1 A or 5 A
Rated frequency 50 Hz or 60 Hz according to order
Low-set operation Definite time or IDMT
High-set operation Instantaneous or definite time
Breaker-failure function Built in
Self-supervision Continuous monitoring and auto-diagnosis
03
SETTING TRANSFER
Commissioning sequence
01 Match CT secondary - keep the relay input consistent with 1 A or 5 A wiring.
02 Transfer coordination - curve family, pickup, delay and time multiplier.
03 Confirm output routing - trip, signal and breaker-failure contacts.
04 Secondary injection - prove pickup, timing, outputs and indications.
AMIKON industrial automation supply

AMIKON / SINCE 2005
Protection spares for critical maintenance
Global support for PLC, HMI, DCS, protection and drive components.
12-month warranty   /   Responsive dispatch
Return support
Contact us within 7 days. Keep the item in original condition and state the reason. Return freight is handled by the buyer.
04
ENGINEERING FAQ
SPAJ140C decisions
Can a 5 A SPAJ140C replace a 1 A version?
Not without corresponding CT, wiring and setting changes.
Which SPAJ140C auxiliary-supply unit is required?
SPTU 240 R1 covers 80-265 V AC/DC; SPTU 48 R1 covers 18-80 V DC.
Can SPAJ140C preserve existing IDMT coordination?
Yes, when curve, pickup and time multiplier follow the approved protection study.
What should be tested after SPAJ140C replacement?
Pickup, timing, contacts, signalling and breaker-failure logic.
What should accompany a SPAJ140C quotation?
Rated current, frequency, auxiliary supply, module code and full label.
05 / RELATED INVENTORY
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ADEIP8H S1BB4D-06 More inventory available on request
Need ABB SPAJ140C?
Sales Manager: Miya Zheng		 sales@amikon.cn
WhatsApp: 86-18020776792
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