CRRC eD12
CRRC eD12 at SITCE 2024
Manufacturer	Zhejiang CRRC
Bodywork	Gemilang Coachworks
Years in operation	TBC
Operators	TBC
Technical Data
Length	12 m
Motor	CRRC permanent magnet synchronous motor (PMSM)
Battery	CATL LFP (528 kWh)
Accessibility	Low Floor
Emission Standard	Zero tailpipe emissions

The CRRC eD12 is a battery-electric double-deck city bus offered by CRRC Electric Vehicle Co., Ltd. (中车电动). In Singapore, a 3-door 2-staircase version of this bus was co-developed by CRRC and ST Engineering, with bodywork construction by Gemilang Coachworks.

The bus was first spotted in Singapore in October 2024. Delivered in a Lush Green livery, this bus was exhibited at SITCE 2024, and could be a demonstrator unit to be offered to the Land Transport Authority (LTA) for revenue service trials.

In line with LTA’s ongoing efforts to rapidly electrify the public bus fleet, half of all public buses will be electric by 2030. Detailed coverage of this rollout can be found at Electric Buses in Singapore.

Manufacturer Background

CRRC Electric is an electric bus manufacturer in China, best known for its association with the CRRC conglomerate that builds rail vehicles. Between Jan–Aug 2023, it was the sixth-largest manufacturer in the Chinese new energy bus market by sales volume, with 1,519 buses sold. Apart from selling whole buses, CRRC Electric also sells electric drives and control electronics for electric buses, marketed as “T power”（T动力）.

Outside of its domestic market, CRRC Electric has seen volume orders in New Zealand, Sauri Arabia and South Korea, with limited trials of its buses in France, Hungary, Belarus and Malaysia.

Double-deck buses

CRRC previously supplied electric 2-axle double-deck chassis to New Zealand. In 2018, an initial fleet of 10 electric buses was launched, followed by 31 more from 2021. All these buses were built by local coachbuilder Kiwi Bus Builders and began service in Wellington.

In March 2024, a prototype three-axle double-deck (CRRC eD12 MAX) entered passenger service in Auckland, bodied by Gemilang Coachworks. In October 2024, Tranzit Group unveiled a similar Gemilang-bodied CRRC eD12 MAX as part of a fleet of 26 units acquired for service in Waikato and Auckland. These buses are equipped with 508 kWh CATL batteries and have a capacity of 80 seated and 20 standing passengers.

SITCE 2024

A CRRC eD12 bus intended for the Singapore market was showcased at the LTA-UITP Singapore International Transport Congress & Exhibition (SITCE) in November 2024.

The display model at SITCE 2024 featured a Lush Green vinyl wrap promoting AGIL Drivesafe+, an Advanced Driver Assistance System by ST Engineering. For exhibition purposes, the upper deck was modified to include tables and seating that faced each other.

Specifications

Specifications referenced here are from ST Engineering’s datasheet, with additional subsystem details based on observation.

CRRC eD12 – Specifications
Manufacturer	Zhejiang CRRC Electric Vehicle Corporation Limited
Dimensions	Length × Width × Height: 12000 mm × 2550 mm × 4390 mm
Wheelbase	5220mm + 1550mm
Weights	Laden Weight: 24,420 kg Maximum Laden Load: 7,460 kg (front), 6,560 kg (centre), 10,400 kg (rear)
Axles	Front Axle: ZF RL82A rigid steering axle Middle Axle: ZF RL82A tag rigid axle Rear Axle: ZF AV133
Tyres	275/70 R22.5
Electric Motor	CRRC permanent magnet synchronous motor (PMSM) Peak power 350kW; Peak torque 3500Nm; Maximum speed 3300rpm, liquid cooling
Battery	CATL Lithium iron phosphate (LFP) battery (Capacity 528 kWh) Charged via 2x DC plug-in chargers (CCS Type 2 connector); 175kW Single Gun / 280kW dual gun Cruising Range: 260km (urban bus driving cycles) / up to 310km (equal speed cycles)
Bodywork	Gemilang Coachworks bodywork Aluminium alloy body
EDS	Guangzhou Tongda Auto Electric Co., Ltd. Orange LED Matrix design.
PIDS	Guangzhou Tongda Auto Electric Co., Ltd. Exterior-facing LCD screen Interior lower deck & upper deck LCD screen Interior lower deck & upper deck LED text display
Driver Assistance	AGIL DriveSafe+ ADAS • Forward Collision Detection • Time to-Collision Monitoring • Lane Departure Detection • Pedestrian Collision Detection • Blind Spot Detection and Warning • Driver Anti-Fatigue System
Passenger Capacity	12 Seated (Lower Deck) + 51 Seated (Upper Deck) + 57 Standing = 120 Passengers Not including 2 foldable seats, 2 wheelchair bays
Other Specifications	• Electric steering booster pump • Electric air compressor • ECAS with kneeling function • Recirculating ball-type hydraulic power steering machine • Fire retardant, anti-rot treated structural plywood flooring with fire retardant, anti-slip material floor covering • UVC LED Air Disinfection System • Roof solar panel • Kiel Citos seats • Masats door systems • USB charging ports • Automatic wheelchair boarding ramp • Camera mirror system

Layout

The CRRC eD12 is a full-low-floor double-deck bus with three doors and two staircases. The full-low-floor layout is ideal for passenger movement, as the rear staircase leads directly to the third door, which encourages upper-deck passengers to exit from the rear door.

LTA’s preference for three-door buses is evidenced by LTA’s previous 100 double-deck bus order in 2019, which mandated a three-door two-staircase layout, with the rearmost exit door situated behind the rear axle. More recently, the 360 single-deck electric bus order in 2023 also required a three-door layout.

The bus has a capacity for up to 120 passengers; 63 seated and 57 standing.

Lower Deck

The lower deck of the bus includes 12 seats, 2 wheelchair bays (each with a foldable seat) and licensed standing space for up to 57 passengers. The design features a fully low-floor aisle from the entrance to the rear third door, enhancing accessibility.

CRRC eD12 – Interior – Left wheelchair bay

CRRC eD12 – Lower deck interior (Front section)

CRRC eD12 – Lower deck interior (Rear section)

Passenger seats are supplied by Kiel (model: Kiel Citos) and come upholstered in grey-blue or maroon seat covers. Stanchion poles are turquoise, a colour scheme similar to that of Volvo B5LH buses, with bell attachment areas coated in yellow to aid with visual identification.

Staircases

The bus is equipped with 2 staircases: the front staircase is located behind the driver’s cab, and the second is positioned at the rear, providing direct access to the third door.

This layout allows passengers to quickly exit from the upper deck, making alighting more convenient and efficient. Most passengers on the lower deck typically exit through the middle door.

Upper Deck

The upper deck seats 51 passengers. For the SITCE 2024 exhibition, a temporary seating arrangement was configured with rear-facing seats and tables to facilitate trade show discussions.

CRRC eD12 – Upper Deck front (Modified for SITCE 2024)

CRRC eD12 – Upper Deck seating (Modified for SITCE 2024)

Driver Cabin

The driver’s cabin is outfitted with the AGIL DriveSafe+ Advanced Driver Assistance System (ADAS), which includes forward and side blind spot monitoring, collision detection, and lane departure warnings. An Anti-Fatigue System is also included.

Additionally, the bus uses a camera-based mirror system instead of traditional wing mirrors. Two vertical CCTV monitors replicate the view of wing mirrors, while a third overhead monitor provides an overhead view of the front and front-left blind spots.